This document discusses the design of substructure elements for bridges. It describes various components of the substructure including abutments, piers, piles, and springs. It outlines different types of abutments, piers, and piles such as gravity piers, U-piers, cantilever abutments, spill piers, and defines active and passive earth pressures. Maintenance and rehabilitation of substructure elements is also mentioned.
The basic components and parts of a bridge include the superstructure, bearings, and substructure. The superstructure includes the deck and girders that support the roadway. Bearings allow movement between the superstructure and substructure and transmit loads. The substructure includes piers, abutments, and foundations that support the superstructure and transfer loads to the ground. Piers are vertical structures that support spans while abutments retain earth at the ends of the bridge and transfer loads into the ground. Foundations distribute bridge loads evenly into the soil or rock.
This document provides an overview of the course MAB1053 Bridge Engineering. The course objectives are to teach students about concrete bridge types, bridge loading calculations, and basic bridge design and analysis using finite element software. The content is delivered over 15 weeks and covers topics such as bridge substructures, loading, deck analysis methods, and prestressed concrete bridge design. The course aims to provide students with the fundamental knowledge needed for basic bridge design and analysis.
This document provides an overview of the course MAB1053 Bridge Engineering. The course objectives are to teach students about concrete bridge types, bridge loading calculations, and basic bridge design and analysis using finite element software. The content is delivered over 15 weeks and covers topics such as bridge substructures, loading, deck analysis methods, and prestressed concrete bridge design. The course aims to provide students with the fundamental knowledge needed for basic bridge design and analysis.
This document provides information about a bridge engineering course taught by Prof. Dr. Azlan Abdul Rahman. The 12-week course covers various topics related to bridge design and analysis including bridge types, structural forms, design process, load calculations, finite element analysis using LUSAS software, prestressed concrete bridge design, and bridge substructure elements. The course objectives are to teach students to identify bridge types and design processes, perform bridge load calculations, use LUSAS for bridge analysis, and design prestressed concrete bridge beams, abutments and piers.
This document provides an overview of the course MAB1053 Bridge Engineering Introduction. The key points are:
1. The course objectives are to identify types of bridges, perform basic calculations for bridge loading and analysis, and perform basic design of prestressed concrete bridge elements.
2. The course content includes introduction to bridges, bridge substructure elements, bridge loading, bridge superstructure analysis methods, and prestressed concrete bridge design.
3. The course schedule outlines the topics to be covered each week by the lecturers, including bridge types, loading, substructure, superstructure analysis, and prestressed concrete design.
Construction Of A Viaduct/Bridge: An OverviewSourav Goswami
This document is a submission by Sourav Goswami describing his 7-day internship project focused on the construction of a metro rail bridge. The project was conducted under Rail Vikas Nigam Limited and Gammon India Limited. Sourav thanks the project guides and staff who provided guidance and knowledge about bridge construction activities including piling, pile caps, piers, bearings and segments.
Influence line diagram for model arch bridgekunalsahu9883
The Lupu Bridge in Shanghai, China is a steel box section tied arch bridge with a main span of 550m, making it the largest arch bridge in the world when it was completed. A tied arch bridge design was used because the ground conditions on either side of the river were unsuitable for the large forces from a normal arch bridge. The bridge was analyzed using structural analysis software to determine member forces and deformations under load. The bridge is an impressive engineering feat that helped advance Chinese bridge engineering.
The basic components and parts of a bridge include the superstructure, bearings, and substructure. The superstructure includes the deck and girders that support the roadway. Bearings allow movement between the superstructure and substructure and transmit loads. The substructure includes piers, abutments, and foundations that support the superstructure and transfer loads to the ground. Piers are vertical structures that support spans while abutments retain earth at the ends of the bridge and transfer loads into the ground. Foundations distribute bridge loads evenly into the soil or rock.
This document provides an overview of the course MAB1053 Bridge Engineering. The course objectives are to teach students about concrete bridge types, bridge loading calculations, and basic bridge design and analysis using finite element software. The content is delivered over 15 weeks and covers topics such as bridge substructures, loading, deck analysis methods, and prestressed concrete bridge design. The course aims to provide students with the fundamental knowledge needed for basic bridge design and analysis.
This document provides an overview of the course MAB1053 Bridge Engineering. The course objectives are to teach students about concrete bridge types, bridge loading calculations, and basic bridge design and analysis using finite element software. The content is delivered over 15 weeks and covers topics such as bridge substructures, loading, deck analysis methods, and prestressed concrete bridge design. The course aims to provide students with the fundamental knowledge needed for basic bridge design and analysis.
This document provides information about a bridge engineering course taught by Prof. Dr. Azlan Abdul Rahman. The 12-week course covers various topics related to bridge design and analysis including bridge types, structural forms, design process, load calculations, finite element analysis using LUSAS software, prestressed concrete bridge design, and bridge substructure elements. The course objectives are to teach students to identify bridge types and design processes, perform bridge load calculations, use LUSAS for bridge analysis, and design prestressed concrete bridge beams, abutments and piers.
This document provides an overview of the course MAB1053 Bridge Engineering Introduction. The key points are:
1. The course objectives are to identify types of bridges, perform basic calculations for bridge loading and analysis, and perform basic design of prestressed concrete bridge elements.
2. The course content includes introduction to bridges, bridge substructure elements, bridge loading, bridge superstructure analysis methods, and prestressed concrete bridge design.
3. The course schedule outlines the topics to be covered each week by the lecturers, including bridge types, loading, substructure, superstructure analysis, and prestressed concrete design.
Construction Of A Viaduct/Bridge: An OverviewSourav Goswami
This document is a submission by Sourav Goswami describing his 7-day internship project focused on the construction of a metro rail bridge. The project was conducted under Rail Vikas Nigam Limited and Gammon India Limited. Sourav thanks the project guides and staff who provided guidance and knowledge about bridge construction activities including piling, pile caps, piers, bearings and segments.
Influence line diagram for model arch bridgekunalsahu9883
The Lupu Bridge in Shanghai, China is a steel box section tied arch bridge with a main span of 550m, making it the largest arch bridge in the world when it was completed. A tied arch bridge design was used because the ground conditions on either side of the river were unsuitable for the large forces from a normal arch bridge. The bridge was analyzed using structural analysis software to determine member forces and deformations under load. The bridge is an impressive engineering feat that helped advance Chinese bridge engineering.
A gravity dam is a solid structure, made of concrete or masonry, constructed across a river to create a reservoir on its
upstream. The section of the gravity dam is approximately triangular in shape, with its apex at its top and maximum width at bottom.
The section is so proportioned that it resists the various forces acting on it by its own weight. Most of the gravity dams are solid, so that
no bending stress is introduced at any point and hence, they are sometimes known as solid gravity dams to distinguish them from hollow
gravity dams in those hollow spaces are kept to reduce the weight. Early gravity dams were built of masonry, but now-a-days with
improved methods of construction, quality control and curing, concrete is most commonly used for the construction of modern gravity
dams.
Footings are structural members that support columns and walls and transmit their loads to the soil. Different types of footings include wall footings, isolated/single footings, combined footings, cantilever/strap footings, continuous footings, rafted/mat foundations, and pile caps. Footings must be designed to safely carry and transmit loads to the soil while meeting code requirements regarding bearing capacity, settlement, reinforcement, and shear strength. A proper footing design involves determining loads, allowable soil pressure, reinforcement requirements, and assessing settlement.
The Rion-Antirion Bridge in Greece connects the Peloponnese peninsula to the western mainland via a 2252m long cable-stayed main bridge that spans the Corinth Strait. It was designed to withstand the severe seismic activity and possible fault movements in the area. The main bridge uses four pylons supported by large reinforced soil foundations to distribute seismic forces to the deep weak soil layers. Dynamic analysis showed that during major earthquakes, the reinforced soil and pylon foundations would yield and slide as designed to dissipate energy without compromising the structure. The continuous suspended deck acts as a flexible element that can accommodate displacements without damage. The bridge's innovative design allows all components to work together to resist earthquake forces through
A foundation is the lowest part of the building structure. It is the engineering field of study devoted to the design of those structures which support other structures, most typically buildings, bridges or transportation infrastructure. It is at the periphery of Civil, Structural and Geo-technical Engineering disciplines and has distinct focus on soil-structure interaction.
This document provides an overview of a book containing 200 questions and answers on practical civil engineering works. The book is intended to arouse interest in graduate engineers, assistant engineers, and engineers regarding technical aspects of civil engineering projects. It covers topics like bridge works, concrete structures, drainage works, earthworks, piers/marine structures, roadworks, pumping stations, reclamation works, water retaining structures, pipe jacking/microtunneling, piles/foundations, and general civil engineering questions. The author's goal is to explain the reasoning behind common engineering practices to help readers better understand the underlying principles.
