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首页> 外文会议>Third Diana World Conference, Oct 9-11, 2002, Tokyo, Japan >Shear behavior of reinforced ultra light weight concrete beams with shear reinforcement
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Shear behavior of reinforced ultra light weight concrete beams with shear reinforcement

机译：剪力加固超轻混凝土梁的抗剪性能

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摘要

This study concerns the shear behavior of beams with shear reinforcement using the ultra light weight aggregate, comparing with that of beams using normal weight aggregate. The results of this study can be summarized as follows: (1) The ultimate shear strength of an ultra light weight concrete beam with shear reinforcement is calculated as the sum of the concrete component and the shear reinforcement component based on the modified truss theory, using 0.57 as the reduction factor of the concrete component. (2) The proposed nonlinear FEM, that modelizes the longitudinal and transverse reinforcements as embedded rebar elements, can very adequately simulate the structural behavior such as the development of cracks, the strain of rebar/concrete and deformation under the load and the ultimate strength, irrespective of the kinds of concrete.
机译：这项研究关注的是使用超轻骨料的抗剪加固梁的抗剪性能，与使用普通重量骨料的梁的抗剪性能相比。研究结果可以归纳如下：（1）采用修正的桁架理论，利用修正的桁架理论，计算出了抗剪超轻混凝土梁的极限抗剪强度为混凝土成分和抗剪成分的总和。混凝土构件的折减系数为0.57。 （2）所提出的非线性有限元模型将纵向和横向钢筋建模为嵌入式钢筋元件，可以非常充分地模拟结构行为，例如裂纹的发展，钢筋/混凝土的应变以及在载荷和极限强度下的变形，与混凝土的种类无关。

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