- 摘 要
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(1 河北建筑設計研究院有限責任公司，石家莊 050011；2 中國建筑科學研究院，北京 100013)
［摘要］通過對大底盤雙塔樓、連體和帶轉(zhuǎn)換層高層建筑結(jié)構(gòu)的1/20整體模型模擬振動臺試驗，測試了模型結(jié)構(gòu)的動力特性、阻尼比及其在設防烈度7度多遇、基本、罕遇和8度罕遇烈度地震作用下的加速度和位移反應等，研究了模型結(jié)構(gòu)的破壞機理和破壞模式。根據(jù)試驗結(jié)果和相似理論，推導、分析了原型結(jié)構(gòu)的地震反應，并與結(jié)構(gòu)計算分析結(jié)果進行了比較，揭示了地震作用下該結(jié)構(gòu)的受力性能和特點。
［關鍵詞］高層建筑；模擬地震振動臺試驗；抗震性能；雙塔連體；大底盤；轉(zhuǎn)換層
Shaking table model test of a twin-tower connecting tall building with enlarged base and transfer storey
Xi Chaowei1, Jiang Yiping1, Tong Daolin2, Li Jiguang1, Ren Haibin1, Han Xue2, Xue Yantao2 (1 Hebei Institute of Architectural Design & Research Co., Ltd., Shijiazhuang 050011, China;2 China Academy of Building Research, Beijing 100013, China)
Abstract:A shaking table test of a 1/20 scale model of the twin-tower connecting tall building with enlarged base and transfer story is carried out. The model’s dynamic properties, damp ratio and responses of acceleration and deformation under the different level earthquakes are studied. Its dynamic behavior, cracking pattern and failure mechanism are discussed as well. Then according to the model test results, the seismic response of the prototype is deduced and analyzed. The test results show that the torsion dynamic responses of the complex model structure are large and numerous cracks have occurred on the corner column of the model. Because of the connection, the acceleration responses of the top story are large. All results indicate that the prototype has a rational arrangement of structural elements and good anti-seismic behavior. It is able to survive different level earthquakes.
Keywords:tall building; shaking table model test; seismic response; twin-tower; enlarged base; transfer storey
作者簡介：習朝位(1961-)，總工程師，一級注冊結(jié)構(gòu)工程師，Email:xchw619@sohu.com。
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