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S形剪力墙结构高层建筑平面形状复杂,特别是长与高相当,不能采用刚性楼板的假定时,其动力与静力分析都是十分困难的。鉴于内存及外部设备的限制,本文采用了以下力学模型处理和JIGFEX程序技巧,较好地克服了上述困难: (1)采用了空间离散质点的动力分析模型; (2)多层子结构模式; (3)节点位移的主从关系及相应位移规格数的概念; (4)引入等价膜概念,采用简单而又较精确的计算模型; (5)采用了空间离散质点的多阶振型组合计算地震力。 昆仑饭店工程实例计算表明,上述处理是有效的,在国产TQ-18计算机上用JIGFEX程序系统对大型复杂的高层建筑进行动力与静力分析是可行的。
High-rise building with S-shaped shear wall structure is complex in shape, especially when its length and height are equal. When rigid floor cannot be used, its dynamic and static analysis is very difficult. In view of the limitations of memory and external equipment, the following mechanical model processing and JIGFEX program techniques are adopted in this paper to overcome the above difficulties: (1) A dynamic analysis model of spatial discrete particles is adopted; (2) Multi-layer sub-structure model; (3) The master-slave relationship of nodal displacements and the concept of corresponding displacement specification numbers; (4) The concept of equivalent membranes is introduced, and a simple and accurate calculation model is used; (5) Multi-order vibration mode combinations using spatially discrete particles Calculate seismic force. The Kunlun Hotel engineering example calculation shows that the above-mentioned processing is effective. It is feasible to use the JIGFEX program system to perform dynamic and static analysis on large-scale and complex high-rise buildings on domestic TQ-18 computers.