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Seismic Response And Performance Based Assessment Of Multi Span Bridge Ground Systems
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Book Synopsis Seismic Response and Performance-Based Assessment of Multi-Span Bridge-Ground Systems by : Abdullah S E S E Almutairi
Download or read book Seismic Response and Performance-Based Assessment of Multi-Span Bridge-Ground Systems written by Abdullah S E S E Almutairi and published by . This book was released on 2019 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conducted study is directed towards enhancements in performance assessment of highway bridges under a wide range of earthquake input shaking scenarios. Seismic response of the superstructure is highly influenced by the global bridge-ground characteristics as an integral system. Therefore, nonlinear representation of the bridge deck, columns, abutments, and foundation response are to be integrated within a unified framework. On this basis, a performance-based earthquake engineering (PBEE) framework was extended and utilized to estimate the post-earthquake loss. To facilitate systematic execution of this analysis framework, a graphical user-interface was further developed and employed. For calibration purposes, a Finite Element (FE) model of an existing large heavily instrumented bridge system at Eureka, California (Samoa Channel Bridge) was developed. Calibration was undertaken based on the recorded earthquake response. Numerical simulations of the bridge model under seismic loading conditions were conducted. Simulation results show that the recorded data provide valuable insights to understand the seismic bridge response and to reliably estimate the damage. Using a practice-oriented pushover procedure, the response of a bridge subjected to liquefaction-induced lateral spreading was investigated. The analysis framework and representative results are presented, where the abutment lateral slope displacement is resisted by the entire bridge configuration. Permanent ground deformation induces longitudinal displacement on the abutment and consequently the entire bridge system. As such, the response of the bridge and its pile foundations were investigated and correlated with the imposed lateral spreading displacement. Overall, the novel contributions and findings are summarized as follows: (1) A bridge-ground seismic response computational analysis tool was further developed for routine practical applications; (2) In this tool, a PBEE framework was extended to handle multi-span bridge-ground systems within an integrated simulation environment; (3) Calibrated by recorded earthquake response, a framework was implemented for a representative large instrumented bridge-ground system in California to illustrate the involved response mechanisms and PBEE outcomes; (4) For response under lateral spreading considerations, a global bridge-ground systematic analysis framework was proposed and developed; (5) Patterned after an existing bridge in California, the framework was implemented with parametric studies addressing the procedure assumptions and potential retrofit bridge configurations.
Book Synopsis Seismic Design and Assessment of Bridges by : Andreas J. Kappos
Download or read book Seismic Design and Assessment of Bridges written by Andreas J. Kappos and published by Springer Science & Business Media. This book was released on 2012-04-18 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on the use of inelastic analysis methods for the seismic assessment and design of bridges, for which the work carried out so far, albeit interesting and useful, is nevertheless clearly less than that for buildings. Although some valuable literature on the subject is currently available, the most advanced inelastic analysis methods that emerged during the last decade are currently found only in the specialised research-oriented literature, such as technical journals and conference proceedings. Hence the key objective of this book is two-fold, first to present all important methods belonging to the aforementioned category in a uniform and sufficient for their understanding and implementation length, and to provide also a critical perspective on them by including selected case-studies wherein more than one methods are applied to a specific bridge and by offering some critical comments on the limitations of the individual methods and on their relative efficiency. The book should be a valuable tool for both researchers and practicing engineers dealing with seismic design and assessment of bridges, by both making the methods and the analytical tools available for their implementation, and by assisting them to select the method that best suits the individual bridge projects that each engineer and/or researcher faces.
