摘要
针对某大型跨流域调水工程的渡槽橡胶支座,研究了橡胶支座在80℃,90℃及100℃下加速老化下不同龄期的抗压弹性模量及极限抗压强度变化规律,将不同老化温度老化龄期后支座的抗压弹性模量及极限抗压强度通过阿累尼乌斯方程拟合,推导出基于年平均温度为23℃下弹性模量折半的服役寿命为41.37 a,年平均温度为23℃下极限抗压强度折半的服役寿命为52.90 a。
Due to excellent properties, rubber bearing is widely used in undertake part in engineering.And its stable performance affects the safety of whole engineering structures.In this paper, based on the rubber bearing of a large-scale inter basin water transfer project, accelerated aging compressive elastic modulus and ultimate compressive strength change law have been researched at different ages under 80℃, 90℃and 100℃.The age of bearing compressive elastic modulus and ultimate compressive strength with the different aging temperature aging were fitted through Arrhenius Equation.And there were got the service life of 41.37 years based on the half of elastic modulus and the service life of 52.9 years based on the half of compressive ultimate strength in the annual average temperature of 23℃.
出处
《广东水利水电》
2015年第9期21-25,共5页
Guangdong Water Resources and Hydropower
