Download AASHTO guide specifications for LRFD seismic bridge design by Roy A Imbsen; American Association of State Highway and PDF

By Roy A Imbsen; American Association of State Highway and Transportation Officials. Subcommittee on Bridges and Structures

ISBN-10: 1560513969

ISBN-13: 9781560513964

This booklet covers seismic layout for usual bridge varieties and applies to non-critical and non-essential bridges. it's licensed as another to the seismic provisions within the AASHTO LRFD Bridge layout Specifications. This differs from the present tactics within the LRFD Specifications within the use of displacement-based layout strategies, rather than the conventional force-based R-Factor process. It comprises certain assistance and statement on earthquake-resisting components and platforms, international layout suggestions, call for modeling, ability calculation, and liquefaction results. ability layout tactics underpin the advisor requisites’ method; contains prescriptive detailing for plastic hinging areas and layout requisites for ability security of these components that are meant to now not event harm.
Included during this digital variation are the 2012 and 2014 period in-between Revisions. Following each one bankruptcy the Revisions are pointed out in addition to associated in the course of the complete booklet the place to be had. See the "Interim Revisions" sections for an entire checklist of adjustments to every part.
Content:
entrance topic
• period in-between Revisions 2012
• Preface
• desk of Contents
Section 1. Introduction
Section 2. Definitions and Notation
Section three. common Requirements
Section four. research and layout Requirements
Section five. Analytical versions and Procedures
Section 6. origin and Abutment Design
Section 7. Structural metal Components
Section eight. strengthened Concrete Components
References
Appendices

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Sample text

Duplication is a violation of applicable law. SECTION 3: GENERAL REQUIREMENTS 3-7 particularly so in the longitudinal direction of a straight bridge with little or no skew and with a continuous deck. The controversy with this design concept is the scenario of what may happen if there is significant abutment damage early in the earthquake ground motion duration and if the columns rely on the abutment to resist some of the load. This would be a problem in a long-duration, high-magnitude (greater than magnitude 7) earthquake.

1000-yr Return Period) © 2011 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law. 2-sec (Ss) with Seven Percent Probability of Exceedance in 75 yr (Approx. 1000-yr Return Period) and Five Percent Critical Damping © 2011 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law. 0-sec (S1) with Seven Percent Probability of Exceedance in 75 yr (Approx.

All rights reserved. Duplication is a violation of applicable law. 2-sec (Ss) with Seven Percent Probability of Exceedance in 75 yr (Approx. 1000-yr Return Period) and Five Percent Critical Damping © 2011 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law. 0-sec (S1) with Seven Percent Probability of Exceedance in 75 yr (Approx. 1000-yr Return Period) and Five Percent Critical Damping © 2011 by the American Association of State Highway and Transportation Officials.

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