Precast Column Footing Connections For Accelerated Bridge Construction In Seismic Zones
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Precast Column Footing Connections For Accelerated Bridge Construction In Seismic Zones
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Author : Zachary Benjamin Haber
language : en
Publisher:
Release Date : 2013
Precast Column Footing Connections For Accelerated Bridge Construction In Seismic Zones written by Zachary Benjamin Haber and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Electronic books categories.
Accelerated bridge construction (ABC) has become increasingly popular in the eyes of state and federal transportation agencies because of its numerous advantages. To effectively execute ABC projects, designers utilize prefabricated structural elements that can be quickly assembled to form functional structural systems. It is advantageous to the bridge designer if these systems emulate the design and behavior of conventional cast-in-place systems. If this can be achieved, typical analysis and design procedures can be used. The difficulty with developing emulative systems is usually encountered in the design and detailing of connections. Substructure connections are particularly critical in seismic zones because they must dissipate energy through significant cyclic nonlinear deformations while maintaining their capacity and the integrity of the structural system. The research presented in this dissertation focused on developing and evaluating earthquake resistant connections for use in accelerated bridge construction. The project was comprised of three main components; testing of five large-scale precast reinforced concrete column models, a series of individual component tests on mechanical reinforcing bar splices, and extensive analytical studies. Column studies included the design and construction of five half-scale bridge column models that were tested under reversed slow cyclic loading. Four new moment connections for precast column-footing joints were developed each utilizing mechanical reinforcing bar splices to create connectivity with reinforcing bars in a cast-in-place footing. Two different mechanical splices were studied: an upset headed coupler and grout-filled sleeve coupler. Along with the splice type, the location of splices within the plastic hinge zone was also a test variable. All column models were designed to emulate conventional cast-in-place construction thus were compared to a conventional cast-in-place test model. Results indicate that the new connections are promising and duplicate the behavior of conventional cast-in-place construction with respect to key response parameters. However, it was discovered that the plastic hinge mechanism can be significantly affected by the presence of splices and result in reduced displacement ductility capacity. In order to better understand the behavior of mechanical splices, a series of uniaxial tests were completed on mechanically-spliced reinforcing bars under different loading configurations: monotonic static tension, dynamic tension, and slow cyclic loading. Results from this portion of the project also aided the development of analytical models for the half- and prototype-scale column models. Results indicated that, regardless of loading configuration, specimens failed by bar rupture without damage to the splice itself. The analytical studies conducted using OpenSEES included development of microscope models for the two mechanical reinforcing bars splices and full analytical models of the five half-scale columns, which were both compared with respective experimental results to validate the modeling procedures and assumptions. Prototype-scale analytical models were also developed to conduct parametric studies investigating the sensitivity of the newly developed ABC connections to changes in design details. In general, the results of this study indicate that the newly develop ABC connections, which utilize mechanically-spliced connections, are suitable for moderate and high seismic regions. However, emulative design approaches are not suitable for all of the connections develop. A set of design recommendations are provided to guide bridge engineers in the analysis and design of these new connections.
Precast Column Footing Connections For Accelerated Bridge Construction In Seismic Zones
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Author : Zachary B. Haber
language : en
Publisher:
Release Date : 2013
Precast Column Footing Connections For Accelerated Bridge Construction In Seismic Zones written by Zachary B. Haber and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Bridges categories.
Application Of Accelerated Bridge Construction Connections In Moderate To High Seismic Regions
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Author :
language : en
Publisher: Transportation Research Board
Release Date : 2011
Application Of Accelerated Bridge Construction Connections In Moderate To High Seismic Regions written by and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Technology & Engineering categories.
TRB’s National Cooperative Highway Research Program (NCHRP) Report 698: Application of Accelerated Bridge Construction Connections in Moderate-to-High Seismic Regions evaluates the performance of connection details for bridge members in accelerated bridge construction in medium-to-high seismic regions and offers suggestions for further research.
