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首页> 外文期刊>Beton- und Stahlbetonbau >Influence of Shear Friction on the Shear Bearing Capacity. Experimental Analysis on Lightweight Aggregate Concrete and High-Strength Concrete.
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Influence of Shear Friction on the Shear Bearing Capacity. Experimental Analysis on Lightweight Aggregate Concrete and High-Strength Concrete.

机译：剪力对剪力承载力的影响。轻集料混凝土和高强度混凝土的试验分析。

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摘要

When calculating the shear bearing capacity regarding to DIN 1045-1 all load bearing mechanisms beside the truss model are summarized in the concrete shear bearing contribution. In the last years an active discussion arose on the influence of the shear friction component on the shear contribution in Lightweight Aggregate Concrete (LWAC) and High-Strength Concrete (HSC). In research projects (1), (2), (3) the design rules for the shear capacity were extended to the application of LWAC and HSC. Main objectives were the crack distribution, the local and global crack topography, the crack widths and the parallel crack slip. The tests at the University of Leipzig and at the Aachen University of Technology performed on reinforced concrete and prestressed concrete beams with and without shear reinforcement showed, that the influence of the shear friction component has been partly overestimated in the present design rules to determine the shear bearing capacity.
机译：在根据DIN 1045-1计算抗剪承载力时，混凝土抗剪承载力中总结了除桁架模型外的所有承载机制。近年来，关于轻质集料混凝土（LWAC）和高强度混凝土（HSC）中剪切摩擦分量对剪切贡献的影响引起了活跃的讨论。在研究项目（1），（2），（3）中，剪切能力的设计规则已扩展到LWAC和HSC的应用。主要目标是裂纹分布，局部和全局裂纹形貌，裂纹宽度和平行裂纹滑移。莱比锡大学和亚琛工业大学在有或无抗剪钢筋的钢筋混凝土和预应力混凝土梁上进行的试验表明，在确定剪切力的现行设计规则中，剪切摩擦分量的影响已被部分高估了。承载能力。

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