Proposed Modification to AASHTO Cross-frame Analysis and Design

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Publisher :
ISBN 13 : 9780309673730
Total Pages : 144 pages
Book Rating : 4.6/5 (737 download)

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Book Synopsis Proposed Modification to AASHTO Cross-frame Analysis and Design by : Matthew Craig Reichenbach

Download or read book Proposed Modification to AASHTO Cross-frame Analysis and Design written by Matthew Craig Reichenbach and published by . This book was released on 2021 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross-frames are important structural components that serve many functions throughout the service life of steel I-girder bridges. Under repetitive load cycles caused by heavy truck passages, cross-frames and their connections can be susceptible to load-induced fatigue cracking if not properly designed. The TRB National Cooperative Highway Research Program's NCHRP Research Report 962: Proposed Modification to AASHTO Cross-Frame Analysis and Design addresses knowledge gaps in an attempt to improve the reliability and economy of cross-frames in steel I-girder bridges and produces quantitatively based methodologies and design guidelines. Appendices B through F provide examples of cross-frame design for a straight bridge and a curved bridge as well as a comprehensive overview of the work completed in Phases I, II, and III of the project. Appendix A, Proposed Modifications to AASHTO LRFD, will be published by AASHTO.

Cross-frame Diaphragm Bracing of Steel Bridge Girders

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Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Cross-frame Diaphragm Bracing of Steel Bridge Girders by : W. M. Kim Roddis

Download or read book Cross-frame Diaphragm Bracing of Steel Bridge Girders written by W. M. Kim Roddis and published by . This book was released on 2008 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steel plate girder bridges make use of traditional cross-frame diaphragms to stabilize the compression flange of girders. These braces are required during construction, especially during deck placement, to prevent lateral torsional buckling of bridge girders. Girder buckling capacity is a function of cross-frame diaphragm spacing as well as strength and stiffness. Recent developments in bridge design may cause the governing girder limit state to shift from one of strength to one of stability. These developments include the elimination of in-plan bracing, composite girders, High Performance Steels, and phased deck replacements. In addition, the American Association of State Highway and Transportation Officials (AASHTO) has changed its code requirement for cross-frame diaphragm spacing in the 1998 AASHTO LRFD Bridge Design Specifications. The requirement for 25-foot maximum brace spacing has been removed. The current requirement is for a "rational analysis" to determine cross-frame diaphragm spacing. Explanations of the problems these changes cause in design are discussed. A case study is presented of a bridge that suffered construction difficulties during deck placement. This investigation found that the cross-frame diaphragms were not stiff enough to brace the plate girders during the deck placement. Suggestions are given as to an efficient, economical design and spacing for cross-frame diaphragms on plate girder bridges.

LRFD Bridge Design

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Publisher : CRC Press
ISBN 13 : 1000543374
Total Pages : 387 pages
Book Rating : 4.0/5 (5 download)

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Book Synopsis LRFD Bridge Design by : Tim Huff

Download or read book LRFD Bridge Design written by Tim Huff and published by CRC Press. This book was released on 2022-02-23 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines and explains material from the 9th edition of the AASHTO LRFD Bridge Design Specifications, including deck and parapet design, load calculations, limit states and load combinations, concrete and steel I-girder design, bearing design, and more. With increased focus on earthquake resiliency, two separate chapters– one on conventional seismic design and the other on seismic isolation applied to bridges– will fully address this vital topic. The primary focus is on steel and concrete I-girder bridges, with regard to both superstructure and substructure design. Features: Includes several worked examples for a project bridge as well as actual bridges designed by the author Examines seismic design concepts and design details for bridges Presents the latest material based on the 9th edition of the LRFD Bridge Design Specifications Covers fatigue, strength, service, and extreme event limit states Includes numerous solved problems and exercises at the end of each chapter to illustrate the concepts presented LRFD Bridge Design: Fundamentals and Applications will serve as a useful text for graduate and upper-level undergraduate civil engineering students as well as practicing structural engineers.

LRFD Guide Specifications for the Design of Pedestrian Bridges

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Publisher : AASHTO
ISBN 13 : 1560514698
Total Pages : 38 pages
Book Rating : 4.5/5 (65 download)

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Book Synopsis LRFD Guide Specifications for the Design of Pedestrian Bridges by : American Association of State Highway and Transportation Officials

Download or read book LRFD Guide Specifications for the Design of Pedestrian Bridges written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2009 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Cross Frames Analysis and Design

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Publisher :
ISBN 13 :
Total Pages : 390 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Cross Frames Analysis and Design by : Alfred G. Bishara

Download or read book Cross Frames Analysis and Design written by Alfred G. Bishara and published by . This book was released on 1993 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

AASHTO Guide Specifications for LRFD Seismic Bridge Design

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Publisher : AASHTO
ISBN 13 : 1560513969
Total Pages : 249 pages
Book Rating : 4.5/5 (65 download)

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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 2009 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers seismic design for typical bridge types and applies to non-critical and non-essential bridges. Approved as an alternate to the seismic provisions in the AASHTO LRFD Bridge Design Specifications. Differs from the current procedures in the LRFD Specifications in the use of displacement-based design procedures, instead of the traditional force-based "R-Factor" method. Includes detailed guidance and commentary on earthquake resisting elements and systems, global design strategies, demand modeling, capacity calculation, and liquefaction effects. Capacity design procedures underpin the Guide Specifications' methodology; includes prescriptive detailing for plastic hinging regions and design requirements for capacity protection of those elements that should not experience damage.

