Seismic Behavior of RC Shear Walls Strengthened for In-Plane Bending Using Externally Bonded FRP Sheets

被引：19

作者：

Cruz-Noguez, Carlos A. ^{[1
]}

Lau, David T. ^{[1
]}

Sherwood, Edward G. ^{[1
]}

Hiotakis, Stylianos ^{[2
]}

Lombard, Joshua ^{[3
]}

Foo, Simon ^{[4
]}

Cheung, Moe ^{[5
]}

机构：

[1] Carleton Univ, Dept Civil & Environm Engn, Ottawa, ON K1S 5B6, Canada

[2] MHPM Project Managers Inc, Ottawa, ON K2C 1E6, Canada

[3] Roney Engn Ltd, Kingston, ON K7M 3M9, Canada

[4] Publ Works & Govt Serv Canada, Gatineau, PQ J8X 4B7, Canada

[5] Hong Kong Univ Sci & Technol, Smart & Sustainable Infrastruct Res Ctr, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF COMPOSITES FOR CONSTRUCTION | 2015年 / 19卷 / 01期

关键词：

Fiber-reinforced polymer; Reinforced concrete; Shear wall; Cyclic test;

D O I：

10.1061/(ASCE)CC.1943-5614.0000478

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents the experimental results of a study investigating the effectiveness of using externally bonded fiber-reinforced polymer (FRP) tow sheets for in-plane bending strengthening and repair of reinforced concrete (RC) shear walls. The repair/strengthening scheme is designed to enhance the flexural load-carrying capacity of the walls and prevent brittle shear-related failures. The experimental program consisted of the performance evaluation of the FRP system in seven RC shear wall specimens tested to failure under lateral loads. The effectiveness of two different anchoring systems to transfer the loads carried by the FRP sheets to the supporting elements of the wall was also investigated. The experimental results showed that the FRP system was successful in restoring (in repair applications) and increasing (in strengthening applications) the initial stiffness and ultimate load-carrying capacity of the walls, while maintaining a ductile response behavior and avoiding brittle shear failures. A simple strength model to predict the peak strength of walls with externally bonded FRP sheets suitable for design applications is presented and its limitations discussed. (C) 2014 American Society of Civil Engineers.

引用

页数：10

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