CAJ | 학술논문

对铅芯橡胶支座的竖向刚度进行了试验研究，分析了支座竖向压应力和剪切应变对支座竖向刚度的影响。结果表明：在纯压状态下，支座的竖向压缩变形和竖向刚度均随着竖向压应力的增大近似呈线性增大。在偏压状态下，随着支座剪切应变的增大，支座的竖向压缩位移增大，并且竖向压应力越大，支座竖向压缩位移的增大幅度越大；但支座的竖向刚度随着支座剪切应变的增大近似呈线性减小，并且竖向压应力越大，支座竖向刚度减小的幅度越大。
대연심상효지좌적수향강도진행료시험연구，분석료지좌수향압응력화전절응변대지좌수향강도적영향。결과표명：재순압상태하，지좌적수향압축변형화수향강도균수착수향압응력적증대근사정선성증대。재편압상태하，수착지좌전절응변적증대，지좌적수향압축위이증대，병차수향압응력월대，지좌수향압축위이적증대폭도월대；단지좌적수향강도수착지좌전절응변적증대근사정선성감소，병차수향압응력월대，지좌수향강도감소적폭도월대。
Vertical stiffness test of the lead-centered rubber bearings was carried out,and the influence of the vertical compression stress and shear strain on the vertical stiffness of the bearings was studied. T he results show that the vertical compressive deformation and the vertical stiffness of the bearing increase linearly with increasing vertical compression stress when the bearing is under compression. Under compression with eccentricity,the vertical compressive deformation of the bearing increases with increasing shear strain,and it increases more significantly with increasing vertical pressure-stress. T he vertical stiffness of the bearing decreases linearly w ith increasing shear strain, and it decreases more significantly with increasing vertical compression stress.