Effect of seismic retrofit of bridges on transportation networks

被引：0

作者：

Masanobu Shinozuka

Yuko Murachi

Michal J.Orlikowski

机构：

[1] Department of Civil and Environmental Engineering,Princeton University,USA Undergraduate Student.

[2] Department of Civil and Environmental Engineering,University of California,Irvine,USA Distinguished Professor and Chair

[3] Department of Civil and Environmental Engineering,University of California,Irvine,USA Research Associate

来源：

Earthquake Engineering and Engineering Vibration | 2003年 / 2卷 / 02期

关键词：

fragility curves; seismic retrofit; probabilistic model; bridges; transportation networks; drivers delay; performance index; Northridge earthquake;

D O I：

暂无

中图分类号：

P315 [地震学];

学科分类号：

070801 ;

摘要：

The objective of this research is to determine the effect earthquakes have on the performance of transportationnetwork systems.To do this,bridge fragility curves,expressed as a function of peak ground acceleration(PGA)and peakground velocity(PGV),were developed.Network damage was evaluated under the 1994 Northridge earthquake and scenarioearthquakes.A probabilistic model was developed to determine the effect of repair of bridge damage on the improvementof the network performance as days passed after the event.As an example,the system performance degradation measuredin terms of an index,"Drivers Delay,"is calculated for the Los Angeles area transportation system,and losses due to DriversDelay with and without retrofit were estimated.

引用

页码：169 / 179

页数：11

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