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An Unified Model of Ultimate Capacity of RC Members with Rectangular Section under Combined Actions

机译:组合作用下矩形截面RC构件极限承载力的统一模型

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Reinforced concrete elements with a rectangular section are commonly used in frame structural buildings and bridges. Such reinforced concrete structures failed often with the force combination of axial load, bending, shear and torsion caused by wind and earthquake. However, there are few researches on four loading combination of tension/compression, bending, shear and torsion, especially for the axial force effects on the failure mechanism and bearing capacity of reinforced concrete members. In this paper, a theoretical study and deduction of the unified failure model on the reinforced concrete members with rectangular section under combined axial force, bending, shear and torsion were carried out with the ultimate equilibrium theory. The results of a theoretical analysis were compared with the experimental results of RC members under combined loading actions. Both of the theoretical results and test results showed a good correlation.
机译:具有矩形截面的钢筋混凝土元件通常用于框架结构建筑物和桥梁中。这种钢筋混凝土结构经常因风和地震引起的轴向载荷,弯曲,剪切和扭转的力组合而失效。然而,关于拉伸/压缩,弯曲,剪切和扭转四种载荷组合的研究很少,特别是轴向力对钢筋混凝土构件破坏机理和承载力的影响。利用极限平衡理论,对矩形截面钢筋混凝土构件在轴向力,弯曲,剪力和扭转共同作用下的统一破坏模型进行了理论研究和推导。将理论分析的结果与组合荷载作用下钢筋混凝土构件的实验结果进行了比较。理论结果和测试结果均显示出良好的相关性。

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