Energy dissipation property testing device of bolting connection part, testing method and molding method

The invention discloses an energy dissipation property testing device of a bolting connection part, a testing method and a molding method; the testing device comprises a force tensile testing machine, an upper test piece, a lower test piece, a bolt, a strain gage, a bridge, a dynamic strain meter, a signal collecting system and a computer; the upper test piece is fixed with an upper clamp of the force tensile testing machine, and the lower test piece is fixed with a lower clamp of the force tensile testing machine; the upper test piece and the lower test piece are fixed through the bolt; the strain gage is placed in the bolt, and connected with the bridge; the bridge is connected with the signal collecting system through the dynamic strain meter; the force and displacement of the force tensile testing machine are sent to the signal collecting system through the force sensor and the displacement sensor respectively; the signal collecting system is connected with the computer and sends the testing data of the collected bolting combining part force, displacement and bolt pre-tightening force to the computer. The device is simple in structure, convenient to mount and dismount, and easy to repeat test, and solves the problem that the lagged non-linear property of the bolting combining part is hard to test.