The document provides an overview of statically determinate structures and their analysis. It defines idealized structures and discusses different types of supports including pinned supports, roller supports, fixed supports, pin-connected joints and fixed-connected joints. It also presents examples of idealized structures showing various supports and loads, and determines reactions and internal forces through structural analysis. The summary highlights key points about idealized structures, different support types, and analyzing structures to determine unknown reactions and internal forces.
1. Structural design involves considering loads and stresses on building elements. Loads are categorized as dead loads and live loads. Dead loads include the self-weight of structural components while live loads represent temporary loads from occupancy and environmental factors.
2. Finite element analysis is used to analyze stresses and deflections in structures under applied loads. Composite structures using combined materials are also analyzed.
3. Fatigue stresses from repetitive or fluctuating live loads over time must also be considered in design.
4.internal loading developed in structural membersChhay Teng
1. The document describes analyzing internal loading developed in structural members.
2. It provides procedures for determining support reactions, drawing free-body diagrams, establishing equilibrium equations, and calculating shear forces and bending moments at points of interest.
3. Examples are included to demonstrate solving for unknown shear forces and bending moments at specific points on beams and cantilevers.
This document discusses simple connections and bolted shear connections. It introduces different types of simple connections using plates and various steel shapes. It then focuses on bolted shear connections, explaining the failure modes of bearing on the bolt or shear of the bolt. Equations for determining the shear capacity of a bolted connection based on bolt diameter and shear area are provided. Examples of single shear and double shear lap joints are shown and how to calculate their shear capacities. Overall, the document provides an overview of simple connections and bolted shear connections, emphasizing proper design to avoid failure.
This document discusses the design of two-way slabs. It introduces different types of two-way slabs including slab-on-beam, flat slab, flat plate floor, two-way ribbed slabs, and waffle slab systems. Factors to consider for the economical choice of concrete floor systems such as span, loading, and construction cost are presented. The document emphasizes using design concepts that account for nonlinear behavior and time-dependent effects like creep in the analysis and design of two-way slabs according to the ACI code.
1. This document provides information on the properties of reinforced concrete, including:
2. It discusses the factors that influence concrete strength such as water-cement ratio, aggregate type and size, use of admixtures, compaction and curing time.
3. Details are given on how concrete strength is affected by the size and shape of test specimens such as cylinders, cubes and prisms. Equations are provided relating the strengths obtained from different specimen geometries.
4. Reinforcement ratio and its effect on concrete strength is examined. Formulas for calculating reinforcement ratio based on area are also outlined.
This document provides information on deflection and the elastic curve. It discusses the moment-area method and conjugate beam method for calculating deflection. It also describes using a deflection diagram to represent the elastic curve. The document contains diagrams showing examples of beams with loads and supports, along with the corresponding bending moment and deflection diagrams. Equations for calculating deflection due to bending are also presented.
Project maha eang khut.plan sangkum thorVen Eang Khut
1. The document provides details about a 15-lesson course on citizenship consisting of 3 main sections: foundations of citizenship, principles of democracy, and civic participation.
2. The first section includes 5 lessons on the foundations of citizenship, covering topics like the definition of citizenship, types of citizens, and citizenship rights and responsibilities.
3. The second section includes 4 lessons on principles of democracy, covering topics like rule of law, separation of powers, and civil liberties.
4. The third section includes 6 lessons on civic participation, discussing things like voting, jury duty, community service, and political campaigns.
This document discusses types of structures and loads. It begins with an introduction to structures, which are comprised of elements like beams, columns, trusses, and cables that are designed to support and resist various loads.
Structural elements are then classified, with beams defined as elements that primarily resist bending loads, columns as elements that primarily resist axial loads, and trusses as assemblages of elements that form a rigid body to transfer loads.
Finally, common types of structures are described briefly, including trusses, which use a non-redundant system of elements in tension and compression, as well as cable and arch structures.
1. Structural design involves considering loads and stresses on building elements. Loads are categorized as dead loads and live loads. Dead loads include the self-weight of structural components while live loads represent temporary loads from occupancy and environmental factors.
2. Finite element analysis is used to analyze stresses and deflections in structures under applied loads. Composite structures using combined materials are also analyzed.
3. Fatigue stresses from repetitive or fluctuating live loads over time must also be considered in design.
4.internal loading developed in structural membersChhay Teng
1. The document describes analyzing internal loading developed in structural members.
2. It provides procedures for determining support reactions, drawing free-body diagrams, establishing equilibrium equations, and calculating shear forces and bending moments at points of interest.
3. Examples are included to demonstrate solving for unknown shear forces and bending moments at specific points on beams and cantilevers.
This document discusses simple connections and bolted shear connections. It introduces different types of simple connections using plates and various steel shapes. It then focuses on bolted shear connections, explaining the failure modes of bearing on the bolt or shear of the bolt. Equations for determining the shear capacity of a bolted connection based on bolt diameter and shear area are provided. Examples of single shear and double shear lap joints are shown and how to calculate their shear capacities. Overall, the document provides an overview of simple connections and bolted shear connections, emphasizing proper design to avoid failure.
