Why not connected with the bracket or arch construction scaffolding
The following points of city bridge fabrication and installation of template, bracket and arch:1 the contact surface between the template and concrete should be smooth and tight. Production, composite steel formwork installation should be consistent with current national standards "GB50214" technical specification for composite steel formwork; matched panel plywood formwork with steel frame should be staggered layout; polymer panel, hard plastic or glass steel formwork shall be firmly connected with the side ribs and reinforcing ribs; soil, brick etc. mould making should be smooth, solid, mould surface should be flat and smooth; arch bridge construction, in appropriate conditions can be used on the arch tyre, but should not be used on the arch of fetal period.
Not connected with the bracket or arch construction scaffolding, because the first construction scaffolding removed after the completion of the project, and to support or arch structure to a certain strength to remove the solidification.
2 the support column must fall on the foundation with enough bearing capacity, the bottom end of the column must be provided with a backing plate or a concrete cushion block. The foundation of the support is forbidden to be soaked by water, and the measures to prevent frost heave must be taken in winter construction.3 both sides of the support hole should be reinforced, the night should be set warning lights. In the construction of the river which is easy to be affected by drifting objects, a strong protective device should be set up.4 installation bracket and arch process, should be installed with the erection of temporary support. The multilayer bracket, horizontal plate bracket should be horizontal, vertical column should, on the lower column should be in the same center line.5 frame or not connected with the construction scaffolding and arch bridge.
