Seismic Damage Investigation and Seismic Performance Study of Lushan Middle School Gymnasium
Publication: Journal of Performance of Constructed Facilities
Volume 34, Issue 3
Abstract
The seismic behavior of Lushan Middle School gymnasium, whose grid structure was heavily damaged during the Lushan earthquake in 2013, is simulated by three finite-element models. In field observations, 72 buckled members were found, but no tensile failure or obvious tensile yield was found. The results of each model are analyzed by comparing the simulated damage with field observations. The results suggest that Model A shows the best analysis results, followed by Model C, and finally Model B. Causes of seismic damage not only the uneven stiffness of the structure’s support columns caused by ring beams leads to redistribution of the internal forces, but the dynamic amplification effect of the lower frames also intensified the damage to the grid structure. Therefore, the authors recommend that the code should distinguish between pure grid structures and grid structures supported by RC frames and introduce design models that integrate the two structures and include a coupling effect between them. In addition, the integrated model should be used in a seismic check of grid structures with concrete supporting structures.
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Data Availability Statement
All data, models, or code used during the study are available from the corresponding author by request (list items): architectural and structural designs for Lushan Middle School gymnasium, additional pictures of observed seismic damage for Lushan Middle School gymnasium, three finite-element models, and acceleration records obtained from 10 ground-motion stations.
Acknowledgments
This work was financially supported by the Scientific Research Fund of the Institute of Engineering Mechanics, CEA (2016A06), the National Key Research and Development Program (2018YFC1504400), the National Natural Science Foundation of China (11802002), Anhui Provincial Natural Science Foundation (1608085ME115), and the Natural Science Foundation of the Education Department of Anhui Province (RD17100030).
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Published In
Journal of Performance of Constructed Facilities
Volume 34 • Issue 3 • June 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Apr 2, 2019
Accepted: Nov 6, 2019
Published online: Apr 8, 2020
Published in print: Jun 1, 2020
Discussion open until: Sep 8, 2020
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