Evaluatin of the seismic performance for transportation systems

众所周知，交通运输系统的抗震性能对震后应急管理起着至关重要的作用。它需要从物理和功能两个角度进行评估。本研究涉及的脆弱性函数可用于震后交通系统的管理，其中空间和时间因素都是相关的。本文提出了一种综合考虑物理和功能因素的地震易损性函数评价方法，并对阪神高速公路进行了实例分析。描述1995年小古肯-南部地震下公路系统物理和功能特征的基本数据由阪神高速公路公共合作公司提供。本研究(1)构建了基于gis的公路桥震害数据库，开发了公路桥地震易损性函数；(2)总结了恢复重建过程，建立了桥梁重建的易损性函数；(3)建立了灾害条件下OD值的估算方法。此外，为评价地震后公路系统恢复情况，(4)建立了恢复重建工程过程数据库，并在此基础上按桥梁类型计算恢复时间。本研究中开发的功能评估了公路系统抗震性能的物理和功能方面，并用于估计地震造成的地震损失。

It is well known that the seismic performance of transportation systems plays key rolls for the post-earthquake emergency management. It needs to be evaluated from both physical and functional view points. This research deals with the fragility functions that can be used for post-earthquake management of transportation systems where both space and time factors are relevant.This research developed a methodology for evaluating the seismic fragility function that takes both physical and functional aspects into account, and carried out an example analysis for the Hanshin expressway. The basic data that describe physical and functional characteristics of the highway system under the 1995 Hyogoken-Nanbu earthquake was provided by Hanshin Expressway Public Cooperation. This research (1) constructed the GIS-based damage database and developed the seismic fragility functions for the highway bridges ; (2) summarized the recovery and reconstruction process and developed the fragility function of the bridge reconstruction ; (3) established a methodology for estimating OD values under the disaster condition.In addition, for evaluating the post-earthquake highway system recovery, (4) the database for the process of the recovery and reconstruction works was developed, and based on that, the recovery time was calculated by bridge type.The functions developed in this study evaluate both physical and functional aspects of the seismic performance for highway systems and are used to demonstrate for estimating seismic losses due to earthquakes.