摘要
按相似理论设计制作了 1/ 6比例七层混凝土小型空心砌块房屋整体模型。通过在三向六自由度振动台上进行的模拟地震振动台试验 ,研究了模型结构的动力特性 ;研究模型结构在 7度多遇烈度、 7度基本烈度、 7度罕遇烈度、 8度罕遇烈度地震动作用下的自振特性加速度、位移、应变反应 ;研究模型结构的开裂烈度、开裂部位、震害发展情况。并根据振动台试验的结果 ,按相似关系推算七层混凝土小型空心砌块房屋原型结构的地震反应。
A model at 1/6 scale of a 7-story hollow concrete block masonry building was designed and fabricated by theory of similitude. The dynamic behavior of the model structure was studied by a simulated earthquake test on a shaking table with three dimensional and 6 degrees of freedom. The natural vibration behavior and the responses of acceleration,displacement and strain of the model structure under earthquake intensities7 and 8 were also studied. Furthermore, earthquake intensity under cracking,the distribution and development of cracks were investigated. Based on the experimental results on shaking table,the earthquake response of the prototype structure of 7-story hollow concrete block building is estimated by theory of similitude.
出处
《工程抗震》
1999年第3期22-25,12,共5页
Earthquake Resistant Engineering
