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桥面铺装施工缺陷对铺装层受力的影晌

DOI: 10.3969/j.issn.1674-0696.2014.03.06, PP. 22-26

Keywords: 桥梁工程,桥面铺装,施工缺陷,层间剪应力,ABAQUS,bridgeengil1eerillg,bridgepavement,constructiondefects,interlaminarshearstress,ABAQUS

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Abstract:

:？以连续刚构桥箱梁桥面板上局部实体模型为分析对象，通过对桥面铺装垫层有元施工缝缺陷及桥面铺装垫层与主梁桥面板之间有无界面军占结缺陷等情况的三维有限元模型的计算，分析了桥面铺装层的受力特性和界面连接状况对层间剪应力及拉应力分布的影响。研究结果表明:当桥面铺装层与桥面板之间出现缺陷后，铺装层在汽车荷载作用下将产生较大的层间剪应力、纵向和横向拉应力，从而促使桥面铺装层结构发生剪切破坏和铺装垫层泪凝土的开裂破坏。

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