This document discusses the design of two-way slabs. It introduces different types of two-way slabs including slab-on-beam, flat slab, flat plate floor, two-way ribbed slabs, and waffle slab systems. Factors to consider for the economical choice of concrete floor systems such as span, loading, and construction cost are presented. The document emphasizes using design concepts that account for nonlinear behavior and time-dependent effects like creep in the analysis and design of two-way slabs according to the ACI code.
1. This document provides information on the properties of reinforced concrete, including:
2. It discusses the factors that influence concrete strength such as water-cement ratio, aggregate type and size, use of admixtures, compaction and curing time.
3. Details are given on how concrete strength is affected by the size and shape of test specimens such as cylinders, cubes and prisms. Equations are provided relating the strengths obtained from different specimen geometries.
4. Reinforcement ratio and its effect on concrete strength is examined. Formulas for calculating reinforcement ratio based on area are also outlined.
This document provides information on deflection and the elastic curve. It discusses the moment-area method and conjugate beam method for calculating deflection. It also describes using a deflection diagram to represent the elastic curve. The document contains diagrams showing examples of beams with loads and supports, along with the corresponding bending moment and deflection diagrams. Equations for calculating deflection due to bending are also presented.
Project maha eang khut.plan sangkum thorVen Eang Khut
1. The document provides details about a 15-lesson course on citizenship consisting of 3 main sections: foundations of citizenship, principles of democracy, and civic participation.
2. The first section includes 5 lessons on the foundations of citizenship, covering topics like the definition of citizenship, types of citizens, and citizenship rights and responsibilities.
3. The second section includes 4 lessons on principles of democracy, covering topics like rule of law, separation of powers, and civil liberties.
4. The third section includes 6 lessons on civic participation, discussing things like voting, jury duty, community service, and political campaigns.
This document discusses types of structures and loads. It begins with an introduction to structures, which are comprised of elements like beams, columns, trusses, and cables that are designed to support and resist various loads.
Structural elements are then classified, with beams defined as elements that primarily resist bending loads, columns as elements that primarily resist axial loads, and trusses as assemblages of elements that form a rigid body to transfer loads.
Finally, common types of structures are described briefly, including trusses, which use a non-redundant system of elements in tension and compression, as well as cable and arch structures.
1. The document discusses the benefits of meditation and mindfulness for reducing stress and anxiety. It provides three examples of mindfulness practices including focusing on breathing, bodily sensations, and thoughts.
2. It then explains how regular meditation can help calm the mind and body. Practicing mindfulness of thoughts, feelings and sensations can provide clarity and insight.
3. The last paragraph summarizes that developing mindfulness through regular meditation practice can help one gain focus, reduce suffering, and find greater peace of mind.
1. The document discusses combined stresses, which are stresses from more than one source acting simultaneously on a structural component. It presents methods to analyze combined axial and bending stresses using superposition.
2. Equations are provided to calculate the combined stress from axial stress and bending stress. The maximum combined stress is calculated using superposition for a sample problem involving an I-beam with known loads.
3. A second example calculates the combined stresses in a pipe with an internal pressure and bending moment. The results demonstrate that the combined stress is highest at the extreme fibers where axial and bending stresses act together.
1. The sampling distribution for the sample means describes the distribution of sample means that would be obtained by taking all possible samples of a given size from a population.
2. It shows that as more samples are taken, the sample means will cluster more closely around the population mean.
3. The central limit theorem states that the sampling distribution for the sample means will be approximately normally distributed for large sample sizes, regardless of the distribution of the population.
15. beam analysis using the stiffness methodChhay Teng
1. The document discusses analyzing beams using the stiffness method. It introduces node coordinates and degrees of freedom, and defines member stiffness matrices for individual beam elements.
2. It provides examples of applying the method to simple structures like trusses and slider mechanisms by assembling the element stiffness matrices into a global stiffness matrix.
3. The method relates displacements at nodes to applied forces using the member stiffness matrices. This allows solving for unknown displacements given known forces or vice versa.
1. The document summarizes two reports from vanrinÞCatk and teyaFmμCatk about their work in the past week.
2. VanrinÞCatk's report details their work monitoring four construction sites, including overseeing worker safety and ensuring permits were in order.
3. TeyaFmμCatk's report describes monitoring three construction sites, including a road project and inspecting a bridge for structural integrity. Both worked to enforce proper safety and legal compliance.
The document appears to be about roof tile production and installation. It includes sections on:
1. Measuring and preparing the roof surface.
2. Selecting and installing the tiles, including laying underlayment and setting tiles at the appropriate angle.
3. Installing battens, ridges and other roof elements.
The document provides diagrams and specifications for tile sizes, roof measurements, angles and spacing for a proper roof installation. Proper preparation and installation techniques are emphasized.
12. displacement method of analysis moment distributionChhay Teng
1. The displacement method of analysis, also known as moment distribution, is an iterative technique for analyzing indeterminate structures by redistributing internal moments at joints.
2. Key concepts include member stiffness factors (K), which relate the member end moments (M) to angular displacements (θ), joint stiffness factors (KT), which are the sum of the connected member stiffness factors, and distribution factors (DF), which proportion the influence of each member on a joint based on its stiffness factor.