200 Questions and Answers on Practical Civil Engineering Works [2]_2008.pdfMasi Uddin
This document contains a preface and 12 chapters related to practical questions and answers on various aspects of civil engineering works. The preface states that the book aims to provide graduate engineers and practicing engineers with technical knowledge on current civil engineering practices. It contains over 200 questions and answers selected from the author's monthly journal column on civil engineering topics. The chapters cover various topics related to bridge works, concrete structures, drainage works, earthworks, marine structures, roadworks, pumping stations, reclamation works, water retaining structures, pile foundations, and general civil engineering questions.
IRJET- Integral Abutment Bridge- A Review and Comparison of the Integral Brid...IRJET Journal
This document provides an overview and comparison of integral abutment bridges and conventional bridges. It defines integral abutment bridges as jointless and bearingless structures where the superstructure is monolithically connected to the abutments, eliminating joints and bearings. This allows stresses from thermal expansion to be transferred to the substructure through a flexible connection. The document discusses the different types of integral abutment bridges based on the abutment detail, including frame abutments, bank pad abutments, flexible support abutments, and semi-integral end screen abutments. It then reviews several research papers on topics like thermally induced soil-structure interaction in integral bridges. In conclusion, integral abutment bridges
The document discusses the author's invitation for civil engineers to submit questions to be included in his upcoming book "200 Questions and Answers on Practical Civil Engineering Works Part II". It provides an overview of the contents and chapters that will be covered in the book, including bridge works, concrete structures, drainage works, and others. The preface expresses the aim of arousing interest in technical aspects of civil engineering works and serving as a useful reference for practicing engineers.
This document discusses reinforced concrete (RC) girder bridges. It begins by defining girder bridges as the simplest bridge type, consisting of horizontal beams supported at each end. RC girder bridges are comprised of deck slabs that vehicles drive on, supported by main girders. There are three main types of girder bridges: box girders, which can handle twisting forces and are suitable for longer spans; concrete girders made of pre-stressed concrete; and I-beam girders made of steel. RC girder bridges must be designed to support dead loads from the structure itself, live loads from traffic, and dynamic loads from wind and weather.
The document discusses precast concrete construction. It defines precast concrete as concrete that is cast in reusable molds and cured in a controlled environment off-site before being transported to the construction site. Benefits of precast construction include better quality control during curing, less weather dependence, faster construction time, and lower costs. Examples of precast concrete applications include buildings, bridges, retaining walls, and transportation products. The document also discusses design considerations, formwork, casting, handling, transportation and erection of precast concrete elements.
The document discusses the design and construction challenges of the Deh Cho Bridge in the Northwest Territories of Canada. Some key points:
- The bridge crosses the Mackenzie River and connects Yellowknife to Highway 1, replacing a ferry. Its remote northern location and extreme winter conditions of -40°C posed challenges.
- An innovative extradosed bridge design was used with a 1045m continuous superstructure and expansion joints only at the abutments.
- Construction methods like incremental launching and extensive prefabrication were employed to minimize field work during the short construction season.
- Rigorous shop trial assembly and quality control processes were required given the remote site and need to minimize repairs.
This document discusses the analysis and design of stepped cantilever retaining walls. It begins with an introduction to different types of retaining walls, including cantilever and counterfort walls. Cantilever walls are economical up to 6 meters in height, but require larger sections at greater heights due to increased bending moments. Counterfort walls require a large base area and steel reinforcement. As an alternative, stepped cantilever walls are proposed, with short reinforced concrete steps along the stem face. This aims to reduce bending moments and stresses in the stem. The objectives of the study are to reduce retaining wall face stresses using steps, determine optimal step locations, design step cross-sections, analyze wall stability with steps, and compare costs of alternatives
This document discusses various construction techniques for super structures including launching girders, bridge decks, offshore platforms, space decks, domes, and high-rise structures. It describes methods for sliding girders into place, launching girders using temporary supports, erecting concrete girders with cranes, and cantilever construction. It also provides details on constructing different types of bridge decks, space decks using tubular sections, ribbed and schwedler domes, and transmission towers.
The document provides an overview of the history and engineering concepts related to bridge development and design. It discusses the basic types of bridges including beam, arch, suspension and cable-stayed bridges. It also covers concepts such as forces, loads, materials and shapes that affect bridge structure, and tips for building bridges including the importance of connections and structural stability.
