一种改进的建筑结构施工模拟计算方法及其应用

An improved algorithm for sequential construction analysis of building structures and its applications

建筑结构在恒载下的内力计算需要合理考虑施工过程的影响。对所有施工步进行独立的有限元分析需要耗费比较多的计算时间,本文基于施工过程中结构变化的特点提出了一种改进算法,实际工程算例表明改进算法可以大幅降低施工模拟计算的耗时。传统的按层指定施工次序的方式并不能满足超高层、连体等复杂建筑结构的施工模拟需求,本文改进的计算方法,允许对构件任意指定施工次序和考虑拆除部分构件。实际工程算例表明,利用这些改进可以更加准确地计算复杂结构的恒载内力。

The calculation of the member forces under dead load needs to consider the influence of the construction process.The finite element analysis of all construction steps requires a large amount of computational time.The sequential construction analysis method is studied and an improved algorithm is given which can greatly reduce the time.Specifying the order of construction by floor cannot meet the construction simulation requirements of super high-rise buildings,connected towers and other complex structures.The improved algorithm can get the accurate member forces when the structure is not constructed by floor or parts of the components are removed.