Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Evaluation Of Collapse And Non Collapse Of Parallel Bridges Affected By Liquefaction And Lateral Spreading
Download Evaluation Of Collapse And Non Collapse Of Parallel Bridges Affected By Liquefaction And Lateral Spreading full books in PDF, epub, and Kindle. Read online Evaluation Of Collapse And Non Collapse Of Parallel Bridges Affected By Liquefaction And Lateral Spreading ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Evaluation of Collapse and Non-collapse of Parallel Bridges Affected by Liquefaction and Lateral Spreading by : Benjamin Turner
Download or read book Evaluation of Collapse and Non-collapse of Parallel Bridges Affected by Liquefaction and Lateral Spreading written by Benjamin Turner and published by . This book was released on 2014 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bridge Collapse Frequencies versus Failure Probabilities by : Dirk Proske
Download or read book Bridge Collapse Frequencies versus Failure Probabilities written by Dirk Proske and published by Springer. This book was released on 2018-02-22 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph provides a comparative study between failure probabilities and collapse frequencies in structural bridge engineering. The author presents techniques to resolve and extend the limitations of both parameters, taking also into account the time dependency of both parameters. The book includes available data and case studies and thus presents patterns to identify potential weaknesses and challenges in bridge maintenance. The target audience primarily comprises practicing engineers in the field of bridge engineering, but the book may also be beneficial for academic researchers alike.
Book Synopsis The Science of a Bridge Collapse by : Nikole Brooks Bethea
Download or read book The Science of a Bridge Collapse written by Nikole Brooks Bethea and published by Cherry Lake. This book was released on 2014-08-01 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the science behind bridge collapses and their effects. The chapters examine historical bridge collapses, explain how bridges are designed and built, and show how scientists and engineers are working to prevent future collapses. Diagrams, charts, and photos provide opportunities to evaluate and understand the scientific concepts involved.
Download or read book Failed Bridges written by Joachim Scheer and published by John Wiley & Sons. This book was released on 2011-08-24 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gilt immer noch, dass ein Bauwerkseinsturz der beste Lehrmeister für den Fortschritt des Bauens ist? Oder, anders formuliert: Ist Bauen dann, wenn wir das Bewährte verlassen und Neues wagen, "Experimentieren"? Über die Ursache von Schadensfällen und Einstürzen, die oft mit dem Verlust von Menschenleben verbunden sind, wird nicht gern öffentlich gesprochen. Aber aus Fehlern kann man lernen. Die Lehren und Erfahrungen aus den Schadensauswertungen führen zu mehr Sicherheit und oft zum Innovationsschub. Die Kenntnis der Schadensursachen ist Voraussetzung für ihre zukünftige Vermeidung. Mit diesem Buch liegt eine systematische Zusammenstellung von über 400 Versagensfällen vor, die in besonderer Weise betrachtet werden: Sie werden nach dem Zeitpunkt ihres Auftretens im Lebenszyklus der Brücke, z. B. im Bauzustand oder im Betrieb, und nach den Schadensereignissen, z. B. Anprall oder Erdbeben, geordnet. Die wichtigsten Ursachen sind: menschliches Versagen, mangelnde Aussteifung, Materialversagen oder Überlastung. Es werden vorwiegend Brückeneinstürze, die in der Literatur wenig oder nach dem Urteil des Verfassers nicht vollständig oder nicht zutreffend behandelt sind, ausführlich analysiert. Mit Akribie gesammelt, kompetent und exzellent aufgearbeitet und mit Mut präsentiert, ergibt dies eine unverzichtbare Erkenntnisquelle für jeden Bauingenieur in der Praxis und für das Studium. Ein Katalog von Regeln wurde erstellt. Seine Beachtung kann helfen, Fehler bei Entwurf, Planung und Ausführung zu vermeiden.
Book Synopsis Guide Specifications for Seismic Isolation Design by :
Download or read book Guide Specifications for Seismic Isolation Design written by and published by AASHTO. This book was released on 2010 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edition is based on the work of NCHRP project 20-7, task 262 and updates the 2nd (1999) edition -- P. ix.
