|FHWA > Infrastructure > Bridge > LRFD > Design Examples > PSC (USC Units)|
|1. Report No.
|2. Government Accession No.||3. Recipient's Catalog No.|
|4. Title and Subtitle
Comprehensive Design Example for Prestressed Concrete (PSC)
Girder Superstructure Bridge with Commentary
(in US Customary Units)
|5. Report Date|
|6. Performing Organization Code|
|8. Performing Organization Report No.|
Wagdy G. Wassef, Ph.D., P.E., Christopher Smith, E.I.T.
Chad M. Clancy, P.E., Martin J. Smith, P.E.
|9. Performing Organization Name and Address
Modjeski and Masters, Inc.
Harrisburg, Pennsylvania 17105
|10. Work Unit ( TRAIS)|
|11. Contract or Grant No.|
|13. Type of Report and Period Covered|
August 2002 - November 2003
|12. Sponsoring Agency Name and Address|
Federal Highway Administration
National Highway Institute (HNHI-10)
4600 N. Fairfax Drive, Suite 800
Arlington, Virginia 22203
|14. Sponsoring Agency Code|
|15. Supplementary Notes|
Modjeski and Masters Principle Investigator and Project Manager:
Wagdy G. Wassef , Ph.D., P.E.
FHWA Contracting Officer's Technical Representative: Thomas K. Saad, P.E.
Team Leader, Technical Review Team: Jerry Potter, P.E.
This document consists of a comprehensive design example of a prestressed concrete girder bridge. The superstructure consists of two simple spans made continuous for live loads. The substructure consists of integral end abutments and a multi-column intermediate bent. The document also includes instructional commentary based on the AASHTO-LRFD Bridge Design Specifications (Second Edition, 1998, including interims for 1999 through 2002). The design example and commentary are intended to serve as a guide to aid bridge design engineers with the implementation of the AASHTO-LRFD Bridge Design Specifications. This document is offered in US Customary Units. An accompanying document in Standard International (SI) Units is offered under report No. FHWA NHI-04-044.
This document includes detailed flowcharts outlining the design steps for all components of the bridge. The flowcharts are cross-referenced to the relevant specification articles to allow easy navigation of the specifications. Detailed design computations for the following components are included: concrete deck, prestressed concrete I-girders, elastomeric bearing, integral abutments and wing walls, multi-column bent and pile and spread footing foundations.
In addition to explaining the design steps of the design example, the comprehensive commentary goes beyond the specifics of the design example to offer guidance on different situations that may be encountered in other bridges.
|17. Key Words
Bridge Design, Prestressed Concrete, Load and Resistance
Factor Design, LRFD, Concrete Deck, Intermediate Bent,
Integral Abutment, Wingwall, Pile Foundation, Spread
|18. Distribution Statement|
No restrictions. This document is available to the public from the National Technical Information Service, Springfield, Virginia 22161 and from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402.
|19. Security Classif. (of this report) Unclassified||20. Security Classif. (of this page)
|21. No. of Pages
Form DOT F 1700.7 (8-72) Reproduction of completed page authorized