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Shock and Vibration
Volume 2017 (2017), Article ID 5830124, 7 pages
Research Article

Source Parameter Estimation Method for Assessment of Structural Resiliencies

School of Civil Engineering, Beijing Jiaotong University, Beijing, China

Correspondence should be addressed to Boming Zhao

Received 21 July 2017; Accepted 1 October 2017; Published 30 October 2017

Academic Editor: Xing Ma

Copyright © 2017 Zijun Wang and Boming Zhao. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Assessing structural integrity and sustainability during natural hazards, for instance, strong earthquakes, is an effective way to reduce or even avoid large losses of life and property damage. With the established vulnerability relationships between source parameter and building damage, the seismic resilience of structures can be obtained after the source parameter is estimated in the early stage of an earthquake. For this purpose, we propose a method that employs the wave displacement parameter to estimate earthquake magnitude in real time to quick assess the structural resiliencies. By selecting period and amplitude parameter as comparisons, the magnitude estimation formulas are derived, respectively, where the proposed P wave displacement parameter method is of the highest precision. Through the evolutionary estimation of the P wave displacement parameter as a function of the time window used, we show that the existing regression relationships can be extended to the large earthquake. Therefore, this paper provides a quick earthquake magnitude estimation method for the establishment of a more reasonable and accurate resilience assessment system for structures.