中文核心期刊
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中国科技核心期刊
RCCSE中国核心学术期刊
重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 1991, Vol. 10 ›› Issue (1): 78-86.

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钢筋混凝土梁(板)桥的几何非线性分析

贺栓海1, 张翔2   

  1. 1. 西安公路学院;
    2. 广东省公路勘察设计院
  • 收稿日期:1990-04-09 出版日期:1991-02-25 发布日期:2016-11-09
  • 作者简介:贺性海,男,28岁,助教。

The Geometric Nonlinear Analysis of Reinforced-Concrete Girder and Slab Bridges

He Shuanhai1, Zhang Xiang2   

  1. 1. Xi'an Institute of Highway, Xi'an;
    2. Guangdong Highway Design Institute, Guangzhou
  • Received:1990-04-09 Online:1991-02-25 Published:2016-11-09

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摘要： 比较成熟的基于弹性理论的钢筋混凝土梁(板)桥静力分析结果不能很好地反映梁(板)的实际受力情况。针对这一实际问题,本文用有限条法分析了钢筋混凝土梁(板)桥的几何非线性问题,建立了"正交异厚均质板"模型,运用Mindlin板理论,考虑了剪切变形的影响,基于最小势能原理建立了非线性平衡方程,并给出方程的解法和等效刚度的求法。最后用算例与其它方法进行了比较。

关键词: 正变异厚均质板, 几何非线性分析, 等效刚度, 有限条

Abstract: The results of static analysis of reinforced-concrete girder and slab bridges by elasticity theory cannot accord better with facts. For this reason, in this paper, we analyse the geometric nonlinearity of reinforced-concrete girder and slab bridges, propose the model of "orthogonal different thickness uniform slab", use the theory of Mindlin slab, consider the effect of shearing deflection, derive the nonlinear equilibrium equation by the principle of minimum potential energy, and give the solutions of the equation and eqivalent stiffness. Finally, the method of this paper is compared with others by numerical examples.

Key words: orthogonal different thickness uniform slab, geometric nonlinear analysis, equvalent stiffness, finite strip method