Abstract:in order to shorten the construction period, facilitate construction, reduce traffic impact, protect environment, and so on, segmental installation technology of precast cap beams which are large size or large quality are favored by more and more urban expressway or municipal viaduct projects. By using steel shoulder pole combined with screw reinforcement fixation technology, the cap beam P1 in node reconstruction new project of Puxing highway crossing Luheng road which weighs 580t is installed,not only the checking calculation results of various safety indexes show that the technology is reliable, but also the implementation effect is good,and ahead of schedule. The process is much feasible, which is not only a supplement and improvement to the current wet joining process, but also a reference for the counterparts in this field.
