Conditional Mean Spectrum: Tool for Ground-Motion Selection

Baker, Jack W.

doi:10.1061/(asce)st.1943-541x.0000215

Cited by 813 publications

(642 citation statements)

References 16 publications

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“…Therefore, a broad class of buildings located in Century City can be assessed (or designed, respectively) by this record set without conducting record selection with respect to the fundamental period of every individual structure seperately. This record selection procedure can be seen as an alternative to the existing body of conditional mean spectrum (CMS) methods [17,18]. Figure 6 shows the target spectra (bold black lines), the 92 individual response spectra (gray lines), and the corresponding statistical quantities (thin black lines) of the Century record set, which will be used for analyses in the remainder of this paper.…”

Section: Normalized Peak Acceleration Demand For the Century City Recmentioning

confidence: 99%

Simplified Prediction of Peak Floor Accelerations in Inelastic Wall Structures

Moschen¹,

Adam²,

Vamvatsikos³

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Abstract. In this paper a robust method for simplified prediction of peak floor acceleration (PFA) demands in inelastic structural walls is established. In structural walls the plastic mechanism is usually confined to the domain right above the foundation. It is, thus, reasonable to assume that in wall structures only the response contribution related to the fundamental mode is significantly affected by inelastic deformations. Based on this assumption, a readily developed complete-quadratic-combination (CQC) modal superposition rule for elastic median PFA demand prediction is specialized to inelastic structural walls. In this approach, only the first mode contribution on the PFA demand is affected by inelastic deformations, related to the lateral strength reduction factor identified from the outcomes of a first mode pushover analysis. Since the response contribution of the higher modes is assumed to be elastic, for these modes the relations derived for unlimited elastic structural behavior enter the specialized response spectrum method. Application on a 12-story shear wall shows the accuracy of the predicted median PFA demands derived by the proposed procedure.

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Section: Normalized Peak Acceleration Demand For the Century City Recmentioning

confidence: 99%

Simplified Prediction of Peak Floor Accelerations in Inelastic Wall Structures

Moschen¹,

Adam²,

Vamvatsikos³

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…A set of 40 ground motions (Set 1), selected to match the conditional spectrum [11,12,13] is used in the analyses. For the final case, a second set of 40 ground motions (Set 2), selected assuming different site characteristics, is used.…”

Section: Factors Influencing Dispersionmentioning

confidence: 99%

Record-to-Record Variability in the Seismic Response of Rc Walls Buildings Subjected to Ground Motions Matched to the Conditional Spectrum

Fox¹,

Sullivan²

2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Four sets of 30 ground motions ( Figure 3) were selected from PEER Next Generation Attenuation (NGA) strong-motion database [13,14]. Ground motions of the first three sets were selected according to conditional spectrum approach [6]. The conditioning periods corresponded to the first three periods (hereinafter referred as set CS T 1 , CS T 2 and CS T 3 ).…”

Section: Seismic Hazard and The Sets Of Ground Motions For Dynamic Anmentioning

confidence: 99%

“…For this purpose demand hazard analysis [3][4][5] was performed for an example of an 8-storey building, which was analyzed for one direction of seismic action. Different sets of ground motions were selected using conditional spectrum (CS) approach [6] in order to study whether the conditioning period has an impact on the return period of shear forces. The three conditioning periods corresponded to the first three periods of the investigated 8-storey building.…”

Section: Introductionmentioning

confidence: 99%