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Assessment of the flexural capacity of RC beam/column elements allowing for 3d effects

机译：评估RC梁/柱单元的抗弯能力以考虑3d效果

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摘要

The paper describes an experimental investigation of the deformational response and the stress conditions developing in the compressive zone of reinforced concrete beam-like structural elements in bending and bending combined with axial force. The results obtained confirm the findings of earlier work and demonstrate that the compressive zone at its ultimate-limit state is characterised by the development of triaxial rather than uniaxial - as widely considered - stress conditions. These findings form the basis for introducing a simple modification in the method currently used for calculating flexural capacity and it is shown that, by complementing the proposed method with an approach that takes into account the effect of yielding of the compression reinforcement on structural behaviour, it is possible to achieve predictions of flexural capacity which are considerably closer to experimentally established values than the values obtained through the use of currently adopted methods.
机译：本文描述了钢筋混凝土梁状结构构件在受弯和受轴力作用下的受压区域中的变形响应和应力条件发展的实验研究。获得的结果证实了早期工作的发现，并证明了处于极限极限状态的压缩区的特征在于三轴而不是单轴（被广泛认为的）应力条件的发展。这些发现构成了对当前用于计算抗弯能力的方法进行简单修改的​​基础，结果表明，通过将所提出的方法与考虑了抗压钢筋屈服对结构性能的影响的方法相辅相成，它可以可以实现抗弯能力的预测，该预测比通过使用当前采用的方法获得的值更接近于实验确定的值。

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