摘要
丰乐河大桥为一孔71 m的钢筋混凝土双曲拱主桥,通过采用拱背增大截面加固方式,提高了原桥的承载能力,并将该桥加固前后的荷载试验结果进行对比分析,表明采用拱背增大截面加固后的丰乐河大桥受力性能得到明显改善,承载能力得到大幅提高,达到了加固的目的。
The Feng le he bridge is a reinforced concrete hyperbolic arch bridge with a span of 71m. According to the reinforcement the bridge by increase back arched section method, it improves the carrying capacity of the bridge and comparative analysis with the load test results, analysis show that load capability of the bridge has improved much than before.
关键词
双曲拱桥
荷载试验
增大截面
加固
hyperbolic arch bridge
laod test
increasesection
reinforce
