导轨式抗拉橡胶支座力学性能研究

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (22) : 122-127.

论文

导轨式抗拉橡胶支座力学性能研究

张龙飞1，陶忠2，潘文1，张战书3,兰香1，曾传旺4

作者信息 +

Mechanical properties of rail-type anti-tensile rubber bearings

ZHANG Longfei1, TAO Zhong2, PAN Wen1, ZHANG Zhanshu3, LAN Xiang1, ZENG Chuanwang4

Author information +

文章历史 +

摘要

针对传统隔震橡胶支座在抗拉性能方面存在的不足，设计了一种为橡胶支座提供附加抗拉刚度导轨式抗拉装置(RTD)，提出了可用于大高宽比高层建筑结构的新型导轨式隔震橡胶支座。借助拟静力试验，研究了天然橡胶支座LNR600和导轨式隔震橡胶支座RTD&LNR600的水平压剪和竖向抗拉力学性能；基于ABAQUS分析平台，研究了单RTD竖向抗拉力学性能本构关系，并分析了RTD&LNR600水平压剪和拉剪状态下的水平力学性能。研究结果表明：压剪状态下导轨式隔震橡胶支座RTD&LNR600的等效水平刚度较天然橡胶支座LNR600略有提高，但不超过4%；RTD&LNR600的竖向拉力-位移关系呈双线性关系，抗拉承载力远大于天然橡胶支座LNR600；RTD的抗拉性能不受偏心状态影响，力学行为可用双线性模型来进行描述；导轨式隔震橡胶支座RTD&LNR600在拉剪状态下水平性能稳定，其拉力相关性不明显。

Abstract

In view of the shortcomings of traditional isolation rubber bearings in tensile performance, a rail-type anti-tensile device(RTD) was designed to provide rubber bearings with additional tensile stiffness, and a new kind of tensile rubber bearings was proposed which can be used in high-rise buildings with large aspect ratio.By pseudo-static tests, the horizontal compression-shear and vertical tensile behaviors of the natural rubber bearing LNR600 and the rail-type rubber bearing RTD&LNR600 were studied.Based on the ABAQUS analysis platform, the vertical tensile constitutive relation of the RTD and the horizontal mechanical properties of the RTD&LNR600 were studied in the states of compression-shear and tension-shear.The results show that: in compression-shear state, the equivalent horizontal stiffness of RTD&LNR600 is slightly greater than that of LNR600，but not more than 4%.The vertical tensile constitutive relation of RTD&LNR600 is bilinear，and the tensile bearing capacity is greatly improved.The tensile properties of RTD are not affected by the eccentric state.It is shown the mechanical behaviors of RTD can be described by the bilinear model.The horizontal performance of RTD&LNR600 is stable in tension-shear state, and its correlation with tension is not obvious.

导出引用

张龙飞1，陶忠2，潘文1，张战书3,兰香1，曾传旺4. 导轨式抗拉橡胶支座力学性能研究[J]. 振动与冲击, 2018, 37(22): 122-127

ZHANG Longfei1, TAO Zhong2, PAN Wen1, ZHANG Zhanshu3, LAN Xiang1, ZENG Chuanwang4. Mechanical properties of rail-type anti-tensile rubber bearings[J]. Journal of Vibration and Shock, 2018, 37(22): 122-127

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