Engineering for Structural Stability in Bridge Construction

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Publisher :
ISBN 13 :
Total Pages : 669 pages
Book Rating : 4.6/5 (675 download)

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Book Synopsis Engineering for Structural Stability in Bridge Construction by : Federal Highway Federal Highway Administration

Download or read book Engineering for Structural Stability in Bridge Construction written by Federal Highway Federal Highway Administration and published by . This book was released on 2020-07-19 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual is intended to serve as a reference. It will provide technical information which will enable Manual users to perform the following activities:Describe typical erection practices for girder bridge superstructures and recognize critical construction stagesDiscuss typical practices for evaluating structural stability of girder bridge superstructures during early stages of erection and throughout bridge constructionExplain the basic concepts of stability and why it is important in bridge erection* Explain common techniques for performing advanced stability analysis along with their advantages and limitationsDescribe how differing construction sequences effect superstructure stabilityBe able to select appropriate loads, load combinations, and load factors for use in analyzing superstructure components during constructionBe able to analyze bridge members at various stages of erection* Develop erection plans that are safe and economical, and know what information is required and should be a part of those plansDescribe the differences between local, member and global (system) stability

AASHTO Guide Specifications for LRFD Seismic Bridge Design

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Author :
Publisher : AASHTO
ISBN 13 : 156051521X
Total Pages : 271 pages
Book Rating : 4.5/5 (65 download)

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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.

Guide Specifications for Seismic Isolation Design

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Publisher : AASHTO
ISBN 13 : 1560514566
Total Pages : 63 pages
Book Rating : 4.5/5 (65 download)

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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.

Roadside Design Guide

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Publisher :
ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Roadside Design Guide by : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety

Download or read book Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety and published by . This book was released on 1989 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Redundancy in Highway Bridge Superstructures

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Publisher : Transportation Research Board
ISBN 13 : 9780309062572
Total Pages : 56 pages
Book Rating : 4.0/5 (625 download)

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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:

AASHTO Guide for Design of Pavement Structures, 1993

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Publisher : AASHTO
ISBN 13 : 1560510552
Total Pages : 622 pages
Book Rating : 4.5/5 (65 download)

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Book Synopsis AASHTO Guide for Design of Pavement Structures, 1993 by : American Association of State Highway and Transportation Officials

Download or read book AASHTO Guide for Design of Pavement Structures, 1993 written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 1993 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design related project level pavement management - Economic evaluation of alternative pavement design strategies - Reliability / - Pavement design procedures for new construction or reconstruction : Design requirements - Highway pavement structural design - Low-volume road design / - Pavement design procedures for rehabilitation of existing pavements : Rehabilitation concepts - Guides for field data collection - Rehabilitation methods other than overlay - Rehabilitation methods with overlays / - Mechanistic-empirical design procedures.

Timber Bridges

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Publisher : Datamotion Publishing LLC
ISBN 13 : 9781937299095
Total Pages : 916 pages
Book Rating : 4.2/5 (99 download)

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Book Synopsis Timber Bridges by : Michael A. Ritter

Download or read book Timber Bridges written by Michael A. Ritter and published by Datamotion Publishing LLC. This book was released on 1990 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a comprehensive analysis of the design, construction, inspection, and maintenance of timber bridges.

Examples for the Design of Structural Concrete with Strut-and-tie Models

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Publisher :
ISBN 13 :
Total Pages : 264 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Examples for the Design of Structural Concrete with Strut-and-tie Models by : American Concrete Institute. Convention

Download or read book Examples for the Design of Structural Concrete with Strut-and-tie Models written by American Concrete Institute. Convention and published by . This book was released on 2002 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Prepared by members of ACI Subcommittee 445-1, Strut and Tie Models, for sessions at the Fall Convention in Phoenix, October 27 to November 1, 2002, and sponsored by Joint ACI-ASCE Committee 445, Shear and Torsion and ACI Committee 318-E, Shear and Torsion."

Gravel Roads

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Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis Gravel Roads by : Ken Skorseth

Download or read book Gravel Roads written by Ken Skorseth and published by . This book was released on 2000 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.

Improved Design Specifications for Horizontally Curved Steel Girder Highway Bridges

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Author :
Publisher : Transportation Research Board
ISBN 13 : 9780309063166
Total Pages : 140 pages
Book Rating : 4.0/5 (631 download)

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Book Synopsis Improved Design Specifications for Horizontally Curved Steel Girder Highway Bridges by : Dann H. Hall

Download or read book Improved Design Specifications for Horizontally Curved Steel Girder Highway Bridges written by Dann H. Hall and published by Transportation Research Board. This book was released on 1999 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Steel Box Girder Bridges

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Author :
Publisher : Thomas Telford Publishing
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Steel Box Girder Bridges by :

Download or read book Steel Box Girder Bridges written by and published by Thomas Telford Publishing. This book was released on 1973 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: