杭州某超长高层结构的温度应力分析

Temperature Stress Analysis of a Super-long High-rise Structure In Hangzhou

对于超长建筑物,温度和混凝土收缩应力的影响十分突出,而这种应力是由于结构变形受到约束而产生的,建筑物越长,应力越大。研究了超长高层建筑结构的温度效应问题,首先对该结构进行整体有限元建模,通过分析不同楼层不同位置处构件(梁、楼板、柱子)的内力变化及分布规律,得出温度变化对该结构的影响。比较几种常用抗裂措施后,为超长高层建筑结构考虑温度作用进行设计和施工提出了参考。该建筑物长期的变形监测仍在进行,也将是接下来工作的重点。

For super-long building,the stress of the temperature and concrete shrinkage is very important.This stress results from the structural deformation restrained.The stress increases as the length of the building.In this paper,temperature stress of super-long high-rise structure is studied.An overall finite element model is established and the change of inner stress and its distribution law of different locations on different floors components （beams,slabs,columns）are analyzed.Then effects of the temperature change are received Several anti-cracking measures are compared and provide references for the design of such structures.The deformation monitoring of this building is still on,and it will be the key point of the next step.