摘要
针对目前预应力空心板桥普遍发生的底板纵向开裂现象,以广东某高速公路空心板桥为例,应用空间通用软件ANSYS进行了成因分析,得出了温差应力、混凝土收缩为主要导致因素,同时施工控制因素、设计考虑不足为先天因素,最后给出了两种加固对策,为同类工程问题提供参考。
Aiming at the longitudinal crack of pre-stressed hollow slab bridge base plate and taking a hollow slab bridge of Guangdong expressway for example,the space common software ANSYS is adopted to analyze the causes.The result shows that temperature stress and concrete shrinkage are the main factors and construction control and lack of consideration in design are the innate factors.In the end,two reinforcement countermeasures are put forward which provide references to the similar projects.
出处
《北方交通》
2010年第12期47-50,共4页
Northern Communications
关键词
空心板
纵向裂缝
质量控制
温度应力
ANSYS
加固
Hollow slab
Longitudinal crack
Quality control
Temperature stress
ANSYS
Reinforcement
