摘要
为对高层钢筋混凝土斜交网格结构的破坏机理及抗震性能进行深入研究，对一高层钢筋混凝土斜交网格建筑进行了1/25的模型模拟振动台试验，在试验中针对模型进入非线性后，相似关系中的弹性模量比并非定值的问题，采用了分级相似关系，使试验结果能更贴近原型反应。研究了模型结构的动力特性和在不同地震烈度作用下的加速度反应及关键位置的应变变化情况，探究造成结构破坏的原因，找出模型结构破坏的薄弱环节。根据斜交网格结构的受力特点，结合模型破坏形态，总结高层钢筋混凝土斜交网格建筑的优缺点，并为高层斜交网格建筑的平面形式设计及材料选择提出建议。
Abstract
In order to study the failure mechanism and aseismatic performance of high-rise diagonal frame structure, a shaking table test of a high-rise diagonal frame building model with 1/25 scale was carried out. Because the Young modulus of model material varies after it performances nonlinear behavior, Hierarchical similarity relation was used to make the result more accurate. And the dynamic characteristics, acceleration response in different seismic fortification intensity and strain variation in key location of model structure were studied. Meanwhile, the vulnerable segment and the failure reason of model structure were found out. According to the mechanical characteristics and cracking pattern of high-rise diagonal frame structure, the merits and demerits of this kind of building were proposed, which can be served as the suggestions for the selection of material and engineering design of the high-rise diagonal frame building.
关键词
钢筋混凝土 /
高层斜交网格结构 /
地震模拟振动台试验 /
分级相似关系 /
抗震性能
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Key words
reinforced concrete /
high-rise diagonal frame structure /
shaking table test /
similitude laws with different stages /
aseismatic performance
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黄思凝;郭迅;刘红彪.
高层钢筋混凝土斜交网格结构振动台试验研究[J]. 振动与冲击, 2012, 31(11): 127-132
HUANG Si-ning;GUO Xun;LIU Hong-biao.
Shaking table test of high-rise diagonal frame structure model[J]. Journal of Vibration and Shock, 2012, 31(11): 127-132
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