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新型弯起器研制及其对钢铰线力学性能影响Ⅱ:摩阻预应力损失

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Keywords: 桥梁工程,折线配筋先张梁,钢绞线,试验,弯起器,摩擦系数,预应力损失

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Abstract:

为了深入研究弯起器对钢绞线摩阻预应力损失的影响,在折线配筋先张梁新型弯起器研制基础之上,设计了相应试验方案,研究了采用不同导向半径R与弯折角度θ时钢绞线弯折摩阻预应力损失情况,得出R≤50mm或R≥100mm时弯起器弯折摩阻系数μ随R与θ变化相对平缓,而50mm

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