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首页> 外文会议>Composite Construction in Steel and Concrete VII >Slab Effects on Beam-Column Subassemblies-Beam Strength and Elongation Issues
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Slab Effects on Beam-Column Subassemblies-Beam Strength and Elongation Issues

机译：平板对梁柱组件的影响-梁强度和伸长率问题

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摘要

This paper describes the effect of composite slabs in increasing beam strength and its implications for design. It also discusses the "beam-growth" phenomena, which can detrimentally influence the performance of a frame with reinforced concrete or precast concrete beams, and its impact on steel beams with RC slabs. From the subassembly testing conducted the slab increased the beam strength by around 40%. However, the slab could not maintain strength at large drifts without degradation with transverse or longitudinal decking placed around the columns. This indicates that while transverse or longitudinal slabs should not be considered in design to size the beam, they should be considered in the beam overstrength calculations for the design of other members. Also, both rational considerations and experimental results indicate that beam growth effects tend to be small for composite steel beams because the steel beams are able to yield in both tension and compression.
机译：本文描述了复合板在增加梁强度中的作用及其对设计的影响。它还讨论了“梁增长”现象，该现象会不利地影响钢筋混凝土或预制混凝土梁框架的性能，以及其对带有RC平板的钢梁的影响。通过进行子组件测试，平板将梁强度提高了约40％。但是，平板在柱子周围放置横向或纵向铺面时，不能保持大位移下的强度而不降低强度。这表明尽管在设计中不应考虑横向或纵向平板来确定梁的尺寸，但在设计其他构件时应在梁超强度计算中考虑它们。同样，合理的考虑和实验结果都表明，复合钢梁的束增长效果往往很小，因为钢梁既能在拉伸又能在压缩方面屈服。

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  • 会议地点 North Queensland(AU)
  • 作者

    Gregory MacRae; Michael Hobbs; Des Bull; Tushar Chaudhari; Roberto Leon; Charles Clifton; Geoff Chase;

  • 作者单位

    Dept. of Civil and Natural Resources Engineering, Univ. of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand;

    Batchelar McDougall Consulting, Level 3, Three35 East, Lincoln Rd., Addington, Christchurch 8024, New Zealand;

    Dept. of Civil and Natural Resources Engineering, Univ. of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand;

    Dept. of Civil and Natural Resources Engineering, Univ. of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand;

    Dept. of Civil and Environmental Engineering, Virginia Tech, Blacksberg, VA 24061;

    Dept. of Civil and Environmental Engineering, Univ. of Auckland, Auckland 1010, New Zealand;

    Dept. of Mechanical Engineering, Univ. of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand;

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