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Shaking table tests and dynamic analyses of masonry wall buildings with frame-shear walls at lower stories

Xiong Lihong1,2, David Xiong3, Wu Ruifeng4 and Xia Jingqian1

  1. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
  2. Key Lab of Urban Security & Disaster Engineering MOE, Beijing University of Technology, Beijing 100022, China
  3. Arup Engineering Consultant Ltd, Hong Kong
  4. Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

Abstract: This paper describes shaking table tests of three eight-story building models: all are masonry structures in the upper stories, with or without frame-shear walls of one- or two- stories at the bottom. The test results of damage characteristics and seismic responses are provided and compared. Then, nonlinear response analyses are conducted to examine the reliability of the dynamic analysis. Finally, many nonlinear response analyses are performed and it is concluded that for relatively hard sites under a certain lateral stiffness ratio (i.e., the ratio of the stiffness of the lowest upper masonry story to that of the frame-shear wall story), the masonry structure with one-story frame-shear wall at the bottom performs better than a structure built entirely of masonry, and a masonry structure with frame-shear wall of two stories performs better than with one-story frame-shear wall. In relatively soft soil conditions, all three structures have similar performane. In addition, some suggestions that could be helpful for design of masonry structures with ground story of frame-shear wall structure in seismic intensity region VII, such as the appropriate lateral stiffness ratio, shear force increase factor of the frame-shear wall story, and permissible maximum height of the building, are proposed.

Keywords: masonry structure; soft story; seismic performance; shaking table test; nonlinear time history analysis

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Copyright© 2009 IEM. Journal of Earthquake Engineering and Engineering Vibration. All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as described below, without written permission from the Publisher. Copying of articles is not permitted except for personal and internal use, to the extent permitted by national copyright law, or under the terms of a license issued by the National Reproduction Rights Organization of China.