扣件式钢管脚手架构造简单,安装方便,在恒、活载作用下稳定性比较好,在目前桥梁施工特别是现浇梁施工中仍然广泛应用的一种支架,现就使用前在组合恒、活载作用下对模板支架、立杆地基承载力进行检算。安装时须注意的事项及安装顺序。支架安装完成后,应做预压试验,以检查支架的压缩量及稳定性。 Fastener steel pipe scaffolding is simple in construction and convenient in installation and has good stability under constant load and live load. In the current construction of bridges, in particular, cast-in-situ concrete beams are still widely used as a kind of scaffold, Under the action of live load, the bearing capacity of the template support and the pole foundation is checked. Installation should pay attention to the matters and installation order. After the bracket is installed, preload test should be done to check the amount of compression and stability of the bracket.