沙漠高温超长预应力后张楼板混凝土抗裂施工技术  

Crack Resistance Construction Technology of Desert High Temperature Super-long Prestressed Post-tensioned Floor Concrete

作　　者：张伟 ZHANG Wei(China Railway 18 Bureau Group Co.,Ltd.Tianjin International Engineering Branch,Tianjin 300222,China)

机构地区：[1]中铁十八局集团有限公司天津国际工程分公司,天津300222

出　　处：《安阳工学院学报》2020年第2期78-81,共4页Journal of Anyang Institute of Technology

摘　　要：沙漠高温环境下超长预应力后张楼板的混凝土施工经常发生各种不规则裂缝,不但影响着工程的美观性,而且不利于工程施工质量和结构稳定性的提升。基于此,结合卡塔尔绿洲酒店工程,分析预应力后张楼板混凝土施工裂缝形成的原因,提出混凝土抗裂施工技术的具体应用,并在施工中取得良好效果。分析结果表明,合理应用混凝土抗裂施工技术,可有效保证沙漠高温环境下超长预应力后张楼板施工质量和结构稳定性,可为同类工程施工提供参考和借鉴。Irregular cracks often occur in the concrete construction of super-long post-tensioned slabs in desert high temperature environment, which not only affects the aesthetics of the project, but also is not conducive to the improvement of construction quality and structural stability. Based on this, combined with Qatar Oasis Hotel Project, this paper analyses the causes of concrete construction cracks in pre-stressed post-tensioned floor, and puts forward concrete application of concrete anti-cracking construction technology, and achieves good results in construction. The analysis results show that reasonable application of concrete anti-cracking construction technology can effectively guarantee the construction quality and structural stability of super-long post-tensioned slab under desert high temperature environment, and can provide reference for similar projects.

关 键 词：沙漠高温环境 超长预应力后张楼板 混凝土 抗裂施工技术 

分 类 号：TU757.1[建筑科学—建筑技术科学]