1、前言
1. Preface
拱形屋面在公共建筑中有较多的使用，但钢筋混凝土结构拱形屋面较少，因在其施工过程中，从定位放线、模板支设、钢筋绑扎到混凝土浇筑等各施工工序均有较大施工难度。东方文化广场工程6#商业楼屋顶为平顶拱形屋面，四周是弧形屋面，中间是平屋面，在其施工过程中，项目部遇到了一些困难，并采取了相应的措施，经过实践的检验，取得了良好的效果。项目部总结施工经验，编制了本工法，以便于其他类似工程借鉴。
Arched roof is widely used in public buildings, but reinforced concrete arched roof is less. In the construction process, the construction process from positioning and setting out, formwork support, reinforcement binding to concrete pouring and other construction procedures are relatively difficult. The roof of 6 ᦇ commercial building of Oriental Culture Square project is flat arched roof, with arc roof around and flat roof in the middle. In the construction process, the project department encountered some difficulties, and took corresponding measures, which achieved good results after practical test. The project department summarizes the construction experience and compiles this construction method for reference by other similar projects.
2、特点
2. Features
2.1模板体系采用多层板、木方等常用周转材料，弧形屋面主龙骨、梁底模等使用木方与多层板拼接制作。
2.1 the formwork system adopts common turnover materials such as multi-layer board and wood square, and the main keel of arc roof and beam bottom formwork are made by splicing wood square and multi-layer plate.
2.2弧形屋面模板、主龙骨和梁底模等使用了工程施工过程中产生的废弃短木方、窄模板，减少了材料浪费与损耗。
2. The waste of short square formwork and timber formwork in the construction process is reduced.
2.3弧形模板及主龙骨后台制作、现场拼组，较使用定型模板，加快了施工进度。
2.3 the arc-shaped formwork and main keel are made in the background and assembled on site, which speeds up the construction progress compared with the use of fixed formwork.
3、适用范围
3. Scope of application
本工法主要适用于钢筋混凝土结构拱形屋面的施工，其它如弧形屋面、穹屋顶等造型的钢筋混凝土结构也可借鉴。
This method is mainly applicable to the construction of arched roof of reinforced concrete structure, and other reinforced concrete structures such as arc roof and dome roof can also be used for reference.