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首页> 外文期刊>Bridge structures >Web plumb influence on skewed I-girder, steel bridges during construction
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Web plumb influence on skewed I-girder, steel bridges during construction

机译：腹板垂线对倾斜的工字梁，施工期间的钢桥的影响

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摘要

At different stages during the construction of steel, I-girder bridges having severely skewed abutments, differential deflections between adjacent and interconnected girders cause rotations and deflections out of plane. These deformations are more pronounced during deck placement when appreciable additional dead load is added to the bridge and the girders are non-composite. As a result, girder webs can end up out of plumb at the completion of construction, especially at the supports. Although it is commonly desired by bridge designers and contractors to alleviate this out of plumbness via different erection and detailing strategies, out of plumbness effects on skewed bridge response at the completion of construction are not completely understood. The present research employs finite element analysis to study effects that different detailing methods have on girder stresses, vertical and lateral deformations, and cross-frame forces for single-span bridges with varying skew angles.
机译：在钢结构的不同阶段，具有严重偏斜基台的工字钢桥，相邻和相互连接的钢梁之间的差异挠度会导致平面外的旋转和挠度。当桥上增加了相当大的附加静载荷且大梁不复合时，这些变形在甲板放置期间会更加明显。结果，在施工完成时，尤其是在支座处，梁腹板最终可能脱离铅垂。尽管桥梁设计者和承包商通常希望通过不同的安装和细化策略来减轻这种垂坠现象，但是对于完全倾斜对桥梁斜度响应的影响并没有完全被理解。本研究采用有限元分析来研究不同细化方法对倾斜角度变化的单跨桥梁的梁应力，垂直和横向变形以及跨框架力的影响。

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  • 来源
    《Bridge structures》 |2011年第3期|p.115-122|共8页
  • 作者

    M. Sharafbayani; D.G. Linzell; C.-C. Chen;

  • 作者单位

    Department of Civil and Environmental Engineering, Pennsylvania State University,University Park, PA, USA;

    Department of Civil and Environmental Engineering, Pennsylvania State University,University Park, PA, USA;

    Department of Civil and Environmental Engineering, Pennsylvania State University,University Park, PA, USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    skewed; steel; i-girder; web; plumb; construction; finite element analysis;

    机译：斜;钢;工字梁;腹板;铅垂;构造;有限元分析;

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