机构地区: 汕头大学工学院土木工程系
出 处: 《建筑材料学报》 2015年第5期796-801,共6页
摘 要: 进行了钢筋混凝土(RC)原梁、钢筋钢丝网砂浆(SWM)加固RC梁和钢筋网砂浆(SM)加固RC梁的抗剪试验研究.结果表明:相对于SM加固法,SWM加固法能大幅度提高加固梁的抗剪承载力;即使在钢丝网用量很少的情况下(施工方便),加固梁仍具有良好的裂缝控制能力和相对较大的变形能力.同时,给出了加固梁的抗剪承载力和斜裂缝宽度的计算公式,其计算结果与试验结果基本吻合. Steel bar/wire mesh mortar (SWM)-reinforced concrete (RC) beams, steel bar mortar (SM)-RC beams, and controll RC beams were produced for comparison study experimentally. Results indicate that SWM can significantly enhance the shear capacity of reinforced beams. Even though under low reinforce- ment ratios of wire mesh, the SWM reinforced beams still have good anti-cracking property and relatively larger deformation capacity. Calculation formula for predicting the shear capacity and diagonal crack width of reinforced beams is also provided and show a basic agreement with the tested results.
关 键 词: 钢筋钢丝网砂浆 钢筋混凝土梁 抗剪承载力 抗裂
领 域: [建筑科学]