某地铁运行库上盖超长混凝土结构温度效应探析  

Analysis of the temperature effect of the super-long concrete structure of a subway operation depot

作　　者：陈峰 CHEN Feng(Fuzhou Academy of Building Research Co.Ltd.,Fuzhou 350003)

机构地区：[1]福州市建筑科学研究院有限公司,福建福州350003

出　　处：《福建建筑》2021年第6期30-34,共5页Fujian Architecture & Construction

摘　　要：对某地铁运行库上盖超长混凝土结构的温度效应进行了数值模拟及分析。分析结果表明:在温度荷载作用下,二层超长楼板的温度效应(包括各方向的变形和应力情况)均大于转换层厚板的温度效应;楼板的温度变形呈中间小两端大的情况,而温度应力则在对称轴位置附近较大,且在洞口、剪力墙集中部位或柱距较小处及厚板与普通楼板交界角部处易产生应力集中;根据分析结果,提出有效温控措施。The finite element simulation and analysis are carried out on the temperature effect of the overlong concrete structure of a subway operation depot.The results show that the temperature effect of the second floor(including the deformation and stress in all directions)is greater than that of the thick plate of the transfer floor under the action of temperature load.The temperature deformation tends to be large at both ends and small in the middle,while the temperature stress is larger near the symmetry axis,and it is easy to produce stress concentration in the hole,the concentrated part of the shear wall or the small column spacing and the corner of the junction between the thick plate and the ordinary floor.Then the effective temperature control measures are put forward.

关 键 词：超长混凝土结构 温度应力 厚板转换层 多尺度有限元模拟 地铁运行库 

分 类 号：TU755[建筑科学—建筑技术科学]