Towards improved floor spectra estimates for seismic design

Sullivan, Timothy J.; Calvi, Paolo M.; Nascimbene, Roberto

doi:10.12989/eas.2013.4.1.109

Cited by 126 publications

(108 citation statements)

References 4 publications

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“…Excitation at roof level is strongly influenced by the dynamic response of the supporting structure Base excitation depends on the local seismic hazard and site conditions linear time-history analyses by Sullivan et al [8] using accelerograms spectrum-compatible with the EC8 spectrum constructed at a PGA of 0.2g. The spectra are constructed for 2% and 5% elastic damping in order to illustrate how acceleration demands can be affected by the damping of the supported element.…”

Section: T (S) T (S) S a (G) S A (G) S A (G) T (S)mentioning

confidence: 99%

“…The spectra are constructed for 2% and 5% elastic damping in order to illustrate how acceleration demands can be affected by the damping of the supported element. Note that none of the code approaches appear to modify acceleration demands to account for differences in element damping even though it should certainly be expected that some non-structural elements will possess considerably different damping values than others [8]. From the comparison provided in Figure 3 it is apparent that the elastic damping of the non-structural element has a very significant influence on the peak acceleration demands and should be considered in seismic assessment.…”

Section: T (S) T (S) S a (G) S A (G) S A (G) T (S)mentioning

confidence: 99%

“…Any alternative means of predicting acceleration spectra at various levels of a structure should recognize the following points (discussed in Sullivan et al [8]):…”

Section: Conceptual Considerationsmentioning

confidence: 99%

“…This implies that an acceleration spectrum recorded at the roof of a building is likely to be very different from that at the base of the building, as illustrated in Figure 2. This paper demonstrates how a recently proposed procedure for the estimation of floor spectra [8] can be used to provide improved estimates of roof-level acceleration demands in single-storey buildings. …”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Estimating Roof-Level Acceleration Spectra for Single Storey Buildings

Sullivan

Calvi

Welch³

2014

Proceedings of the 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Section: T (S) T (S) S a (G) S A (G) S A (G) T (S)mentioning

confidence: 99%

Section: T (S) T (S) S a (G) S A (G) S A (G) T (S)mentioning

confidence: 99%

“…Any alternative means of predicting acceleration spectra at various levels of a structure should recognize the following points (discussed in Sullivan et al [8]):…”

Section: Conceptual Considerationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Estimating Roof-Level Acceleration Spectra for Single Storey Buildings

Sullivan

Calvi

Welch³

2014

Proceedings of the 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Various research efforts have been made to provide simplified but accurate means of estimating floor response spectra both for elastic and for inelastic load-bearing structures, such as [1,22,29].…”

Section: Introductionmentioning

confidence: 99%

Peak floor acceleration demand prediction based on response spectrum analysis of various sophistication

Moschen

Adam

2016

Acta Mech

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This paper addresses the prediction of the median peak floor total acceleration (PFA) demand in spatial elastic structures subjected to seismic excitation. The prediction is based on various response spectrum methods of different degrees of sophistication. Beginning with a recently presented complete-quadraticcombination (CQC) rule for PFA demands, several approximations and simplifications concerning the correlation between modal contributions, peak factors, and cross-spectral moments are discussed, leading to the proposed modified modal combination rules. On several earthquake-excited multi-story spatial generic frame structures, the accuracy of the considered rules is assessed. The outcomes of response history analysis serves as benchmark solution. The results show that the modified CQC rules are simple in practical application and lead to reliable estimations of the median PFA demand of spatial structures with negligible loss of accuracy if peak factors are considered.

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Effect of strong ground motion duration on the expected peak values of floor response spectra in elastic buildings

Kaneko

2019

Japan Architectural Review

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Nonstructural components (eg, suspended ceilings, equipment, and piping systems) resonate with buildings and could suffer severe damage during strong earthquakes. The aim of the present study is to evaluate resonance properties based on the duration of ground motions for elastic nonstructural components. First, it is theoretically shown that the value of the dynamic amplification ratio (DAR) of nonstructural components can be bounded to a certain domain according to the extent of structural damping. Second, we propose a direct method for evaluating the expected value of the DAR, which does not require a time‐history analysis, using distinct dimensionless values related to structural properties and earthquake ground motions. Finally, the proposed estimation method is statistically verified based on time‐history analysis using thousands of recorded ground motions.

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Towards improved floor spectra estimates for seismic design

Cited by 126 publications

References 4 publications

Estimating Roof-Level Acceleration Spectra for Single Storey Buildings

Estimating Roof-Level Acceleration Spectra for Single Storey Buildings

Peak floor acceleration demand prediction based on response spectrum analysis of various sophistication

Effect of strong ground motion duration on the expected peak values of floor response spectra in elastic buildings

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