Puentes

COMPREHENSIVE DESIGN EXAMPLE FOR PRESTRESSED CONCRETE (PSC) GIRDER SUPERSTRUCTURE BRIDGE WITH COMMENTARY
(Task order DTFH61-02-T-63032)

SI UNITS VERSION – CONVERTED FROM THE USCU VERSION OF THE EXAMPLE Submitted to
THE FEDERAL HIGHWAY ADMINISTRATION

Prepared By Modjeski and Masters, Inc.

November 2003

Technical Report Documentation Page
1. 4. Report No. 2. Government Accession No.3. 5. Recipient’s Catalog No. Report Date

FHWA NHI - 04-044
Title and Subtitle

7. 9.

Comprehensive Design Example for Prestressed Concrete (PSC) Girder Superstructure Bridge with Commentary (in SI Units) Author (s) Wagdy G. Wassef, Ph.D., P.E., Christopher Smith, E.I.T. Chad M. Clancy, P.E., Martin J. Smith, P.E.
Performing Organization Name and Address

November 2003
6. PerformingOrganization Code

8. 10. 11. 13.

Performing Organization Report No. Work Unit No. (TRAIS) Contract or Grant No.

Modjeski and Masters, Inc. P.O.Box 2345 Harrisburg, Pennsylvania 17105
12. Sponsoring Agency Name and Address

DTFH61-02-D-63006
Type of Report and Period Covered

Federal Highway Administration National Highway Institute (HNHI-10) 4600 N. Fairfax Drive, Suite 800Arlington, Virginia 22203
15. Supplementary Notes

Final Submission August 2002 – November 2003
14. Sponsoring Agency Code

Modjeski and Masters Principle Investigator and Project Manager : Wagdy G. Wassef , Ph.D., P.E.
Chad M. Clancy, P.E.

Martin J. Smith, P.E. FHWA Contracting Officer’s Technical Representative: Thomas K. Saad, P.E. Team Leader, Technical Review Team: Jerry Potter, P.E.
16.Abstract

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 (SecondEdition, 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 AASHTOLRFD Bridge Design Specifications. This document is offered in Standard International (SI) Units. An accompanying document in US Customary Units is offered under report No. FHWA NHI-04-043. This document includesdetailed 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 andpile 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

18.

Distribution Statement

Bridge Design, Prestressed Concrete, Load and Resistance Factor Design, LRFD,Concrete Deck, Intermediate Bent, Integral Abutment, Wingwall, Pile Foundation, Spread Footings
19. Security Classif. (of this report) 20. Security Classif. (of this page)

This report is available to the public from the National Technical Information Service in Springfield, Virginia 22161 and from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402.
21. No.of Pages 22. Price

Unclassified Form DOT F 1700.7 (8-72)

Unclassified 381 Reproduction of completed page authorized

This page intentionally left blank

ACKNOWLEDGEMENTS
The authors would like to express appreciation to the review teams from the Illinois Department of Transportation, Minnesota Department of Transportation and Washington State Department of Transportation for...