Book Synopsis Bridge Failure Rates, Consequences, and Predictive Trends by : Wesley Cook
Download or read book Bridge Failure Rates, Consequences, and Predictive Trends written by Wesley Cook and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A database of United States bridge failures was used to ascertain the failure rate of bridge collapses for a sample population with associated rates by causes. By using the National Bridge Inventory bridge counts, the bridge population, from which the collapsed bridge came from, was determined. The average number of bridge collapses based on the sample population was approximately 1/4,700 annually. The geometric distribution was determined to be a valid model for the number of bridge failures per annum through multiple methods. Based on the data extrapolation and 95% confidence interval, the estimated average annual bridge collapse rate in the United States is between 87 and 222 with an expected value of 128. The database showed hazards that have caused bridges to collapse historically, throughout the United States. Conditional probabilities of collapse rate with consideration for the features under the structures were constructed. The most likely cause of collapse was determined to be hydraulic in nature when adjusting for the features under the structure. The collapse rate of hydraulic causes was unknown from past investigations; however, the value was determined to be an annual rate of 1.52E-4. Collapse rates were also quantifiably established for other causes. The consequences coupled with the rate of failure by cause were quantitatively evaluated. A benchmark, set by the United States Army Corps of Engineers interim guideline for dam safety, was used to show that bridge collapses within the United States are within a tolerable range comparing collapses to life loss. To enhance risk-based and data-driven approaches to bridge management systems in compliance with Moving Ahead for Progress in the 21st Century Act, efficacious bridge collapse data collection is examined for this investigation. Trends obtained from statistical analysis of existing data show 53% of collapsed bridges were structurally deficient prior to collapse, and a failure rate of structurally deficient bridges to be 1/1,100 annually. Age and structural deficiency are related, structural deficiency and collapse are related, and age at collapse is contingent on collapse cause. It was determined that deterioration-caused and overload-caused bridge collapses are age related, but hydraulic-caused and collision-caused bridge collapses are not. Based on the desired results, trends seen in existing collapse data, improved collection efforts and data fields of interest are assessed with recommendations for analytical methods and consequence assessment while maintaining concise data. A national repository of bridge collapses at the federal level is paramount for effective bridge collapse risk analysis. Currently, bridge failure data is incomplete and insufficient to enable in-depth lifetime data analysis for improved bridge preservation. However, the frequency of collapses is often enough for large amounts of data to be collected in relatively few years.
Book Synopsis Kinematic Pile-Soil Interaction in Liquefied and Nonliquefied Ground by : Benjamin Turner
Download or read book Kinematic Pile-Soil Interaction in Liquefied and Nonliquefied Ground written by Benjamin Turner and published by . This book was released on 2016 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Part I of this dissertation, equivalent static analysis (ESA) procedures for computing foundation demands during lateral spreading are applied to two parallel bridges that were damaged during the 2010 M 7.2 El Mayor-Cucapah earthquake in Baja California, Mexico. A railroad bridge span collapsed, whereas the adjacent highway bridge survived with one support pier near the river having modest flexural cracking of cover concrete. Cone penetration and geophysical test results are presented along with geotechnical and structural conditions evaluated from design documents. ESA using a beam-on-Winkler foundation model is found to accurately predict observed responses when liquefaction-compatible inertia demands are represented as spectral displacements that account for resistance from other bridge components. Pier columns for the surviving bridge effectively resisted lateral spreading demands in part because of restraint provided by the superstructure. Collapse of the surviving bridge is incorrectly predicted when inertial demands are computed for the individual bent in isolation from other components, and are represented by forces that do not consider global restraint. In Part II, results of a parametric study of the influence of kinematic pile-soil interaction on foundation-input motions (FIM) are presented. One-dimensional nonlinear ground response analysis was used to define free-field motions, which were subsequently imposed on a beam-on-nonlinear-dynamic-Winkler-foundation pile model. The free-field ground surface motion (FFM) and top-of-pile "foundation-input motion" (FIM) computed from these results were then used to compute transfer functions and spectral ratios for use with the substructure method of seismic analysis. A total of 1,920 parametric combinations of different pile sizes, soil profiles, and ground motions were analyzed. Results of the study show that significant reductions of the FFM occur for stiff piles in soft soil, which could result in a favorable reduction in design demands for short-period structures. Group effects considering spatially-variable (incoherent) ground motions are found to be modest over the footprint of a typical bridge bent, resulting in an additional reduction of FFM by 10 percent or less compared to an equivalent single pile. This study aims to overcome limitations of idealistic assumptions that have been employed in previous studies such as linear-elastic material behavior, drastically simplified stratigraphy, and harmonic oscillations in lieu of real ground motions. In order to capture the important influence of more realistic conditions such as material nonlinearity, subsurface heterogeneity, and variable frequency-content ground motions, a set of models for predicting transfer functions and spectral ratios has been developed through statistical regression of the results from this parametric study. These allow foundation engineers to predict kinematic pile-soil interaction effects without performing dynamic pile analyses.
