Reliability and LRFD Specification شرح الكود المصرى للأحمال ECP-201_ Ch.2 _Lecture 5.pdf
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Reliability and LRFD Specification شرح الكود المصرى للأحمال ECP-201_ Ch.2 _Lecture 5.pdf LRFD COMBINATIONS Egyptian code for loads on buildings and structures سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت هنتعرف مع بعض على طريقة LRFD و مميزات استخدامها و هنقارنها مع طريقة ASD Ultimate combinations Load resistance factored design method advantages of LRFD factors for loads factors for strength Youtube :-https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured FaceBook Page:-https://www.facebook.com/Advanced-Structures-Smart-Engineers-100680119286424/?notif_id=1649169062355891¬if_t=page_user_activity&ref=notif Linked In:- https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
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Resistance and resistance factor in LRFD شرح الكود المصرى للأحمال ECP-201_ C...
Resistance and resistance factor in LRFD شرح الكود المصرى للأحمال ECP-201_ Ch.2 _Lecture 4
LRFD COMBINATIONS & methods شرح مبسط و سهل لطريقة تجميع الأحمال LRFD هنتعرف مع بعض على طريقة LRFD و مميزات استخدامها و هنقارنها مع طريقة ASD و نعرف أكثر من فى الطريقتين اقتصاديا أحسن و تطلع قطاعات تصميمية أقل سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
Egyptian code for loads on buildings and structures Ultimate combinations Load resistance factored design method advantages of LRFD factors for loads factors for strength
Youtube :-https://www.youtube.com/.../UCRmQWyw1F1cnD.../featured
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The document discusses load and resistance factor design (LRFD) methods for structural design. It provides information on:
1) Types of loads that must be considered in design like dead, live, and environmental loads. Load factors are used to increase calculated loads to account for uncertainties.
2) Resistance factors are used to reduce nominal member strength to account for variability in material strength and dimensions.
3) The LRFD method aims for a 99.7% reliability target where factored resistance must exceed factored loads based on load combinations outlined in codes.
Masonry Code Of Practice Amp
The document discusses various masonry design codes and philosophies. It explains that limit states design (LSD) is considered the most rational as it considers both safety under ultimate loads and serviceability under service loads, unlike working stress method (WSM) and ultimate load method (ULM). LSD has been adopted by most modern codes like ACI, IBC, and Eurocode. The document then discusses provisions for axial load, shear, and other limit states in different codes based on LSD and allowable stress design (ASD) formats.
Fatigue
1) Fatigue failure occurs when a machine component is subjected to repeated or fluctuating stresses over time. Small cracks can form and propagate rapidly under these conditions.
2) Materials have an endurance limit, which is the maximum stress amplitude that can be applied indefinitely without causing fatigue failure. This limit depends on factors like surface finish, size of the component, and type of stress.
3) The constant life diagram graphically shows the relationships between mean stress, stress amplitude, and the expected fatigue life of a material. It is used to determine if a given stress condition will cause fatigue failure over a specified number of load cycles.
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LRFD Load combination ECP-201_ Ch.2 _Lecture 3.pdf
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Egyptian code for loads on buildings and structures
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
هنتعرف مع بعض على طريقة LRFD و مميزات استخدامها و هنقارنها مع طريقة ASD
Ultimate combinations
Load resistance factored design method
advantages of LRFD
factors for loads
factors for strength
Youtube :-https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
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This document discusses testing, efficiency, and regulation of transformers. It describes how open circuit and short circuit tests are used to determine the parameters of an equivalent circuit model for a transformer. The open circuit test provides the magnetizing reactance and core loss resistance, while the short circuit test provides the winding resistance and leakage reactance. Transformer efficiency is defined and an expression is derived showing it depends on loading level and power factor. Maximum efficiency occurs when loading equals the ratio of core to copper losses. Regulation is also introduced but not defined. All-day efficiency accounts for varying loads over time to assess overall transformer performance.
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LRFD COMBINATIONS & methods شرح مبسط و سهل لطريقة تجميع الأحمال LRFD هنتعرف مع بعض على طريقة LRFD و مميزات استخدامها و هنقارنها مع طريقة ASD و نعرف أكثر من فى الطريقتين اقتصاديا أحسن و تطلع قطاعات تصميمية أقل سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
Egyptian code for loads on buildings and structures Ultimate combinations Load resistance factored design method advantages of LRFD factors for loads factors for strength
Youtube :-https://www.youtube.com/.../UCRmQWyw1F1cnD.../featured
FaceBook Page:-https://www.facebook.com/Advanced-Structures-Smart-Engineers-100680119286424/?notif_id=1649169062355891¬if_t=page_user_activity&ref=notif Linked In:- https://www.linkedin.com/.../mohamed-ismail-fe-civil.../
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The document discusses load and resistance factor design (LRFD) methods for structural design. It provides information on:
1) Types of loads that must be considered in design like dead, live, and environmental loads. Load factors are used to increase calculated loads to account for uncertainties.
2) Resistance factors are used to reduce nominal member strength to account for variability in material strength and dimensions.
3) The LRFD method aims for a 99.7% reliability target where factored resistance must exceed factored loads based on load combinations outlined in codes.
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The document discusses various masonry design codes and philosophies. It explains that limit states design (LSD) is considered the most rational as it considers both safety under ultimate loads and serviceability under service loads, unlike working stress method (WSM) and ultimate load method (ULM). LSD has been adopted by most modern codes like ACI, IBC, and Eurocode. The document then discusses provisions for axial load, shear, and other limit states in different codes based on LSD and allowable stress design (ASD) formats.
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1) Fatigue failure occurs when a machine component is subjected to repeated or fluctuating stresses over time. Small cracks can form and propagate rapidly under these conditions.
2) Materials have an endurance limit, which is the maximum stress amplitude that can be applied indefinitely without causing fatigue failure. This limit depends on factors like surface finish, size of the component, and type of stress.
3) The constant life diagram graphically shows the relationships between mean stress, stress amplitude, and the expected fatigue life of a material. It is used to determine if a given stress condition will cause fatigue failure over a specified number of load cycles.
