改性橡胶隔震支座抗拉性能试验研究  

Experimental study on tensile properties of modified rubber bearings

作　　者：杜杰伟 潘文[2,3] 王星然 金昱成 DU Jiewei;PAN Wen;WANG Xingran;JIN Yucheng(Faculty of Public Security and Emergency Management,Kunming University of Science and Technology Kunming 650500;不详)

机构地区：[1]昆明理工大学公共安全与应急管理学院学院,昆明650000 [2]昆明理工大学建筑工程学院,昆明650500 [3]云南省抗震工程技术研究中心,昆明650500

出　　处：《工业安全与环保》2022年第3期23-27,32,共6页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金(51368027);云南省教育厅基金(2020J0061)。

摘　　要：由于隔震支座的抗拉性能较低,当竖向拉伸变形较大时会对隔震支座性能造成不利影响。为解决支座抗拉问题,从改进隔震支座橡胶配方的角度,研发了1种新型改性橡胶支座。为测定隔震支座的抗拉性能,考虑了拉应力与拉应变2个方面,提出了1种隔震支座设计拉应力取值的参考方法,对该新型改性橡胶隔震支座进行了拉伸性能试验,结合拉应力取值的参考方法与试验结果得出了该种隔震支座的拉应力设计值为1.855 MPa,改性橡胶隔震支座的抗拉性能相较于普通橡胶隔震支座有所提高,为今后的相关隔震支座抗拉研究提供了参考。Due to the low tensile property of the isolation bearing, when the vertical tensile deformation is serious, the performance of the isolation bearing will be adversely affected. To solve the bearing tension problem, a new type of modified rubber bearing is developed from the perspective of improving the rubber formula. A reference method for determining the design tensile stress of the isolation bearing is proposed considering the tensile stress and tensile strain in order to measure the tensile performance of the isolation bearing.Combined with the reference method of tensile stress value and test results, the design value of tensile stress of this kind of isolation bearing is 1.855 MPa. Comparing with the ordinary rubber isolation bearing, the tensile performance of the modified rubber isolation bearing is improved which provides a reference for the future research on the tensile strength of related seismic isolation bearings.

关 键 词：橡胶隔震支座 拉应力设计值 拉伸试验 改性橡胶 

分 类 号：TU352.12[建筑科学—结构工程]