Modified multi-support response spectrum analysis of structures with multiple supports under incoherent ground excitation

Jiyang Shen; Rui Li; Jun Shi; Guangchun Zhou

doi:10.3390/app9091744

Modified multi-support response spectrum analysis of structures with multiple supports under incoherent ground excitation

Jiyang Shen
, Rui Li
, Jun Shi^*
, Guangchun Zhou

^*Corresponding author for this work

Harbin Institute of Technology
China Seismological Bur.
School of Transportation Science and Engineering, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

This study develops a modified multi-support response spectrum (MSRS) method, in order to efficiently and accurately calculate the response of multi-support structures under incoherent ground motions. The modified MSRS method adopts three ancillary processes, constructing structural displacement vectors or constructing infinite stiffness members or increasing the degrees of freedom at structural supports. Then, the modified MSRS method is verified in a comparison with the existing MSRS method through a model of a five-span reinforced concrete continuous rigid frame bridge. Finally, the collective structural response spectrum, the structural power spectrum, and the simplified structural power spectrum are deduced from the equation of the motion taking ground motion displacements as the input, and validated through the same bridge model.

Original language	English
Article number	1744
Journal	Applied Sciences (Switzerland)
Volume	9
Issue number	9
DOIs	https://doi.org/10.3390/app9091744
State	Published - 1 May 2019
Externally published	Yes

Keywords

Incoherent ground motion
Multi-support structures
Power spectrum
Process
Response spectrum

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10.3390/app9091744

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title = "Modified multi-support response spectrum analysis of structures with multiple supports under incoherent ground excitation",

abstract = "This study develops a modified multi-support response spectrum (MSRS) method, in order to efficiently and accurately calculate the response of multi-support structures under incoherent ground motions. The modified MSRS method adopts three ancillary processes, constructing structural displacement vectors or constructing infinite stiffness members or increasing the degrees of freedom at structural supports. Then, the modified MSRS method is verified in a comparison with the existing MSRS method through a model of a five-span reinforced concrete continuous rigid frame bridge. Finally, the collective structural response spectrum, the structural power spectrum, and the simplified structural power spectrum are deduced from the equation of the motion taking ground motion displacements as the input, and validated through the same bridge model.",

keywords = "Incoherent ground motion, Multi-support structures, Power spectrum, Process, Response spectrum",

author = "Jiyang Shen and Rui Li and Jun Shi and Guangchun Zhou",

note = "Publisher Copyright: {\textcopyright} 2019 by the authors.",

year = "2019",

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doi = "10.3390/app9091744",

language = "英语",

volume = "9",

journal = "Applied Sciences (Switzerland)",

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T1 - Modified multi-support response spectrum analysis of structures with multiple supports under incoherent ground excitation

AU - Shen, Jiyang

AU - Li, Rui

AU - Shi, Jun

AU - Zhou, Guangchun

PY - 2019/5/1

Y1 - 2019/5/1

N2 - This study develops a modified multi-support response spectrum (MSRS) method, in order to efficiently and accurately calculate the response of multi-support structures under incoherent ground motions. The modified MSRS method adopts three ancillary processes, constructing structural displacement vectors or constructing infinite stiffness members or increasing the degrees of freedom at structural supports. Then, the modified MSRS method is verified in a comparison with the existing MSRS method through a model of a five-span reinforced concrete continuous rigid frame bridge. Finally, the collective structural response spectrum, the structural power spectrum, and the simplified structural power spectrum are deduced from the equation of the motion taking ground motion displacements as the input, and validated through the same bridge model.

AB - This study develops a modified multi-support response spectrum (MSRS) method, in order to efficiently and accurately calculate the response of multi-support structures under incoherent ground motions. The modified MSRS method adopts three ancillary processes, constructing structural displacement vectors or constructing infinite stiffness members or increasing the degrees of freedom at structural supports. Then, the modified MSRS method is verified in a comparison with the existing MSRS method through a model of a five-span reinforced concrete continuous rigid frame bridge. Finally, the collective structural response spectrum, the structural power spectrum, and the simplified structural power spectrum are deduced from the equation of the motion taking ground motion displacements as the input, and validated through the same bridge model.

KW - Incoherent ground motion

KW - Multi-support structures

KW - Power spectrum

KW - Process

KW - Response spectrum

UR - https://www.scopus.com/pages/publications/85067206711

U2 - 10.3390/app9091744

DO - 10.3390/app9091744

M3 - 文章

AN - SCOPUS:85067206711

SN - 2076-3417

VL - 9

JO - Applied Sciences (Switzerland)

JF - Applied Sciences (Switzerland)

IS - 9

M1 - 1744

ER -

Modified multi-support response spectrum analysis of structures with multiple supports under incoherent ground excitation

Abstract

Keywords

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