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This document discusses applying the Wheatstone bridge circuit for strain gauge measurements. It begins by introducing the Wheatstone bridge circuit and how it can be used to measure small resistance changes from strain gauges. It then provides examples of using quarter, half, and full bridge circuits to measure strain on simple components like tension bars, bending beams, and twisted shafts. The key points are that full bridge circuits provide compensation of temperature effects, while quarter and half bridges can still be used to measure single stresses if temperature effects are not a concern. Bridges with more active strain gauges provide higher output signals and better compensation of interfering effects.
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Egyptian code for loads on buildings and structures
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
هنتعرف مع بعض على طريقة LRFD و مميزات استخدامها و هنقارنها مع طريقة ASD
Ultimate combinations
Load resistance factored design method
advantages of LRFD
factors for loads
factors for strength
Youtube :-https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-https://www.facebook.com/Advanced-Structures-Smart-Engineers-100680119286424/?notif_id=1649169062355891¬if_t=page_user_activity&ref=notif
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This document discusses testing, efficiency, and regulation of transformers. It describes how open circuit and short circuit tests are used to determine the parameters of an equivalent circuit model for a transformer. The open circuit test provides the magnetizing reactance and core loss resistance, while the short circuit test provides the winding resistance and leakage reactance. Transformer efficiency is defined and an expression is derived showing it depends on loading level and power factor. Maximum efficiency occurs when loading equals the ratio of core to copper losses. Regulation is also introduced but not defined. All-day efficiency accounts for varying loads over time to assess overall transformer performance.
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- Fatigue failure results from repeated or fluctuating stresses that are lower than the material's ultimate strength.
- It can be analyzed using stress-life, strain-life, or fracture mechanics methods, with stress-life most common for high-cycle fatigue.
- The stress-life approach estimates fatigue strength (Sf) based on stress levels and uses modifying factors to account for real-world differences from test specimens.
1-The Most Leaning towers in the world_ ECP-201_Lecture 12.pdf
هل برج بيزا هو أكتر برج مائل في العالم ولا فيه أبراج أكتر منه في الميل
فيه أبراج كتيير مائلة فى العالم زى برج بيج بن فى بريطانيا و برج باجودا فى الصين و برج نيفانيسك فى روسيا و برج بيزا فى إيطاليا
يا ترى إيه لغز ميل الأبراج و السر فى ميلها
ياريت اللى عارف الإجابة يكتبلنا في الكومينتات واللى مش عارف تعالوا نعرف مع بعض حكاية كل برج إيه و مين أكتر برج مائل في العالم و إيه السر في ميل كل برج
* محاضرة غنية و فيها معلومات كتيير عن أكثر الأبراج المائلة فى العالم
1- برج ساعة بج بن فى لندن
2-أودي كيرك فى دلفت - هولندا
3- برج كنيسة سان مارتينو فيسكوفو -إيطاليا
4- برج سويمبيكا -روسيا
5-برج نيفيانسك المائل-روسيا
6- برج معبد يونيان- باجودا المائل فى الصين
7- برج بيزا المائل
8- برجا بولونيا
9- كنيسة السيدات المحبوبات على الجبل- ألمانيا
10-برج كنيسة باد فرانكنهاوزن - ألمانيا
11-معبدهوما/ شيفا فى الهند
12- برج الجرس في سورهاوزن - ألمانيا
* بعد كده هنتكلم عن السر ورا ميل الأبراج المائلة
* بعد كده هنجاوب على سؤال إزاى بيقيسوا ميل وهبوط الأبراج المائلة
و فى الآخر هنعمل مقارنة بين الأبراج المائلة و المنشأت فى مصر القديمة
**************************************************************************
Youtube Channel:-
https://www.youtube.com/channel/UCRmQ...
FaceBook Page:-
https://www.facebook.com/groups/39296...
Linked In:-
https://www.linkedin.com/in/mohamed-i...
*********************************************************
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
شرح مبسط لاهم أساسيات كود الأحمال ومناقشة موضوعات مهم جدا فى طريقة حساب الأحمال المختلفة و مدخل للتعريف بهبوط الأساسات
*********************************************************
The most leaning Towers in the world
#civil #concrete_technology
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال #trending #trend #leaningtowerofpisa
#leaningtower
#tower
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#Temperature
#Thermal
#Expantion
#contraction
#Bridges #steel #concrete
#shrinkage
#concrete
#steel #creep
#هندسة
Dynamic Load on Buildings الأحمال الديناميكية على المبانى _ECP-201_ Ch.4 _Lec...
Dynamic Load on Buildings
الأحمال الديناميكية على المبانى
موضوع سهل و بسيط لو عند ماكينات أو أوناش تأخد تأثيرها إزاى
هل تأخد قيمة وزنها بس و لا تزود الحمل شوية عشان تأخد معاك فى الاعتبار التأثير الديناميكى للهتزازات اللى بتسببها الماكينات.
هنعرف فى الفيديو ده القيم الى نزودها عشان ناخد معانا التأثير الديناميكى اللى بتسببه المعدات و الماكينات
1- تأثير المصاعد
2- تأثير الأوناش
3- تأثير الماكينات المسببة للاهنتزازات
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
1- Dynamic load for elevators
2- dynamic load for cranes
3- Dynamic loads for vibrating machines
#civil #concrete_technology
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#Temperature
#Thermal
#Expantion
#contraction
#Bridges #steel #concrete
#Horizontal_load
#shrinkage #creep
#concrete
#steel #live #load
#هندسة
#الانكماش #الزحف
#dynamic #machine #crane
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This document presents an adaptive zone selection algorithm for distance protection of a transmission line with a midpoint connected STATCOM device. The algorithm aims to address challenges to distance protection posed by the presence of the STATCOM. It investigates the impact of the STATCOM on apparent impedance seen by distance relays under different fault conditions using EMTDC/PSCAD software. An adaptive setting is proposed that calculates a new reach based on system and STATCOM parameters to ensure proper operation of distance relays for both underreach and overreach scenarios. The performance of the proposed adaptive algorithm is evaluated through simulations of various single line to ground and three phase fault cases with different fault locations, resistances and system load angles.
Fs3410611066
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
Design of Solar PV Cell Based Inverter for Unbalanced and Distorted Industria...
