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现浇箱梁的裂缝是普遍存在的问题,在工程中很常见,也越来越受到人们的关注,世界各国也都对裂缝问题做出研究并制定了允许的裂缝宽度值,我国现行《混凝土结构设计规范》(GB50010-2002)规定对使用中允许出现裂缝的钢筋混凝土构件应力验算宽度计算所得的露天最大裂缝宽度不应超过0.2mm。
The cracks in cast-in-place box girder are common problems, which are common in engineering and are getting more and more attention. Many countries in the world also make research on the cracks and make the allowable values of the crack width. The current “Concrete Structural Design Code ”(GB50010-2002) stipulates that the maximum width of cracks in open-air calculated from the width of stress checking of reinforced concrete members allowed to be used in cracks should not exceed 0.2mm.