Extending arm type metal energy dissipation device for reinforcing wood structure mortise and tenon joint

The utility model discloses an extending arm type metal energy dissipation device for reinforcing a wood structure mortise and tenon joint. The extending arm type metal energy dissipation device comprises a wood column anchoring section steel plate, an extending arm section steel plate, an energy dissipation section steel plate, a wood beam anchoring section steel plate and a fixing piece. The device is formed by cutting and bending the steel plate, the manufacturing process is simple, the manufacturing cost is low, the rigidity of the tenon-and-mortise joint of the wood structure can be increased, the plastic deformation of the steel plate of the energy consumption section of the device also consumes and dissipates earthquake energy transmitted into the structure, the tenon pulling amount of the tenon-and-mortise joint is effectively reduced, and the overall stability of the wood structure is improved; the method can be used for anti-seismic reinforcement of wood-structure houses and can also be used for dam