PV cell is getting importance in low and medium power generation due to easy installation, low maintenance and subsidies in price from respective nation. Most of the loads in distribution system are unbalanced and distorted, due to which there will be unbalanced voltage and current occur at load and may disturb its overall performance. Due to these loads voltage unbalance, distorted voltage and current and variable power factors in each phase can be observed. An efficient algorithm to mitigate unbalanced and distorted load and source voltage and current in solar photo voltaic (PV) inverter for isolated load system was considered. This solar PV system can be applicable to remote located industrial loads like heating, welding and small arc furnace type distorted loads and also for unbalanced loads. The PV inverter is designed such that it will maintain nearly constant voltage magnitude and can mitigate harmonics in voltage and current near the load terminals. A MATLAB/ SIMULINK based solar PV inverter was simulated and results are compared with standard AC three phase grid connected system. The proposed shows that the inverter is having very less voltage and current harmonic content and can maintain nearly constant voltage profile for highly unbalanced system.
Calculation and comparison of circuit breaker parameters in Power World Simul...
A circuit breaker has ratings that an engineer uses for their application. These ratings define circuit breaker
performance characteristics. A good understanding of Ratings allow the electrical engineer to make a proper
comparison of various circuit breaker designs.
In this research work, the different ratings of circuit breaker were calculated. The other objective of this work
was comparison between ratings of existing circuit breaker and calculated ratings in POWER WORLD
SIMULATOR. Further, the impact of time delay in circuit breaker was studied. These calculations were
performed for rated current of 400 & 630 Amps. The results performed in POWER WORLD SIMULATOR
were shown better and information gained from the analysis can be used for proper relay selection, settings,
performances and coordination.
Calculation and comparison of circuit breaker parameters in Power World Simul...
A circuit breaker has ratings that an engineer uses for their application. These ratings define circuit breaker
performance characteristics. A good understanding of Ratings allow the electrical engineer to make a proper
comparison of various circuit breaker designs.
In this research work, the different ratings of circuit breaker were calculated. The other objective of this work
was comparison between ratings of existing circuit breaker and calculated ratings in POWER WORLD
SIMULATOR. Further, the impact of time delay in circuit breaker was studied. These calculations were
performed for rated current of 400 & 630 Amps. The results performed in POWER WORLD SIMULATOR
were shown better and information gained from the analysis can be used for proper relay selection, settings,
performances and coordination.
Dp35648654
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
7- 1st semester_BJT_AC_Analysis (re model)-1.pdf
The document discusses transistor AC modeling and analysis. It provides two common models used - the re equivalent model and h-parameter model. It then discusses important procedures for small signal AC analysis including replacing DC sources with shorts and capacitors with opens. Common configurations like common-emitter, common-base, and examples are analyzed. Input impedance, output impedance, and voltage gain are determined for different configurations both with and without bypassing the emitter resistor.
Beme lab-manual new (3) (1)2323
This document contains instructions and procedures for experiments on basic electrical and mechanical engineering concepts. It includes 7 experiments: 1) Ohm's Law, 2) Characteristics of series and parallel DC circuits, 3) Kirchhoff's voltage laws, 4) Kirchhoff's current laws, 5) Analysis of a silicon diode characteristic curve, 6) Analysis of half-wave and full-wave rectifiers, and 7) Identification of diode schematic symbols and observation of normal operations in a diode circuit. The experiments are designed to investigate circuit laws and properties of series, parallel, and diode circuits through construction of circuits and measurement of voltages and currents. Procedures and observations are recorded in tables for analysis and verification of theoretical concepts.
experimental stress analysis previous question papers
Experimental stress analysis is useful in many situations to analyze stresses. It has several merits over theoretical analysis alone, including the ability to validate theoretical models and account for real-world complexities. Two common methods are electrical resistance strain gauges and optical strain gauges. Electrical resistance strain gauges convert measured strain into a proportional output voltage based on the gauge's resistance and factor. Optical strain gauges like the Tuckerman gauge use polarized light and stress-induced birefringence to visualize strain patterns.
DE_Final1
This document analyzes diode emulation in synchronous buck converters operating under light load conditions. It discusses how diode emulation reduces output voltage ripple and inductor current ripple compared to continuous conduction mode. It also examines transient response and power losses. While diode emulation improves efficiency by reducing losses, extra transitions can cause overshoot during load changes. The document proposes a scheme to separate diode emulation transitions from regular load transients to reduce overshoot. Experimental results are presented to validate the analysis and effectiveness of the proposed scheme.
Elastic plastic fracture mechanics
In today’s lecture we present techniques for analyzing situations in which there can be large scale yielding, and determine expressions for the stress components inside the plastic zone. We will begin with a discussion of the J integral.
SMA
Determination of a Three - Phase Induction Machine Parameters
This document summarizes a lecture on determining the circuit model parameters of a three-phase induction motor. It outlines the objectives of the lecture and describes the procedures for conducting common induction motor tests, including DC, no-load, locked-rotor, and load tests. These tests are used to determine the motor's stator resistance, magnetizing reactance, stator and rotor reactances, rotor resistance, torque-speed characteristics, and other parameters. Formulas for calculating parameters from test data are provided.
Nf2421722176
This document discusses a method for determining the maximum permissible loading of a power system within voltage stability limits using Thevenin parameters. The method uses locally measurable quantities like bus voltage magnitude and active/reactive load power components. It represents the power system connected to a load bus as a Thevenin equivalent circuit. The maximum loading point is reached when the load impedance equals the Thevenin impedance. The proposed method can estimate maximum loading online without simulations and only requires locally measured data.
Errors analysis in distance relay readings with presence of facts devices
1) The document analyzes errors in distance relay readings with the presence of FACTS devices like STATCOM and SSSC.
2) It presents models of SSSC and STATCOM and studies their impact on the measured impedance seen by the distance relay for single line to ground faults.
3) The analysis shows how the measured impedance, and the ideal tripping characteristic of the distance relay, are affected by the location and operational conditions of FACTS devices.