This document discusses the design of bridges. It outlines several key factors engineers must consider when designing bridges, such as span length, expected loads, environmental conditions, budgets, and timelines. Bridges must be designed to withstand both static and dynamic loads by minimizing bending and balancing tensile and compressive forces. Common bridge types include beam, truss, suspension, and arch bridges, each of which uses structural elements and shapes like triangles, cables, arches, and piers to safely transfer loads to the ground.
Bridges: Classification of bridges – with respect to construction
materials, structural behavior of super structure, span, sub structure,
purpose. Temporary and movable bridges. Factors affecting site
selection. Various loads/stresses acting on bridges. Bridge hydrology –
design discharge, water way, afflux, scour depth, economical span.
Bridge components – foundation, piers, abutments, wing wall, approach,
bearings, floor, girders, cables, suspenders. Methods of erection of
different types of bridges. River training works and maintenance of
bridges. Testing and strengthening of bridges. Bridge architect.
This document discusses considerations for the design of tower foundations. It notes that tower foundations typically make up 20-40% of total tower costs. The design process is iterative and aims to ensure stability against overturning, sliding, uplift and tilting due to soil pressures. It outlines the two-part design process of stability analysis and strength design to proportion foundation components to loads. Uplift resistance is a key factor in footing size selection. Methods to check for sliding, overturning and uprooting of foundations are presented.
This document provides an analysis report for a project to construct a 1:5 scale model of a temporary bus shelter with a maximum height of 600mm and base area of 400mm x 800mm. It includes sections on the design concept, massing, design development, drawings, material analysis, construction details, structural analysis, and conclusions. The goal was to demonstrate an understanding of skeletal construction and how structures react under loading. The design combined a triangular prism roof with a cuboid base to provide shelter for 5-6 users with an emphasis on practical construction and user needs.
This document provides an analysis report for a project to construct a 1:5 scale model of a temporary bus shelter with a maximum height of 600mm and base area of 400mm x 800mm. It includes sections on the design concept, massing, design development, drawings, material analysis, construction details, structural analysis, and conclusions. The goal was to demonstrate an understanding of skeletal construction and how structures react under loading. The design combined a triangular prism roof with a cuboid base to provide shelter for 5-6 users with an emphasis on practical construction and user needs.
This document provides an analysis report for a project to construct a 1:5 scale model of a temporary bus shelter with a maximum height of 600mm and base area of 400mm x 800mm. It includes sections on the design concept, massing, design development, drawings, material analysis, construction details, structural analysis, and conclusions. The goal was to demonstrate an understanding of skeletal construction and how structures react under loading. The design combined a triangular prism roof with a cuboid base to provide shelter for 5-6 users with an emphasis on practical construction and user needs.
A gravity dam is a solid structure, made of concrete or masonry, constructed across a river to create a reservoir on its
upstream. The section of the gravity dam is approximately triangular in shape, with its apex at its top and maximum width at bottom.
The section is so proportioned that it resists the various forces acting on it by its own weight. Most of the gravity dams are solid, so that
no bending stress is introduced at any point and hence, they are sometimes known as solid gravity dams to distinguish them from hollow
gravity dams in those hollow spaces are kept to reduce the weight. Early gravity dams were built of masonry, but now-a-days with
improved methods of construction, quality control and curing, concrete is most commonly used for the construction of modern gravity
dams.
Footings are structural members that support columns and walls and transmit their loads to the soil. Different types of footings include wall footings, isolated/single footings, combined footings, cantilever/strap footings, continuous footings, rafted/mat foundations, and pile caps. Footings must be designed to safely carry and transmit loads to the soil while meeting code requirements regarding bearing capacity, settlement, reinforcement, and shear strength. A proper footing design involves determining loads, allowable soil pressure, reinforcement requirements, and assessing settlement.
The Rion-Antirion Bridge in Greece connects the Peloponnese peninsula to the western mainland via a 2252m long cable-stayed main bridge that spans the Corinth Strait. It was designed to withstand the severe seismic activity and possible fault movements in the area. The main bridge uses four pylons supported by large reinforced soil foundations to distribute seismic forces to the deep weak soil layers. Dynamic analysis showed that during major earthquakes, the reinforced soil and pylon foundations would yield and slide as designed to dissipate energy without compromising the structure. The continuous suspended deck acts as a flexible element that can accommodate displacements without damage. The bridge's innovative design allows all components to work together to resist earthquake forces through
A foundation is the lowest part of the building structure. It is the engineering field of study devoted to the design of those structures which support other structures, most typically buildings, bridges or transportation infrastructure. It is at the periphery of Civil, Structural and Geo-technical Engineering disciplines and has distinct focus on soil-structure interaction.
