摘要
本文简要地报导了立方体强度为88MPa的16个高强素混凝土试件和23个高强配筋混凝土试件的局部承压试验.试验的主要参数为:局压面积比,配箍率和局压加载方式.试验结果表明,高强混凝土局压强度提高系数较普通混凝土者有显著降低.文中给出了对现行规范局部承压强度计算公式的修改建议.
The test results of 18 plain concrete specimens and 23 reinforced concrete specimens with high-strength concrete of 88 MPa loaded over a limited area are briefly described.The specimens were all 300 mm square prisms with a height of 520 mm. The main experimental parameters studied were, the loading cases, the ratio of supporting area to loaded area, and the volumetric ratio of transverse reinforce ment. Tests showed that the increase of the local bearing strength of high-strength concrete is significantly lower than that of normal concrete. A revised formula for predicting the local bearing strength of high-strength concrete is proposed in this paper.
出处
《土木工程学报》
EI
CSCD
北大核心
1994年第5期52-61,共10页
China Civil Engineering Journal
基金
国家自然科学基金
城乡建设科技发展基金联合资助项目
