大底盘双塔结构水平地震反应分析

发布时间：2018-02-04 04:35

本文关键词： 双塔结构水平地震反应整体模型分析单塔模型分析　出处：《建筑结构》2016年S2期 　论文类型：期刊论文

【摘要】：大底盘多塔楼结构属于复杂高层结构,它的体型庞大复杂,平面不规则,刚度分布不均匀,并伴随着复杂的扭转,其设计及抗震研究难度较大。主要对大底盘双塔对称结构水平地震作用及反应进行分析,采用MADIS/Gen软件建模分析,对比分析了双塔结构整体模型与单塔结构模型的地震作用与地震反应差别,包括楼层剪力、楼层位移、层间位移角和楼层倾覆弯矩。研究结果表明,整体分析模型与单塔分析模型比较,后者楼层剪力偏小,楼层位移接近,层间位移角偏小,倾覆力矩偏大。对多塔结构,宜按整体模型和单塔模型分别计算,并采用较不利的结果进行结构设计。
[Abstract]:The large chassis multi-tower structure belongs to the complex high-rise structure, its body size is huge and complex, the plane is irregular, the stiffness distribution is not even, and accompanied by the complex torsion. It is difficult to design and aseismic research. The horizontal seismic action and response of the symmetrical double-tower structure with large chassis are analyzed, and the MADIS/Gen software is used to model and analyze. The difference of seismic action and seismic response between the whole model of double tower structure and the model of single tower structure is compared and analyzed, including floor shear force, floor displacement, interstory displacement angle and floor overturning moment. Compared with the single tower analysis model, the overall analysis model shows that the floor shear force is small, the floor displacement is close, the interstory displacement angle is small, and the overturning moment is larger. For the multi-tower structure, the calculation should be based on the integral model and the single tower model respectively. The unfavorable result is used to design the structure.
【作者单位】：中南林业科技大学土木工程与力学学院;
【分类号】：TU973.31
【正文快照】： 0引言近年来,随着社会经济的发展,城市地面资源趋于饱和,人们开始挖掘地下和空间资源,大底盘多塔楼逐渐出现在了各大城市中。大底盘多塔楼高层建筑是底部为几层公共空间的大底盘,在上部是两个或两个以上塔楼作为主体的结构[1]。它是一种集商业、办公、住宅为一体的多功能高层

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