Steel structure connecting joint with damping energy dissipation mechanism

Abstract

This invention relates to the field of building engineering technology, specifically to a steel structure connection node with a damping energy dissipation mechanism. The damping energy dissipation mechanism includes a cylinder, inside which a first piston is inserted. A guide rod is fixedly mounted on the first piston, coaxially arranged with the cylinder and slidingly passing through it. At least one adjusting rod is also inserted inside the cylinder, parallel to the guide rod, and has a flow groove on its side wall. The flow groove consists of a middle section located in the middle of the adjusting rod and two adjusting sections located at both ends of the adjusting rod. A first through hole is formed on the first piston, through which the first piston is slidably fitted onto the adjusting rod. The side wall of the first through hole and the flow groove together form a damping flow channel. When the middle section aligns with the side wall of the first through hole, the length of the damping flow channel remains constant. When the adjusting sections align with the side wall of the first through hole, the length of the damping flow channel gradually increases from the middle to the end of the adjusting rod. This allows for adjustment of the damping capacity according to the vibration load.

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