Imply Logic Implementation of Carry Save Adder Using Memristors
Memristor is a two terminal fundamental passive element that provides arelation between electric charge„q‟ and
magnetic flux „Φ‟. It is a type of resistor with some memory property. Implication logic can be easily developed
using memristors. Implication logic can be implemented with less number of memristors in comparison with
silicon transistors. It has been proved that any Boolean expressions can be implemented with this logic
[3]and[4]. Carry save adder (CSA) circuits is built up with IMPLY logic with the basic gates obtained with
memristors and their working are briefly explained. The total number of memristors required iscompared with
the number of transistors required in constructing the same circuit with CMOS logic.
STRENGTH OF REINFORCED CONCRETE CORBELS – A PARAMETRIC STUDY
https://www.scopus.com/record/display.uri?eid=2-s2.0-85058064287&origin=inward&txGid=b05c06f1662d9d00a33f55f471e75bbb
STRENGTH OF REINFORCED CONCRETE CORBELS – A PARAMETRIC STUDY
Corbels are cantilever with small shear span to depth ratio (a/d) projected from
columns or walls to support precast members like beams, girders or dapped end beams.
Shear friction (SF) method is used to analyze and design reinforced concrete (RC)
corbels. Because of the small value of a/d, corbels are treated as deep beams. Using
strut and tie modeling (STM), they can be analyzed. In both SF and STM, there are
many parameters that affect the behavior of the corbels such as a/d, width (b),
compressive strength of concrete (f'c), yield strength of reinforcement (fy), and
horizontal to vertical load ratio (H/V). In the current study, according to ACI 318-14
provisions, the effect of these parameters were investigated using both SF and STM. It
was found that the shear capacity increases by about 32.6%, 26.3% and 31.2% for SF
and by about 54.1%, 50.4% and 30.9% for STM with increasing width, compressive
strength, and yield strength by about (100-300) %, (15-35) % and (400-600) %,
respectively. Whereas, shear capacity decreases by about 58.54% and 48.7% for SF
and about 59.4% and 33.2% for STM with increasing a/d and H/V by about (0.1-1.9)%
and (0-1)%, respectively. It was also seen that the results obtained by STM is more
reliable t
7 Machine design fatigue load
The document discusses fatigue failure and fatigue analysis. It begins by explaining that fatigue failure starts with a crack, usually at a stress concentration, which then propagates until sudden fracture. It then provides examples of fatigue failures and discusses different fatigue analysis methods. The key points are:
- Fatigue failure results from repeated or fluctuating stresses that are lower than the material's ultimate strength.
- It can be analyzed using stress-life, strain-life, or fracture mechanics methods, with stress-life most common for high-cycle fatigue.
- The stress-life approach estimates fatigue strength (Sf) based on stress levels and uses modifying factors to account for real-world differences from test specimens.
Similar to Reliability and LRFD Specification شرح الكود المصرى للأحمال ECP-201_ Ch.2 _Lecture 5.pdf (20)
Design, Simulation and Implementation of Flyback based, True Single Stage, Is...
Design, Simulation and Implementation of Flyback based, True Single Stage, Is...
Distance Algorithm for Transmission Line with Mid-Point Connected STATCOM
Distance Algorithm for Transmission Line with Mid-Point Connected STATCOM
Design of Solar PV Cell Based Inverter for Unbalanced and Distorted Industria...
Design of Solar PV Cell Based Inverter for Unbalanced and Distorted Industria...
Calculation and comparison of circuit breaker parameters in Power World Simul...
Calculation and comparison of circuit breaker parameters in Power World Simul...
Calculation and comparison of circuit breaker parameters in Power World Simul...
Calculation and comparison of circuit breaker parameters in Power World Simul...
experimental stress analysis previous question papers
experimental stress analysis previous question papers
Determination of a Three - Phase Induction Machine Parameters
Determination of a Three - Phase Induction Machine Parameters
Errors analysis in distance relay readings with presence of facts devices
Errors analysis in distance relay readings with presence of facts devices
Imply Logic Implementation of Carry Save Adder Using Memristors
Imply Logic Implementation of Carry Save Adder Using Memristors
STRENGTH OF REINFORCED CONCRETE CORBELS – A PARAMETRIC STUDY
STRENGTH OF REINFORCED CONCRETE CORBELS – A PARAMETRIC STUDY
STRENGTH OF REINFORCED CONCRETE CORBELS – A PARAMETRIC STUDY
STRENGTH OF REINFORCED CONCRETE CORBELS – A PARAMETRIC STUDY
More from mohamed Ismail
1-The Most Leaning towers in the world_ ECP-201_Lecture 12.pdf
هل برج بيزا هو أكتر برج مائل في العالم ولا فيه أبراج أكتر منه في الميل
فيه أبراج كتيير مائلة فى العالم زى برج بيج بن فى بريطانيا و برج باجودا فى الصين و برج نيفانيسك فى روسيا و برج بيزا فى إيطاليا
يا ترى إيه لغز ميل الأبراج و السر فى ميلها
ياريت اللى عارف الإجابة يكتبلنا في الكومينتات واللى مش عارف تعالوا نعرف مع بعض حكاية كل برج إيه و مين أكتر برج مائل في العالم و إيه السر في ميل كل برج
* محاضرة غنية و فيها معلومات كتيير عن أكثر الأبراج المائلة فى العالم
1- برج ساعة بج بن فى لندن
2-أودي كيرك فى دلفت - هولندا
3- برج كنيسة سان مارتينو فيسكوفو -إيطاليا
4- برج سويمبيكا -روسيا
5-برج نيفيانسك المائل-روسيا
6- برج معبد يونيان- باجودا المائل فى الصين
7- برج بيزا المائل
8- برجا بولونيا
9- كنيسة السيدات المحبوبات على الجبل- ألمانيا
10-برج كنيسة باد فرانكنهاوزن - ألمانيا
11-معبدهوما/ شيفا فى الهند
12- برج الجرس في سورهاوزن - ألمانيا
* بعد كده هنتكلم عن السر ورا ميل الأبراج المائلة
* بعد كده هنجاوب على سؤال إزاى بيقيسوا ميل وهبوط الأبراج المائلة
و فى الآخر هنعمل مقارنة بين الأبراج المائلة و المنشأت فى مصر القديمة
**************************************************************************
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سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
شرح مبسط لاهم أساسيات كود الأحمال ومناقشة موضوعات مهم جدا فى طريقة حساب الأحمال المختلفة و مدخل للتعريف بهبوط الأساسات
*********************************************************
The most leaning Towers in the world
#civil #concrete_technology
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال #trending #trend #leaningtowerofpisa
#leaningtower
#tower
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#Temperature
#Thermal
#Expantion
#contraction
#Bridges #steel #concrete
#shrinkage
#concrete
#steel #creep
#هندسة
Dynamic Load on Buildings الأحمال الديناميكية على المبانى _ECP-201_ Ch.4 _Lec...