Book Synopsis U.S. Geological Survey Professional Paper by :
Download or read book U.S. Geological Survey Professional Paper written by and published by . This book was released on 1984 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NEHRP Recommended Provisions (National Earthquake Hazards Reduction Program) for Seismic Regulations for New Buildings and Other Structures: Commentary by : United States. Federal Emergency Management Agency
Download or read book NEHRP Recommended Provisions (National Earthquake Hazards Reduction Program) for Seismic Regulations for New Buildings and Other Structures: Commentary written by United States. Federal Emergency Management Agency and published by . This book was released on 2001 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bridge Engineering Handbook by : Wai-Fah Chen
Download or read book Bridge Engineering Handbook written by Wai-Fah Chen and published by CRC Press. This book was released on 2019-09-11 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 1999: The Bridge Engineering Handbook is a unique, comprehensive, and state-of-the-art reference work and resource book covering the major areas of bridge engineering with the theme "bridge to the 21st century."
Book Synopsis Forensic Engineering by : Alicia Díazde León
Download or read book Forensic Engineering written by Alicia Díazde León and published by . This book was released on 2012-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Sixth Congress on Forensic Engineering, held in San Francisco, California, October 31-November 3, 2012. Sponsored by the Technical Council on Forensic Engineering of ASCE. This collection contains 144 peer-reviewed papers presenting findings intended to help forensic engineers develop practices and procedures to reduce the number of failures, disseminate information on failures, and provide guidelines for conducting failure investigations and for ethical conduct. Topics include: bridges; building envelopes; critical infrastructure; design practices; disaster risk management; education; emerging technologies; fires; floods; flooring; geotechnical failures; hurricanes, tornadoes, and extreme winds; investigative methodologies; practices to reduce failures; professional practice; research and testing; residential construction; and structural failures. This will be valuable to engineers, researchers, educators, and students involved in forensic engineering.
Book Synopsis AASHTO Guide Specifications for LRFD Seismic Bridge Design by :
Download or read book AASHTO Guide Specifications for LRFD Seismic Bridge Design written by and published by AASHTO. This book was released on 2011 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work offers guidance on bridge design for extreme events induced by human beings. This document provides the designer with information on the response of concrete bridge columns subjected to blast loads as well as blast-resistant design and detailing guidelines and analytical models of blast load distribution. The content of this guideline should be considered in situations where resisting blast loads is deemed warranted by the owner or designer.
Book Synopsis Liquefaction Potential in the Central Mississippi Valley by : Stephen F. Obermeier
Download or read book Liquefaction Potential in the Central Mississippi Valley written by Stephen F. Obermeier and published by . This book was released on 1988 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Liquefaction During Earthquakes by : I. M. Idriss
Download or read book Soil Liquefaction During Earthquakes written by I. M. Idriss and published by . This book was released on 2008 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report written by and published by . This book was released on 1987 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Redundancy in Highway Bridge Superstructures by : Michel Ghosn
Download or read book Redundancy in Highway Bridge Superstructures written by Michel Ghosn and published by Transportation Research Board. This book was released on 1998 with total page 56 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:
