大斜度分离式立交桥设计探讨

Discussion on Design of Separated Crossroad Bridge with Big Angle

结合平临高速公路某分离式立交桥的施工实践,采用方案比选的方法,对大斜度分离式立交桥的桥跨布置、上部及下部结构形式进行探讨,得出在满足结构使用和美观要求的前提下,以最小的跨径跨越被交道,达到降低工程造价的目的的设计方案,表明双箱单室结构在分离式立交桥中具有很好的应用前景。

Combined with construction of a separated crossroad bridge of Pinglin expressway, many schemes are compared, and the layout of bridge span and structure of bridge are discussed. On the premise of meeting structure and beauty requirements, the best scheme is striding over the road by least span to debase the cost of the engineering. It shows that the structure of twin-box room should be widely applied.