摘要
本文评述了研究混凝土多轴强度的意义,通过对空心园筒试件在轴压及内压作用下的破坏试验,研究了混凝土的双轴拉压强度,并提出应区别试件的初裂和极限破坏这一过程,指出用初裂强度反映混凝土的特性要比极限强度更合理,同时采用了简单可行的确定破坏点方法,对加载路径、减摩、强度和变形、破坏过程及破坏准则进行了系统的探讨,根据本试验结果,推荐了简化的双轴拉压强度计算公式。
By a failure test of concrete hollow cylinder under combined action of axial and internal pressures, the biaxial tension and compression strength, the process of initial crack and limit failure of the concrete hollow cylinder have been studied. The characteristics of the concrete cylinder may be expressed by the strength of initial crack more reasonably than by the limit failure.
At the same time, the loading path, reducing friction, strength and strain, failure process and its criterion are all discussed systematically. ccording to the experimental results, the simplified formula for calculating the strength of biaxial tension and compression is recommended in this paper.
出处
《水力发电学报》
EI
CSCD
北大核心
1989年第2期36-50,共15页
Journal of Hydroelectric Engineering
