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介绍了双曲面球型减隔震支座的结构、特点、关键技术以及应用情况。双曲面球型减隔震支座主要由上座板、中座板、下座板、上球面不锈钢滑板、下球面不锈钢滑板、上四氟滑板、下四氟滑板、抗剪螺栓及防尘密封裙等几部分组成。双曲面球型减隔震支座的减隔震原理是,当地震发生且横向力超过给定值时,抗剪螺栓被剪断,支座的横向限位约束被解除,大半径球面摩擦副横向即可自由滑动,从而地震产生的能量在动能和势能之间反复转换。同时,在滑移的过程中,摩擦阻力逐渐消耗地震能量。这样,延长了地震周期,达到减震的效果。而势能又可形成恢复力,使支座复位。
The structure, characteristics, key technologies and applications of the hyperboloid ball-bearings are introduced. The hyperboloid ball type shock absorber is mainly composed of the upper seat plate, the middle seat plate, the lower seat plate, the upper spherical stainless steel slide plate, the lower spherical stainless steel slide plate, the upper tetrafluoroethylene slide plate, the lower tetrafluoroethylene slide plate, the shear bolt and the dustproof seal skirt And other components. The principle of reducing the seismic isolation of the hyperboloid ballistic isolation bearing is that when the earthquake occurs and the lateral force exceeds a given value, the shear bolt is cut off and the lateral restraint constraint of the support is released, and the large radius spherical friction pair transversely You can slide freely so that the energy produced by the earthquake is repeatedly switched between kinetic energy and potential energy. At the same time, the frictional resistance gradually consumes the seismic energy during slippage. In this way, the earthquake cycle is prolonged to achieve the effect of damping. The potential energy can form resilience, the support reset.