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首页> 外文会议>International Conference on Technology of Architecture and Structure >The Ultimate Shear Bearing Capacity of RC beam Strengthened with SWR External Prestressing under Dead Load Level when Strengthening
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The Ultimate Shear Bearing Capacity of RC beam Strengthened with SWR External Prestressing under Dead Load Level when Strengthening

机译：加强载荷水平下的SWR外部预应力加强RC光束的极限剪切承载力

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摘要

The shear resistant with SWR (steel wire rope) external prestressing is a kind of new type of reinforcement technique. The advantages of the method are ideal reinforcement effect, durability, and convenient construction. So the method has been paid attention by more and more scientists and technical workers. Through the experiment of 1 basic beam and 3 strengthened beams which are in different dead load levels, the influence of damage degree of original beams and the dead load level of strengthened beams are analyzed. The reduction coefficient values of shear capacity under different dead load level are researched. The research is shown that: with the dead load level increasing, the improve degree of shear capacity of strengthened concrete beams is smaller. The mathematical model is established, which is about dead load level and reduction coefficient of shear capacity of strengthened concrete beams. The result is to take 0.75 as the reduction coefficient of shear capacity. The value is reasonable in calculating the shear bearing capacity of strengthened beams under dead load.
机译：使用SWR（钢丝绳）外部预应力抗剪切是一种新型的加固技术。该方法的优点是理想的增强效果，耐用性和方便的结构。因此，越来越多的科学家和技术人员，该方法得到了关注。通过实验1基本光束和3个强化梁，这些梁在不同的死载水平，分析了原始梁的损坏程度和加强光束的死载水平的影响。研究了不同死载水平下剪切容量的减少系数值。研究表明：随着载荷水平的增加，加强混凝土梁的提高剪切容量较小。建立了数学模型，这是关于加强混凝土梁的剪切容量的死载水平和降低系数。结果是将0.75作为剪切容量的减少系数。该值在计算死载下的加强梁的剪切承载力方面是合理的。

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