Seismic design and retrofit of bridges
Seismic design and retrofit of bridges
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DOI：
10.5459/bnzsee.33.3.265-285
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发表时间：
2000-09
期刊：
影响因子：
--
通讯作者：
K. Kawashima
中科院分区：
文献类型：
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作者：
K. Kawashima
1989年的洛马普里塔地震，1994年的北岭地震和1995年的兵库县南部地震对桥梁造成了重大破坏，这些事件以及地震引发的研究导致桥梁抗震设计和改造取得了重大进展。本文介绍了近年来这对欧共体、新西兰、日本和美国的设计理念和设计规范的影响，重点介绍了日本在1995年香港地震后的经验。描述了近场地面运动，线性/非线性静/动态响应分析，液化引起的侧向地面运动的处理。比较了EC-8、新西兰、日本、AASHTO和Caltrans/ATC-32规范的设计理念、设计力和延性要求。介绍了日本在南湖地震后对29000多根钢筋混凝土柱进行的抗震改造。
The 1989 Loma Prieta, 1994 Northridge and 1995 Hyogo-ken nanbu earthquakes caused major damage to bridges and these events together with the research triggered as a consequence of the earthquakes has led to significant advances in bridge seismic design and retrofitting. This paper presents how this has affected design philosophies and design codes in EC, New Zealand, Japan and USA in recent years, with emphasis on the Japanese experience in the aftermath of the 1995 H-k-n carthquake. Near field ground motion, linear/nonlinear static/dynamic response analyses, treatment of liquefaction-induced lateral ground movement are described. Comparison of design philosophy, design force and ductility requirements are compared among the EC-8, New Zealand, Japanese, AASHTO and Caltrans/ATC-32 codes. Seismic retrofitting which was conducted in Japan after the Hyogo-ken nanhu earthquake over 29,000 reinforced concrete columns is described.