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连续配筋混凝土路面收缩应力及参数敏感性分析 被引量:2

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摘要 连续配筋混凝土路面(简称CRCP)受到钢筋和基层的约束,在温降和混凝土干缩作用下产生收缩应力,当收缩应力超过连续配筋混凝土(简称CRC)强度时便会开裂。该文建立了CRCP在温降和干缩作用下的应力分析模型,得到收缩应力表达式及应力沿公路纵向分布,分析混凝土强度、干缩、热膨胀系数、基层摩阻、钢筋与混凝土之间的粘结刚度等参数对CRCP收缩应力影响的敏感性。结果表明:收缩应力在板中最大,裂缝处为0;混凝土强度、干缩、热膨胀系数、基层摩阻、钢筋与混凝土之间的粘结刚度是影响CRCP开裂的关键参数。
出处 《中外公路》 北大核心 2012年第3期90-95,共6页 Journal of China & Foreign Highway
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