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Title:

Challenges of Long-Span Prestressed Girder Bridges in Washington State

Accession Number:

01365644

Record Type:

Component

Abstract:

The rising need to upgrade the aging highway bridge system requires the development of innovative solutions that will lead to durable bridges with low life cycle costs. Long-span bridges made with higher strength concretes are often used in environmentally sensitive terrains, water crossings, and in locations with traffic and geometrical restrictions. Precast pretensioned girders are beneficial for long span bridges due to their ease of construction, lower life-cycle cost and durability. The applicability of the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design and Construction Specifications to long span prestressed girders is unclear and need to be studied. The suitability and benefits of larger diameter prestressing strands, high strength concretes, ultra high performance concretes, and light weight aggregates concrete for long span pretensioned girders should be investigated. This paper discusses design, fabrication, shipping and handling associated with long-span precast pretensioned girders. The current Washington State Department of Transportation (WSDOT) practice for design and construction of long span precast pretensioned girder superstructures are presented in this paper.

Supplemental Notes:

This paper was sponsored by TRB committee AFF30 Concrete Bridges

Monograph Accession #:

01362476

Report/Paper Numbers:

12-0468

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Khaleghi, Bijan

Pagination:

18p

Publication Date:

2012

Conference:

Transportation Research Board 91st Annual Meeting

Location: Washington DC, United States
Date: 2012-1-22 to 2012-1-26
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Geographic Terms:

Washington (State)

Subject Areas:

Bridges and other structures; Design; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I60: Maintenance

Source Data:

Transportation Research Board Annual Meeting 2012 Paper #12-0468

Files:

TRIS, TRB

Created Date:

Feb 8 2012 4:55PM