十天高速公路某大桥抗水毁设计安全性评价

Safety Evaluation on Anti-Water Damage Design of One Bridge on Shiyan-Tianshui Expressway

桥涵抗水毁设计的安全性评价对于减少高速公路桥涵水毁具有重要意义。将模糊数学方法与桥涵抗水毁设计安全性评价相结合,应用层次分析法确定各项评价指标的权重,建立适合模糊综合评价理论的秦巴山区高速公路桥梁抗水毁设计安全性评价体系。根据二级模糊评判矩阵计算结果,采用最大隶属度法,对十天高速公路某大桥进行安全性评价,判断出该桥梁抗水毁设计安全。

Safety evaluation for anti-water damage design of bridge has very important significance for reducing the water damage of expressway bridge.Combining the fuzzy mathematics theory with safety evaluation of anti-water damage,the weight of each evaluation index is determined by AHP,and a safety evaluation system in allusion to anti-water damage design of expressway bridge in Qin-Ba Mountain is established,which adapts to fuzzy comprehensive evaluation theory.Based on secondary fuzzy evaluation matrix results,using the maximum membership degree method to evaluate the safety of one large bridge on Shiyan-Tianshui Expressway,its anti-water damage design is judged to be safe.