3. The method involves initially assuming end moments, calculating the distribution factors, and using them to calculate new end moments until the values converge within a specified tolerance. This allows determination of the internal forces throughout the structure.
This 3 sentence summary provides the key details from the document:
The document discusses the history of Cambodia from the 1st century CE to the early 15th century, covering topics such as the kingdom's origins, early Hindu and Buddhist influences, and notable rulers during this period. It also examines the cultural aspects of Cambodian society like religion, art, and architecture from the 8th to the 10th centuries. The text serves as a translation of a French language book on Cambodian history published in 1975.
1. The document discusses the history of Cambodia from 1960 to 1999, focusing on the rule of Prime Minister Lon Nol from 1973 to 1975 and Pol Pot's Khmer Rouge regime from 1975 to 1979.
2. It describes how the Khmer Rouge forcibly evacuated Phnom Penh and other cities, sending people to work in agricultural communes where they endured forced labor, starvation, and executions.
3. The era ended in 1979 when Vietnam invaded Cambodia and overthrew the Khmer Rouge, but the country continued to suffer from the impacts of the regime for many years through civil war and instability.
11. displacement method of analysis slope deflection equationsChhay Teng
1. The document discusses the displacement method of analysis known as the slope-deflection method. This method analyzes the deformations of structures using slope-deflection equations.
2. General procedures for the displacement method are described, including determining degrees of freedom and establishing slope-deflection equations for each member.
3. Slope-deflection equations relate the displacements (rotations and translations) of joints to member end actions (moments and shears). These equations allow determining member forces based on known joint displacements.
This document provides instructions for plastering and mortar work. It includes a list of tools needed for the job such as trowels, buckets, and brooms. It also provides details on mixing mortar, applying plaster, and techniques for smoothing and finishing walls. The document specifies mortar ratios and curing times. It aims to clearly explain the steps for plastering and mortaring work.
- The document discusses Fm'Bit (summary) and provides 3 key points:
1. Fm'Bit summarizes a 6 page document about reducing document errors. It discusses using careful reading and verification to create concise summaries.
2. Details are provided about how to write summaries, including focusing on main ideas and events rather than details. Summaries should be 3 sentences or less.
3. The importance of summarization for understanding documents is discussed. Practice making summaries to improve comprehension and recall of important information.
1. The document describes the steps to model and analyze a reinforced concrete slab using Robot Millennium V17.5 structural analysis software.
2. The modeling process involves defining the slab geometry, materials, loads, reinforcement, and running an analysis to check required reinforcement.
3. Key steps include setting the units to Metric, defining the slab thickness as 10cm of concrete, applying uniform live and dead loads of 1.5 and 1.4 kN/m2, specifying rebar with a diameter of 10mm and cover of 2cm, assigning load combinations, meshing, and solving for the required reinforcement.
1. The document discusses the importance of strategic planning for organizational development and effectiveness. It highlights the role of strategic planning in helping organizations achieve their goals and adapt to changes in their external environment.
2. Strategic planning is essential for identifying an organization's strengths and weaknesses, as well as opportunities and threats in the external environment. It allows organizations to allocate resources effectively to improve performance.
3. Strategic planning helps organizations maintain long-term sustainability by anticipating and responding to changes in the environment. It guides organizations to establish appropriate strategies and plans according to their mission and vision. Strategic planning enhances organizational resilience and competitiveness.
This document provides a summary of six topics from Buddhist scriptures:
1. Four contemplations - on the body, feelings, mind, and phenomena
2. Four sublime states - loving-kindness, compassion, empathetic joy, and equanimity
3. Six recollections - on the Buddha, Dharma, Sangha, virtues, generosity, deities
4. Four Brahmaviharas - boundless loving-kindness, compassion, empathetic joy, and equanimity
5. Five controlling faculties - faith, energy, mindfulness, concentration, wisdom
6. Three higher knowledges - psychic powers, divine eye, destruction of contaminants
For each topic, it
Nadab and Abihu's sin was especially severe because of who they were as the sons of Aaron the high priest, where they went by entering the Lord's presence in the tabernacle, and what they did by burning strange fire before God in disobedience. Their sin was further exacerbated by how they acted with disrespect and likely under the influence of alcohol. Their presumptuous sin was a far cry from momentary failings and showed a lack of sincerity and yielding to God.
Peter emphasizes the importance of knowledge and true knowledge of God and Jesus Christ. He stresses two foundations of his faith: as an eyewitness to Jesus' majesty, and the importance and authority of Scripture. Scripture is inspired by God and profitable for teaching, reproof, correction and training in righteousness. It reveals God's mysteries, gives us the power of spiritual life, and builds an imperishable life within us.
The document discusses what is involved in becoming and remaining a Christian according to the Bible. It involves having faith, confessing Christ, repenting of sins, being baptized, and living a faithful life until death. It also discusses what faithful service entails, such as being obedient, regularly attending worship, giving generously, helping others, and loving fellow Christians. The conclusion states that Christians' lives are one of the best ways to teach others about faith through good works.
