钢-聚氨酯夹层桥面横隔板切口应力分析

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英文篇名：STRESS ANALYSIS OF ARC-SHAPE CUTOUTS IN DIAGRAM OF STEEL BOX GIRDER WITH A STEEL-POLYURETHANE-SANDWICH BRIDGE DECK 作者：马兴键 ; 单成林 英文作者：MA Xingjian;SHAN Chenglin;School of Civil Engineering and Transportation,South China University of Technology; 关键词：桥梁工程 ; 横隔板弧形切口 ; 钢-聚氨酯夹层板 ; 有限元分析 ; 节段模型 英文关键词：bridge engineering;;arc-shape cutouts in diagram;;steel-polyurethane-sandwich plate;;ANSYS;;section model 中文刊名：DRAW 英文刊名：Low Temperature Architecture Technology 机构：华南理工大学土木与交通学院; 出版日期：2019-03-28 出版单位：低温建筑技术 年：2019 期：v.41;No.249 语种：中文; 页：DRAW201903006 页数：4 CN：03 ISSN：23-1170/TU 分类号：25-28

摘要

钢箱梁弧形切口疲劳开裂是最常见的疲劳病害问题之一,该处容易造成应力集中。为解决这一问题,本文提出使用新型钢-聚氨酯夹层桥面板(简称"SPS桥面板"),通过分别建立使用钢桥面板和夹层桥面板的钢箱梁节段模型,比较两者在整体结构的应力、弧形切口周边应力,结果表明夹层桥面板的使用显著降低了弧形切口应力,有利于缓解疲劳开裂风险。
        The fatigue cracking of arc-shape cutouts in a steel box girder is one of the most common fatigue diseases, which is easy to cause stress concentration. In order to solve this problem, a new type of Steel-polyurethaneSandwich bridge deck(SPS bridge deck)is proposed. The stress of structure and arc-shape cutouts is compared by establishing section models of steel box girder using steel bridge deck and SPS bridge deck separately. The results shows that the use of sandwich bridge deck significantly reduces the stress of the arc-shape cutouts, which is help to reduce the risk of fatigue cracking.

引文

[1]李小珍.现代钢桥新型结构型式及其疲劳问题分析[J].钢结构,2006,21(5):50-55.
    [2]张龙威,赵华,谭承君,等. UHPC-钢轻型组合桥面弧形切口受力分析[J].中国公路学报, 2016,29(9):75-81.
    [3]陈斌,邵旭东,曹君辉.正交异性钢桥面疲劳开裂研究[J].工程力学,2012,29(12):170-174.
    [4]陶晓燕,刘晓光,张玉玲.正交异性钢桥面板受力特征研究,钢结构,2010,25(7):12-14.
    [5]李立峰,张东波,袁卓亚,等.正交异性钢桥面板中弧形缺口的受力分析,公路交通科技,2012,29(4):55-61.
    [6]中交公路规划设计院.公路桥涵设计通用规范:JTG D60-2015[S].北京:人民交通出版社,2015.