大底盘双塔楼连体结构抗震试验研究  

Shaking table model test of a twin-tower connecting tall building with enlarged base and transfer storey

作　　者：习朝位[1] 蒋义平[1] 佟道林[2] 李继光[1] 任海滨[1] 韩雪[2] 薛彦涛[2] 

机构地区：[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

出　　处：《建筑结构》2009年第5期102-107,共6页Building Structure

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为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。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 comer 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.

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 

分 类 号：TU317[建筑科学—结构工程] TU758.14