摘要
对尺寸为ф300 mm×600 mm的自然湿度及水饱和圆柱体混凝土试件进行了4种应变速率(10^(-5)、10^(-4)、10^(-3)、10^(-2)s^(-1))下的静动态单轴压缩试验。试验结果表明,混凝土的强度随加载速率的增大而增大,水饱和混凝土比自然湿度混凝土强度要低。两种湿度混凝土的峰值应变、弹性模量随加载速率的增加总体呈增大的趋势。
The static and dynamic uniaxial compression tests of cylindrical concrete specimen with a dimensions of φ300 mm× 600 mm under natural humidity and water-saturated conditions are conducted by four kinds of strain rate of 10 ^-5, 10^ -4, 10^-3,s^- 1 and 10^-2s-1. The test results show that the concrete strength increases with the increasing of loading rate, tile compressive strength of concrete under water-saturated condition is lower than that under natural humidity condition. The peak strain and elasticity modulus of two concretes appear an increasing trend with the increasing of loading rate.
出处
《水力发电》
北大核心
2016年第7期120-122,共3页
Water Power
基金
国家自然科学基金资助项目(51279092)
关键词
混凝土
率效应
应力
应变
弹性模量
concrete
strain rate
stress
strain
elasticity modulus
