Evaluatin of the seismic performance for transportation systems

众所周知，交通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。提出了一种综合考虑物理因素和功能因素的地震易损性评价方法，并以韩新高速公路为例进行了实例分析。描述1995年Hyogoken-Nanbu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)建立了基于地理信息系统的公路桥梁损伤数据库，开发了公路桥梁地震易损性函数：(2)总结了公路桥梁的恢复重建过程，开发了桥梁重建的易损性函数；(3)建立了灾害条件下公路系统OD值的估算方法；(4)建立了震后公路系统恢复重建过程数据库，并在此基础上按桥型计算了公路系统的恢复时间；开发了公路系统抗震性能的物理和功能评价函数，并用于地震损失评估。

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.