1. The document discusses the benefits of meditation and mindfulness for reducing stress and anxiety. It provides three examples of mindfulness practices including focusing on breathing, bodily sensations, and thoughts.
2. It then explains how regular meditation can help calm the mind and body. Practicing mindfulness of thoughts, feelings and sensations can provide clarity and insight.
3. The last paragraph summarizes that developing mindfulness through regular meditation practice can help one gain focus, reduce suffering, and find greater peace of mind.
1. The document discusses combined stresses, which are stresses from more than one source acting simultaneously on a structural component. It presents methods to analyze combined axial and bending stresses using superposition.
2. Equations are provided to calculate the combined stress from axial stress and bending stress. The maximum combined stress is calculated using superposition for a sample problem involving an I-beam with known loads.
3. A second example calculates the combined stresses in a pipe with an internal pressure and bending moment. The results demonstrate that the combined stress is highest at the extreme fibers where axial and bending stresses act together.
1. The sampling distribution for the sample means describes the distribution of sample means that would be obtained by taking all possible samples of a given size from a population.
2. It shows that as more samples are taken, the sample means will cluster more closely around the population mean.
3. The central limit theorem states that the sampling distribution for the sample means will be approximately normally distributed for large sample sizes, regardless of the distribution of the population.
15. beam analysis using the stiffness methodChhay Teng
1. The document discusses analyzing beams using the stiffness method. It introduces node coordinates and degrees of freedom, and defines member stiffness matrices for individual beam elements.
2. It provides examples of applying the method to simple structures like trusses and slider mechanisms by assembling the element stiffness matrices into a global stiffness matrix.
3. The method relates displacements at nodes to applied forces using the member stiffness matrices. This allows solving for unknown displacements given known forces or vice versa.
1. The document summarizes two reports from vanrinÞCatk and teyaFmμCatk about their work in the past week.
2. VanrinÞCatk's report details their work monitoring four construction sites, including overseeing worker safety and ensuring permits were in order.
3. TeyaFmμCatk's report describes monitoring three construction sites, including a road project and inspecting a bridge for structural integrity. Both worked to enforce proper safety and legal compliance.
The document appears to be about roof tile production and installation. It includes sections on:
1. Measuring and preparing the roof surface.
2. Selecting and installing the tiles, including laying underlayment and setting tiles at the appropriate angle.
3. Installing battens, ridges and other roof elements.
The document provides diagrams and specifications for tile sizes, roof measurements, angles and spacing for a proper roof installation. Proper preparation and installation techniques are emphasized.
12. displacement method of analysis moment distributionChhay Teng
1. The displacement method of analysis, also known as moment distribution, is an iterative technique for analyzing indeterminate structures by redistributing internal moments at joints.
2. Key concepts include member stiffness factors (K), which relate the member end moments (M) to angular displacements (θ), joint stiffness factors (KT), which are the sum of the connected member stiffness factors, and distribution factors (DF), which proportion the influence of each member on a joint based on its stiffness factor.
3. The method involves initially assuming end moments, calculating the distribution factors, and using them to calculate new end moments until the values converge within a specified tolerance. This allows determination of the internal forces throughout the structure.
This 3 sentence summary provides the key details from the document:
The document discusses the history of Cambodia from the 1st century CE to the early 15th century, covering topics such as the kingdom's origins, early Hindu and Buddhist influences, and notable rulers during this period. It also examines the cultural aspects of Cambodian society like religion, art, and architecture from the 8th to the 10th centuries. The text serves as a translation of a French language book on Cambodian history published in 1975.
1. The document discusses the history of Cambodia from 1960 to 1999, focusing on the rule of Prime Minister Lon Nol from 1973 to 1975 and Pol Pot's Khmer Rouge regime from 1975 to 1979.
2. It describes how the Khmer Rouge forcibly evacuated Phnom Penh and other cities, sending people to work in agricultural communes where they endured forced labor, starvation, and executions.
3. The era ended in 1979 when Vietnam invaded Cambodia and overthrew the Khmer Rouge, but the country continued to suffer from the impacts of the regime for many years through civil war and instability.
11. displacement method of analysis slope deflection equationsChhay Teng
1. The document discusses the displacement method of analysis known as the slope-deflection method. This method analyzes the deformations of structures using slope-deflection equations.
2. General procedures for the displacement method are described, including determining degrees of freedom and establishing slope-deflection equations for each member.
3. Slope-deflection equations relate the displacements (rotations and translations) of joints to member end actions (moments and shears). These equations allow determining member forces based on known joint displacements.
This document provides instructions for plastering and mortar work. It includes a list of tools needed for the job such as trowels, buckets, and brooms. It also provides details on mixing mortar, applying plaster, and techniques for smoothing and finishing walls. The document specifies mortar ratios and curing times. It aims to clearly explain the steps for plastering and mortaring work.
- The document discusses Fm'Bit (summary) and provides 3 key points:
1. Fm'Bit summarizes a 6 page document about reducing document errors. It discusses using careful reading and verification to create concise summaries.
2. Details are provided about how to write summaries, including focusing on main ideas and events rather than details. Summaries should be 3 sentences or less.
