Damper for energy dissipation
A damper for energy dissipation, including a core plate, at least four restrain plates and at least four connecting plates. The connecting plates are provided on two ends of the core plate, and the restrain plates are provided on middle of the core plate. The core plate is provided with a first hole, a second hole and a third hole. The connecting plate includes a first plate body and a second plate body connected with an end thereof. A first fastener passes through the first hole to connect the first plate body with the core plate. A second fastener passes through the second hole to connect the second plate body with the core plate. A third fastener passes through the third hole to connect the restrain plate with the core plate. The second plate body is located between two restrain plates.
1. A damper for energy dissipation, comprising:
a core plate;
at least four restrain plates; and
at least four connecting plates;
wherein one end of the core plate is provided with at least two of the at least four connecting plates, and the other end of the core plate is provided with at least two of the at least four connecting plates; and the at least four restrain plates are provided on a middle of the core plate;
the core plate is provided with a plurality of first connecting holes, a plurality of second connecting holes and a plurality of third connecting holes; each of the at least four connecting plates comprises a first plate body and a second plate body connected to an end of the first plate body; each of a plurality of first fasteners is configured to pass through each of the plurality of first connecting holes to connect the first plate body with the core plate; each of a plurality of second fasteners is configured to pass through each of the plurality of second connecting holes to connect the second plate body with the core plate; each of a plurality of third fasteners is configured to pass through each of the plurality of third connecting holes to connect each of the at least four restrain plates with the core plate; the second plate body is located between two opposite restrain plates; and symmetrical inclined gaps are provided between the at least four restrain plates and the at least four connecting plates;
the at least four connecting plates are slidable with respect to the core plate under an external force; and the at least four restrain plates are slidable with respect to the core plate to restrain an out-of-plane deformation of the core plate.
2. The damper of claim 1 , wherein each of the plurality of first connecting holes is a round hole; each of the plurality of second connecting holes and each of the plurality of third connecting holes are elongated holes; and an extension direction of the plurality of second connecting holes is the same as that of the plurality of third connecting holes.
3. The damper of claim 1 , wherein the plurality of first fasteners, the plurality of second fasteners, and the plurality of third fasteners are all bolts.
4. The damper of claim 1 , wherein an inner surface of each of the at least four restrain plates and an inner surface of the second plate body are both coated with a layer of a non-cohesive material.
5. The damper of claim 1 , wherein four restrain plates and four connecting plates are provided; two of the four connecting plates are symmetrically arranged at two ends of a side of the core plate; the other two of the four connecting plates are symmetrically arranged at two ends of the other side of the core plate; the two of the four connecting plates at one side of the core plate and the other two of the four connecting plates at the other side of the core plate are provided in mirror symmetry; two of the four restrain plates are symmetrically arranged at a middle of one side of the core plate; the other two of the four restrain plates are symmetrically arranged at a middle of the other side of the core plate; and the two of the four restrain plates at one side of the core plate and the other two of the four restrain plates at the other side of the core plate are provided in mirror symmetry.
6. The damper of claim 1 , wherein a longitudinal section of each of the at least four restrain plates is of an isosceles trapezoid shape; a length direction of a bottom surface of each of the at least four restrain plates is parallel to a length direction of the core plate; two inclined planes are respectively provided at two sides of the first plate body, and are parallel to waist surfaces of the two opposite restrain plates, respectively; and a gap is provided between each of the inclined planes and a waist surface of the corresponding restrain plate.
7. The damper of claim 1 , wherein the core plate is an energy-dissipation steel plate; and the at least four restrain plates are made of steel.