【摘要】 在试验研究的基础上,建立了考虑两阶段受力影响的桥梁加固钢筋混凝土受弯构件斜截面承载力计算公式。试验结果表明,两阶段受力对箍筋和弯起钢筋的抗剪承载力影响不大,混凝土的抗剪承载力与加固前构件的斜裂缝开展情况有关,后加补强斜钢板只承受二期荷载产生的剪力,其抗剪承载力可先按弹性分析方法确定,再由试验求得的修正系数进行修正。最后给出了桥梁加固钢筋混凝土受弯构件斜截面设计的实用计算方法。更多还原

【Abstract】 The analysis method and calculation expressions of oblique section consolidation of reinforced concrete bridge are discussed on the basis of test analysis. Test results indicate that the effects of grading loading to shearing carry capacity of binders, crook reinforcing bar could be ignored. Shearing carry capacity of steel plates is calculated by elasticity analysis method. Correction coefficients to shearing carry capacity of concrete and steel plates are adopted, these coefficients are confirmed by tests.更多还原