AN EXPERIMENTAL STUDY OF REPAIR AND STRENGTHENING OF EARTHQUAKE DAMAGED BRICK ARCH
The masonry wall with arch opening often gets damage during earthquake. In this study four strengthening methods for improving the seismic resistant ability of this problem are tested. These methods are developed under the condition that the original form is not changed. In method 1, a thin stainless steel strap is imbedded into the bottom face of the arch. In method 2, nine thin stainless steel straps with various lengths are imbedded into the brick joints horizontally. In method 3, two thin stainless steel straps are imbedded along the semi-circular joints of the arch. In method 4, eight thin stainless Z shape pieces are planted along the horizontal and vertical joints of often found damaged area. Totally, five specimens are manufactured and cyclic horizontal loading is applied. From these tests, the earthquake-resistant performance including damage mode, hysteretic loop, energy absorption and ultimate load are compared and discussed. Furthermore, the strengthening effect of post-earthquake strengthening is discussed for strengthening method 1. According to the test in the four strengthening methods, method 1 obtains a greatest value of ultimate loading and good stiffness however it has to cut a slot through bricks. In method 2 the loading resistance is not so high like method 1, but the original form is not interfered.
Masonry Brick Arch Retrofit Historic Building Strengthen
Chung-Hsien Shih Ja-Shian Chang Weichieh Wang
Graduated Student, Dept. of Architecture, Cheng Kung University, Tainan, Taiwan Professor, Dept. of Architecture, Cheng Kung University, Tainan, Taiwan Assistant Professor, Dept. of Architecture, Cheng Kung University, Tainan, Taiwan
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）