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采用SAP2000软件模拟一栋600m高的超高层钢-混凝土混合结构,考虑了三种不同的竖向施工标高找平方式,分别是逐层找平、三层找平一次、六层找平一次,得到了不同施工找平方式下结构的竖向变形、竖向变形差及水平构件内力随时间的变化规律。对比不同施工找平方式之间的关系并给出其影响规律,基于逐层施工找平过程进行理论推导,得出每层竖向构件预留长度的计算公式,计算出各层的预留长度,使计算期时得到的结构实际层高与设计层高一致,此种竖向构件预留长度的算法对超高层建筑的现场施工具有参考价值。
SAP2000 software is used to simulate a 600m high-rise steel-concrete hybrid structure. Three different leveling methods of vertical construction are considered. They are leveling by layer, leveling by three layers and leveling by six layers at one time. Different construction The vertical deformation and vertical deformation of the structure and the variation of the internal force of the horizontal member with time under leveling mode. Contrasting the relationship between different construction leveling methods and giving the law of influence, the theoretical derivation is made based on the leveling process of each layer construction, the formula for calculating the reserved length of each vertical component is obtained and the reserved length of each layer is calculated. The actual height of the structure obtained during the calculation period is consistent with the design height. Such algorithm of reserved length of the vertical component has reference value for on-site construction of super high-rise buildings.