3. The importance of summarization for understanding documents is discussed. Practice making summaries to improve comprehension and recall of important information.
1. The document describes the steps to model and analyze a reinforced concrete slab using Robot Millennium V17.5 structural analysis software.
2. The modeling process involves defining the slab geometry, materials, loads, reinforcement, and running an analysis to check required reinforcement.
3. Key steps include setting the units to Metric, defining the slab thickness as 10cm of concrete, applying uniform live and dead loads of 1.5 and 1.4 kN/m2, specifying rebar with a diameter of 10mm and cover of 2cm, assigning load combinations, meshing, and solving for the required reinforcement.
1. The document discusses the importance of strategic planning for organizational development and effectiveness. It highlights the role of strategic planning in helping organizations achieve their goals and adapt to changes in their external environment.
2. Strategic planning is essential for identifying an organization's strengths and weaknesses, as well as opportunities and threats in the external environment. It allows organizations to allocate resources effectively to improve performance.
3. Strategic planning helps organizations maintain long-term sustainability by anticipating and responding to changes in the environment. It guides organizations to establish appropriate strategies and plans according to their mission and vision. Strategic planning enhances organizational resilience and competitiveness.
This document provides a summary of six topics from Buddhist scriptures:
1. Four contemplations - on the body, feelings, mind, and phenomena
2. Four sublime states - loving-kindness, compassion, empathetic joy, and equanimity
3. Six recollections - on the Buddha, Dharma, Sangha, virtues, generosity, deities
4. Four Brahmaviharas - boundless loving-kindness, compassion, empathetic joy, and equanimity
5. Five controlling faculties - faith, energy, mindfulness, concentration, wisdom
6. Three higher knowledges - psychic powers, divine eye, destruction of contaminants
For each topic, it
Nadab and Abihu's sin was especially severe because of who they were as the sons of Aaron the high priest, where they went by entering the Lord's presence in the tabernacle, and what they did by burning strange fire before God in disobedience. Their sin was further exacerbated by how they acted with disrespect and likely under the influence of alcohol. Their presumptuous sin was a far cry from momentary failings and showed a lack of sincerity and yielding to God.
Peter emphasizes the importance of knowledge and true knowledge of God and Jesus Christ. He stresses two foundations of his faith: as an eyewitness to Jesus' majesty, and the importance and authority of Scripture. Scripture is inspired by God and profitable for teaching, reproof, correction and training in righteousness. It reveals God's mysteries, gives us the power of spiritual life, and builds an imperishable life within us.
The document discusses what is involved in becoming and remaining a Christian according to the Bible. It involves having faith, confessing Christ, repenting of sins, being baptized, and living a faithful life until death. It also discusses what faithful service entails, such as being obedient, regularly attending worship, giving generously, helping others, and loving fellow Christians. The conclusion states that Christians' lives are one of the best ways to teach others about faith through good works.
1. This document discusses continuous beams and frames, which are structural elements made of concrete slabs, beams, columns, and footings that are monolithically connected.
2. It describes how to calculate the maximum moment in continuous beams using basic elastic analysis and considering the loading application and moment redistribution. The maximum positive moments within a span and maximum negative moments at supports are also addressed.
3. Formulas are provided to calculate the maximum and minimum positive moments based on the beam's properties and span between supports. The analysis considers both statically determinate and indeterminate continuous beams.
1. This document discusses one-way slabs, including their types, design, and analysis according to the ACI Code.
2. The three main types of one-way slabs are: one-way solid slab, one-way joist floor slab (ribbed slab), and one-way floor system (two-way slab).
3. Design and analysis of one-way slabs must consider the slab's moment of inertia, load distribution, and requirements for minimum slab thickness according to the ACI Code.
1. Shear and diagonal tension are two failure modes of reinforced concrete beams. Shear failure occurs when the shear stresses exceed the shear capacity of the beam. Diagonal tension failure occurs due to cracking along a diagonal plane.
2. Shear stresses can be calculated using equilibrium equations that relate applied shear, shear capacity, and section properties. The shear capacity is generally limited to less than 1.5 times the square root of the concrete compressive strength.
3. Shear reinforcement such as stirrups or bent bars is used to improve the ductility and increase the shear capacity of beams subjected to high shear stresses. Codes specify minimum shear reinforcement ratios to prevent brittle shear failures.
7. approximate analysis of statically indeterminate structuresChhay Teng
This document provides an approximate analysis of statically indeterminate structures. It discusses the use of approximate methods to analyze trusses that are statically indeterminate due to the presence of redundant members. The analysis involves satisfying equilibrium equations at nodes by ignoring compatibility conditions. As an example, it shows the approximate analysis of a plane truss with joints A, B, C, and D. The forces in the members are determined by writing and solving the equations of equilibrium at the joints. Approximate methods provide quick estimates of member forces in statically indeterminate structures for preliminary design.
1) Plastic analysis was performed using the lower-bound theorem and equilibrium method to determine the collapse load of a W30x99 beam with continuous lateral support.
2) The working load was first determined by calculating the yield moment My. Once yielding occurred, the plastic moment capacity Mp was used.
