不對(duì)稱高位滑移連接雙塔結(jié)構(gòu)的抗震性能分析
陳俊嶺1, 彭文兵2, 馬人樂(lè)1, 王永3
- 摘 要
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(1 同濟(jì)大學(xué)建筑工程系， 上海 200092; 2 同濟(jì)大學(xué)建筑設(shè)計(jì)研究院（集團(tuán)）有限公司，上海 200092; 3 貴陽(yáng)市建筑設(shè)計(jì)院有限公司, 貴陽(yáng) 550023)［摘要］貴陽(yáng)東景五星級(jí)酒店及辦公樓綜合項(xiàng)目由辦公樓和酒店兩個(gè)單體組成，兩個(gè)單體通過(guò)高位鋼連體結(jié)構(gòu)相連，整體結(jié)構(gòu)為復(fù)雜雙塔連體超限的鋼與混凝土混合結(jié)構(gòu)。運(yùn)用SATWE軟件建立與實(shí)際情況相符的精確單體結(jié)構(gòu)分析模型，對(duì)該結(jié)構(gòu)進(jìn)行動(dòng)力特性分析、振型分解反應(yīng)譜分析和彈性時(shí)程分析。針對(duì)連體結(jié)構(gòu)的復(fù)雜性，利用ABAQUS軟件建立整體模型，對(duì)結(jié)構(gòu)進(jìn)行彈塑性時(shí)程分析。分析表明，該結(jié)構(gòu)在多遇及罕遇地震作用下，層間位移角和底部剪力等滿足我國(guó)現(xiàn)行抗震規(guī)范的抗震設(shè)計(jì)標(biāo)準(zhǔn)；在罕遇地震作用下，連體與酒店之間滑移支座滿足最大滑移量要求。［關(guān)鍵詞］連體結(jié)構(gòu); 超限分析; 抗震性能; 滑移支座; 動(dòng)力彈塑性分析中圖分類號(hào)：TU311.3, TU973.31 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)23-0047-06Seismic performance of an asymmetric double-tower structure connected by sliding supportsChen Junling1, Peng Wenbing2, Ma Renle1, Wang Yong3(1 Department of Building Engineering, Tongji University, Shanghai 200092, China; 2 Architectural Design & Research Institute of Tongji University, Shanghai 200092, China; 3 Guiyang Architectural Design Institute Co., Ltd., Guiyang 550023, China)Abstract: Dongjing Five-star Hotel and Office Complex Building consists of a hotel building and an office building, which connect each other by a steel corridor at the top of two buildings. The over-all structural system is an ultra-limit complicated steel-concrete construction and its seismic performance needs to be further evaluated. The precise structural analysis models of the hotel and the office building were developed respectively by SATWE software, and then the structural dynamic characteristics were analyzed. The spectrum analysis method and the elastic time-history analysis were carried out to obtain their dynamic responses. At the same time, the whole structural analysis model including the hotel and the office building was developed to carry out the elasto-plastic dynamic analysis by the general finite element software ABAQUS. The analysis results show that the inter-story displacement angle and the seismic shear at each story meet the requirement of the present code under minute earthquake. The maximum sliding capacity of sliding supports meets the design requirement under rare earthquake.Keywords: connected structure; design beyond the code limits; seismic performance; sliding support; elasto-plastic dynamic analysis作者簡(jiǎn)介：陳俊嶺，博士，副教授，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email: chenjl@#edu.cn。參考文獻(xiàn)［1］黃瑾, 楊驍, 王陽(yáng)利. 某大底盤雙塔連體高層結(jié)構(gòu)抗震性能分析和設(shè)計(jì)［J］. 建筑結(jié)構(gòu), 2010, 40(2):28-32.［2］侯書利, 張南, 李俊峰，等. 某復(fù)雜連體高層結(jié)構(gòu)抗震設(shè)計(jì)［J］. 建筑結(jié)構(gòu), 2010, 40(10):26-29.［3］張崢, 丁潔民, 王忠平. 雙塔連體復(fù)雜高層結(jié)構(gòu)的超限分析及抗震性能評(píng)價(jià)［J］. 建筑結(jié)構(gòu), 2008, 38(9):52-57.［4］劉晶波, 李征宇, 石萌，等. 大跨高層連接體建筑結(jié)構(gòu)動(dòng)力分析［J］. 建筑結(jié)構(gòu)學(xué)報(bào), 2004, 25(1):45-52.［5］黃坤耀, 孫炳楠, 樓文娟，等. 非對(duì)稱雙塔連體結(jié)構(gòu)的動(dòng)力特性和地震響應(yīng)分析［J］. 工業(yè)建筑, 2001,31(8):27-29.［6］JEEHO L，GREGORY L, FENVES. Plastic-damage model for cyclic loading of concrete structure［J］. Journal of Engineering Mechanics, 1998, 124(8): 892-900.［7］張勁, 王慶揚(yáng), 胡守營(yíng)，等. ABAQUS混凝土損傷塑性模型參數(shù)驗(yàn)證［J］. 建筑結(jié)構(gòu), 2008, 38(8):127-130.［8］JGJ 3—2010高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程［S］. 北京：中國(guó)建筑工業(yè)出版社,2011.
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