This document provides an overview of a book containing 200 questions and answers on practical civil engineering works. The book is intended to arouse interest in graduate engineers, assistant engineers, and engineers regarding technical aspects of civil engineering projects. It covers topics like bridge works, concrete structures, drainage works, earthworks, piers/marine structures, roadworks, pumping stations, reclamation works, water retaining structures, pipe jacking/microtunneling, piles/foundations, and general civil engineering questions. The author's goal is to explain the reasoning behind common engineering practices to help readers better understand the underlying principles.
200 Questions and Answers on Practical Civil Engineering Works [2]_2008.pdfMasi Uddin
This document contains a preface and 12 chapters related to practical questions and answers on various aspects of civil engineering works. The preface states that the book aims to provide graduate engineers and practicing engineers with technical knowledge on current civil engineering practices. It contains over 200 questions and answers selected from the author's monthly journal column on civil engineering topics. The chapters cover various topics related to bridge works, concrete structures, drainage works, earthworks, marine structures, roadworks, pumping stations, reclamation works, water retaining structures, pile foundations, and general civil engineering questions.
IRJET- Integral Abutment Bridge- A Review and Comparison of the Integral Brid...IRJET Journal
This document provides an overview and comparison of integral abutment bridges and conventional bridges. It defines integral abutment bridges as jointless and bearingless structures where the superstructure is monolithically connected to the abutments, eliminating joints and bearings. This allows stresses from thermal expansion to be transferred to the substructure through a flexible connection. The document discusses the different types of integral abutment bridges based on the abutment detail, including frame abutments, bank pad abutments, flexible support abutments, and semi-integral end screen abutments. It then reviews several research papers on topics like thermally induced soil-structure interaction in integral bridges. In conclusion, integral abutment bridges
The document discusses the author's invitation for civil engineers to submit questions to be included in his upcoming book "200 Questions and Answers on Practical Civil Engineering Works Part II". It provides an overview of the contents and chapters that will be covered in the book, including bridge works, concrete structures, drainage works, and others. The preface expresses the aim of arousing interest in technical aspects of civil engineering works and serving as a useful reference for practicing engineers.
This document discusses reinforced concrete (RC) girder bridges. It begins by defining girder bridges as the simplest bridge type, consisting of horizontal beams supported at each end. RC girder bridges are comprised of deck slabs that vehicles drive on, supported by main girders. There are three main types of girder bridges: box girders, which can handle twisting forces and are suitable for longer spans; concrete girders made of pre-stressed concrete; and I-beam girders made of steel. RC girder bridges must be designed to support dead loads from the structure itself, live loads from traffic, and dynamic loads from wind and weather.
The document discusses precast concrete construction. It defines precast concrete as concrete that is cast in reusable molds and cured in a controlled environment off-site before being transported to the construction site. Benefits of precast construction include better quality control during curing, less weather dependence, faster construction time, and lower costs. Examples of precast concrete applications include buildings, bridges, retaining walls, and transportation products. The document also discusses design considerations, formwork, casting, handling, transportation and erection of precast concrete elements.
The document discusses the design and construction challenges of the Deh Cho Bridge in the Northwest Territories of Canada. Some key points:
- The bridge crosses the Mackenzie River and connects Yellowknife to Highway 1, replacing a ferry. Its remote northern location and extreme winter conditions of -40°C posed challenges.
- An innovative extradosed bridge design was used with a 1045m continuous superstructure and expansion joints only at the abutments.
- Construction methods like incremental launching and extensive prefabrication were employed to minimize field work during the short construction season.
- Rigorous shop trial assembly and quality control processes were required given the remote site and need to minimize repairs.
