【摘要】 通过6根复合砂浆钢丝网加固梁和1根普通钢筋混凝土梁的抗弯试验,分析梁的开裂荷载和极限荷载,研究钢丝网配筋率和砂浆强度对梁承载力的影响,推导了复合砂浆钢丝网加固梁的极限承载力计算公式。结果表明,钢丝网能大幅提高梁的抗弯承载力,且承载力在一定范围内随钢丝网配筋率增大而增大,砂浆强度对提高梁的承载力作用不大,所推导公式值与试验值吻合较好。更多还原

【Abstract】 Through the experimental research on six RC beams strengthened with ferrocement and one comparative RC beam,we analyzed the experimental data from cracking load and ultimate load,investigated the influence of wire mesh ratio and mortar strength for flexural bearing capacity and deduced the ultimate bearing capacity calculation formula of beams strengthened with ferrocement.The results indicate that wire mesh can significantly increase the flexural bearing capacity,bearing capacity is positively correlated to wire mesh reinforcement ratio within a certain scope and irrelevant to mortar strength,formula value is in good agreement with experimental results.更多还原