摘要
通过对客运专线双线整孔箱梁预制的施工实践,分析了造成非荷载裂缝的成因,并提出了预防措施,指出三阶段张拉工艺的应用,有效地防止了梁体混凝土出现早期裂纹。
According to the construction practice of the double track monolithic box girder of the passenger dedicated line,the author analyzes the causes of the non-loading crack,and provides preventive measures,and the application of the three stages tension technology,effectively prevents the beam concrete from early crack.
出处
《山西建筑》
2009年第30期157-158,共2页
Shanxi Architecture
关键词
大体积混凝土
裂缝
预防
三阶段张拉工艺
large scale concrete
crack
prevention
three stages tension technology
