摘要
当大跨度预应力钢筋混凝土结构构件在荷载作用下产生过大变形时,会影响建筑物安全和使用功能,严重时会有垮塌危险。文中以某学校大跨度预应力混凝土屋面板结构变形超标为例,通过现场结构实体性能检测、有限元计算分析等方法,找出导致结构变形的原因,为结构加固提供依据与建议,并为同类工程在结构设计选型、施工质量控制等方面提供参考。
Excessive deformation of long-span prestressed reinforced concrete structure members under load would affect the safety and function of buildings wtih collapse risk in serious cases.In this paper,taking the large-span prestressed concrete roof slab structure of a school as an example,the causes of structural deformation were investigated through field structural solid performance testing and finite element analysis.The paper provides basis and suggestion for structural reinforcement,as well as the reference for similar engineering in structural design,selection,and construction quality control.
作者
于明
YU Ming(Heilongjiang Province Academy of Cold Area Building Research,Harbin 150080,China)
出处
《低温建筑技术》
2021年第5期145-147,共3页
Low Temperature Architecture Technology
关键词
预应力混凝土屋面板
变形
性能检测
有限元分析
prestressed concrete roof
deformation
performance testing
finite element analysis
