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倾斜箍筋RPC简支梁抗剪性能试验研究

Sichuan Building Science(2018)

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Abstract
为了研究箍筋倾斜角度对RPC简支梁抗剪性能的影响,进行了4 根不同倾角箍筋RPC简支梁的抗剪试验.试验结果表明:箍筋倾斜放置显著改善了试验梁的抗剪性能,有效限制了斜裂缝的开展,提高了抗剪承载力;改变箍筋倾角对试验梁斜截面开裂荷载影响不大,但其斜裂缝宽度随箍筋倾角的减小而减小.基于塑性理论,构建桁架模型考虑箍筋倾斜角度对抗剪承载力的影响,推导了抗剪承载力建议公式,将试验数据代入进行验算,计算值与试验值吻合良好.
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