摘要
历来混凝土的应力应变关系采用轴心加载试验取得.本文介绍一种新的方法:偏心加载求应力应变曲线法.“偏心法”将试验、数学分析及电子计算机综合运用,并已付之实践.“偏心法”取得的结果,在曲线完善程度,模拟压弯构件存在应变梯度等方面均优于“轴心法”所取得的结果.
Through the years, the stress-strain relation of concrete is obtained by axis—load test. In this paper, anew wethod is presented which seeks the Solution of stress—strain curve by bias-load. The 'bias-method' is used with the test, mathematical analysts and electronic computer and is already pracitsed. The result of the 'bias-method' prevails over of 'axis method ' in field of perfect extent of curve and of simulating the compress—mend members to have strain gradient.
关键词
偏心加载
混凝土
应力
应变
bias-load
concrete
stress—strain
test