3) Equilibrium of internal and external moments was satisfied at the collapse mechanism to determine the ultimate load. The uniqueness theorem confirmed this was the collapse load.
Iii flexural analysis of reinforced concreteChhay Teng
1. This document discusses the flexural analysis of reinforced concrete beams. It includes assumptions made for the analysis, procedures for determining the moment capacity, and calculations for strain conditions in different sections.
2. Methods are described for determining the moment capacity based on the reinforcement ratio and limiting the flexural strain to 0.003. Equations are provided to calculate the strain in the concrete and steel based on the section type (e.g. tension controlled, compression controlled).
3. Procedures for calculating the service load moment capacity using factors for dead and live loads are outlined. Equations are given for calculating the service load bending moment.
1. The document discusses using the energy method to calculate deflection in beams, trusses, and frames.
2. The energy method equates the external work done by loads to the internal strain energy stored in the deformed structure.
3. Beams, trusses, and frames can be analyzed by calculating the external work done by forces and moments, and equating it to the strain energy due to bending and twisting. Analytical expressions can then be developed relating the loads to deflections.
1. Deflection and cracking control are important for structural concrete members to ensure serviceability. The ACI Code provides provisions for calculating deflection and cracking.
2. Instantaneous deflection, also called immediate deflection, is the initial deflection of a structural member under load. It is related to the elastic behavior of the member.
3. Cracking moment is the moment at which tensile stresses in concrete first exceed the modulus of rupture, initiating cracking in the member. It can be calculated based on the section properties and concrete strength.
Vii. camber, deflection, and crack controlChhay Teng
This document discusses camber, deflection, and crack control in concrete structures. It introduces the basic assumptions used in deflection calculations, which include elastic behavior, modulus of elasticity, superposition principle, and tendon properties. It then describes the load-deflection relationship in three stages: precracking, postcracking, and postserviceability cracking. Formulas are provided for calculating cracking and serviceability loads based on modulus of rupture and concrete strength. Overall, the document provides an introduction to evaluating and controlling deflection and cracking in concrete members.
1. The document discusses the design of reinforced concrete columns under axial load.
2. It provides guidelines on column dimension, reinforcement ratio, and confining reinforcement according to ACI code.
3. Formulas for calculating the nominal axial load capacity of a column based on its cross-sectional area and steel reinforcement are presented.
3. analysis of statically determinate trussesChhay Teng
This document provides an analysis of statically determinate trusses. It begins by defining trusses and discussing common types of truss analysis. The types of trusses discussed include roof trusses, bridge trusses, and classifications of coplanar trusses. Various truss configurations are shown in figures, such as Pratt trusses, Warren trusses, and Howe trusses. The document also discusses forces in truss members and classifications of trusses based on their degree of determinacy.
This document discusses the effective length factor (K) used for calculating the effective length of slender columns. It provides three methods for determining K based on the restraint conditions at the column ends:
1. Using alignment charts and restraint factors (ψA and ψB) for the column and bracing members.
2. Equations relating K to ψmin for partially restrained columns.
3. A simplified equation for K if the column is hinged at one end.
Examples are given to calculate K using the alignment chart method for different bracing conditions. The effective length is important for evaluating the strength and stability of slender columns.
This document provides guidelines for civil engineering drawing practices in 3 chapters:
1. Structural drawing conventions - Defines scales, views, dimensions, and other structural drawing standards.
2. Drawing components - Details various drawing elements like lines, dimensions, symbols and annotations.
3. CAD drafting - Discusses computer-aided drafting techniques, templates, layers and other digital drafting practices.
The document establishes standards for civil engineering drawings to ensure consistency and clarity across projects. It covers topics like drawing layouts, line weights, dimensioning, modeling and documentation. Adherence to the guidelines will result in structural drawings that effectively communicate engineering design information.
1. The document discusses member design under compression and bending forces. It provides equations and diagrams for determining the plastic centroid, axial load capacity, moment capacity, and balanced or interaction conditions of members.
2. Safety provisions for member design include minimum reinforcement ratios and load factors that are applied to nominal member strengths based on material properties and cross section details.
3. Diagrams show load-moment interaction curves indicating regions of failure by compression, tension, or balanced flexure for members designed based on provisions in the document.
Ix. two way prestressed concrete floor systemsChhay Teng
This document provides an overview of two-way prestressed concrete floor systems. It discusses several analysis and design methods, including:
1. The semielastic ACI Code approach, which uses either the direct design method or equivalent frame method.
2. The yield-line method, which is based on classical elasticity but accounts for inelastic behavior and failure mechanisms.
3. Limit analysis theories for plates, which aim to determine lower bound and upper bound solutions for collapse loads.
4. The stripe method, which models the floor system using orthogonal stress fields.
The document emphasizes that two-way slabs and plates exhibit true two-way flexural behavior with bending resistance in both orthogonal
This document provides an introduction and overview of footings. It discusses the different types of footings, including wall footings, single footings, combined footings, cantilever or strap footings, continuous footings, raft or mat foundations, and pile caps. It also covers the distribution of soil pressure on footings and important design considerations such as footing size, shear strength, bearing capacity, settlement, dowel connections, and differential settlement. Footings are designed to safely transfer structural and soil loads to the ground.
