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小跨径实腹式石拱桥拱背加固减载法研究

DOI: 10.3969/j.issn.1674-0696.2013.sup.1.21, PP. 815-817

Keywords: 小跨径,实腹式石拱桥,拱背,加固,减载法,增大截面法,smallspan,thesolid-typestonearchbridge,extrados,reinforcement,methodofreducingload,sectionenlargementmethod

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Abstract:

:?从钢筋混凝土增大截面加固法和拱上减载法入手,论证了拱背加固减载法对小跨径实腹式石拱桥进行加固的可行性,并结合依托工程验证了拱背加固减载法在小跨径石拱桥上的应用,并分析了加固前后主拱圈的承载力,以及该加固法与其他加固方法在提高主拱圈承载力上的对比。

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