现浇预应力箱梁顶板裂缝原因分析及处理措施  

Analysis and Treatment of Cracks in the Roof of Cast-in-place Prestressed Box Girder

作　　者：李小开 Li Xiaokai(Fujian Takicheng Construction Group Co.Ltd.,Zhangzhou,Fujian 363100)

机构地区：[1]福建省泷澄建设集团有限公司,福建漳州363100

出　　处：《江西建材》2022年第7期143-144,147,共3页Jiangxi Building Materials

摘　　要：桥梁施工中需要重点关注现浇预应力箱梁顶板裂缝问题,文中通过支架地基处理分析与支架搭设预压分析,应用正确的拆架时间方法,通过改进混凝土的工艺以及控制和改善水灰比等具体措施,为施工提供支持,强化裂缝控制效果。In bridge construction, we need to focus on the problem of cracks in the cast-in-place prestressed box girder roof. Through the analysis of the support foundation, the preload analysis of the support erection, the correct dismantling time method, the improvement of the concrete process, and the control and improvement of the water-cement ratio and other specific details Measures to provide support for the construction and strengthen the crack control effect.

关 键 词：预应力 箱梁顶板 裂缝 混凝土 

分 类 号：TU528[建筑科学—建筑技术科学]