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首页> 外文期刊>International Journal of Technology >Wire Rope Flexural Bonded Strengthening System on RC-Beams: A Finite Element Simulation
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Wire Rope Flexural Bonded Strengthening System on RC-Beams: A Finite Element Simulation

机译：RC梁上的钢丝绳弯曲粘结加强系统：有限元模拟

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We conducted a finite element simulation by using a computer program, ATENA, to verify the behavior of T-section reinforced concrete beams strengthened by bonded wire ropes in the negative moment region with a pretensioned initial prestressing force; we compared this behavior with that in experimental tests. The simulation was performed on five models consisting of one unstrengthened beam and beams strengthened by wire ropes with initial prestressing forces of 0%, 10%, 20%, and 30%. We found that the capacity of a flexural load had the ratios to the experimental results close to 1 — that is, 1.25, 1.16, 1.12, 1.01, and 1.10, for UB, SB1, SB2, SB3, and SB4, respectively. The ratios of effective stiffness, as the result of the simulation, to the experimental results were 1.45, 1.08, 1.76, 2.13, and 2.46 for UB, SB1, SB2, SB3, and SB4, respectively. We also observed that crack propagation developed in the finite element simulation indicated that all models underwent flexural failure.
机译：我们使用计算机程序ATENA进行了有限元模拟，以验证预应力为负值的T型截面钢筋混凝土梁在负弯矩区域中的作用。我们将此行为与实验测试进行了比较。在五个模型上进行了仿真，包括一个未加强的梁和由钢丝绳加固的梁，初始预应力分别为0％，10％，20％和30％。我们发现，弯曲载荷的容量与实验结果的比率接近1，即UB，SB1，SB2，SB3和SB4分别为1.25、1.16、1.12、1.01和1.10。仿真结果表明，UB，SB1，SB2，SB3和SB4的有效刚度与实验结果的比率分别为1.45、1.08、1.76、2.13和2.46。我们还观察到在有限元模拟中出现的裂纹扩展表明所有模型都经历了弯曲破坏。

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