Assembly type cold-formed thin-walled steel truss support lateral force resistant system

The invention relates to an assembly type cold-formed thin-walled steel truss support lateral force resistant system and belongs to the field of structural engineering. The lateral force resistant system comprises a U-shaped cold-formed thin-walled steel beam, a cold-formed thin-walled steel spliced section column, a cold-formed thin-walled steel spliced I-shaped inclined strut, a cold-formed thin-walled steel C-shaped section wall frame column and self-drilling tapping screws. A cold-formed thin-walled steel U-shaped section beam, the cold-formed thin-walled steel spliced section column and the cold-formed thin-walled steel spliced I-shaped inclined strut are connected to form a lateral force resistant truss or a single inclined support or a cross-shaped support frame through the corresponding self-drilling tapping screws. The cold-formed thin-walled steel C-shaped section wall frame column is connected with the U-shaped cold-formed thin-walled steel beam and the cold-formed thin-walled steel spliced I-shaped inclined strut through the corresponding self-drilling tapping screws. The assembly type cold-formed thin-walled steel truss support lateral force resistant system provided by the invention can be used for a multilayer cold-formed thin-walled steel structure residential system, the shock resistance of the structure can be improved, assembly construction is convenient, and wide application prospects are achieved.