Book Synopsis Perspectives on European Earthquake Engineering and Seismology by : Atilla Ansal
Download or read book Perspectives on European Earthquake Engineering and Seismology written by Atilla Ansal and published by Springer. This book was released on 2015-08-28 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects 4 keynote and 15 theme lectures presented at the 2nd European Conference on Earthquake Engineering and Seismology (2ECEES), held in Istanbul, Turkey, from August 24 to 29, 2014. The conference was organized by the Turkish Earthquake Foundation - Earthquake Engineering Committee and Prime Ministry, Disaster and Emergency Management Presidency under the auspices of the European Association for Earthquake Engineering (EAEE) and European Seismological Commission (ESC). The book’s nineteen state-of-the-art chapters were written by the most prominent researchers in Europe and address a comprehensive collection of topics on earthquake engineering, as well as interdisciplinary subjects such as engineering seismology and seismic risk assessment and management. Further topics include engineering seismology, geotechnical earthquake engineering, seismic performance of buildings, earthquake-resistant engineering structures, new techniques and technologies, and managing risk in seismic regions. The book also presents the First Professor Inge Lehmann Distinguished Award Lecture given by Prof. Shamita Das in honor of Prof. Dr. Inge Lehmann. The aim of this work is to present the state-of-the art and latest practices in the fields of earthquake engineering and seismology, with Europe’s most respected researchers addressing recent and ongoing developments while also proposing innovative avenues for future research and development. Given its cutting-edge conten t and broad spectrum of topics, the book offers a unique reference guide for researchers in these fields. Audience: This book is of interest to civil engineers in the fields of geotechnical and structural earthquake engineering; scientists and researchers in the fields of seismology, geology and geophysics. Not only scientists, engineers and students, but also those interested in earthquake hazard assessment and mitigation will find in this book the most recent advances.
Book Synopsis Performance-based Seismic Assessment of Skewed Bridges by : Peyman Kavianijopari
Download or read book Performance-based Seismic Assessment of Skewed Bridges written by Peyman Kavianijopari and published by . This book was released on 2011 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study focuses on identifying, both qualitatively and quantitatively, the seismic behavior of reinforced concrete bridges with seat-type abutments under earthquake loading, especially with respect to abutment skew angle. To that end, the study proposes novel methodologies for modeling skew-angled seat-type abutments and for seismic response assessment of structures whose response is characterized as "multi-phased." The proposed methodologies are applied to a comprehensive database of bridges with combinations of a variety of bridge geometric properties, including: (1) number of spans; (2) number of columns per bent; (3) column-bent height; (4) span arrangement; and (5) abutment skew angle. An extensive nonlinear response history analysis was conducted using three sets of ground motions representing records for rock sites and soil sites, as well as others that contained pronounced velocity pulses, denoted as "pulse-like." We demonstrate that demand parameters for skew-abutment bridges, such as deck rotation, abutment unseating, and column drift ratio, are higher than those for straight bridges. By investigating the sensitivity of various response parameters to variations in bridge geometry and ground motion characteristics, we show that bridges with larger abutment skew angles bear a higher probability of collapse due to excessive rotation, and that shear keys can play a major role in reducing deck rotations and thus the probability of collapse. We further show that resultant peak ground velocity (PGVres) is the most efficient ground motion intensity measure (IM) compared to many other IMs. In view of the skewed bridges' explicit changes in demand parameter behavior due to shear key failure, we propose a probabilistic-based approach for multi-phase structural response assessment. This method, denoted as "Multi-Phase Probabilistic Assessment of Structural Response to Seismic Excitations," or M-PARS, provides a probabilistic framework for computing the complementary probability distribution function of an engineering demand parameter given the ground motion intensity measure, G(EDP\IM).
Book Synopsis Performance-based Seismic Bridge Design by : M. Lee Marsh
Download or read book Performance-based Seismic Bridge Design written by M. Lee Marsh and published by Transportation Research Board. This book was released on 2013 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 440, Performance-Based Seismic Bridge Design (PBSD) summarizes the current state of knowledge and practice for PBSD. PBSD is the process that links decision making for facility design with seismic input, facility response, and potential facility damage. The goal of PBSD is to provide decision makers and stakeholders with data that will enable them to allocate resources for construction based on levels of desired seismic performance"--Publisher's description.
