A friction-dissipating mild steel yield composite damper

Abstract

This utility model relates to a friction-energy-dissipating soft steel yielding composite damper, comprising a first friction steel plate, a second friction steel plate, a third friction steel plate, and bolts. The front and rear surfaces of the first friction steel plate are respectively attached to the second and third friction steel plates. An upper connecting plate is fixedly connected to the top of the first friction steel plate, and a lower connecting plate is fixedly connected to the bottom of the second and third friction steel plates. Multiple first metal yielding plates are equidistantly arranged on one side of the first friction steel plate. Through the temporal coupling of friction energy dissipation and soft steel yielding energy dissipation, a stepped energy dissipation path of "friction first, then yielding" is formed. During small to medium earthquakes, the friction mechanism dominates energy dissipation, reducing damage to the main structure; during strong earthquakes, the soft steel plastic deformation connects to absorb energy, significantly improving the structure's resistance to collapse and broadening the applicable earthquake intensity range of the damper.

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