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巨型钢框架-拉索支撑结构中拉索的抗侧机理

DOI: 10.6052/1000-0879-13-273, PP. 180-184

Keywords: 巨型钢框架,预应力拉索,模型试验,抗侧机理

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Abstract:

研究巨型钢框架-拉索支撑结构中预应力拉索的抗侧机理,为确定拉索参数提供理论依据.基于预应力的作用形态及力学原理分析得到预应力拉索的抗侧机理,推导了预应力拉索抗侧刚度理论公式.从模型试验的角度进一步研究,将模型试验的结果与理论推导及数值分析的结果进行对比分析,最终验证了预应力拉索的抗侧机理预应力为柔性拉索建立轴向刚度和稳定性,使预紧过的拉索既可承受拉力,也可承受压力,从而为结构提供弹性约束支撑.

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