Book Synopsis Seismic Design and Assessment of Bridges by : Andreas J Kappos
Download or read book Seismic Design and Assessment of Bridges written by Andreas J Kappos and published by Springer Science & Business Media. This book was released on 2012-04-17 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on the use of inelastic analysis methods for the seismic assessment and design of bridges, for which the work carried out so far, albeit interesting and useful, is nevertheless clearly less than that for buildings. Although some valuable literature on the subject is currently available, the most advanced inelastic analysis methods that emerged during the last decade are currently found only in the specialised research-oriented literature, such as technical journals and conference proceedings. Hence the key objective of this book is two-fold, first to present all important methods belonging to the aforementioned category in a uniform and sufficient for their understanding and implementation length, and to provide also a critical perspective on them by including selected case-studies wherein more than one methods are applied to a specific bridge and by offering some critical comments on the limitations of the individual methods and on their relative efficiency. The book should be a valuable tool for both researchers and practicing engineers dealing with seismic design and assessment of bridges, by both making the methods and the analytical tools available for their implementation, and by assisting them to select the method that best suits the individual bridge projects that each engineer and/or researcher faces.
Book Synopsis Bridge Maintenance, Safety, Management, Resilience and Sustainability by : Fabio Biondini
Download or read book Bridge Maintenance, Safety, Management, Resilience and Sustainability written by Fabio Biondini and published by CRC Press. This book was released on 2012-06-21 with total page 4119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge Maintenance, Safety, Management, Resilience and Sustainability contains the lectures and papers presented at The Sixth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2012), held in Stresa, Lake Maggiore, Italy, 8-12 July, 2012. This volume consists of a book of extended abstracts (800 pp) Extensive collection of revised expert papers on recent advances in bridge maintenance, safety, management and life-cycle performance, representing a major contribution to the knowledge base of all areas of the field.
Book Synopsis Seismic Design and Performance by : T.G. Sitharam
Download or read book Seismic Design and Performance written by T.G. Sitharam and published by Springer Nature. This book was released on 2021-03-26 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents select papers presented at the 7th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. The papers discuss advances in the fields of soil dynamics and geotechnical earthquake engineering. Some of the themes include seismic design of deep & shallow foundations, soil structure interaction under dynamic loading, marine structures, etc. A strong emphasis is placed on connecting academic research and field practice, with many examples, case studies, best practices, and discussions on performance based design. This volume will be of interest to researchers and practicing engineers alike.
Book Synopsis Seismic Response Analysis of a Multi-span Curved Continuous Box-grider Bridge with Multiple Supports by : Yifan Wang
Download or read book Seismic Response Analysis of a Multi-span Curved Continuous Box-grider Bridge with Multiple Supports written by Yifan Wang and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Curved concrete box-girder bridges are widely applied in highway systems to enable traffic to move from one highway to another. The Akşemsettin Viaduct (termed A Viaduct in the current study) in Istanbul, Turkey, is a typical 11-span curved continuous bridge with a total length of 596.8 m. Located in the high seismicity zone, the A Viaduct exhibits complex seismic behaviour because varying ground motion inputs are expected to excite the bridge at different column/abutment foundations. This study investigates the seismic responses of the A Viaduct under different ground motion scenarios using nonlinear time history analyses (NTHAs). In particular, the software of OpenSees is used to develop a high-fidelity finite element model for the A Viaduct, from which seismic responses of multiple critical components are compared under uniform versus multiple support excitations. To supplement such comparisons, a literature survey is conducted regarding seismic damage to curved bridges, their soil-structure interaction effect, and the multi-support excitation scheme. Moreover, modelling considerations of key components are presented for the A Viaduct, and 6 representative groups of simulated ground motions are selected to capture the effects of site-specific surface topography and soil stratigraphy at the bridge site"--
Book Synopsis Proceedings of 17th Symposium on Earthquake Engineering (Vol. 1) by : Manish Shrikhande
Download or read book Proceedings of 17th Symposium on Earthquake Engineering (Vol. 1) written by Manish Shrikhande and published by Springer Nature. This book was released on 2023-08-28 with total page 769 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select proceedings of the 17th Symposium on Earthquake Engineering organized by the Department of Earthquake Engineering, Indian Institute of Technology Roorkee. The topics covered in the proceedings include engineering seismology and seismotectonics, earthquake hazard assessment, seismic microzonation and urban planning, dynamic properties of soils and ground response, ground improvement techniques for seismic hazards, computational soil dynamics, dynamic soil–structure interaction, codal provisions on earthquake-resistant design, seismic evaluation and retrofitting of structures, earthquake disaster mitigation and management, and many more. This book also discusses relevant issues related to earthquakes, such as human response and socioeconomic matters, post-earthquake rehabilitation, earthquake engineering education, public awareness, participation and enforcement of building safety laws, and earthquake prediction and early warning system. This book is a valuable reference for researchers and professionals working in the area of earthquake engineering.
