Flexural behavior of prestressed FRP tubular bridge deck

被引：8

作者：

Wu, Zhenhua ^{[2
]}

Mirmiran, Amir ^{[1
]}

Zhu, Zhenyu ^{[1
]}

Swanson, James ^{[3
]}

机构：

[1] Florida Int Univ, Dept Civil & Environm Engn, Miami, FL 33174 USA

[2] N Carolina State Univ, Dept Civil Construct & Environm Engn, Raleigh, NC 27695 USA

[3] Univ Cincinnati, Dept Civil & Environm Engn, Cincinnati, OH 45221 USA

来源：

COMPOSITES PART B-ENGINEERING | 2009年 / 40卷 / 02期

关键词：

Glass fibers; Delamination; Finite element analysis; Mechanical testing; Pultrusion;

D O I：

10.1016/j.compositesb.2008.11.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An experimental and analytical study was undertaken to assess the flexural behavior of a new fiber reinforced polymer (FRP) deck system. The deck consists of a series of pultruted FRP tubes, post-tensioned in between each two stringers. Seven pure compression tests and eleven flexural tests were carried out to investigate the effect of tube size, bonding condition, post-tensioning, and supporting conditions. Finite element modeling of compression and flexural specimens was carried out to determine the effect of tube interface friction, bond and geometry restraints. The study showed feasibility of the new deck system for bridges with closely spaced stringers, where lack of two-way panel action is not a primary concern. Failure modes were also identified for these types of deck systems. Longer span decks generally failed in bending, whereas shorter span decks suffered from local shear failure at the corner of the tubes. Pre-stressing provided redundancy and reserved strength to the deck system. (C) 2009 Published by Elsevier Ltd

引用

页码：125 / 133

页数：9

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