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(1 鄭州大學(xué)土木工程學(xué)院， 鄭州 450002； 2 河南工業(yè)大學(xué)土木建筑學(xué)院，鄭州 450052)

［摘要］對(duì)中國(guó)和美國(guó)相關(guān)規(guī)范中基礎(chǔ)隔震結(jié)構(gòu)水平地震作用的分布規(guī)律進(jìn)行了分析，根據(jù)基礎(chǔ)隔震結(jié)構(gòu)的地震反應(yīng)特點(diǎn)，給出了基礎(chǔ)隔震結(jié)構(gòu)水平地震作用改進(jìn)算法。與基礎(chǔ)隔震結(jié)構(gòu)時(shí)程反應(yīng)的對(duì)比分析表明，該改進(jìn)算法既能較好地描述基礎(chǔ)隔震結(jié)構(gòu)水平地震作用的分布形態(tài)，又能滿足結(jié)構(gòu)層間剪力的要求，是合理有效的。

［關(guān)鍵詞］基礎(chǔ)隔震結(jié)構(gòu)；水平地震作用；改進(jìn)算法；規(guī)范

An improved method on horizontal earthquake action of base isolated structures

Wang Jianqiang¹, Ding Yonggang²(1 School of Civil Engineering, Zhengzhou University, Zhengzhou 450002, China;2 School of Civil Engineering and Architecture, Henan University of Technology, Zhengzhou 450052, China)

Abstract:The prescription on vertical distribution form of horizontal earthquake action of base isolated structures in the codes of China and United States are expatiated, according to the earthquake response characters of base isolated structures, an improved method on horizontal earthquake action of base isolated structures is proposed, the results among the prescription in the codes, the improved method and the time history analysis are compared, it is shown that the results of the improved method not only depict the vertical distribution form very well but also satisfy the story shear of the structure, so the improved method is rational and available.

Keywords:base isolated structures; horizontal earthquake action; improved method; code

國(guó)家自然科學(xué)基金（50478050）；河南省高等學(xué)校青年骨干教師資助計(jì)劃項(xiàng)目。

作者簡(jiǎn)介：王建強(qiáng)，博士，副教授，Email:wjq1975@163.com。

參考文獻(xiàn)

［1］GB50011—2001建筑抗震設(shè)計(jì)規(guī)范［S］.北京：中國(guó)建筑工業(yè)出版社，2001.

［2］Uniform Building Code［S］. International conference of building officials, Whittier, California, 1997.

［3］International Building Code ［S］. International code council, Whittier, California, 2000.

［4］NEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures ［S］. Federal emergency management agency, vol. FEMA-450, Washington DC, 2003.

［5］KELLY J M. Earthquake-resistant design with rubber (second edition)［M］. Springer: London, 1997