Dynamic Load on Buildings
الأحمال الديناميكية على المبانى
موضوع سهل و بسيط لو عند ماكينات أو أوناش تأخد تأثيرها إزاى
هل تأخد قيمة وزنها بس و لا تزود الحمل شوية عشان تأخد معاك فى الاعتبار التأثير الديناميكى للهتزازات اللى بتسببها الماكينات.
هنعرف فى الفيديو ده القيم الى نزودها عشان ناخد معانا التأثير الديناميكى اللى بتسببه المعدات و الماكينات
1- تأثير المصاعد
2- تأثير الأوناش
3- تأثير الماكينات المسببة للاهنتزازات
Youtube Channel:-
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Linked In:-
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1- Dynamic load for elevators
2- dynamic load for cranes
3- Dynamic loads for vibrating machines
#civil #concrete_technology
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#Temperature
#Thermal
#Expantion
#contraction
#Bridges #steel #concrete
#Horizontal_load
#shrinkage #creep
#concrete
#steel #live #load
#هندسة
#الانكماش #الزحف
#dynamic #machine #crane
Creep Load of concrete_ECP-201_ Ch.4 _Lecture 9.pdf
موضوع مهم و ممتع جدا هنتعلم فيه إزاى نقدر نحسب الزحف فى الخرسانة (يعنى قيم الا نفعال الناتج من الزحف )و هندرس تأثير العوامل المؤثرة فى حدوث الزحف و نعرف الفرق بين الزحف الخطى واللاخطى
هنشرح كل ده بالأمثلة
1- مثال على الزحف الخطى
2- مثال على الزحف اللاخطى
هنشوف تأثير العوامل (الزمن و الرطوبة و مقاومة الخرسانة و قيمة الإجهاد) على الزحف
وإيه الفرق بين الزحف والانكماش على الخرسانة
و هل ممكن يحصوا فى نفس الوقت
و لو حصلوا هيكون تأثيرهم إزاى
و إزاى نسب الانفعال الناتج عنهم الاثنين
و إزاى نقيس قيم الانفعال و نحسب قيمة الانفعال الناتج من الزحف
لو العنصر الخرسانى جاف أو مبلل و لو معرض لدرجة حرارة أو انكماش
و فى الاخر هنشوف تأثير معالجة الخرسانة و طرق المعالجة على تقليل قيم الزحف
Determination of creep strain and load on concrete element with solved examples
1- Creep Linear example
2-Creep non Linear example
3-Factors affect on creep
4-relation between creep , shrinkage and time
5-how to measure creep and expansion in laboratory
6-curing effect on creep
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
شرح مبسط لاهم أساسيات كود الأحمال ومناقشة موضوعات مهم جدا فى طريقة حساب الأحمال المختلفة
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
#civil #concrete_technology
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#Temperature
#Thermal
#Expantion
#contraction
#Bridges #steel #concrete
#Horizontal_load
#shrinkage #creep
#concrete
#steel
#هندسة
#الانكماش #الزحف
Creep of Concrete زحف الخرسانة ECP-201_ Ch.4 _Lecture 8.pdf
محاضرة مهمة جدا هنتعرف فيها مع بعض إيه هو الزحف و وإيه العوامل المؤثرة فيه وقيم الا نفعال الناتج من الزحف و هنعرف تغير الزحف مع الزمن و تأثير الزحف على المنشأت الخرسانية
هنتكلم فى مواضيع كتيرة مهمة زي:-
1-الزحف فى الخرسانة
2-العوامل المؤثرة فى زحف الخرسانة
3-اخصائص الزحف
4-منحنى التشكل مع الزمن و تأثير الزحف عليه
5- تأثير الزحف على منحنى الإجهاد والإنفعال للخرسانة
6-قيم الانفعال الناتج عن زحف الخرسانة
7- معدل حدوث الانفعال الناتج عن زحف الخرسانة
8- التأثير السلبى للزحف على الخرسانة
9- التأثير الإيجابى للزحف على الخرسانة
10-تأثير الزحف على إجهاد الشد الناتج من الإنكماش
Creep strain and load on concrete element
Factors affect on creep
relation between creep and time
Effects of creep on concrete structures
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
شرح مبسط لاهم أساسيات كود الأحمال ومناقشة موضوعات مهم جدا فى طريقة حساب الأحمال المختلفة
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
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#civil #concrete_technology
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#Temperature
#Thermal
#Expantion
#contraction
#Bridges #steel #concrete
#Horizontal_load
#shrinkage
#concrete
#steel #creep
#هندسة
#الانكماش #الزحف
ECP-201_ Ch.4 Shrinkage Load for Concrete in ECP_Lecture 7.pdf
محاضرة مهمة جدا هنتعرف فيها مع بعض إزاى نقدر نحسب الا نفعال و الحمل الناتج من الانكماش و و العوامل المؤثرة فيه و ممكن ناخد قيمته كام لو مفيش معلومات
و هل الانكماش قيمته ثابتة مع الزمن و لا متغيرة و علاقتها إيه مع الزمن
هنشرح كل ده بالأمثلة
طب لو حبينا نحسبه معمليا نحسبه إزاى
هنتعلم مع بعض
1-قيم الانكماش الاسترشادية
2-العوامل المؤثرة عند حساب الانكماش (العوامل البيئية و العوامل الخاصة بالخرسانة)
3-الفرق بين الانكماش الحر والمقيد
4-حساب حمل انكماش الجفاف عند عمر محدد
5- مثال على حساب انفعال و حمل الانكماش
6-مثال على حساب انفعال الانكماش عند أزمنة مختلفة
7- اخبارات الانكماش و التمدد معمليا
Determination of shrinkage strain and load on concrete element with solved examples
Factors affect on shrinkage
relation between shrinkage and time
how to measure shrinkage and expansion in laboratory
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
شرح مبسط لاهم أساسيات كود الأحمال ومناقشة موضوعات مهم جدا فى طريقة حساب الأحمال المختلفة
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
#civil #concrete_technology
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#Temperature
#Thermal
#Expantion
#contraction
#Bridges #steel #concrete
#Horizontal_load
#shrinkage
#concrete
#steel
#هندسة
#الانكماش
ECP-201_ Ch.4 Shrinkage Types of Concrete_Lecture 6.pdf
Shrinkage Types of concrete
محاضرة مهمة هنتعرف فيها مع بعض إيه هو الانكماش و بيحصل إزاى و إيه أنواعه و الأشكال المختلفة لشروخ الانكماش و قد إيه و العوامل المؤثرة فيه و كيفية تجنب حدوثه
هنتعلم مع بعض أنواع الانكماش فى الخرسانة
1-الانكماش اللدن Plastic Shrinkage
2-الانكماش الذاتى Autogenous Shrinkage
3-الانكماش بالكربنة Carbonation Shrinkage
4-الانكماش الجاف Drying Shrinkage
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
شرح مبسط لاهم أساسيات كود الأحمال ومناقشة موضوعات مهم جدا فى طريقة حساب الأحمال المختلفة
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
#civil
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#Temperature
#Thermal
#Expantion
#contraction
#Bridges #steel #concrete
#Horizontal_load
#shrinkage
#concrete
#steel
ECP-201_ Ch.4 Temprature Load_Lecture 4.pdf
هنتعرف فى الفيديوده أكتر على حساب أحمال الحرارة على المبانى و المنشأت والكبارى
هنشوف الأضرار اللى ممككن تسببها ااحرارة نتيجة التمدد و الانكماش نتيجة تغير درجات الحرارة
هنشوف الأضرار على الكبارى و المنشأت المعدنية لعدم وجود فاصل تمدد حرارى كافى
هنتعلم مع بعض أشكال فواصل التمدد الحرارى فى
