Abstract: Taking the complicated condition of urban interchange-Chongqing Huangjuewan as a research project, the comprehensive evaluation system of AHP-FIE was applied to the construction method of optimal selection in the bridge superstructure. An index set model of five aspects which includes economy, risk, technology, application and the limited time was established to make the combination of quantitative and qualitative analysis. The Bailey beam door support was proved to be the best, and the most optimal scheme in the Huangjuewan interchange construction. The evaluation value is 0.396.

Key words: bridge engineering, AHP-FIE, urban interchange, construction method, optimal selection

摘要： 以复杂条件下的城市立交——重庆黄桷湾立交为背景，将AHP-FIE综合评价体系运用到桥梁上部结构施工方法的优化选择中，建立了包括经济、风险、工艺、适用和工期5个方面指标集 的模型，作出定量与定性相结合的分析，综合得到黄桷湾立交最佳、最优的施工方案是贝雷梁门型支架，其评价值为0.396。

关键词: 桥梁工程, AHP-FIE, 城市立交, 施工方法, 优化选择