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周 春, 曲 宏, 王沁平, 王 湧
(現(xiàn)代設(shè)計集團上海建筑設(shè)計研究院有限公司,上海200041)[摘要] 招商銀行上海大廈由南北兩個塔樓和塔樓間的大跨度連橋組成,均屬于平面和豎向均不規(guī)則的抗震超限建筑。本文介紹了對該結(jié)構(gòu)進行1:25縮尺模型的模擬振動臺試驗。對試驗結(jié)果的分析表明:招商銀行上海大廈的南塔樓、北塔樓結(jié)構(gòu)均可以滿足的三水準抗震設(shè)防要求,連橋結(jié)構(gòu)在滿足三水準抗震設(shè)防要求的前提下,可以滿足中震時節(jié)點處于彈性受力狀態(tài),大震不屈服的設(shè)計目標。此外,還證實了連橋鋼桁架與混凝土簡體連接節(jié)點是連橋結(jié)構(gòu)的薄弱部位。
[關(guān)鍵詞] 高層混合結(jié)構(gòu);大跨度連體結(jié)構(gòu);振動臺試驗Analysis of Shaking Table Test of the CMB Shanghai Building
Zhou Chun, Qu Hong, Wang Qingping, Wang Yong
( Xian Dai Architectural Design Group, Shanghai Institute of Architectural Design &Research Co. , Ltd., Shanghai 200041, China)Abstract: China Merchants Bank Shanghai Building is composed of the North and the South Tower, a large-span link-bridge between the two towers. The configuration of the horizontal and vertical plan does not satisfy the rules of the seismic code. This article gives a introduction to the shaking table test of a 1:25 scale model. The results of the test shows that the behavour of the north tower structure. south tower structure and the link-bridge structure can meet the requirement of the three-level seismic-resisting design. And the link-bridge structure can also remain elastic node under medium-level earthquake, does not yield under rare-level earthquake. In addition, the test shows that the joint of the link-bridge and the concrete tube is the weakest part of the link-bridge structure.
Keywords: high-level mixed structure; large-span link-bridge structures; shaking table test