摘要
针对目前超长混凝土结构裂缝控制的难题,通过超长结构工程设置后浇带及温度预应力技术等综合措施,充分发挥两种技术融合的优势,对后浇带进行封闭之前,张拉预应力筋,从而实现预应力效应的充分建立;后浇带完成封闭以后,结构会形成整体受力,从而解决超长结构的裂缝问题。
According to the difficulties in controlling the super-long concrete structure in China, the paper adopts the comprehensive measures of the post-cast strip and temperature prestressed technique in the super-long structure, exerts the advantages of the two techniques, realizes the es-tablishment of the prestressed effect by stretching the prestressed steel before the enclosure of the post-cast strip, and indicates the overall stress of the structure after the enclosure of the post-cast strip, so as to solve the cracks on the super-long structure.
出处
《山西建筑》
2017年第17期89-91,共3页
Shanxi Architecture
关键词
超长结构
预应力
伸缩缝
施工工艺
super-long structure, prestress, expansion joint, construction craft