1- الكبارى
2- المنشأت المعدنية
3- المنشأت الخرسانية
4-مزيج من المنشأت المعدنية و الخرسانية
Egyptian code for loads on buildings and structures
Temperature loads on Bridges, Steel , concrete structures and hybrid system of buildings:-
1- Damages in Bridges due to thermal Expansion
2- Expansion joints in Bridges
3- Expansion joints in Buildings
4- Expansion joints in other structures (Railway)
5- Expansion joints in other structures (Pipeline)
6- Damages in Steel structures due to Thermal Expansion
7- Expansion joints in Steel Buildings and structures
8- Expansion joints in Concrete Buildings and structures
9- Expansion joints in Concrete structures with steel covering
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
شرح مبسط لاهم أساسيات كود الأحمال ومناقشة موضوعات مهم جدا فى طريقة حساب الأحمال المختلفة
***********************************************************************
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
*********************************************************************
#civil
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#Temperature
#Thermal
#Expantion
#contraction
#Bridges #steel #concrete
#Horizontal_load
ECP-201_ Ch.4 Horizontal Loads on Parapet _Lecture 3.pdf
هنتعرف فى الفيديوده أكتر على الأحمال الأفقية اللى بنستخدمها لتصميم حواجز الشرفات و الدراوى
Egyptian code for loads on buildings and structures
Horizontal Load on Parapet
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
شرح مبسط لاهم أساسيات كود الأحمال و تجميع الأحمال المختلفة
***********************************************************************
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
*********************************************************************
#civil
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#Horizontal_load #Parapet
ECP-201_ Ch.4 Live Load on Roofs and Examples _Lecture 2.pdf
هنتعرف فى الفيديوده أكتر على حساب الأحمال الحية على الأسقف
وهنتعرف أكثر على أنواع الأسقف من حيث الاستخدام و الجساءة و الميل
Egyptian code for loads on buildings and structures
Live load on roof types
1- Accessible rigid roof
2-Inaccessible rigid roof
3-Inaccessible flexible roof
Live load on (horizontal and sloped) roofs
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
شرح مبسط لاهم أساسيات كود الأحمال و حساب الأحمال المختلفة
***********************************************************************
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
*********************************************************************
#civil
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
#loads_on_buildings
#live_load
#roof
#Horizontal_load #Parapet
ECP-201_ Ch.4 Live Load_Lecture 1.pdf
شرح مبسط للأحمال الحية على المبانى و المنشأت
هنتعرف على أنواع الأحمال الحية و ناخد قيمتها كام
تخفيض الأحمال الحية فى المبانى السكنية متعددة الطوابق
شرح لاهم أساسيات كود الأحمال
Egyptian code for loads on buildings and structures
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
Live Load on buildings and structres
Reduction of live load values
***********************************************************************
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
*********************************************************************
#civil
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
#live_load #Reduction_of_live_load
Dead Load -Examples_ شرح الكود المصرى للأحمال ECP-201_ Ch.3 _Lecture 2.pdf
شرح مبسط لاهم أساسيات كود الأحمال و تجميع الأحمال المختلفة
هنتعرف أكتر على الأحمال الدائمة و الثابتة والأوزان الفعلية لكثيير من المواد
Egyptian code for loads on buildings and structures
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
***********************************************************************
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
*********************************************************************
#civil
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
ECP-201_ Ch.3 Dead Load_Lecture 1.pdf
شرح مبسط لاهم أساسيات كود الأحمال و تجميع الأحمال المختلفة
هنتعرف أكتر على الأحمال الدائمة و الثابتة والأوزان الفعلية لكثيير من المواد
Egyptian code for loads on buildings and structures
سلسلة شرح الكود المصرى للأحمال على المبانى و المنشأت
***********************************************************************
Youtube Channel:-
https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-
https://www.facebook.com/groups/392964992662149
Linked In:-
https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
*********************************************************************
#civil
#civil_engineering
#structure#structural_design#الكود_المصرى #كود_الأحمال
#Design #Code #loads #analysis #lecture #webinar #building
ECP-201_ Ch.2 Load combinations (ASD & LRFD )_Lecture 2B_Example.pdf
Egyptian code for loads on buildings and structures
load combinations
Ultimate load combinations (LRFD)
Load and Resistance Factor Design (LRFD)
Working Load combinations (ASD)
Allowable Stress Design(ASD)
شرح الكود المصرى للأحمال
Youtube :-https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-https://www.facebook.com/Advanced-Structures-Smart-Engineers-100680119286424/?notif_id=1649169062355891¬if_t=page_user_activity&ref=notif
Linked In:- https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
ECP-201_ Ch.2 Load combinations (ASD & LRFD )_Lecture 2.pdf
Egyptian code for loads on buildings and structures
load combinations concepts
Ultimate load combinations (LRFD)
Working Load combinations (ASD)
شرح الكود المصرى للأحمال
Youtube :-https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-https://www.facebook.com/Advanced-Structures-Smart-Engineers-100680119286424/?notif_id=1649169062355891¬if_t=page_user_activity&ref=notif
Linked In:- https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
PRMG195 - Rsik Management Case Study.pdf
This document outlines the risk management process for a case study project. It includes:
1. The risk management process with 6 steps: plan, identify, analyze qualitatively, analyze quantitatively, plan responses, and control risks.
