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TRB’s National Cooperative Highway Research Program (NCHRP) Report 681: Development of a Precast Bent Cap System for Seismic Regions explores the development and validation of precast concrete bent cap systems for use throughout the nation’s seismic regions.

The report also includes a series of recommended updates to the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specifications, Guide Specification for LRFD Seismic Bridge Design, and AASHTO LRFD Bridge Construction Specifications that will provide safe and reliable seismic resistance in a cost-effective, durable, and constructible manner.

A number of deliverables are provided as attachments to NCHRP Report 681, including design flow charts, design examples, example connection details, specimen drawings, specimen test reports, and an implementation plan from the research agency’s final report. These attachments, which are only available online, are titled as follows:

Attachment DS—Design Specifications

Attachment DE—Design Examples

Attachment CS—Construction Specifications

Attachment ECD—Example Connection Details

Attachment SD —Specimen Drawings

Attachment TR—Test Reports

Attachment CPT—Corrugated Pipe Thickness

Attachment IP—NCHRP 12-74 Implementation Plan

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2011. Development of a Precast Bent Cap System for Seismic Regions. Washington, DC: The National Academies Press. https://doi.org/10.17226/14484.

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Publication Info

106 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/14484

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