预应力重级制吊车梁的施工

The application of long-line pretensioned method in heavy duty crane girder fabrication

介绍了预应力重级制吊车梁构件生产任务 ,经科学论证 ,提出了采用钢绞线作为预应力筋的方案 ,详细对其工艺原理、流程 ,长线台座制作等内容进行了阐述 ,通过工程应用 ,缩短了工期 ,质量合格率达 10 0 %。

In view of the fabrication of heavy duty crane girder through scientific demonstration the production scheme that using steel wire to replace prestressing tendon is proposed. The technical principle, process, the fabrication of long line dado and other contents are elaborated. Practical application show that the limit time is shortened and percent of pass is 100 %.