- 摘 要
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肖建莊 陳 雋 張其云 李 杰
（同濟(jì)大學(xué) 上海 200092）[提要] 對異型柱框-桁架結(jié)構(gòu)模型進(jìn)行了強(qiáng)震和強(qiáng)余震兩個階段的模擬地震振動臺試驗，以模擬實際結(jié)構(gòu)經(jīng)常受到的主震、余震型地震作用的情況。分析了異型柱框-桁架結(jié)構(gòu)在強(qiáng)震作用下從彈性階段直接進(jìn)入彈塑性階段的動力反應(yīng)特點，揭示了余震階段地震反應(yīng)的擬線性性質(zhì)。驗證了異型柱框-桁架結(jié)構(gòu)的抗震性能。
[關(guān)鍵詞] 異型柱框-桁架結(jié)構(gòu) 振動臺A K-braced frame structure model with T-shaped, L-shaped, and+-shaped column is tested and investigated on shaking table. In order to study the seismic behavior of this kind of structure, all the tests both before and after the strong earthquake with principal-secondary sequence are studied carefully. Many important results,including the earthquake response and the earthquake resistance behavior, are discussed and analyzed. The braced frame with special-shaped columns is excellent in resisting of earthquake.
Keywords: special-shaped column; braced frame; shaking table test
