高层框架施工过程的模拟分析方法与近似方法的比较

高层建筑结构随着层数的增多,变形和内力都不断累加,设计中应该考虑施工过程的影响。以高层结构的施工顺序为基础,将结构分为若干个子结构,计算结构的累计内力和变形来考虑结构的施工过程,并编制了相应的计算程序。算例计算结果表明,建议的方法能够精确地模拟施工过程对结构变形和内力的影响,而采用其他方法计算时,内力应该乘以相应的放大系数。

Analysis Method of Tall Frame Building Considering Construction Process Effect

The deformation and internal force increase with the layers adding of the tall building.The effect of the construction process should be considered in design.Based on construction process of high rise building,the structure is divided into several sub-structures,and the cumulative internal force and deformation are adopted to simulate the construction process.The calculation program is edited.The results of the example show that the suggested method can accurately simulate the effect of the construction process on the structure.The internal force should be magnified when the other calculation method is adopted.