To read the full version of this content please select one of the options below:

Investigation of the relationship between intensity measures and engineering demand parameters of cable-stayed bridges using intra-plate earthquakes

Jin-Hai He (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China)
Yu-Tao Pang (Faculty of Engineering, China University of Geosciences, Wuhan, China)
Xinzhi Dang (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China)
Wan-Cheng Yuan (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China)

Engineering Computations

ISSN: 0264-4401

Article publication date: 18 September 2020

Issue publication date: 17 June 2021

168

Abstract

Purpose

The purpose of the study is to investigate and reveal this relationship of various engineering demand parameters (EDPs) of this structural type and intensity measures (IMs) under intra-plate earthquakes.

Design/methodology/approach

The nonlinear finite element model used was calibrated first to the existing results of the shaking table test to verify the modeling technique.

Findings

This paper investigated the relationship between intensity measures and various engineering demand parameters of cable-stayed bridges using intra-plate earthquakes. The correlation analysis and Pearson coefficient are used to study the correlation between EDPs and IMs. The results showed that peak ground velocity (PGV)/peak ground acceleration, peak ground displacement and root-mean-square of displacement showed weak correlation with IMs. PGV, sustained maximum velocity, a peak value of spectral velocity, A95 parameter, Housner intensity and spectral acceleration at the fundamental period, the spectral velocity at the fundamental period and spectral displacement at the fundamental period were determined to be better predictors for various EDPs.

Originality/value

This paper investigated the correlation between the intensity measures of intra-plate earthquakes with the seismic responses of a typical long-span cable-stayed bridge in China. The nonlinear finite element model used was calibrated to the existing results of the shaking table test to verify the modeling technique. In total, 104 selected ground motions were applied to the calibrated model, and the responses of various components of the bridge were obtained. This study proposed PGV as the optimal IM.

Keywords

Acknowledgements

This research was supported by the Ministry of Science and Technology of China under Grant No. SLDRCE19-B-19; The National Natural Science Foundation of China under Grant No. 51778471, 51978512; and Transportation science and technology plan of Shandong province (2017B75).

Citation

He, J.-H., Pang, Y.-T., Dang, X. and Yuan, W.-C. (2021), "Investigation of the relationship between intensity measures and engineering demand parameters of cable-stayed bridges using intra-plate earthquakes", Engineering Computations, Vol. 38 No. 4, pp. 1920-1932. https://doi.org/10.1108/EC-05-2020-0255

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

Related articles