On Conditional Simulation of Spatially Varying Rotational Ground Motion

被引：3

作者：

Rodda, Gopala Krishna ^{[1
]}

Basu, Dhiman ^{[2
]}

机构：

[1] Indian Inst Technol Gandhinagar, Dept Civil Engn, Ahmadabad, Gujarat, India

[2] IIT Gandhinagar, Civil Engn, VGEC Campus, Ahmadabad, Gujarat, India

来源：

JOURNAL OF EARTHQUAKE ENGINEERING | 2021年 / 25卷 / 06期

关键词：

Spatially varying rotational ground motion; apparent translational component; rotational coherence model; event-to-event variability of lagged coherency; Torsional and rocking motion;

D O I：

10.1080/13632469.2019.1573158

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Authors elsewhere reported two frameworks for conditional simulation of spatially varying translational ground motion, namely, (i) cross-spectral density (CSD) based framework and (ii) auto-spectral density (ASD) based framework. This paper investigates the applicability of both the frameworks for rotational components. Rotational components are extracted here using one of the Single Station Procedures reported in the literature. Spatially varying rotational ground motion for a future event is explored using a coherency model calibrated against a past event and an estimate of ASD of the seed (rotational) ground motion. Choice of representation of ASD is also investigated.

引用

页码：1191 / 1226

页数：36

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