首页> 外文会议>EUR 21431; Final Conference of Cost Action C12; 20050120-22; Innsbruck(AT) >Strengthening timber beams with prestressed artificial fibres: the delamination problem
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Strengthening timber beams with prestressed artificial fibres: the delamination problem

机译:用预应力人造纤维加固木梁:分层问题

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Delamination is a major problem when glulam beams are to be strengthened by attaching prestressed, high-strength fibres on the tensile face. In a COST Project, the authors analyse two possible solutions. The first solution approach involves the use of a special device to attach the prestressed fibre in stages starting from the centre of the beam. The second approach involves the development of a "ductile" adhesive to spread the prestressing force over a larger area at the ends of the beam. The tests with the prestressing device yielded satisfactory results. The tests with different adhesive mixes yielded some interesting results of a pioneering nature, however the anchorage strength fell short of expectations. Themes could be identified for more research work.
机译:当通过在张拉面上附着预应力的高强度纤维来增强胶合梁时,分层是一个主要问题。在一个COST项目中,作者分析了两种可能的解决方案。第一种解决方案涉及使用一种特殊的设备,从光束中心开始,分阶段连接预应力光纤。第二种方法涉及开发“延展性”粘合剂,以将预应力分散到梁端的较大区域。用预应力装置进行的测试结果令人满意。用不同的粘合剂混合物进行的试验产生了一些有趣的开创性结果,但是锚固强度没有达到预期。可以确定主题以进行更多的研究工作。

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