(1 河北建筑设计研究院有限责任公司，石家庄 050011；2 中国建筑科学研究院，北京 100013)
［摘要］通过对大底盘双塔楼、连体和带转换层高层建筑结构的1/20整体模型模拟振动台试验，测试了模型结构的动力特性、阻尼比及其在设防烈度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应等，研究了模型结构的破坏机理和破坏模式。根据试验结果和相似理论，推导、分析了原型结构的地震反应，并与结构计算分析结果进行了比较，揭示了地震作用下该结构的受力性能和特点。
［关键词］高层建筑；模拟地震振动台试验；抗震性能；双塔连体；大底盘；转换层
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
作者简介：习朝位(1961-)，总工程师，一级注册结构工程师，Email:xchw619@sohu.com。
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