Emergency Retrofit for Damaged RC Columns by Fiber Belts Prestressing and Plywoods

被引：0
|
作者：
Kyoda, N. [1 ]
Yamakawa, T. [1 ]
Nakada, K. [1 ]
Javadi, P. [1 ]
Nagahama, A. [2 ]
机构：
[1] Univ Ryukyus, Okinawa, Japan
[2] Daiwa House Ind Co Ltd, Nara, Japan
来源：
ADVANCES IN FRP COMPOSITES IN CIVIL ENGINEERING | 2010年
基金：
日本学术振兴会;
关键词：
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
After a strong earthquake attacks to a building, damaged structural members such as columns should have sufficient vertical resistance to sustain gravity loads to rescue residents or move equipments. The rehabilitation of a damaged building is called "Emergency Seismic Retrofit" hereafter. Previous experimental investigations have demonstrated by utilizing high-strength steel bar prestressing or aramid fiber belt prestressing, seismic performances of shear-damaged RC columns significantly improved. In following the previous investigations on emergency seismic retrofit of shear-damaged RC columns, in this study a new approach is proposed regarding economic consideration and easy operation. In this method the polypropylene belts are used instead of aramid fiber belts, plywoods instead of steel plates, and customarily-fabricated ratchet buckles instead of specially-fabricated couplers. Experimental results exhibited efficiency of the pro-posed approach for emergency seismic retrofit of shear-damaged RC columns.
引用
收藏
页码：801 / +
页数：3
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