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首页> 外文会议>Innovative infrastructures - toward human urbanism : Report >Shear Capacity of Reinforced Concrete Slabs under Concentrated Loads
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Shear Capacity of Reinforced Concrete Slabs under Concentrated Loads

机译：集中荷载作用下钢筋混凝土板的抗剪承载力

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The increasing traffic loads in the last decades and changes in design rules may lead to deficits inrncalculated shear capacity for existing bridges. Most of the present design rules for the shear-bearingrncapacity of members without shear reinforcement were developed based on empirical evaluations ofrnshear databases consisting of beam tests. So far, only few shear tests on slabs have been conducted.rnThus, a research project with an extensive testing programme funded by the Federal HighwayrnResearch Institute of Germany (BASt) was carried out at the Institute of Structural Concrete atrnRWTH Aachen University. This paper presents the experimental results as well as the results of thernparametric finite element studies on the shear capacity of slabs without shear reinforcement underrnconcentrated loads. The tests revealed that the experimental bearing capacities were higher thanrncalculated due to an underestimation of the effective slab width.
机译：在过去的几十年中，交通负荷的增加和设计规则的改变可能导致现有桥梁缺乏计算能力的不足。当前大多数设计的无剪切钢筋构件的抗剪承载力设计规则都是基于对由梁试验组成的抗剪数据库的经验评估得出的。迄今为止，仅对板坯进行了少量的剪切试验。因此，由德国联邦公路科学研究所（BASt）资助的一项具有广泛测试计划的研究项目在亚琛工业大学结构混凝土研究所进行。本文介绍了在集中荷载作用下无抗剪板的抗剪承载力的试验结果以及有限元研究的结果。测试表明，由于对板坯有效宽度的低估，实验承载力高于计算的承载力。

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