Seismic Performance Experimental Research of Added Ring-Beams and Tie-Columns Masonry Structure

Abstract

To research seismic performance of the strengthened masonry structure, the two stories masonry structure housing model with added ring-beams and tie-columns was designed and made in this paper. By inputting acceleration time-history curve of rarely earthquake of Intensity 7, the seismic response of acceleration, speed, restoring force and displacement of the strengthened masonry structure were obtained through the pseudo-dynamic test when rarely earthquake of Intensity 7 occurred. The reinforcement strain time-history curves of tie-columns root and beam-column junction were tested, then the restoring force-displacement curve of the structure was obtained. By method of pseudo-static test, the strengthened masonry structure of the ultimate limit bearing capacity, limit deformation were obtained, the cracking part and developing process were observed. Finally, comparing the data in this test with that test result of the ring-beams and tie-columns masonry structure designed based on current codes; analyzed seismic performance of the strengthened masonry structure when rarely earthquake of Intensity 7 occurred.