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介绍了现阶段国内外石拱桥加固效果评价方法的发展情况,从结构加固前后桥梁结构的承载能力和正常使用状态提出了针对加固后桥梁评价的强度、刚度、稳定性等3种一级指标,部分指标还有二级评价指标。利用模糊数学分层次评价的方法对指标进行权重组合,得到综合评判指标。结合现役石拱桥加固实例,说明此指标对评价加固桥梁的应用前景。
This paper introduces the development of the evaluation methods for the reinforcement effect of stone arch bridges both at home and abroad at this stage. Based on the carrying capacity and the normal use status of the bridge structure before and after the structural reinforcement, three kinds of first-grade indicators are proposed, including the strength, stiffness and stability of the bridge after reinforcement. Some indicators there are two indicators of evaluation. Fuzzy mathematics hierarchical evaluation method of weight combinations of indicators to obtain a comprehensive evaluation index. Combined with the existing reinforced concrete arch bridge example, the application of this index to evaluate the reinforcement bridge is prospected.