摘要
选择具有代表性的六层条形砖混结构作为研究对象 ,建立数值计算模型 ,整体进行有限元分析 ,预测开裂部位并与实际资料进行对比以验证所建模型的正确性 .然后通过改变建筑物长度、楼板作法及温差变化等因素 ,又建立了七个计算模型 ,通过对计算结果的分析 ,得到影响砖混结构温度开裂的主要原因 。
A typical bar-like six-store brick building was selected to be a research object.The computational model was set up first,and then the temperature stress of the model was analyzed by finite element method.The result was used to predict the crack area of the real building.On the base of the model,seven models were created by changing the length of the building changing the roof temperature and using lift-slabs roof instead of field-cast ones.The temperature stresses of all these models were calculated by finite element method and the main reasons that influence the temperature cracks were found then,which play a very important role theoretically in how to prevent or decrease the temperature cracks in brick structures.
出处
《天津城市建设学院学报》
CAS
2001年第1期28-32,共5页
Journal of Tianjin Institute of Urban Construction
基金
天津市建委基金资助项目! (98- 3)
关键词
砖混结构
温度应力
有限元分析
temperature stress
brick structures
finite element analysis