Author :fib Fédération internationale du béton Publisher :fib Fédération internationale du béton ISBN 13 :2883941084 Total Pages :124 pages Book Rating :4.8/5 (839 download)
Book Synopsis Probabilistic performance-based seismic design by : fib Fédération internationale du béton
Download or read book Probabilistic performance-based seismic design written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2012-05-07 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last ten to fifteen years a vast amount of research has been undertaken to improve on earlier methods for analysing the seismic reliability of structures. These efforts focused on identifying aspects of prominent relevance and disregarding the inessential ones, with the goal of producing methods that are both more efficient and easier to use in practice. Today this goal can be said to be substantially achieved. During these years scientific activity covered all of the many aspects involved in such a multi-disciplinary problem, ranging from seismology, to geotechnics, to structural analysis and economy, all of them to be consistently organised into a probabilistic framework. As the output of this research was dispersed into a multitude of technical papers, fib Commission 7 thought it worthwhile to select the essential aspects of this large body of knowledge and to present them into a coherent and accessible document for structural engineers. To this end a task group of specialists was formed, whose qualifications come from their personal involvement in the above-mentioned developments throughout this period of time. From its inception the group decided that the bulletin should have had a distinct educational character and provide a clear overview of the methods available. The outcome is a compact volume that starts by introducing the concepts and definitions of performance-based engineering, continues with two chapters on assessment and design, respectively, presenting the methods in detail accompanied by illustrative examples, and concludes with an appendix with sample programming excerpts for their implementation. It is believed that at present fib Bulletin 68 represents a unique compendium on probabilistic performance-based seismic design.
Book Synopsis Bridge Maintenance, Safety, Management and Life-Cycle Optimization by : Dan Frangopol
Download or read book Bridge Maintenance, Safety, Management and Life-Cycle Optimization written by Dan Frangopol and published by CRC Press. This book was released on 2010-07-07 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge Maintenance, Safety, Management and Life-Cycle Optimization contains the lectures and papers presented at IABMAS 2010, the Fifth International Conference of the International Association for Bridge Maintenance and Safety (IABMAS), held in Philadelphia, Pennsylvania, USA from July 11 through 15, 2010.All major aspects of bridge maintenance, s
Book Synopsis Performance-based Assessment of the Seismic Response of Highway Bridges with Deteriorated Reinforced Concrete by : Satoshi Matsuki
Download or read book Performance-based Assessment of the Seismic Response of Highway Bridges with Deteriorated Reinforced Concrete written by Satoshi Matsuki and published by . This book was released on 2005 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Integrated Probabilistic Performance-based Evaluation of Benchmark Reinforced Concrete Bridges by : Kevin Rory Mackie
Download or read book Integrated Probabilistic Performance-based Evaluation of Benchmark Reinforced Concrete Bridges written by Kevin Rory Mackie and published by . This book was released on 2008 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Probabilistic Structural Seismic Performance Assessment Methodology and Application to an Actual Bridge-foundation-ground System by : Yuyi Zhang
Download or read book Probabilistic Structural Seismic Performance Assessment Methodology and Application to an Actual Bridge-foundation-ground System written by Yuyi Zhang and published by . This book was released on 2006 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this work is to develop a probabilistic structural seismic performance assessment methodology. To facilitate, guide, and validate this development, the targeted methodology is applied to an actual bridge-foundation-ground system. First, Probabilistic Seismic Hazard Analysis (PSHA) predicts the possible earthquake ground motion intensities (IM) and their probabilities at the structure site based on the seismic environment. The result of PSHA is a seismic hazard curve that represents the mean annual rate (MAR) of IM exceeding any specified value. The probabilistic characterization of the seismic demand in terms of seismic demand hazard curves for several engineering demand parameters (EDPs) is obtained via nonlinear structural seismic response simulations for ensembles of actual earthquake excitations at various hazard levels. A seismic demand hazard curve for a given EDP provides the MAR of the EDP exceeding any specified value and is obtained by convolving the complementary conditional