摘要
根据大量的试验数据，提出了不同加载速率对混凝土的抗拉强度、受拉弹性模量、泊松比、峰值应变和应力—应变全曲线的影响规律，探讨了强度的尺寸效应和骨料粒径效应的速率敏感性。同时进行了受拉的周期循环荷载试验，给出了滞回曲线表达式。
Based on the results of the tests,the effect laws of different loading rates on tensile strength,modlulus of elesticity,poisson ratio,peak strain and complete stress deformation curves of concrete is presented.The size effect and the aggregate size effect of dynamic strengths of concrete are also studied.The tests of concrete under cyclic tensile loading are carried out and the hysteresis loop equations are given.Finally,some methods of dynamic tension tests are discussed.
出处
《水电站设计》
1997年第1期17-22,38,共7页
Design of Hydroelectric Power Station
基金
"八五"国家重点科技攻关
关键词
动荷载
力学性质
混凝土坝
抗震设计
concrete,dynamic loading,mechanical property,test method.
