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Three dimensional temporal characteristics of ground motions and building responses in Wenchuan earthquake

Dai Junwu1, Wang Yanru1, Guan Qingsong1, Qi Xiaozhai1, Yang Xueshan1, Tong Mai2 and George C. Lee3

  1. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
  2. FEMA, Washington DC, USA
  3. MCEER, University at Buffalo, USA

Abstract: In this paper, analytical results from 3D temporal characteristics of the responses of an RC frame building subjected to both a large aftershock and the main shock of Wenchuan Ms8.0 earthquake are presented. The ground motion records from the main shock were obtained from three nearby stations. The acceleration records were analyzed in terms of instantaneous tangential acceleration aT, normal acceleration aN, Euclidean norm of acceleration vector |a|, velocity vector |v|, displacement vector |v|, temporal curvature κ, κt, and temporal torsion γ and γt. Results of the kinematic relationship between the above factors and some additional in depth information obtained from extensive analyses are provided and discussed.

Keywords: 3D temporal characteristics analyses; Wenchuan earthquake; RC frame structure; aftershock

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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.