摘要
超长混凝土结构的温度应力问题一直是结构设计中值得探讨的问题。结合工程实践,介绍了超长混凝土框架的混凝土收缩和等效温差的计算方法、采用无粘结预应力钢筋抵抗温度应力的设计方法以及合理设置后浇带和双梁引导缝等构造措施。通过这些方法和措施,能有效减少混凝土结构中温度应力带来的影响。
Temperature stress on super-long concrete structures is an issue,which should be discussed during structure design.Combined with an engineering practice,a computing method about concrete shrinkage and equivalent temperature variation was introduced.A design method about resisting temperature stress of unbonded prestress was used.Several construction measures were used to reduce the temperature variation and shrinkage effects such as reasonable set of late poured band and double beam guide seam.All these methods and measures can effectively reduce the impact of temperature stress in concrete structures.
出处
《建筑结构》
CSCD
北大核心
2012年第7期56-59,共4页
Building Structure
关键词
超长混凝土结构
温度应力
等效温差
无粘结预应力
双梁引导缝
super-long concrete structure
temperature stress
equivalent temperature variation
unbonded prestress
double beam guide seam
作者简介
华旦，硕士，助理工程师，Email：huadannie@qq．com。