This document discusses the analysis and design of stepped cantilever retaining walls. It begins with an introduction to different types of retaining walls, including cantilever and counterfort walls. Cantilever walls are economical up to 6 meters in height, but require larger sections at greater heights due to increased bending moments. Counterfort walls require a large base area and steel reinforcement. As an alternative, stepped cantilever walls are proposed, with short reinforced concrete steps along the stem face. This aims to reduce bending moments and stresses in the stem. The objectives of the study are to reduce retaining wall face stresses using steps, determine optimal step locations, design step cross-sections, analyze wall stability with steps, and compare costs of alternatives
This document discusses various construction techniques for super structures including launching girders, bridge decks, offshore platforms, space decks, domes, and high-rise structures. It describes methods for sliding girders into place, launching girders using temporary supports, erecting concrete girders with cranes, and cantilever construction. It also provides details on constructing different types of bridge decks, space decks using tubular sections, ribbed and schwedler domes, and transmission towers.
The document provides an overview of the history and engineering concepts related to bridge development and design. It discusses the basic types of bridges including beam, arch, suspension and cable-stayed bridges. It also covers concepts such as forces, loads, materials and shapes that affect bridge structure, and tips for building bridges including the importance of connections and structural stability.
This document discusses the design of bridges. It outlines several key factors engineers must consider when designing bridges, such as span length, expected loads, environmental conditions, budgets, and timelines. Bridges must be designed to withstand both static and dynamic loads by minimizing bending and balancing tensile and compressive forces. Common bridge types include beam, truss, suspension, and arch bridges, each of which uses structural elements and shapes like triangles, cables, arches, and piers to safely transfer loads to the ground.
Bridges: Classification of bridges – with respect to construction
materials, structural behavior of super structure, span, sub structure,
purpose. Temporary and movable bridges. Factors affecting site
selection. Various loads/stresses acting on bridges. Bridge hydrology –
design discharge, water way, afflux, scour depth, economical span.
Bridge components – foundation, piers, abutments, wing wall, approach,
bearings, floor, girders, cables, suspenders. Methods of erection of
different types of bridges. River training works and maintenance of
bridges. Testing and strengthening of bridges. Bridge architect.
This document discusses considerations for the design of tower foundations. It notes that tower foundations typically make up 20-40% of total tower costs. The design process is iterative and aims to ensure stability against overturning, sliding, uplift and tilting due to soil pressures. It outlines the two-part design process of stability analysis and strength design to proportion foundation components to loads. Uplift resistance is a key factor in footing size selection. Methods to check for sliding, overturning and uprooting of foundations are presented.
This document provides an analysis report for a project to construct a 1:5 scale model of a temporary bus shelter with a maximum height of 600mm and base area of 400mm x 800mm. It includes sections on the design concept, massing, design development, drawings, material analysis, construction details, structural analysis, and conclusions. The goal was to demonstrate an understanding of skeletal construction and how structures react under loading. The design combined a triangular prism roof with a cuboid base to provide shelter for 5-6 users with an emphasis on practical construction and user needs.
This document provides an analysis report for a project to construct a 1:5 scale model of a temporary bus shelter with a maximum height of 600mm and base area of 400mm x 800mm. It includes sections on the design concept, massing, design development, drawings, material analysis, construction details, structural analysis, and conclusions. The goal was to demonstrate an understanding of skeletal construction and how structures react under loading. The design combined a triangular prism roof with a cuboid base to provide shelter for 5-6 users with an emphasis on practical construction and user needs.
This document provides an analysis report for a project to construct a 1:5 scale model of a temporary bus shelter with a maximum height of 600mm and base area of 400mm x 800mm. It includes sections on the design concept, massing, design development, drawings, material analysis, construction details, structural analysis, and conclusions. The goal was to demonstrate an understanding of skeletal construction and how structures react under loading. The design combined a triangular prism roof with a cuboid base to provide shelter for 5-6 users with an emphasis on practical construction and user needs.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, Serbia
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
1. NAME: ST. RIOS RAMOS JUAN SEBASTIAN
DATE: 04/17/2022
DESIGN OF SUBSTRUCTURE ELEMENTS
The substructure of a vehicular bridge is made up of several elements which are designed to
support the upper part that is the superstructure. The following summary talks about the main
components of the substructure, which are the abutments, the supports and the piers. In
addition to this, some of the maintenance and rehabilitation problems that affect the bridge
will be specified.
Of all the resources that make up a highway bridge, the replacement resources display several
of the most striking properties. Even a row of assembled land-based modular units, winding
up an abutment side slope, could be quite aesthetically pleasing.
It can be said that the design of the elements of the superstructure changes a lot according to
the geographical location and the preferences of the transport department, the same could be
true for the elements of the substructure. In this part, we will cover the basic principles behind
the design, rehabilitation, and maintenance of substructure elements.
