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http://dx.doi.org/10.4334/JKCI.2009.21.2.129

An Experimental Study on Retrofit Effect of Shear Wall with Opening Using Steel Bar or Steel Plate  

Choi, Youn-Cheul (Dept. of Architectural Environmental Engineering and Building Service, Chungwoon University)
Bae, Baek-Il (Dept. of Architectural Engineering, Hanyang University)
Choi, Chang-Sik (Dept. of Architectural Engineering, Hanyang University)
Choi, Hyun-Ki (Dept. of Architectural Engineering, Hanyang University)
Publication Information
Journal of the Korea Concrete Institute / v.21, no.2, 2009 , pp. 129-138 More about this Journal
Abstract
Recently, for more demands of the economical benefits and environmental conservation, many engineers prefer to choose remodeling. Artificial openings are often unavoidable to make house wider, which will degrade wall strength and stiffness by losing effective wall section that may cause the weakening of system capacity. In these cases the damaged shear walls need to be retrofitted by additional materials or members. In this research, four specimens were tested to investigate the capacity of the damaged wall and the retrofitted wall. The artificially damaged wall was prestressed by tendons to improve the shear capacity of the wall, and the other walls were retrofitted by adding steel plate at the surface for the same purpose. Consequently, these retrofitted walls had improved capacity and stiffness in both shear and flexure. Especially, the wall with steel plate showed ductile behavior after ultimate load and the prestressed wall had greater stiffness than the unstrengthened prototype wall.
Keywords
shear wall; remodeling; opening; retrofit; steel bar;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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