2. A risk register containing 16 identified risks for the project with details like probability, impact, risk response strategies.
3. An update to the risk register after 29 months with one risk removed.
The document provides an overview of the risk management process applied to a case study project and the resulting risk register and monitoring.
ECP-201_ Ch.2 Definitions of Design Loads _Lecture 1.pdf
Egyptian code for Loads
chapter 2_ Lecture 1 Definition of design Loads (Dead load, Live Load, wind load, seismic load, Temperature)
شرح الكود المصرى للأحمال
#civil
#civil_engineering
#structure#structural_design#الكود_المصرى
#Design #Code #loads
#dead_load
#live_load #seismic_load #wind_load
Youtube :-https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-https://www.facebook.com/Advanced-Structures-Smart-Engineers-100680119286424/?notif_id=1649169062355891¬if_t=page_user_activity&ref=notif
Linked In:- https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
ECP-201_ Ch.1 Introduction- LEC2 _Part 2.pdf
ECP-201 Egyptian code for loads Lecture 2_Part-2
Introduction to design loads on structures and buildings according to Egyptian code.
Discussing code objectives (Performance, Durability, Aesthetic and Environment)
Also discuss Basic of load determination and code enhancement
شرح الكود المصرى للأحمال
#civil
#civil_engineering
#structure#structural_design#الكود_المصرى
#Design #Code #loads
Youtube :-https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-https://www.facebook.com/Advanced-Structures-Smart-Engineers-100680119286424/?notif_id=1649169062355891¬if_t=page_user_activity&ref=notif
Linked In:- https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
ECP-201_ Ch.1 Introduction- LEC2 _Part 1.pdf
ECP-201 Egyptian code for loads Lecture 2_Part-1
Introduction to design loads on structures and buildings according to Egyptian code.
Discussing code objectives (safety, Economic, Function and serviceability)
شرح الكود المصرى للأحمال
Youtube :-https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-https://www.facebook.com/Advanced-Structures-Smart-Engineers-100680119286424/?notif_id=1649169062355891¬if_t=page_user_activity&ref=notif
Linked In:- https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
ECP-201_ Ch.1 Introduction - LEC1.pdf
Egyptian code for loads and forces on building and structures
ECP-201 Lecture 1 Introduction
overview on code
High rise Building
Industrial building and residential buildings
Famous structures in Egypt
الكود المصرى لحساب الأحمال و القوى على المبانى و المنشأت
Youtube :-https://www.youtube.com/channel/UCRmQWyw1F1cnD_XvoBhgv1Q/featured
FaceBook Page:-https://www.facebook.com/Advanced-Structures-Smart-Engineers-100680119286424/?notif_id=1649169062355891¬if_t=page_user_activity&ref=notif
Linked In:- https://www.linkedin.com/in/mohamed-ismail-fe-civil-07667478/
The best value for procurement
The document discusses procurement methods for construction projects, comparing the traditional lowest-bid approach to the best value (BV) approach. It outlines that the traditional approach can lead to lower quality work, cost and time overruns, and legal issues. The BV approach selects contractors based on performance metrics rather than price alone, aiming to identify the most qualified contractor. Key advantages of BV include minimizing risk and nonperformance by focusing on contractor expertise. Disadvantages of the traditional approach include poor outcomes from contractors focusing solely on lowering price.
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Dynamic Load on Buildings الأحمال الديناميكية على المبانى _ECP-201_ Ch.4 _Lec...
Dynamic Load on Buildings الأحمال الديناميكية على المبانى _ECP-201_ Ch.4 _Lec...
