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针对某演艺中心楼板开大洞的结构不规则性特点,分别假定开大洞楼板为刚性楼板和弹性楼板,并运用PKPM分析软件,分析了楼板开大洞对结构的影响,计算结果表明,不同的楼盖计算类型对结构的周期、周期比和剪重比影响不明显,而对结构的内力、层间位移角和位移比有显著影响,指出在分析楼板开大洞的结构时,应考虑楼板的面内变形对结构受力的影响,在内力分析时,开大洞楼板宜按弹性楼板考虑。
Aiming at the structural irregularity of a large open floor in a performing arts center, it is assumed that the open floor is a rigid floor and an elastic floor, respectively. The influence of the open floor on the structure is analyzed by PKPM analysis software. The calculation results show that different floor The type of calculation has no obvious effect on the period, period ratio and shear weight ratio of the structure, but has a significant effect on the internal forces, interlayer displacement angle and displacement ratio of the structure. Deformation on the structure of the force, in the analysis of internal forces, Kai Dadong floor should be considered elastic floor.