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W. Phillip Yen （美國國家公路聯(lián)邦總署，華盛頓，美國）
[摘要] 本文通過一系列全面綜合的抗震研究項目，簡要介紹了美國在交通結(jié)構(gòu)物的抗震防護領(lǐng)域取得的研究進展。這個項目由1991年的交通權(quán)益法案( TEA)啟動，歷經(jīng)三個交通權(quán)益法案(TEA)時代，研究任務(wù)的投入累計達3600萬美元。項目重點關(guān)注三個基本問題：第一，適用于所有新建公路項目的抗震設(shè)計最新規(guī)范；第二，適用于所有現(xiàn)存公路建設(shè)項目的抗震加固手冊；第三，啟動系統(tǒng)風(fēng)險分析項目，評估運用網(wǎng)絡(luò)系統(tǒng)方法設(shè)計的道路系統(tǒng)的地震損失。良好的預(yù)防措施是減少或規(guī)避公路設(shè)施地震損失最重要的因素。
[關(guān)鍵詞] 抗震設(shè)計；橋梁工程；抗震加固；抗震研究；地震損失評估
中圖分類號：TU997 文獻標識碼：A 文章編號：1002-848X(2012) Sl-0009-05Earthquake hazard mitigation of transportation structures
W. Phillip Yen
( Federal Highway Administration, Washington D C, USA )Abstract: It is to briefly introduce the efforts in the US in earthquake hazard mitigation of transportaUon structures through a thorough and comprehensive seismic research program. This program initiated in the 1991's Transportation Equity Acts (TEA) and has been working through three TEAs and funded more than $36 millions in research tasks. The program focuses on three fundamental issues, which includes:1)a state-of-the-art's specifications in seisnuc design for all new lughway constructions;2)a state-of-the-practice'8 manuals in seisrmc retrofitting for all existing highway constructions; 3)a systematic risk analysis program to estimate the earthquake loss of the roadway system using network system approach. The most important factor to reduce or mitigate the earthquake loss of the lughway infrastructure is through a well preparedness, including those above three items.
Keywords: earthquake design; bridge engineering; seismic retrofitting; seisnuc research; earthquake loss estimations參考文獻
[ 1 ] AASHTO. Bridge seismic design guide specifications [S].
[ 2 ] FHWA. Seismic retrofitting manual for highway structures-part I Mdges [M]. FHWA-HRT-06-032, Mclean, VA.
[ 3 ] REDAR,S 2: Methodology and software for seisnuc risk analysis of highway systems [M]. MCEER Publication in 2006.
