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既有石板拱桥的评估及鉴定方法研究

, PP. 89-93

Keywords: 桥梁工程,石板拱桥,评估,权重修正,检算系数

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Abstract:

为了有效提高石拱桥状况评价的准确性,提出针对石拱桥承载能力详细的评估和鉴定计算方法.考虑石板拱桥拱上建筑联合作用、桥梁破损特点及实际运营荷载,对如何建立较为符合实际的桥梁计算模型进行了研究;建立了针对石拱桥的技术状况评估模型,对桥梁各评估元素的初始权重及技术状况评价标准进行初步研究;根据各评估元素状态对其元素权重加以修正并综合确定承载能力检算系数Z1.最后,以实际桥梁工程为背景,给出了计算实例,结果表明本文方法具有较好的工程实用性.

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