铁路预应力混凝土现浇箱梁温度裂缝的控制

Temperature crack control of railway pre-strssed cast-in-site concrete box girder

通过实际工程事例,从配合比设计、混凝土施工、钢筋配置、预应力张拉等方面和温度裂缝的关系加以阐述,并提出相应措施来控制混凝土温度裂缝的出现,从而确保该现浇箱梁的工程质量。

Through specific engineering, the article expounded the relationship between the design of mixing rate, the concrete construction, reinforcemeng allocation, pre-stress drawing and the temperature crack. It also suggested corresp interventions to control the appearance of the concrete temperature crack. So as to guarantee the quality of this cast-in-site box girder project.