摘要
讨论了不同强度等级混凝土的尺寸效应。试验结果表明,随着强度等级的提高,抗压强度的尺寸效应表现得更为显著,而对弹性模量无明显影响;对纵向应变也较小,但对横向应变有一定影响,以小试块测得的应变值较大。高径比在1.5之内,对各强度等级的混凝土所测得的强度值均随高径比的减小而增大。
The size effect of concretes with warious strength levels are discussed in this paper.As the strength level rose,the size effect on compressive strength appeared to be significant,but it had no apparent influence on elastic modulus,and a less influence on longitudinal strain.The size effect also affected transverse strain to certain degree,the strain was higher for the smaller size specimen.For cylindrical specimens with height-diameter ratio less than 1.5,the compressive strength values from various strength levels concrete increased as the height-diameter ratio decreased.
出处
《四川建筑科学研究》
北大核心
2005年第1期95-97,118,共4页
Sichuan Building Science
