橡胶隔震支座抗拉装置受力性能试验研究

发布时间：2018-03-30 07:02

本文选题：高层隔震结构　切入点：铅芯橡胶隔震支座　出处：《建筑结构学报》2017年07期

【摘要】：针对高层隔震结构在高烈度区可能存在的橡胶支座受拉以及倾覆危险的问题,设计了一种抗拉装置,并对其工作性能进行了试验验证。原型带抗拉装置的支座与普通支座的低周反复加载试验对比表明:压剪状态下,装置对支座本体的剪切性能基本不产生影响;拉剪状态下,该装置能够发挥抗拉作用,保证支座水平向力学性能的发挥;极限拉伸状态下,装置能发挥限位作用,承受大部分拉力,从而减小支座本体拉应力。同时,对模型抗拉装置进行了拟静力试验,验证了模型抗拉装置不会对支座在压剪状态下的剪切性能产生影响,但能起到预期的减小支座的拉应力和限位作用。
[Abstract]:Aiming at the possible problems of rubber bearing tension and overturning danger in high intensity region, a kind of tensile device is designed. The experimental results show that under compression and shear conditions, the device has no effect on the shearing performance of the bearing body, and under the tension and shear conditions, the experimental results show that the experimental results show that the experimental results show that the shear behavior of the bearing body is not affected by the compression and shear conditions, and that in the tensile and shear conditions, the shear behavior of the bearing body is not affected by the experimental results. The device can exert the function of tensile resistance and ensure the horizontal mechanical properties of the bearing. Under the limit tension condition, the device can play the role of limiting position and bear most of the tensile force, thus reducing the tensile stress of the support body. At the same time, The quasi-static test of the model tensile device is carried out, which proves that the model tensile device will not affect the shear performance of the bearing under compression and shear condition, but it can reduce the tensile stress and limit of the bearing as expected.
【作者单位】：同济大学土木工程防灾国家重点实验室;中船第九设计研究院工程有限公司;
【基金】：国家自然科学基金项目(51322803)
【分类号】：TU973

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