2. Pillars:
The abutments are one of the very important elements of the structure, since they are located
at the end of a bridge and provide basic functions such as: support at the end of the first turn
or the last section, retaining the earth below and adjacent to the access road and supporting
part of the access roadway or access slab.
The abutment joint chosen for a given bridge depends on the geometry of the site, the size of
the composition, and the preferences of the owner. Simplifying, the bridge abutment can be
considered as a barricade equipped with a bridge seat.
Type of pillars:
With the barrier difference, most retaining wall systems, as long as they are equipped with a
bridge deck and made to withstand the severe loading conditions present in a bridge
construction highway, have the ability to be used as reinforcement. Another difference
between a typical retaining wall system and a pier is that this system is primarily equipped
with an adjacent flared wall.
Fin walls, like the ones shown in Figure 4.3, are awarded to help a pier confine the land
behind a pier. Once a subsequent wall, lateral wall, and footing make up a single structural
system, the study becomes quite difficult. In such a case, the designer has 2 possibilities
3. available, either to rely on a set of conservative assumptions and approximations or to use
PC-assisted resolutions, such as finite resource investigation.
A gravity pillar: it resists the horizontal pressure of the ground by its own dead weight.
Gravity piers are generally constructed of concrete; however, masonry is also sometimes
used. As explained above, a gravity shaker consists of a back wall and a side wall, tested
against the base.
U-Pillar: Since the side walls of a gravity pier are set at right angles to the next wall, the pier
is known as a U-Pier. The name "U-Pier" comes from the way the pillar once seen in plan.
Side walls are typically molded monolithically with the next wall of the pier and cantilevered
vertically from the footing. Several side walls also have the possibility of having a horizontal
cantilevered section.
Cantilever Abutment: A cantilever abutment is essentially the same as a cantilever retaining
wall (i.e., a wall or log that extends upward from the base), except that the cantilever
abutment is designed to carry higher vertical loads and is equipped with the bridge platform.
When a pillar has a large retaining wall or back wall connected to the adjacent side walls, the
structure is known as a U-pillar. The name is derived from the “U” shape of the pillar as seen
on the plans. The built abutment still has the formwork intact. Formwork is a complete system
4. of formwork, support, and related components that work together as a formwork for a
concrete element until the piece has sufficient strength to support itself, sometimes the
formwork. Prefabricated formwork is reusable, so this type of formwork is called formwork.
Full-height abutment: A full-elevation abutment is an abutment cantilever that extends from
the grade of the underpass (either roadway or body of water) to the grade of the overpass of
the preeminent roadway.
short pillar. Abutment is a relatively short abutment placed on an embankment or sloped
roof. Unless there is sufficient rock on the site, the piers are usually supported by pilings that
extend over the embankment.
Buttress/off-buttress abutment – Similar to a buttress retaining barrier, it uses a shaft and
footing that is braced with thin vertical slabs, known as buttresses, which remain spaced at
intervals.
Spill Pillar: Spill pillar uses 2 or more vertical columns or buttresses that have a cap beam
above them. The preeminent beam is used in parallel to support the bridge seat on which the
superstructure rests. The fill extends from the bottom of the head beam and is allowed to pass
through the open spaces in the middle of the vertical columns so that the abutment retains
only a section of the embankment.
A counterforti retaining barrier, such as the one illustrated in Figure 4.5, is primarily not
economically likely unless the elevation from the bottom of the footing to the crest of the
stem is greater than 20 to 25 feet (6.1 to 7.6m). The spacing between the buttresses is
established through trial and error with one obvious limiting constraint being price. Mainly,
a spot about one-third to one-half the elevation is more economical.
5. In the case of piers, the structure must be designed to withstand both the earth pressure and
the loads acting from the superstructure. Many factors influence the design process, including
the type of existing soil, drainage, and seismic loads. As for the second part, more details will
be presented in section 4.1.7. However, before discussing the seismic design of a pier, it is
necessary to review the fundamentals of Coulomb Carth 's pressure theory. The seismic
analysis used is an extension of the fundamentals described in this section. Figure 4.6
illustrates the basic forces acting on the column (seismic forces are also included in the
diagram and will be discussed later). The main force acting on an agitator is the applied
ground pressure, denoted by the variable P in Figure 4.6. The triangular arc defined by the
slope from the heel/toe to the top of the embankment is called the fault wedge. Coulomb's
theory is based on the following assumptions:
The soil is isotropic and homogeneous.
The soil has internal friction and cohesion.
