Design Specifications for Highway Bridges
Design Specifications for Highway Bridges

Author: Nihon Dōro Kyōkai

Publisher:

Published: 1998

Total Pages: 207

ISBN-13:

DOWNLOAD EBOOK

Translation of current design specifications for highway bridges, published in 1996 by Japan Road Association. The revisions are based on lessons learned from damage caused to bridges by the 1995 Hyogo-ken (Kobe) earthquake.

AASHTO Guide Specifications for LRFD Seismic Bridge Design
AASHTO Guide Specifications for LRFD Seismic Bridge Design

Author:

Publisher: AASHTO

Published: 2009

Total Pages: 249

ISBN-13: 1560513969

DOWNLOAD EBOOK

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.

Bridge Engineering
Bridge Engineering

Author: W.F. Chen

Publisher: CRC Press

Published: 2003-02-27

Total Pages: 479

ISBN-13: 1420039784

DOWNLOAD EBOOK

Mitigating the effects of earthquakes is crucial to bridge design. With chapters culled from the best-selling Bridge Engineering Handbook, this volume sets forth the principles and applications of seismic design, from the necessary geotechnical and dynamic analysis background to seismic isolation and energy dissipation, active control, and retrofit

Seismic Retrofit Designs for Existing Highway Bridges Built Before 1992
Seismic Retrofit Designs for Existing Highway Bridges Built Before 1992

Author: David Dong-Huei Wang

Publisher:

Published: 2004

Total Pages: 144

ISBN-13:

DOWNLOAD EBOOK

During the past 30 years, from 1975 to the present, dramatic changes have occurred in American Association of State Highway and Transportation Officials (AASHTO) standard specifications for highway bridges. Before 1971, AASHTO specifications for the seismic design of bridges were based in part on the lateral force requirements for buildings developed by the Structural Engineers Association of California (SEAOC). As a result of the 1971 San Fernando, California earthquake, the California Department of Transportation (CALTRANS) issued in 1973 new seismic design criteria for bridges. This criteria formed the basis of the 1975 to 1992 AASHTO "Interim Specifications for Highway Bridges", which provided the first analyses based on real earthquake modeling. In 1981, the Applied Technology Council (ATC) issued its ATC-6 "Seismic Design Guidelines for Highway Bridges", funded by the Federal Highway Administration. This formed the basis for AASHTO's Fifteenth (1992), Sixteenth (1996) and Seventeenth (2002) Editions of the revised seismic design criteria. Unfortunately, there are many pre-1992 bridges designed per the old AASHTO standard specifications, which had no provision for seismic design. This dissertation compares the earthquake design loadings used for earthquake design criteria for highway bridges, which were assigned by AASHTO standards before 1975, between 1975 and 1992, and after 1992. For bridges built by pre-1975 or 1975--1992 standards, the weakest points of the superstructure and substructure are determined and a method is devised for the design of the retrofit of these bridges. The earthquake design criteria and related equations included in the AASHTO Division IA standard specifications were investigated and recommendations have been made regarding how this information can be used more effectively in the retrofit of highway bridges built before 1992. -- Abstract.