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（中國(guó)建筑標(biāo)準(zhǔn)設(shè)計(jì)研究院， 北京 100048）

［摘要］對(duì)于高層非對(duì)稱連體結(jié)構(gòu)，考慮到強(qiáng)連體、弱連體的利弊及在端支座設(shè)置阻尼器減震結(jié)構(gòu)的弊端，提出一種帶耗能機(jī)制的新型連體結(jié)構(gòu)。該新型連體結(jié)構(gòu)在連體中部采用水平及斜向耗能構(gòu)件代替弦桿及腹桿；針對(duì)此連體結(jié)構(gòu)，給出了地震作用下各構(gòu)件的抗震性能目標(biāo)；對(duì)算例進(jìn)行了多遇地震彈性及罕遇地震彈塑性計(jì)算，結(jié)果表明，此新型連體結(jié)構(gòu)的設(shè)計(jì)可減弱主體結(jié)構(gòu)在罕遇地震作用下的破壞，整體結(jié)構(gòu)能達(dá)到預(yù)期的抗震性能設(shè)計(jì)目標(biāo)。同時(shí)也指出此新型連體結(jié)構(gòu)設(shè)計(jì)時(shí)需要注意的部分問(wèn)題。

［關(guān)鍵詞］連體結(jié)構(gòu); 屈曲約束構(gòu)件; 耗能減震分析; 抗震性能設(shè)計(jì)

中圖分類號(hào)：TU973      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2014)18-0089-05

Energy-dissipated analysis of buckling restrained members for high-rise asymmetric connected structures

Wang Zan, Yang Chao, Xu Wenjie, Wang Hanbing, Liu Guoyou

 (China Institute of Building Standard Design and Research, Beijing 100048, China)

Abstract: Considering both advantages and disadvantages of the strong-connected structure and the weak-connected structure as well as the disadvantages of energy-dissipated structures with damper at the end support, a new connected structure with energy-dissipated mechanism was proposed for high-rise asymmetric connected structures. In the new connected structure, horizontal and diagonal energy-dissipated members were set in the middle of the connected body to replace the chords and braces. Performance seismic design objectives were given for all the members under the earthquake. Elastic calculation under the frequent earthquake and elastic-plastic calculation under the rare earthquake were carried out on an example respectively. The results show that design of the new connected structure can reduce the damage of the main structure under the rare earthquake, and the entire structure can reach the expected performance seismic design objectives. Meanwhile, some problems that need pay attention to were pointed out to the design of the new connected structure.

Keywords: connected structure; buckling restrained member; energy-dissipated analysis; performance seismic design

作者簡(jiǎn)介：王贊，碩士，工程師，Email:wangz174255@126.com。

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