【摘要】 简要论述了天然橡胶支座(LNR)的力学特性,通过不同温度、不同压应力、不同应变的相关性压剪试验研究了天然橡胶支座等效阻尼比的温度、压应力、应变相关性.试验结果表明常规条件下天然橡胶支座等效阻尼比在2%~3%之间,结合日本的相关资料及设计方法,隔震设计中可不考虑天然橡胶支座的粘滞阻尼.更多还原

【Abstract】 Machanical characteristics of linear natural rubber bearing is discussed in brief.By means of dependency compressive-shear testing in different temperature,compressive stress,strain,the equivalent damping ratio dependence of linear natural rubber bearing are researched.Based on the testing result,in normal condition,the equivalent damping ratio ranges from 2% to 3%.In view of the data and design method of Japan,the viscous damping of linear natural rubber bearing may not be considered in the seismic-isolation design.更多还原