某不对称连体结构设计

Design of an asymmetrical concatenated structure

不对称连体结构两侧塔楼质量、构件布置均不同,为使两个分塔动力特性接近、整体结构变形协调,调整主要抗侧力构件剪力墙的布置是最有效的方式。详细介绍了某不对称连体结构剪力墙布置的调整思路,在结构最大层间位移角满足要求的前提下,减少核心筒内部剪力墙,可有效增加结构扭转刚度,同时减小结构在地震作用下的响应。7层高位连体选用底层桁架支撑方案,对比了桁架层两种不同腹杆布置方式,经验算,对称N字形布置方案可保证连体下一层受剪承载力不小于连体桁架层受剪承载力的65%。

The quality of the towers and the layout of the components on both sides of the asymmetrical connected structure are different. In order to make the dynamic characteristics of the two sub-towers close and the deformation of the whole structure is coordination, it is the most effective way to adjust the layout of the shear wall of the main lateral resistance component. The adjustment idea of shear wall arrangement of an asymmetrical concatenated structure was introduced in detail. On the premise that the maxmum inter-story displacement angle of the structure meets the requirements, reducing the internal shear wall of the core can effectively increase the torsional stiffness of the structure while reducing the response of the structure in earthquake action. The 7-story high level connection selects the bottom truss support scheme, and two different web arrangement methods of truss layer were compared. As a result, the symmetrical N-shaped arrangement can ensure that the shear bearing capacity of the next layer of the conjoined body is not less than 65% of the shear bearing capacity of the conjoined truss layer.