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［摘要］首先探討了地震對(duì)現(xiàn)代鋼結(jié)構(gòu)建筑的破壞情況，主要介紹了1995年兵庫(kù)縣南部地震的震害情況。研究了地震作用對(duì)梁柱節(jié)點(diǎn)、柱、梁、支撐以及柱腳的破壞。對(duì)非結(jié)構(gòu)構(gòu)件在地震作用下的破壞以及結(jié)構(gòu)對(duì)長(zhǎng)周期地震的響應(yīng)進(jìn)行了研究。其次，列出了鋼結(jié)構(gòu)抗震性能提高和抗震評(píng)估的方法。對(duì)改進(jìn)的梁柱節(jié)點(diǎn)形式，例如改進(jìn)扇形開(kāi)孔形狀和減小梁截面等進(jìn)行了研究并建議在實(shí)際工程中采用。介紹并探討了約束屈曲支撐和阻尼器的應(yīng)用。最后，列出了對(duì)既有鋼結(jié)構(gòu)建筑抗震性能的評(píng)估方法。
［關(guān)鍵詞］鋼結(jié)構(gòu)；抗震性能；地震
中圖分類(lèi)號(hào)：TU391，TU352.11 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)12-0020-04
Damage of steel buildings during earthquakes and their seismic upgrading
Hiroshi Tagawa(Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8603, Japan)
Abstract:This paper firstly describes damage to modern steel buildings observed mainly in the 1995 Hyogo-ken Nanbu Earthquake. Damages to the beam-to-column connections, columns, beams, braces and column-bases were discussed. Problems such as damage to non-structural components and large response to the long-period earthquake were also described. Secondly, seismic upgrading methods and seismic evaluations for steel buildings were presented. Improved beam-to-column connections have been developed and recommended such as improved weld access hole shapes and reduced beam sections. The buckling-restrained braces and dampers were also presented and discussed. Finally, seismic capacity evaluation method was presented for existing steel buildings.
Keywords:steel structure；seismic performance；earthquake
作者簡(jiǎn)介：Hiroshi Tagawa ，名古屋大學(xué)建筑鋼結(jié)構(gòu)抗震研究室副教授，京都大學(xué)博士，Email: h.tagawa@nagoya-u.jp。
注：本文由同濟(jì)大學(xué)建筑工程系雷克、楊彬譯。
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