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Title:

HORIZONTALLY CURVED I-GIRDER BRIDGE ANALYSIS: V-LOAD METHOD

Accession Number:

00399172

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309037646

Abstract:

The V-load method is a widely used approximate method for the analysis of horizontally curved I-girder highway bridges. Previously, this method had been proven valid only for noncomposite I-girder bridges with radial supports. Thus, a study was made to extend the method to composite I-girder bridges with any general support configuration. Vload-analysis results for noncomposite and composite I-girder bridges under dead load and live load were compared with the corresponding results from three finite-element curved bridge models with different combinations of radial and skewed supports. The dead-load V-load results were extremely accurate. The live-load V-load results were strongly influenced by the lateral distribution factors that were used; specification distribution factors gave acceptable V-load results for exterior girders and conservative results for interior girders. More accurate results were obtained with more realistic factors. It is also shown that the V-load method is not a valid approximation for closed-framed I-girder systems with horizontal lateral wind bracing. Approximate expressions are presented to compute the warping stresses in the girder flanges, an important consideration in curved I-girder bridges.

Supplemental Notes:

Publication of this paper sponsored by Committee on Steel Bridges. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Monograph Title:

Bridges and foundations

Monograph Accession #:

01419860

Authors:

Grubb, Michael A

Editors:

Kaplan, Elizabeth W

Pagination:

pp 26-36

Publication Date:

1984

Serial:

Transportation Research Record

Issue Number: 982
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309037646

Media Type:

Print

Features:

Figures (7) ; References (14) ; Tables (4)

Uncontrolled Terms:

Horizontal curvature; I girders; Models; Warping

Old TRIS Terms:

Subject Areas:

Bridges and other structures; Design; Geotechnology; Highways; Materials; I24: Design of Bridges and Retaining Walls

Files:

TRIS, TRB

Created Date:

Jan 31 1986 12:00AM

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