Unidirectional large damping friction pendulum supporting seat

Abstract

The invention belongs to the technical field of structural seismic safety, and provides an unidirectional large damping friction pendulum supporting seat. The unidirectional large damping friction pendulum supporting seat comprises an upper seat plate, an upper super-high pressure wear plate, a double convex curved surface ball core, a lower super-high pressure wear plate and a lower seat plate arranged from top to bottom in sequence; unidirectional point-like textured structures are arranged on the end surface of a unidirectional damping plate, the unidirectional point-like textured structures are concentrically and finely distributed, and are in the radial direction of a concentric circle, the point-like textured structures corresponding to the center of a circle are of symmetrical barbed structures, and tips of the barbed structures faces the center of the circle. According to the unidirectional large damping friction pendulum supporting seat, the function of unidirectional dampingis realized and excellent hysteresis performance is achieved; fine unidirectional point-like protruding textures are distributed on the unidirectional damping plate, large unidirectional friction coefficient in the single direction and small friction coefficient in the return direction can be realized, and the function of support resetting is facilitated; and the point-like texture protruding structures are finely distributed in a discontinuous concentric circle, so that fine wear particles generated under the action of friction can be cleaned out through intervals of the point-like texture protruding structures, and the smooth work of the supporting seat is ensured.

Description

technical field [0001] The invention belongs to the technical field of anti-seismic safety of structures, and in particular relates to a one-way large damping friction pendulum support. Background technique [0002] In order to prevent the structure from being damaged under the action of an earthquake, a shock-absorbing support is often installed at the position of the support. The horizontal inertial force of the upper structure is reduced by extending the period of the shock-absorbing support, and the earthquake is reduced by the energy consumption of the shock-absorbing support. Displacement response; and the lower structure of the shock-absorbing support often does not require special design, and the cost is relatively low; in addition, the shock-absorbing support can meet the requirements of daily use of the structure while providing a certain shock-absorbing capacity. [0003] Friction pendulum shock-absorbing bearing is a kind of shock-absorbing energy-dissipating bea...

AI Technical Summary

Problems solved by technology

However, the frictional pendulum shock-absorbing bearings currently used in engineering often have low frictional energy consumption when the structure undergoes an earthquake, and the residual displacement after the earthquake is relatively large

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