Reinforcement Planning Decision of Old Bridge Based on TOPSIS-AHP Method

The application of technique for order preference by similarity to ideal solution(TOPSIS) and analytic hierarchy process(AHP) in reinforcement scheme optimization for bridge is investigated in order to select the optimal scheme from several primarily feasible ones. This paper calculates every index through AHP and applies the improved TOPSIS method to normalize and sort the evaluation index values. Integrating TOPSIS and AHP may Consider both the subjective intentions of policy makers, but also to a certain extent, to avoid arbitrariness. A real project demonstrates that this method is effective and feasible.