采用新型錯層交叉布置伸臂的高層建筑抗震性能
王昌興，付學寶，劉明輝，陳春材，王田青，張凌
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（北京清華同衡規(guī)劃設(shè)計研究院有限公司節(jié)材研究與結(jié)構(gòu)優(yōu)化中心， 北京 100083）
［摘要］伸臂桁架作為核心筒和外框架之間有效的剛性連接，可有效降低核心筒傾覆力矩，顯著提高結(jié)構(gòu)的整體抗側(cè)剛度，在超高層建筑中得到了廣泛的應(yīng)用。以某超高層建筑為例，研究了新型錯層交叉布置伸臂形式在多遇地震和罕遇地震下對結(jié)構(gòu)整體抗震性能的影響，并考慮其與屈曲約束支撐相結(jié)合的優(yōu)化設(shè)計。分析結(jié)果表明：在實際工程中，該伸臂形式各項性能表現(xiàn)優(yōu)越，在保證結(jié)構(gòu)安全的前提下，可有效降低結(jié)構(gòu)造價。［關(guān)鍵詞］超高層建筑; 伸臂桁架; 錯層交叉; 抗震性能中圖分類號：TU972 文獻標識碼：A 文章編號：1002-848X(2016)06-0020-05
Seismic performance analysis of a new type outrigger system cross-arranged in staggered floorsWang Changxing, Fu Xuebao, Liu Minghui, Chen Chuncai, Wang Tianqing, Zhang Ling(Materials Saving Research and Structural Optimization Center, Beijing Tsinghua Urban Planning and Design Institute, Beijing 100083, China)Abstract:Outrigger system is an effective rigid connection between the corewall and the exterior frame to reduce the overturning moment of the corewall effectively and increase the structural overall lateral stiffness significantly, so it is widely used in the super high-rise buildings. Taking a super high-rise building as an example, the effect of a new type outrigger system cross-arranged in staggered floors on structural overall seismic performance was studied under the frequent earthquake and rare earthquake respectively, and the optimal design of the system combined with the buckling restrained braces was carried out. Analysis results show that the outrigger system has excellent seismic performance in practical engineering, and it can effectively reduce the cost on the premise that the safety of the building is ensured.Keywords:super high-rise building; outrigger system; cross in staggered floor; seismic performance
作者簡介：王昌興，學士，教授級高級工程師，Email:china-xing@126.com。