The rupture surface is a flat surface.
6. The frictional forces are evenly distributed along the flat surface of rupture.
The fault wedge is a rigid body.
One of the main deficiencies with Coulomb's theory of earth pressure is that it assumes an
ideal ground and that the area of separation is determined by a plane. Coulomb himself
recognized that the area of separation was curved, however, he made the decision to
substitute a plane for the curve as an approximation.
For the time in which it takes place and the stage of his career, Coulomb's approach is
remarkably analytical. Active and passive earth pressures represent the maximum and
minimum values that can be used to determine the size of a retaining wall or abutment based
on a trial and error method.
As we will see shortly, seismic analysis uses many of the same methods, with the only
difference being that horizontal and vertical measurements are combined. vertical
acceleration factor to take into account the effect of seismic movement.
7. Active Earth Pressure represents the minimum lateral earth pressure. Most piers are very
rigid and cannot move or rotate freely, so the actual earth pressure is greater than the active
earth pressure. To account for this, ASSHTO recommends using a so-called "test" subfloor.
When the service load design method is used, no load factors or performance factors are
applied. Instead, a minimum factor of safety (FS) is required. Earlier it was mentioned that a
column must be designed to provide security against failure due to overloading or slippage.
With respect to the first, the safety factor against overturning can be defined by the following
expression:
Pile of Something: Piles constantly have a chance to be found in areas that are highly sensitive
to erosion and research. This implies that many piles will be used in spaces that are likely to
be considered hard.
When steel piles (for example, H-shaped steel piles) are used, the damage can be repaired by
adding a part to the damaged parts. This is generally recommended for less severe damage
with up to 50% partial loss in smaller areas and less. Also, damaged steel piles can be
repainted. When steel piles are driven underwater, shoring is often the preferred method of
restoration. If the deteriorated segment of steel pile is located in a dry area or above ground
level, another method of repair is to connect the new section to the existing pile. Just like a
steel object, when exposed to moisture, the steel must have a protective coating to prevent
corrosion.
Springs:
The development of bridge piers parallels the rise of the new highway system. Previously,
the use of bridge pillars was limited to constructions that crossed rivers or railways. the need
for earthen piers to facilitate grade-separated highways increased dramatically.
The springs in Figure 4.7 integrate elastomeric bearings in which the prestressed concrete
superstructure is supported. Such subjectively thin bearings make for a visually smooth
8. transition from dock to superstructure. For most constructions, including steel and timber
bridges, concrete is the material of choice for the substructure elements. wood, they are also
applied for pier constructs (for example, a steel frame pier or wooden ridge support
composition).
Types of springs:
In the sidebar accompanying Figure 1.5, diagrams of several basic types of lighthouses are
presented. Like a wharf, a wharf has a wharf on which the superstructure is tested. In Figure
4.8, this pedestal consists of a hammerhead-shaped pile head, on which the individual
platforms are located. The supports are in turn placed on the bases on which the
superstructure is examined. So we can see that in Figure 4.8 this column is used to support
the superstructure formed by the five major chords.
9. Hammerhead:
Hammerhead docks are primarily found in urban settings as they are attractive and take up
minimal space, providing space for underground traffic. As mentioned above, hammerhead
columns are most attractive when placed in structures with relatively large clearance
requirements (although they have been incorporated with shorter clearances). Personal
transportation services generally maintain standards regarding the use of hammerhead
sharks. Hammerhead abutments are also an interesting solution when the structure is at an
angle, creating tight connections for underground traffic. Unlike sloping column piles (see
below), single column hammers provide a solution for a more open and flowing appearance,
especially in high traffic multi-structure settings.
10. bent column
A bent column pier, as its name suggests, consists of a head beam and supporting columns
in a frame-like composition. Column bent piers represent one of the most famous forms of
piers in use in highway bridges. This fame is an effect of the extensive use of bent piers
throughout the early development of the U.S. interstate system. Like hammerhead piers,
support columns have a choice of circular or rectangular cross-section, although the first is
much more recurrent. The use of bent column columns, such as hammerheads, should be
judicious. However, in dense urban interchanges, the extensive use of bent pillars in columns
can give way to a crowded image that generates a 'concrete jungle' impact.
Comprehensive
an integral pier has a pier cap to which the main members of the superstructure are rigidly
connected. This dock pipe is not at all common and is generally limited to special structures,
particularly where tight vertical space restrictions pose a problem.