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首页> 外文会议>International PhD Symposium in Civil Engineering vol.2; 20040616-19; Delft(NL) >Shear capacity of RC beams strengthened with CFRP composites
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Shear capacity of RC beams strengthened with CFRP composites

机译：CFRP复合材料增强RC梁的抗剪承载力

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摘要

This paper presents tests carried out on RC beams strengthened for shear with CFRP strips and fabrics. The aim of the study was to investigate the influence of CFRP strips anchorage on the shear capacity of the beams. The experimental program comprised of five RC beams and was carried out in two phases. The first phase consisted of five double span RC beams with 180 x 360 mm cross section and 5000 mm length. The region of the middle support was strengthened for shear with composite strips bonded on both sides of the beams with two different angles (90 and 60 degrees) and constant 200 mm spacing. All beams failed for shear near the middle support. After the failure the same beams were tested as single span beams, with one support rigid and the other simply supported. In the second phase of tests the external reinforcement was modified. The continuation of tests is also presented.
机译：本文介绍了对用CFRP条和织物进行抗剪加固的RC梁进行的测试。研究的目的是研究CFRP锚固对梁的抗剪承载力的影响。实验程序包括五个RC光束，并且分两个阶段进行。第一阶段包括五个截面为180 x 360 mm，长度为5000 mm的双跨RC梁。通过在梁的两侧以两个不同的角度（90度和60度）和恒定的200 mm间距粘合复合带，增强了中间支撑区域的抗剪力。所有梁均在中间支撑附近失效。失效后，将相同的梁作为单跨度梁进行测试，其中一个支撑为刚性，而另一个简单支撑。在测试的第二阶段，对外部加强筋进行了修改。还介绍了测试的继续。

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