Seismic response analysis of structural system subjected to multiple support excitation

Wu, R. W.; Hussain, Fida; Liu, L.K.

doi:10.1016/0029-5493(78)90070-5

Cited by 21 publications

(7 citation statements)

References 1 publication

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“…Wu et al [14] presented a seismic analysis of multiple supporting structural systems that undergo nonuniform excitations. The time history method was used for this analytical study.…”

Section: Analytical Studiesmentioning

confidence: 99%

Dynamic response of long-span bridges subjected to nonuniform excitation: a state-of-the-art review

et al. 2019

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In recent years, considerable attention has been paid to the research of dynamic response of long-span bridges with particular emphasis on seismic behavior. Cable-stayed and suspension bridges are the most popular types. Since long-span bridges have multi-supports and extreme lengths, due to the spatial variation effects, the ground motions at different supports might be non-uniform. A state-of-the-art update review of the response of long-span bridges subjected to non-uniform excitation is presented. The review mainly focuses on the theoretical aspects of non-uniform excitation, numerical studies, and experimental studies to verify some of the theoretical findings. In this paper, a review of the use of shake-table in experimental studies of long-span bridges is also presented. The non-uniform cases considered include a time delay with the same support excitations, multiple support excitations, and the combination of the first and the later. The results are discussed and summarized in comparison to the cases of uniform support excitation.

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“…Wu et al [14] presented a seismic analysis of multiple supporting structural systems that undergo nonuniform excitations. The time history method was used for this analytical study.…”

Section: Analytical Studiesmentioning

confidence: 99%

Dynamic response of long-span bridges subjected to nonuniform excitation: a state-of-the-art review

et al. 2019

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“…Many studies have reported seismic analysis for a piping system subjected to multiple support excitation. Wu et al (1978), Leimbach and Sterkel (1980) and Subudhi and Bezler (1983) applied the multiple support excitation analysis techniques to a simple piping system using multi point response spectrum (MPRS) and time history (TH) method. They compared those with single point response spectrum (SPRS) method, and addressed that the multiple support excitation analysis provides better response since the phase and amplitude relationship between supports are retained.…”

Section: Introductionmentioning

confidence: 99%

Seismic response analysis of a piping system subjected to multiple support excitations in a base isolated NPP building

Surh

Ryu

Park

et al. 2015

Nuclear Engineering and Design

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“…This response spectrum is given as input at various support points to get a conservative response. This procedure was improved by Amin et al [18], Lin [19], Shaw [20], Vashi [21], Thailer [22], Wu et al [23], and Leimbach and Schmidt [24] who proposed multiple response spectrum methods based on the use of di erent oor response spectra at di erent support points. Singh [25; 26], Asfura and Der Kiureghian [27], Burdisso and Singh [28], Saudy et al [29], and Rao [17] proposed methods to include the e ects of dynamic interaction between the primary and secondary systems.…”

Section: Introductionmentioning

confidence: 99%

A response‐based decoupling criterion for multiply‐supported secondary systems

Chaudhuri

Gupta

2002

Earthq Engng Struct Dyn

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SUMMARYIt is often infeasible to carry out coupled analyses of multiply-supported secondary systems for earthquake excitations. 'Approximate' decoupled analyses are then resorted to, unless the response errors due to those are signiÿcantly high. This study proposes a decoupling criterion to identify such cases where these errors are likely to be larger than an acceptable level. The proposed criterion is based on the errors in the primary system response due to decoupling and has been obtained by assuming (i) the input excitation to be an ideal white noise process, (ii) cross-modal correlation to be negligible, and (iii) the combined system to be classically damped. It uses the modal properties of the undamped combined system, and therefore, a perturbation approach has been formulated to determine the combined system properties in case of light to moderately heavy secondary systems. A numerical study has been carried out to illustrate the accuracy achieved with the proposed perturbation formulation. The proposed decoupling criterion has been validated with the help of two example primary-secondary systems and four example excitation processes.

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Seismic response analysis of structural system subjected to multiple support excitation

Cited by 21 publications

References 1 publication

Dynamic response of long-span bridges subjected to nonuniform excitation: a state-of-the-art review

Dynamic response of long-span bridges subjected to nonuniform excitation: a state-of-the-art review

Seismic response analysis of a piping system subjected to multiple support excitations in a base isolated NPP building

A response‐based decoupling criterion for multiply‐supported secondary systems

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