【摘要】 本文依据25根无腹筋和12根有腹筋高强混凝土约束梁在集中荷裁作用下的试验,对具有反弯点的高强混凝土受弯构件的破坏型态、剪跨比、混凝土强度、纵向钢筋含钢特征值和含箍特征值对抗剪强度的影响进行了分析。在分析试验数据的基础上,提出了高强混凝土受弯构件的抗剪强度计算公式,并给出了计算公式的适用范围,同时与国内外有关公式进行了对比。更多还原

【Abstract】 In this paper, 25 reinforced high-strength concrete restrained beams without web reinforcement and 12 reinforced high-strength concrete restrained beams with web reinforcement under concentrated loading were studied, The effects of failure patterns, shear-span ratios, concrete strength, characteristic values of longitudinal reinforcement and stirrup content in the flexural members with inflection points on their shear strength were analyzed.Based on the analysis of the present test results, a formula and the limits corresponding to the formula were presented. In the meanwhile, this formula was compared with the relevant formulae at home and abroad.更多还原