论文部分内容阅读
施工过程中建筑物的主体结构一般直接曝露于自然环境下,环境温度的变化会对结构的内力及变形产生影响。以装配式斜支撑节点钢框架结构为背景进行施工模拟,采用有限元软件MIDAS Gen的单元激活与钝化功能,将施工阶段结构所受的荷载按不同施工步分阶段加载于结构上,其中温度荷载采用正晒面与背晒面的极值温差来模拟。对考虑温差和不考虑温差的工况进行分析对比,结果表明:两种情况下结构构件的内力和变形均存在明显差异,说明需要按实际情况考虑温度作用对施工过程的影响。
The main structure of the building during the construction process is generally directly exposed to the natural environment, the changes in ambient temperature will have an impact on the structure of the internal forces and deformation. The construction simulation is carried out on the steel frame structure of the assembled inclined support node. The unit activation and passivation function of the finite element software MIDAS Gen is used to load the structure at the construction stage according to different construction steps and stages. The temperature The load is simulated using the extreme temperature difference between the positive and the negative ones. The results show that the internal forces and deformation of the structural members are obviously different in both cases, which shows that it is necessary to consider the effect of temperature on the construction process according to the actual situation.