Available Accelerated Bridge Construction Options For Short Span Bridges
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Author : Armin Mehrabi
language : en
Publisher: Cambridge Scholars Publishing
Release Date : 2024-03-18
Available Accelerated Bridge Construction Options For Short Span Bridges written by Armin Mehrabi and has been published by Cambridge Scholars Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-18 with Technology & Engineering categories.
By employing prefabricated bridge elements and systems, Accelerated Bridge Construction reduces on-site construction time and traffic disruptions, and enhances long-term performance. ABC is particularly advantageous for short-span bridges that are well-suited to standardized prefabrication. In such cases, the entire superstructure and substructure can often be constructed using prefabricated deck elements, modular decks, or systems that span the full bridge width. The construction methods can range from traditional crane installations to Self-Propelled Modular Transport units or slide-in techniques for moving the entire superstructures. This book introduces the concept of ABC and examines its application in the context of short-span bridge construction. It categorizes and details short-span bridges based on various criteria and evaluates the performance of the existing bridges. Decision-making processes regarding the adoption of ABC, choice of elements, systems, and construction methods are also discussed. Additionally, the book covers the inspection of short-span bridges and includes a design example.
Bridge Safety Maintenance Management Life Cycle Resilience And Sustainability
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Author : Joan Ramon Casas
language : en
Publisher: CRC Press
Release Date : 2022-06-27
Bridge Safety Maintenance Management Life Cycle Resilience And Sustainability written by Joan Ramon Casas and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-27 with Technology & Engineering categories.
Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability contains lectures and papers presented at the Eleventh International Conference on Bridge Maintenance, Safety and Management (IABMAS 2022, Barcelona, Spain, 11–15 July, 2022). This e-book contains the full papers of 322 contributions presented at IABMAS 2022, including the T.Y. Lin Lecture, 4 Keynote Lectures, and 317 technical papers from 36 countries all around the world. The contributions deal with the state-of-the-art as well as emerging concepts and innovative applications related to the main aspects of safety, maintenance, management, life-cycle, resilience, sustainability and technological innovations of bridges. Major topics include: advanced bridge design, construction and maintenance approaches, safety, reliability and risk evaluation, life-cycle management, life-cycle, resilience, sustainability, standardization, analytical models, bridge management systems, service life prediction, structural health monitoring, non-destructive testing and field testing, robustness and redundancy, durability enhancement, repair and rehabilitation, fatigue and corrosion, extreme loads, needs of bridge owners, whole life costing and investment for the future, financial planning and application of information and computer technology, big data analysis and artificial intelligence for bridges, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of making more rational decisions on bridge safety, maintenance, management, life-cycle, resilience and sustainability of bridges for the purpose of enhancing the welfare of society. The volume serves as a valuable reference to all concerned with and/or involved in bridge structure and infrastructure systems, including students, researchers and practitioners from all areas of bridge engineering.
Next Generation Of Bridge Columns For Accelerated Bridge Construction In High Seismic Zones
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Author : Mostafa Tazarv
language : en
Publisher:
Release Date : 2014
Next Generation Of Bridge Columns For Accelerated Bridge Construction In High Seismic Zones written by Mostafa Tazarv and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Columns, Concrete categories.
Longitudinal bar debonding allowed spread of yielding and prevented premature failure of reinforcements in UHPC-filled duct connections and grouted coupler column pedestal. The SMA-reinforced ECC column showed superior seismic performance compared to a conventional column in which the plastic hinge damage was limited to only ECC cover spalling even under 12% drift ratio cycles. The column residual displacements were 79% lower than CIP residual displacements on average due to the superelastic NiTi SMA longitudinal reinforcement, and higher base shear capacity and higher displacement capacity were observed. The analytical modeling methods were simple and sufficiently accurate for general design and analyses of precast components proposed in the present study. The proposed symmetrical material model for reinforcing NiTi superelastic SMA was found to be a viable alternative to the more complex asymmetrical model.
International Congress On Polymers In Concrete Icpic 2018
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Author : Mahmoud M. Reda Taha
language : en
Publisher: Springer
Release Date : 2018-04-06
International Congress On Polymers In Concrete Icpic 2018 written by Mahmoud M. Reda Taha and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-06 with Technology & Engineering categories.
