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鉴于内存及外部设备的限制,一般在现有国产计算机上进行大量未知数的高层建 筑结构静力与动力分析是困难的。本文采用了以下力学模型处理和程序技巧[l,2], 较好地克服了上述困难: (1)多层子结构模式装配和多种荷载模式组合; (2)节点位移的主从关系及相应位移规格数的概念,并在多层子结构自动拼装 中实现了多级位移规格数的传递与修改; (3)采用子结构刚度阵静力凝聚及动力程序和静力程序的“接力”方案,传递 先后计算信息; (4)引入等价膜概念,采用简单而又较精确的计算模型. 工程实例计算表明,上述处理是有效的。从而对现有国产计算机适应日益迫切的 高层建筑结构设计起了推动作用。
Given the limitations of memory and external equipment, it is often difficult to perform static and dynamic analysis of high-rise building structures that are largely unknown on existing domestic computers. In this paper, the following mechanical model processing and programming techniques [1, 2] are adopted to overcome the above difficulties: (1) Multi-layer sub-structure mode assembly and multiple load mode combinations; (2) Master-slave relationship of node displacements and The concept of corresponding displacement specification number, and the transfer and modification of multi-level displacement specification numbers are realized in the multi-layer sub-structure automatic assembly; (3) The “relay” of sub-structure stiffness array static cohesion and power program and static program is adopted. Program, passing calculation information one after another; (4) Introducing the concept of equivalent membrane, using a simple and accurate calculation model. Calculation of engineering examples shows that the above processing is effective. This has promoted the design of high-rise building structures that have become increasingly urgent for existing domestic computers.