cumulative distribution function of the EDP given IM with the seismic hazard curve. Three potential failure mechanisms, namely pier flexural failure in the lap-spliced region, shear key failure, and unseating, were identified. A set of damage states was defined for each potential failure mechanism to characterize key stages of formation of the mechanism. New and existing predictive capacity models were used to estimate the structural capacity against each damage state. Based on the predictive capacity models and experimental data collected, a fragility function was developed for each damage state, which provides the conditional probability of damage state exceedance given a specified value of the associated EDP. Then for each potential damage state of the bridge, the MAR of damage state exceedance was computed as the convolution of the corresponding fragility function and seismic demand hazard curve. This probabilistic performance assessment methodology was extended to incorporate the randomness in system properties, such as structural and geotechnical material properties. Effects of the randomness in system properties on the bridge seismic reliability were evaluated. Finally, the loss hazard curve of the bridge was obtained through a multilayer Monte Carlo simulation procedure. This curve provides the MAR of the repair/replacement cost of the bridge exceeding any specified value.
Book Synopsis Experimental and Analytical Seismic Studies of a Four-span Bridge System with Innovative Materials by : Carlos Alonso Cruz-Noguez
Download or read book Experimental and Analytical Seismic Studies of a Four-span Bridge System with Innovative Materials written by Carlos Alonso Cruz-Noguez and published by . This book was released on 2010 with total page 1524 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of a multi-university project utilizing the NSF Network for Earthquake Engineering Simulation (NEES), a quarter-scale model of a four-span bridge incorporating plastic hinges with different advanced materials was tested to failure on the three shake table system at the University of Nevada, Reno (UNR). The bridge was the second test model in a series of three 4-span bridges, with the first model being a conventional reinforced-concrete (RC) structure. The purpose of incorporating advanced materials was to improve the seismic performance of the bridge with respect to two damage indicators: (1) column damage and (2) permanent deformations. The goals of the study presented in this document were to (1) evaluate the seismic performance of a 4-span bridge system incorporating SMA/ECC and built-in rubber pad plastic hinges as well as post-tensioned piers, (2) quantify the relative merit of these advanced materials and details compared to each other and to conventional reinforced concrete plastic hinges, (3) determine the influence of abutment-superstructure interaction on the response, (4) examine the ability of available elaborate analytical modeling techniques to model the performance of advanced materials and details, and (5) conduct an extensive parametric study of different variations of the bridge model to study several important issues in bridge earthquake engineering. The bridge model included six columns, each pair of which utilized a different advanced detail at bottom plastic hinges: shape memory alloys (SMA), special engineered cementitious composites (ECC), elastomeric pads embedded into columns, and post-tensioning tendons. The design of the columns, location of the bents, and selection of the loading protocol were based on pre-test analyses conducted using computer program OpenSees. The bridge model was subjected to two-horizontal components of simulated earthquake records of the 1994 Northridge earthquake. Over 340 channels of data were collected. The test results showed the effectiveness of the advanced materials in reducing damage and permanent displacements. The damage was minimal in plastic hinges with SMA/ECC and those with built-in elastomeric pads. Conventional RC plastic hinges were severely damaged due to spalling of concrete and rupture of the longitudinal and transverse reinforcement. Extensive post-test analytical studies were conducted and it was determined that a computational model of the bridge that included bridge-abutment interaction using OpenSees was able to provide satisfactory estimations of key structural parameters such as superstructure displacements and base shears. The analytical model was also used to conduct parametric studies on single-column and bridge-system response under near-fault ground motions. The effects of vertical excitations and transverse shear-keys at the bridge abutments on the superstructure displacement and column drifts were also explored.
Book Synopsis Analysis of the Observed Earthquake Response of a Multiple Span Bridge by : John Charles Wilson
Download or read book Analysis of the Observed Earthquake Response of a Multiple Span Bridge written by John Charles Wilson and published by . This book was released on 1984 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
