深圳中航广场模型模拟地震振动台试验研究
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摘要
介绍了深圳中航广场公寓附楼—部分框支剪力墙结构模型模拟振动台试验研究。其特点是:主体结构平面呈L形,两肢比例接近1∶1,结构扭转效应明显。试验选定3条地震波,对该模型进行了基于7度的小震、中震、大震共33种地震工况下的模拟地震振动台试验,对结构进行模态分析,并且测定了模型结构的加速度、位移反应,观察了裂缝出现和发展情况。通过1/30模拟振动台试验研究表明结构整体性较差,两肢扭转不一致,导致两肢交接处拉压破坏比其他位置严重,形成该种平面形式的薄弱环节,需要对个别构件进行适当加强。从宏观现象的观察和实测数据的分析表明,结构总体上满足抗震设防三水准、两阶段设计的要求,具有抵抗基于7度的罕遇地震作用的能力。
A shaking table test of Shenzhen Chinese Air Line Square,a structure of partial frame supported shear wall structure,is introduced in this paper.It has a L-shape plan with its two same length of flanges.Three types of ground motions are used in the test with their seismic intensity of 7 degree and 33 loading conditions are used.The model scale is 1/30.Its modes are measured and so their responses of accelerations,displacements and strains.The test shows some weaknesses of the structure and some members should be strengthened.Generally,the structure has the ability of bearing seismic load of 7 degree of seismic intensity.
A shaking table test of Shenzhen Chinese Air Line Square,a structure of partial frame supported shear wall structure,is introduced in this paper.It has a L-shape plan with its two same length of flanges.Three types of ground motions are used in the test with their seismic intensity of 7 degree and 33 loading conditions are used.The model scale is 1/30.Its modes are measured and so their responses of accelerations,displacements and strains.The test shows some weaknesses of the structure and some members should be strengthened.Generally,the structure has the ability of bearing seismic load of 7 degree of seismic intensity.
引文
[1]徐忠根,等.超高层住宅建筑模拟地震振动台试验研究[J].建筑结构,2001,31(4):7-12.
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[7]JBJ101-96建筑抗震试验方法规程[S].
[2]GB50152-92混凝土结构试验方法标准[S].
[3]GB 50011-2001建筑抗震设计规范[S].
[4]GB50010-2002混凝土结构设计规范[S].
[5]JG J 3-91钢筋混凝土高层建筑结构设计与施工规程[S].
[6]JG J3-2002高层建筑混凝土结构技术规程[S].
[7]JBJ101-96建筑抗震试验方法规程[S].
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