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Author:

Li, Lanping (Li, Lanping.) | Bu, Yizhi (Bu, Yizhi.) | Jia, Hongyu (Jia, Hongyu.) | Zheng, Shixiong (Zheng, Shixiong.) | Zhang, Deyi (Zhang, Deyi.) | Bi, Kaiming (Bi, Kaiming.)

Indexed by:

Scopus SCIE

Abstract:

To overcome the difficulty of performing multi-point response spectrum analysis for engineering structures under spatially varying ground motions (SVGM) using the general finite element code such as ANSYS, an approach has been developed by improving the modelling of the input ground motions in the spectral analysis. Based on the stochastic vibration analyses, the cross-power spectral density (c-PSD) matrix is adopted to model the stationary SVGM. The design response spectra are converted into the corresponding PSD model with appropriate coherency functions and apparent wave velocities. Then elements of c-PSD matrix are summarized in the row and the PSD matrix is transformed into the response spectra for a general spectral analysis. A long-span high-pier bridge under multiple support excitations is analyzed using the proposed approach considering the incoherence, wave-passage and site-response effects. The proposed approach is deemed to be an efficient numerical method that can be used for seismic analysis of large engineering structures under SVGM.

Keyword:

multiple support excitation seismic patial variability tochastic vibration analysis high-pier railway bridge response spectral analysis

Author Community:

  • [ 1 ] [Li, Lanping]Southwest Jiaotong Univ, Dept Civil Engn, Chengdu 610031, Sichuan, Peoples R China
  • [ 2 ] [Bu, Yizhi]Southwest Jiaotong Univ, Dept Civil Engn, Chengdu 610031, Sichuan, Peoples R China
  • [ 3 ] [Jia, Hongyu]Southwest Jiaotong Univ, Dept Civil Engn, Chengdu 610031, Sichuan, Peoples R China
  • [ 4 ] [Zheng, Shixiong]Southwest Jiaotong Univ, Dept Civil Engn, Chengdu 610031, Sichuan, Peoples R China
  • [ 5 ] [Zhang, Deyi]Southwest Jiaotong Univ, Dept Civil Engn, Chengdu 610031, Sichuan, Peoples R China
  • [ 6 ] [Jia, Hongyu]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China
  • [ 7 ] [Bi, Kaiming]Curtin Univ, Sch Civil Engn & Mech, Ctr Infrastruct Monitoring & Protect, Kent St, Bentley, WA 6102, Australia

Reprint Author's Address:

  • [Jia, Hongyu]Southwest Jiaotong Univ, Dept Civil Engn, Chengdu 610031, Sichuan, Peoples R China;;[Jia, Hongyu]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China

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Source :

EARTHQUAKES AND STRUCTURES

ISSN: 2092-7614

Year: 2017

Issue: 2

Volume: 13

Page: 193-200

1 . 5 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:165

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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