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预应力混凝土结构碳化腐蚀参数敏感性分析 被引量:2

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摘要 基于碳化深度预测模型,使用已有的参数敏感性分析方法,研究了碳化腐蚀参数对混凝土结构时变性能评估的重要性。由于概率预测模型能够考虑CO2排放、环境、结构尺寸、腐蚀电流密度、预应力筋布置、保护层厚度和劣化机制的不确定性和变异性,发展了可靠度计算模型来定量地计算碳化腐蚀参数对结构时变性能的影响。研究表明:对于预应力混凝土结构,活载模型、混凝土保护层厚度、混凝土抗压强度和荷载横向分布系数是最重要的影响参数。
作者 赵虹
出处 《中外公路》 北大核心 2009年第4期225-228,共4页 Journal of China & Foreign Highway
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