DYNAMIC LOADING TEST ON RC FRAME RETROFITTED BY OUTER CES FRAME
The authors have proposed a seismic retrofitting method by attaching outer CES frames consisting of only steel and fiber reinforced concrete to an existing RC building. This method has more advantage compared with previous proposed other seismic retrofitting methods that is not necessary to install the braces because CES frames in themselves have excellent seismic performance. The purpose of this study is to investigate the seismic performance of RC frames retrofitted with CES frames, particularly to examine the behavior of unified sections of the existing RC and the strengthening CES. The dynamic load testing was carried out on four frame specimens, one RC frame and three retrofitted RC frames, with the experimental parameter of the amount of anchors used to connect the CES members to the RC members. This paper outlines the experimental program. The test results showed that the seismic retrofitting method by attaching the CES member to RC member improved the seismic performance of the frames. It was observed that there is almost no gap at the connection between CES member and RC member until large deformation. In addition, the ultimate strength of the retrofitted frame from the experimental results showed a good agreement with the calculated ultimate strength.
Concrete encased steel Fiber reinforced concrete External seismic retrofit Retrofitted RC frame Dynamic loading test
Takashi TAGUCHI Hiroshi KURAMOTO Tomoya MATSUI Takashi KAMIYA
Head Research Engineer, Tech. Res. Inst. for Earthquake Eng., Yahagi Const. Co., Ltd., Nagoya, Japan Professor, Div. of Global Architecture, Graduate School of Eng, Osaka Univ., Suita, Japan Assistant Professor, Dept. of Architecture & Civil Engineering, Toyohashi Univ. Tech., Toyohashi, Ja Sub Manager, Tech. Res. Inst. for Earthquake Eng., Yahagi Const. Co., Ltd., Nagoya, Japan
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）