1. The sampling distribution for the sample means describes the distribution of sample means that would be obtained by taking all possible samples of a given size from a population.
2. It shows that as more samples are taken, the sample means will cluster more closely around the population mean.
3. The central limit theorem states that the sampling distribution for the sample means will approximate the normal distribution as the sample size increases, regardless of the distribution of the population.
6. influence lines for statically determinate structuresChhay Teng
1) The document discusses influence lines for statically determinate structures like beams, trusses, and floor girders. It describes how to calculate and graph influence lines for reactions, shearing forces, and bending moments.
2) The procedures involve tabulating load positions and magnitudes, determining the maximum and minimum values from the influence lines, and deriving the mathematical expressions for the influence lines.
3) Several examples are provided to demonstrate calculating and graphing influence lines for reactions, shearing forces, and bending moments of beams and trusses.
14. truss analysis using the stiffness methodChhay Teng
1. The document discusses analyzing truss structures using the stiffness method. It begins by introducing the fundamentals of the stiffness method for truss analysis.
2. It describes how to derive the member stiffness matrix for each truss member, which relates the forces and displacements in the member's local coordinate system.
3. It provides equations to transform between the member's local coordinate system and the global coordinate system of the truss, in order to assemble the overall structure stiffness matrix for the truss.
1) The document discusses column theory and compression members. It introduces the concept of critical buckling load and explains how a column's slenderness ratio affects its buckling strength.
2) The theory of column buckling is explained using Euler buckling formula. The critical buckling load depends on the column's elastic modulus, moment of inertia, and length.
3) Buckling modes are determined by solving the differential equation for the deflection curve of the column. The first buckling mode occurs when the column length is equal to π√(EI/P).
Similar to 2.analysis of statically determinate structure (20)
This document provides an introduction and overview of Corus Advance structural sections for use in steel construction. It includes the following key points:
- Corus is a major UK and global steel producer and manufacturer of structural steel sections.
- Steel construction offers benefits like speed of construction, economy, flexibility, sustainability, and recyclability.
- The document contains selection of structural section property tables from the Corus Advance range to assist students in steel structure design.
- For the full listing of Advance section properties and capacities, the online "Blue Book" can be downloaded from the Corus website.
2009 ncdd-csf-technical-manual-vol-i-study-design-guidelinesChhay Teng
This document provides guidelines for the study and design of small-scale infrastructure projects funded by the Commune/Sangkat Fund in Cambodia. It introduces the technical forms and template designs used for roads, irrigation systems, water supply, education, health and sanitation projects. Guidelines are given on how to read and use the template drawings, which conform to the standards of relevant line ministries. The manual aims to support good quality project design and construction supervision that can be implemented with locally available skills and resources. Field visits by technical support officers are recommended to verify project needs and objectives.
The document provides an overview of concrete basics, including the materials used to make concrete, properties of concrete in different states, common concrete tests to measure workability and strength, and factors that affect the strength and durability of hardened concrete. Concrete is made by mixing cement, water, coarse and fine aggregates, and sometimes admixtures, and its workability and strength can be tested using slump and compression tests.
Rebar arrangement and construction carryoutChhay Teng
The document discusses rebar arrangement and construction procedures. It begins by emphasizing the importance of thoroughly understanding construction drawings before beginning work. It then provides details on different types of drawings used for construction, including plans, elevations, sections, and structural drawings. Finally, it discusses rebar characteristics, production processes, and standard symbols and terminology used in construction drawings.
1 dimension and properties table of w shapesChhay Teng
This document provides dimension and properties data for various W-shape steel beams, including their area, depth, web and flange dimensions, elastic properties, plastic modulus, and warping properties. Metrics such as the nominal weight, compact section criteria, moment of inertia, plastic section modulus, and warping constant are given for each beam designation. Over 30 different W-shape beams ranging in size from W1120x4.89 to W910x12.37 are listed with their respective dimension and mechanical properties.
2 dimension and properties table of s shapeChhay Teng
This table provides dimensional and mechanical properties for various S-shape steel beams. It includes properties like cross-sectional area, depth, wall thickness, elastic modulus, plastic modulus, shear center location, and weight. Properties are listed for beam designations ranging from S610x1.77 down to S80x0.08. The data allows comparison of key metrics across different standardized beam sizes.
3 dimension and properties table of hp shapeChhay Teng
This table provides dimensional properties and elastic properties for various HP-shape steel beams. It includes measurements like area, depth, web thickness, flange width and thickness, moment of inertia, plastic modulus, and polar moment of inertia. The data is sourced from an online structural drafting resource and specifies properties for beams with designations like HP360x1.71, HP300x1.23, and HP360x0.53.
4 dimension and properties table c shapeChhay Teng
This document provides dimensional and mechanical properties for various C-shaped cross section profiles. It lists nominal dimensions such as depth, web thickness, flange width and thickness, along with mechanical properties including section area, elastic modulus, plastic modulus, shear center location, polar moment of inertia, and warping constant. C-shapes ranging from 380x0.73mm to 80x0.073mm are specified. Key dimensional and mechanical properties are given to characterize each cross sectional geometry.
