What are the ways to arrange columns and roof trusses in the on-site prefabrication stage and hoisting stage? How to arrange it?

Please add something to it, I don’t know, right? Plan layout of prefabricated stage columns: Generally, when the rotating method is used to hang the columns, the columns are arranged diagonally. ； When using the sliding method to hang columns, the columns are arranged longitudinally. Floor plan of roof truss prefabrication stage: The roof trusses are generally arranged to be prefabricated in a horizontal position within the span, with 3 to 4 trusses in each stack. There are three ways to arrange roof trusses: Diagonal arrangement, forward and reverse diagonal arrangement and forward and reverse longitudinal arrangement. Column hoisting stage layout: The prefabrication stage has been arranged according to the placement requirements of the hoisting stage. There are two commonly used layout methods during the roof truss hoisting stage.: One is to be positioned diagonally against the edge of the column, and the other is to be positioned longitudinally in groups against the edge of the column.

It is best to place the columns on the outside of the column base and hoist them nearby. After hoisting, hoist the driving beams. Group the roof truss beams on the inside of the column base and stand them slightly slanted next to the columns. Enter the crane and hoist the roof truss beams. It is best to place the roof truss beams in order to facilitate turning over. (for reference)