This volume collects the proceedings from the International Congress of Polymers in Concrete 2018 (ICPIC), held under the theme “Polymers for Resilient and Sustainable Concrete Infrastructure.” ICPIC 2018 provides an opportunity for researchers and specialists working in the fields of polymers to exchange ideas and follow the latest progress in the use of polymers in concrete infrastructure. It also showcases the use of polymers and polymer concrete in sustainable and resilient development, and provides a platform for local and overseas suppliers, developers, manufacturers and contractors using polymers, polymer concrete and polymer composites in concrete structures to develop new business opportunities and follow the latest developments in the field. The International Congress of Polymers in Concrete is an international forum that has taken place every three years for the last 40 years with the objective of following progress in the field of polymers and their use in concrete and construction. Following 15 successful congresses held in London (1975), Austin (1978), Koriyama (1981), Darmstadt (1984), Brighton (1987), Shanghai (1990), Moscow (1992), Oostende (1995), Bologna (1998), Honolulu (2001), Berlin (2004), Chuncheon (2007), Funchal (2010), Shanghai (2013) and Singapore (2015), the 16th ICPIC will take place in Washington, DC, from April 29 to May 1st, 2018.
Seismic Performance Of Precast Girder To Cap Connections For Accelerated Bridge Construction Of Integral Bridges
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Author : Justin Vander Werff
language : en
Publisher:
Release Date : 2015
Seismic Performance Of Precast Girder To Cap Connections For Accelerated Bridge Construction Of Integral Bridges written by Justin Vander Werff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Bridges categories.
Static And Dynamic Performance Analysis Of Structures And Materials Under Complex Loads And Environmental Excitation
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Author : Ping Xiang
language : en
Publisher: Frontiers Media SA
Release Date : 2025-05-29
Static And Dynamic Performance Analysis Of Structures And Materials Under Complex Loads And Environmental Excitation written by Ping Xiang and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-05-29 with Technology & Engineering categories.
With the development of structural materials, more and more new materials and construction methods are applied to infrastructure construction in order to achieve carbon neutrality and emission peak. Nowadays, people have more and more strict requirements for the comfort, safety and resistance to environmental disasters of infrastructure. Therefore, the static and dynamic performance of new structures and materials under complex environment and load becomes more and more important in construction and design of infrastructure engineering. Modern civil engineering has been developing towards intelligence. Both construction technology and material technology are developing towards a more intelligent direction. How to take new means to make the structure have good mechanical performance, and can sense the external environment and load excitation, is a development direction of civil engineering. This Research Topic welcomes researches on the macro and micro mechanical performance analysis of materials, static and dynamic response analysis of structures in construction engineering, bridge engineering, railway engineering and geotechnical engineering. In addition, under the action of wind load and earthquake load, the large-scale vibration of structures will seriously endanger the safety. The safety and stability performances of infrastructures still represent a serious challenge to researchers, engineers, and constructors. This Research Topic is dedicated to the most recent advances in research into the mechanical performances of structures and materials and some related applications. We welcome scientists and investigators to contribute Original Research and Review articles, addressing the main issues facing the field. Potential topics include but are not limited to the following: • New theoretical, numerical, and experimental methods for vibration of structures. • Assessment of dynamic responses of infrastructures under static and dynamic loads. • Innovative design and mechanical performances of composite structures. • Intelligent structural health monitoring with optical fiber sensing technology. • Mechanical performances of structures and materials from micro to macro scales. • Mechanism of vehicle bridge coupling vibration. • Structural fatigue performance analysis under earthquakes. • Infrastructure innovations for durability and resilience with new structure system and materials. • Dynamic evolution of structural damage under extreme loads such as earthquake, typhoon and impact. • Structural heath monitoring of large-scale infrastructures. • Numerical modelling and computational mechanical analysis of structures and infrastructures.
Seismic Response Of Precast Bridge Columns With Energy Dissipating Joints
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Author : Sarira Motaref
language : en
Publisher:
Release Date : 2011
Seismic Response Of Precast Bridge Columns With Energy Dissipating Joints written by Sarira Motaref and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Columns, Concrete categories.