新型金属弹簧隔震支座的试验研究及理论分析

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振动与冲击 ›› 2025, Vol. 44 ›› Issue (6) : 231-243.

地震科学与结构抗震

新型金属弹簧隔震支座的试验研究及理论分析

梁煜明1,2，白羽*1,2，马明3

作者信息 +

Experimental research and theoretical analysis on a new type of metal spring isolation bearing

LIANG Yuming1， 2， BAI Yu*1， 2， MA Ming3

Author information +

文章历史 +

摘要

为解决刚性滑板支座滑动过程水平刚度为零的问题，研发了一种新型金属弹簧隔震支座。通过金属弹簧组件的纯剪切试验和隔震支座的压剪试验，研究构件部分和支座整体的恢复力特性及关系，研究结果表明隔震支座的竖向承载力与水平恢复力相互独立，金属弹簧组件具有非线性的弹性恢复力，恢复力随位移增大而增加，隔震支座的摩擦力大小与竖向压力有关，耗能效果随竖向压力增大而增加。提出了边界约束条件下的曲线形状的欧拉伯努利梁大变形的计算方法，用于分析弹簧组件中变曲率弹簧片的力-位移关系，进而能根据弹簧材料和尺寸准确计算隔震支座的水平恢复力。所采用的理论分析方法与拟静力试验以及有限元算法的结果相比，吻合较好，具有可靠的计算精度和较高的计算效率。

Abstract

In order to solve the issue of zero horizontal stiffness in the sliding process of rigid skateboard bearings, a new type of metal spring isolation bearings was developed. Through pure shear tests of the metal spring components and compression-shear tests of the isolation bearings, the relationship between the restoring force characteristics of the component part and the isolation bearing was studied. The study results indicate that the vertical bearing capacity of the isolation bearing is independent of the horizontal restoring force; the metal spring component has nonlinear elastic restoring force, with the restoring force increasing with displacement. The frictional force of the isolation bearing is related to the vertical pressure, and the energy dissipation effect increases with increasing vertical pressure. A method for calculating the large deformation of curved Euler-Bernoulli beams under boundary constraints was proposed. Using this method and basing on the spring material and dimensions, the force-displacement relationship of the isolation bearing was observed. The computed results with the proposed method agree well with the test data and the simulation results. The proposed method demonstrating reliable calculation accuracy and high computational efficiency.

导出引用

梁煜明1, 2, 白羽1, 2, 马明3. 新型金属弹簧隔震支座的试验研究及理论分析[J]. 振动与冲击, 2025, 44(6): 231-243

LIANG Yuming1, 2, BAI Yu1, 2, MA Ming3. Experimental research and theoretical analysis on a new type of metal spring isolation bearing[J]. Journal of Vibration and Shock, 2025, 44(6): 231-243

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