关于桥梁加固方案优选方法的探讨

Multi-Target Evaluation of Optimum Selection about Reinforcement Schemes of Bridge

以提高加固方案多目标综合评价结果的效率为目的,在多指标方案评价方法和直观性评价两方面对多指标方案优选方法在桥梁加固方案中进行了研究.首先在研究了多目标综合评价法的基础上,提出了体现加固方案评价指标对比的基于等效多边形的等效面积评价法,并进行了改进.在桥梁加固方案多目标层次分析评价实例中利用提出的优选方法对加固方案进行了优选,结果验证了直观性等效面积评价的优选方法方便快速获取满意方案的有效性.

The reinforcement of bridge is related to the operation status of road.The effectiveness of reinforcement is directly related to the performance of road＇s interrupt service time.In order to improve the effectiveness of estimation of reinforcement by multi objective comprehensive evaluation,methods for multi objective concept comparison and evaluation with the support of visual auxiliary evaluation are studied in this article.First,on the basis of the research of methods for multi objective concept comparison and evaluation,an equivalenta rea method based on equivalent polygons is proposed and further improved,which emphasized the comparison of evaluation index for reinforcement scheme.The proposed preferred selection method is applied to the multi objective optimiza-tion of the reinforcement scheme of a bridge,which validates the effectiveness of the method：a satisfactory concept is rapidly and conveniently obtained by means of the preferred selection method with visual equivalent area evalua-tion support.