Influence of inelastic seismic response modeling on regional loss estimation

Steelman, Joshua S.; Hajjar, Jerome F.

doi:10.1016/j.engstruct.2009.07.026

Cited by 38 publications

(22 citation statements)

References 21 publications

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“…A single-parameter pinching model ( Figure 4) proposed by Steelman and Hajjar [21] is adopted to represent the pinching behavior subjected to cyclic loads. Five damage states, ranging from none, slight, and moderate, to extensive and complete damage, are considered, which are identical to the damage states defined by HAZUS.…”

Section: Parameter Determination For Backbone Curve Based On the Hazumentioning

confidence: 99%

Real-Time City-Scale Time-History Analysis and Its Application in Resilience-Oriented Earthquake Emergency Responses

Cheng

et al. 2019

Applied Sciences

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The resilience of cities has received worldwide attention. An accurate and rapid assessment of seismic damage, economic loss, and post-event repair time can provide an important reference for emergency rescue and post-earthquake recovery. Based on city-scale nonlinear time-history analysis (THA) and regional seismic loss prediction, a real-time city-scale time-history analysis method is proposed in this work. In this method, the actual ground motion records obtained from seismic stations are input into the building models of the earthquake-stricken area, and the nonlinear time-history analysis of these models is subsequently performed using a high-performance computing platform. The seismic damage to the buildings in the target region subjected to this earthquake is evaluated according to the analysis results. The economic loss and repair time of the earthquake-stricken areas are calculated using the engineering demand parameters obtained from the time-history analysis. A program named, "Real-time Earthquake Damage Assessment using City-scale Time-history analysis" ("RED-ACT" for short) was developed to automatically implement the above workflow. The method proposed in this work has been applied in many earthquake events, and provides a useful reference for scientific decision making for earthquake disaster relief, which is of great significance to enhancing the resilience of earthquake-stricken areas.

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Section: Parameter Determination For Backbone Curve Based On the Hazumentioning

confidence: 99%

Real-Time City-Scale Time-History Analysis and Its Application in Resilience-Oriented Earthquake Emergency Responses

Cheng

et al. 2019

Applied Sciences

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“…Xiong et al proposed a parameter determination and damage state determination method for the MDOF shear and flexural‐shear models. In their work, trilinear backbone curves are adopted for the interstory force‐displacement relationships (shown in Figure C), and a single parameter pinching model proposed by Steelman et al is adopted. Firstly, based on building inventory data (including height, area, story number and so forth), a simulated design procedure is conducted according to the corresponding design codes, and the fundamental period and the design point on the backbone curve can be obtained.…”

Section: Regional Scale Nonlinear Tha Of Buildings Considering Sci Efmentioning

confidence: 99%

A numerical coupling scheme for nonlinear time history analysis of buildings on a regional scale considering site‐city interaction effects

Tian

Wang

et al. 2018

Earthq Engng Struct Dyn

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Summary Seismic damage simulation of buildings on a regional scale is important for loss estimation and disaster mitigation of cities. However, the interaction among densely distributed buildings in a city and the site, ie, the “site‐city interaction (SCI) effects,” is often neglected in most regional simulations. Yet, many studies have found that the SCI effects are very important in regional simulations containing a large number of tall buildings and underground structures. Therefore, this work proposed a numerical coupling scheme for nonlinear time history analysis of buildings on a regional scale considering the SCI effects. In this study, multiple‐degree‐of‐freedom models are used to represent different buildings above the ground, while an open source spectral element program, SPEED, is used for simulating wave propagation in underlying soil layers. The proposed numerical scheme is firstly validated through a shaking table test. Then, a detailed discussion on the SCI effects in a 3D basin is performed. Finally, a nonlinear time history analysis of buildings on a regional scale is performed using the Tsinghua University campus in Beijing as a case study. The Tsinghua University campus case results show that the SCI effects will reduce the seismic responses of most buildings. However, some buildings will suffer much more severe damage when the SCI effects are considered, which may depend on the input motions, site characteristics, and building configurations.

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“…Various models with different levels of fidelities have been proposed for regional seismic damage simulation of buildings [2][3][4][5][6][7][8][9][10][11] .…”

Section: Introductionmentioning

confidence: 99%

A computational framework for regional seismic simulation of buildings with multiple fidelity models

Law

2016

Advances in Engineering Software

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Influence of inelastic seismic response modeling on regional loss estimation

Cited by 38 publications

References 21 publications

Real-Time City-Scale Time-History Analysis and Its Application in Resilience-Oriented Earthquake Emergency Responses

Real-Time City-Scale Time-History Analysis and Its Application in Resilience-Oriented Earthquake Emergency Responses

A numerical coupling scheme for nonlinear time history analysis of buildings on a regional scale considering site‐city interaction effects

A computational framework for regional seismic simulation of buildings with multiple fidelity models

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