季节降温对超长高层建筑的影响

THE EFFECTS CAUSED BY THE SEASONAL DESCENDING TEMPERATURE ACTION ON SUPER-LONG TALL BUILDINGS

研究了超长高层建筑在季节降温作用下的温度效应问题。以郑州第二长途电信枢纽工程为计算实例,利用有限元方法对结构整体温度效应进行了计算与分析,总结出了超长高层建筑在季节性降温作用下结构整体温度的变形特点,给出了结构构件温度内力或应力的大小范围以及分布规律,论证了对于超长高层建筑,降温作用是一种较为不利的温度荷载,计算所得结果已为工程设计人员考虑温度作用的影响进行结构合理布置提供参考。

The temperature effects of a super-long building under the seasonal descending temperature action are studied. Having selected the Second Long-Distance Telecom Hinge in Zhengzhou as the calculating example, the finite element method is used for calculation and analysis to the whole structural temperature effects. The characteristics of the whole structural deformation, the scope and the distribution of the internal force or stress of each kind components under such a seasonal descending temperature case have been provided. It has been demonstrated that the seasonal descending action is a kind of mote disadvantageous temperature load. These results offer some references for engineers and designers to take the temperature action into reasonable structural disposal.