What are the main supporting methods of grid structure

The supporting methods of grid structure can be divided into three parts: nearby supporting grid, three side supporting grid, two side supporting grid, point supporting grid and space grid combined with point supporting grid.

 In this way, the force is transmitted immediately and the support is symmetrical, which is a widely used supporting method.

Three side support grid refers to the three side support grid structure when it is necessary to design an open gate and safety passage on the midpoint line of an edge of a rectangular frame building due to production and manufacturing, or when one side is not suitable for the layout of prefabricated load-bearing components due to the function of the building.

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The setting standard of   point support grid is based on the reduction of positive bending moment and stiffness, so as to make the internal force of the whole grid structure tend to be even. For a single span with a little more support, the cantilever length should be 1 / 3 of the middle span, and for the multi span with more support, the cantilever length should be 1 / 4 of the middle span.

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