6 dimension and properties table of ipe shapeChhay Teng
This document provides dimensional properties for various IPE steel beam shapes. It includes dimensions, cross-sectional area, weight, section properties such as moments of inertia, and minimum dimensions for connections. The table lists data for IPE beams ranging from 80 mm to 600 mm, including their height, width, wall thicknesses, and other geometric properties.
This document provides dimensional properties and specifications for different profiles of IPN-shaped steel beams, ranging from IPN 80 to IPN 600. For each profile, it lists dimensions, cross-sectional area, weight, dimensional properties for detailing, and mechanical properties along the strong and weak axes. A total of 24 IPN profiles are defined in the table with increasing dimensions, areas, and load-bearing capacities from smaller to larger sizes.
8 dimension and properties table of equal leg angleChhay Teng
This document provides dimensional properties and specifications for equal leg angle steel beams of various sizes. It includes dimensions, cross-sectional area, weight, position of axes, surface area, and other mechanical properties. Sizes range from 20x20mm to 120x120mm beams with wall thicknesses of 3mm to 13mm.
The document provides dimensional properties for various UPE-shaped steel beams, including their height, width, wall thickness, flange thickness, area, weight, moments of inertia, and other specifications. Dimensions are given in millimeters and kilograms per meter. Beams range in size from a UPE 80 with a height of 80mm up to a UPE 400 with a height of 400mm.
This document provides dimensional properties for various UPN steel beam shapes. It includes dimensions for the height, width, thicknesses, radii, slopes, cross-sectional areas, weights, and other geometric properties. The table lists these specifications for UPN beams ranging in size from 80x45x6 mm to 400x110x14 mm.
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptxEduSkills OECD
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...indexPub
The recent surge in pro-Palestine student activism has prompted significant responses from universities, ranging from negotiations and divestment commitments to increased transparency about investments in companies supporting the war on Gaza. This activism has led to the cessation of student encampments but also highlighted the substantial sacrifices made by students, including academic disruptions and personal risks. The primary drivers of these protests are poor university administration, lack of transparency, and inadequate communication between officials and students. This study examines the profound emotional, psychological, and professional impacts on students engaged in pro-Palestine protests, focusing on Generation Z's (Gen-Z) activism dynamics. This paper explores the significant sacrifices made by these students and even the professors supporting the pro-Palestine movement, with a focus on recent global movements. Through an in-depth analysis of printed and electronic media, the study examines the impacts of these sacrifices on the academic and personal lives of those involved. The paper highlights examples from various universities, demonstrating student activism's long-term and short-term effects, including disciplinary actions, social backlash, and career implications. The researchers also explore the broader implications of student sacrifices. The findings reveal that these sacrifices are driven by a profound commitment to justice and human rights, and are influenced by the increasing availability of information, peer interactions, and personal convictions. The study also discusses the broader implications of this activism, comparing it to historical precedents and assessing its potential to influence policy and public opinion. The emotional and psychological toll on student activists is significant, but their sense of purpose and community support mitigates some of these challenges. However, the researchers call for acknowledging the broader Impact of these sacrifices on the future global movement of FreePalestine.
Chapter wise All Notes of First year Basic Civil Engineering.pptxDenish Jangid
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.pptHenry Hollis
The History of NZ 1870-1900.
Making of a Nation.
From the NZ Wars to Liberals,
Richard Seddon, George Grey,
Social Laboratory, New Zealand,
Confiscations, Kotahitanga, Kingitanga, Parliament, Suffrage, Repudiation, Economic Change, Agriculture, Gold Mining, Timber, Flax, Sheep, Dairying,
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) CurriculumMJDuyan
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
A Visual Guide to 1 Samuel | A Tale of Two HeartsSteve Thomason
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
24. Department of Civil Engineering NPIC
dMeNaHRsay³
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Ax nig Ay .
⎛3⎞ ⎛4⎞
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5
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5
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36. Department of Civil Engineering NPIC
2>36> kMNt;kMlaMgRbtikmμenRtg;TMrsMrab;FñwmpSM.
eKmansnøak;enARtg; A / E nig F .
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snμt;fa A CaTMrkl; B CatMNbgáb; nig C Ca CaTMr rocker É B CaTMrkl;. kMNt;bgÁúMkMlaMgRbti
tMNsnøak;. kmμtamTisedk nigTisQrenARKb;TMrTaMgGs;
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cMeNaT T.Chhay -59
38. Department of Civil Engineering NPIC
2>48> kMNt;kMlaMgRbtikmμenARtg;tMN A / B
nig C . snμt;tMNnImYy²CatMNsnøak; ehIytMN
B CatMNrwg.
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Garem:. snμt;r:tTMrsmBaØBIrRTEdk rail nigkMral
pøÚvrfePøIgEdlmanTMgn; 7.5kN / m nigRTbnÞúk
rbs;rfePøIg 100kN / m ¬rUbxageRkam¦. r:t
nImYy²manRbEvg 100kN / m . GnuvtþbnÞúkTaMg
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É C CaTMrbgáb;.
cMeNaT T.Chhay -61