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首页> 外文期刊>Magazine of Concrete Research >Dip and strike angles method for yield line analysis of reinforced concrete slabs
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Dip and strike angles method for yield line analysis of reinforced concrete slabs

机译：倾角和走向角法的钢筋混凝土板屈服线分析

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摘要

Yield line analysis is a useful method for design of reinforced concrete slabs, but has been limited to slabs of simple geometry, because up to now there has been no generally applicable and fully automatic computational procedure for complex-shaped slabs. Herein, a new yield line method that can be applied to any convex polygonal-shaped slab is developed. In this method, the deflections of the slab regions divided by yield lines are measured in terms of the dip and strike angles of the slab surfaces, which can define the geometry of all kinematically admissible collapse mechanisms or yield line patterns. The external work done and the internal energy dissipation at yield lines are evaluated as functions of the dip and strike angles, and the principle of virtual work is used to determine the corresponding load factor. The final solution is obtained by minimising the load factor with respect to the dip and strike angles. A computer program based on this method has been produced. Its correctness is verified by checking against results obtained by others for simple cases, and its versatility is demonstrated by applying it to complicated slabs subjected to point, line, patch and uniformly distributed loads.
机译：屈服线分析是用于设计钢筋混凝土板的有用方法，但是由于几何形状的板到目前为止还没有普遍适用的全自动计算程序，因此屈服线分析仅限于简单几何形状的板。在此，开发了可应用于任何凸多边形板的新的屈服线方法。在这种方法中，用板条表面的倾角和触角来测量板条区域的屈服线所产生的挠度，这可以定义所有运动学上允许的塌陷机制或屈服线图案的几何形状。根据倾角和触角对完成的外部功和内部能量耗散进行评估，并使用虚功原理确定相应的载荷系数。最终解决方案是通过将相对于倾角和触角的负载系数最小化而获得的。已经产生了基于该方法的计算机程序。通过检查其他人在简单情况下获得的结果来验证其正确性，并通过将其应用于承受点，线，面片和均匀分布载荷的复杂平板来证明其多功能性。

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  • 来源
    《Magazine of Concrete Research》 |2004年第8期|p.487-498|共12页
  • 作者

    A. K. H. Kwan;

  • 作者单位

    Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水泥工业;
  • 关键词

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