连续刚构桥挂篮0#块施工与反力架预压技术

Continuous rigid frame bridge hanging basket 0#block construction and reaction frame preloading technology

结合连续刚构桥施工工程实例,对连续刚构桥挂篮0#块施工技术进行分析,具体包括:托架搭设方案、托架结构形式、托架技术参数、托架基本构造、0#块底模施工、千斤顶反预压以及侧模、内模、拉杆、内腔支架施工技术。同时,从质量控制角度分析了0#块钢筋、预应力筋、冷却管的制作与安装、0#块混凝土浇筑、0#块预应力筋张拉技术,达到了规范施工的目的。

In this paper,the construction technology of continuous rigid frame bridge hanging basket 0#block is analyzed with the construction example of continuous rigid frame bridge.Specifically,it includes the bracket setting scheme,bracket structure form,bracket technical parameters,bracket basic structure,0#block bottom die construction,jack back preloading and side die,inner die,tie rod,inner cavity support construction technology analysis.At the same time,from the perspective of quality control,The fabrication and installation of 0#block steel bar,prestressed bar,cooling pipe,0#block concrete pouring and 0#block prestressed bar tensioning technology are analyzed to achieve the purpose of standardized construction.