【摘要】 在三峡库区公路危桥调查中发现现服役石拱桥,经过十几年的通车运营,出现了各种各样的病害,严重影响其使用安全性。本文采用多级模糊综合评价方法,考虑多种因素引起的承载能力下降,引入折减系数,可得到带病害工作的桥梁结构的结构抗力值,再与结构的外荷载对比,进行桥梁安全性评价。更多还原

【Abstract】 The wide range of survey of road dangerous existing stone arch bridge in service in Three Gorges reservoir area,reveals that there has been a wide range of diseases,which seriously affected the safety of their use.A wide range of diseases,from different angles,respectively,to varying degrees,affected the performance of the stone arch bridge.In this paper,multi-level fuzzy synthetic evaluation method,a variety of factors to consider the carrying capacity decline,it introduce a reduction factor,can work with diseases of the structure of the bridge structure of the resistance value,and then loading and structure comparison,for safety evaluation.更多还原