Creep Load of concrete_ECP-201_ Ch.4 _Lecture 9.pdf
Creep Load of concrete_ECP-201_ Ch.4 _Lecture 9.pdf
Creep of Concrete زحف الخرسانة ECP-201_ Ch.4 _Lecture 8.pdf
Creep of Concrete زحف الخرسانة ECP-201_ Ch.4 _Lecture 8.pdf
ECP-201_ Ch.4 Shrinkage Load for Concrete in ECP_Lecture 7.pdf
ECP-201_ Ch.4 Shrinkage Load for Concrete in ECP_Lecture 7.pdf
ECP-201_ Ch.4 Shrinkage Types of Concrete_Lecture 6.pdf
ECP-201_ Ch.4 Shrinkage Types of Concrete_Lecture 6.pdf
ECP-201_ Ch.4 Horizontal Loads on Parapet _Lecture 3.pdf
ECP-201_ Ch.4 Horizontal Loads on Parapet _Lecture 3.pdf
ECP-201_ Ch.4 Live Load on Roofs and Examples _Lecture 2.pdf
ECP-201_ Ch.4 Live Load on Roofs and Examples _Lecture 2.pdf
Dead Load -Examples_ شرح الكود المصرى للأحمال ECP-201_ Ch.3 _Lecture 2.pdf
Dead Load -Examples_ شرح الكود المصرى للأحمال ECP-201_ Ch.3 _Lecture 2.pdf
ECP-201_ Ch.2 Load combinations (ASD & LRFD )_Lecture 2B_Example.pdf
ECP-201_ Ch.2 Load combinations (ASD & LRFD )_Lecture 2B_Example.pdf
ECP-201_ Ch.2 Load combinations (ASD & LRFD )_Lecture 2.pdf
ECP-201_ Ch.2 Load combinations (ASD & LRFD )_Lecture 2.pdf
ECP-201_ Ch.2 Definitions of Design Loads _Lecture 1.pdf
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- 1. ECP-201 Egyptian Code for Loads Prepared By Eng: Mohamed Ismail Kotb Email: m.ismailkotb@gmial.com Tel: 01121549164 Eng. Mohamed Ismail Kotb
- 2. Eng. Mohamed Ismail Kotb
- 3. Chapter(2) Outlines Definitions of Loads Load Combinations Concepts Load Combinations (ASD & LRFD) LRFD Method Resistance Concepts in LRFD Reliability and LRFD Specification Eng. Mohamed Ismail Kotb
- 4. Chapter(2) LRFD Method General Equation for LRFD Method All the computation for factored resistance and factored load shall be in accordance with the following equation. ø: resistance factor ∅ 𝑹𝒏 ≥ ∝𝒊 𝑸𝒊 Qi: Load effect Rn: Nominal resistance α: Load factors Pu: Factored Load Increase in Load effect ≥ 1 Pu=1.2 PDL +1.6 PLL Pu PD PD: Factored Design Strength Reduction in strength <1 PD= ø Pn =0.9 Pn Eng. Mohamed Ismail Kotb
- 5. Chapter (2) Resistance Concepts Eng. Mohamed Ismail Kotb
- 6. Chapter (2) Resistance Concepts Eng. Mohamed Ismail Kotb
- 7. Resistance Concepts Q and R are assumed statistically independent random variables R is sometimes < Q ln 𝑅 𝑄 < 0 To differentiate between R < Q & R >Q Use ln 𝑅 𝑄 ∅ = ( 𝑹𝒎 𝑹𝒏 )𝒆(−𝟎.𝟓𝟓𝜷𝑽𝑹) Where: Rm mean resistance Rn nominal resistance VR Coefficient of variation of the resistance LRFD target is to satisfy the following condition Factored Resistance ≥ Factored Loads Ф Pn ≥ Pu Eng. Mohamed Ismail Kotb
- 8. Resistance Concepts Reliability, is referred to the estimated percentage of times that the resistance of a structure will equal or exceed the maximum loading combination applied to the structure during its estimated life (say 50 years) Usually steel structures are designed to be 99.7% reliable, then only a probability of 0.3% the strength will be lower than the applied loads, but it doesn’t mean failure !!! The typical distribution of the Resistance (R) of a member and the applied loads (Q) are varied and as shown to be normal distribution Eng. Mohamed Ismail Kotb
- 9. Resistance Concepts β : reliability Index = number of standard deviations from the mean Where; Rm is the mean value for resistance Qm is the mean value for Load VR is the coefficients of variation for resistance (𝑉𝑅 = 𝜎𝑅 𝑅𝑚 ) VQ is the coefficients of variation for Load (𝑉𝑄 = 𝜎𝑄 𝑄𝑚 ) Eng. Mohamed Ismail Kotb
- 10. Resistance Concepts The recommended common load factors, as developed for the ANSI load code, were based o the load statistics given in Table 1, A sampling of the data for hot-rolled steel structural members is given in Tables 2, 3, and 4. Eng. Mohamed Ismail Kotb
- 11. Resistance Concepts A sampling of the data for hot-rolled steel structural members is given in Tables 2, 3, and 4. Eng. Mohamed Ismail Kotb
- 12. Resistance Concepts Where Ф-1 is the inverse standard normal distribution function. Table 1 show the probability of failure corresponding to different reliability indices. Eng. Mohamed Ismail Kotb
- 13. Resistance Concepts β : reliability Index = number of standard deviations from the mean β = 1.75 for member subjected to gravity loads and earthquake loads β = 2.50 for member subjected to gravity loads and wind loads β = 3.00 for members subjected to gravity loads β = 4.50 for connections (bolts and weld) When (β is larger, the probability of exceeding the limit state is smaller, i.e., the "reliability" is increased; the converse is true when β decreases Therefore the resistance factors (Ф) for different members and load factors for different load combinations are adjusted accordingly to be as mentioned before. Eng. Mohamed Ismail Kotb
- 14. Resistance Concepts Example(2): Obtain ø by using reliability index=2 For IPE300 (Zx=628 cm3) is tested in the lab using 20 samples for the moment resistance the resistance are shown in the following table: Solution:- Rm=σ Τ 𝑅 𝑛 = 16.5𝑚. 𝑡 Rn= fy Zx=2.4 x 628/100 = 15.07m.t Rm/Rn=16.5/15.07=1.0977 𝜎 = (𝑅 − 𝑅𝑚)2 𝑛 ` = 2.6553 𝑚. 𝑡 𝑉𝑅 = 𝜎 𝑅𝑚 = 0.160494 ∅ = ( 𝑹𝒎 𝑹𝒏 )𝒆(−𝟎.𝟓𝟓𝜷𝑽𝑹) =0.92 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 M m.t 15.2 18.3 17.2 18 17.9 13.8 16.2 17.2 21 9 16.7 17.9 18.1 16.5 13.7 19.7 19.2 15.1 13.6 16.7 ø β Eng. Mohamed Ismail Kotb
- 15. REFERENCES 1- Egyptian code for loads 2012 (ECP-201) 2- Egyptian code for RC 2020 (ECP-203) 3- Egyptian code for STEEL ASD 2007 (ECP-205) 4- Egyptian code for STEEL LRFD 2007 (ECP-205) 5- STEEL DESIGN METHOD LECTURES BY PROF. SHEHAB MOURAD 6-Load and Resistance Factor Design Research by THEODORE V. GALAMBOS Eng. Mohamed Ismail Kotb
- 16. Eng. Mohamed Ismail Kotb