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馬 力1， 黃坤耀2， 趙 昕2， 徐繼東2
（1 浙江大學醫(yī)學院附屬第二醫(yī)院，杭州 310009；2 上海維固建筑結構設計有限公司，上海 200235）[摘要] 某高烈度區(qū)醫(yī)院需要有大空間手術室且分散分布，造成結構復雜，設計指標難以達到要求，且構件截面過大。通過Pushover靜力彈塑性分析，對比分析了普通支撐結構體系和防屈曲支撐體系，分析結果表明采用防屈曲支撐能使梁柱截面大大減小，層間位移和扭轉滿足要求；防屈曲支撐在大震下不會受壓退出工作，可提供穩(wěn)定的承載力和耗能能力；采用防屈曲支撐方案，可降低總造價，增加建筑使用面積。
[關鍵詞] 高烈度區(qū)；防屈曲支撐；醫(yī)院建筑；靜力彈塑性分析
中圖分類號：TU398.7 文獻標識碼：A 文章編號：1002-848X(2012) Sl-0470-03Application of buckling restrained brace in the hospital building in high-intensity area
Ma Li1, Huang Kunyao2, Zhao Xin2, Xu Jidong2
(1 Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou 310009, China; 2 Shanghai WEGO Building Structure Design Co., Ltd., Shanghai 200235, China)Abstract: A six-storey framework hospital building design of high-intensity areas was explored, for hospital building features -requiring large operating room and scattered distribution. Buckling restrained brace system is more appropriate than other systems, of wluch the advantages and disadvantages of several structural systems were analyzed. By Pushover static analysis,a comparative analysis between the general support structure system and buckling restrained brace system was carried out, and the results show that the beam cross-section can be greatly reduced, and the displacement and reverse can meet the specification. Meanwhile, buckling restrained brace will not quit working under big earthquake, and can improve the seismic performance of structures. Using of buckling restrained brace, which has a wide range of application, can reduce the total cost and increase building usable area.
Keywords: lugh-intensity area; buckling restrained brace; hospital building; Pushover analysis
