CAJ | 학술논문

中山市二环快速路是在既有道路基础上提升改造的城市环线。其北段与东段(既有S111)相交于中山港大桥，在本次改造时，在该处设置群乐互通式立交。详细分析中山港大桥新旧桥的结构型式及病害情况，明确新增群乐互通式立交设计的边界条件及影响因素，并深入探讨群乐互通式立交方案。
중산시이배쾌속로시재기유도로기출상제승개조적성시배선。기북단여동단(기유S111)상교우중산항대교，재본차개조시，재해처설치군악호통식입교。상세분석중산항대교신구교적결구형식급병해정황，명학신증군악호통식입교설계적변계조건급영향인소，병심입탐토군악호통식입교방안。
The Second Ring Expressway of Zhongsan City is an urban ring promoted and reconstructed on the existing road, which north section and east section (existing S111) intersect at Zhongshangang Bridge. In this reconstruction, Qunle Interchange is set here. This paper analyzes structural types and diseases of new and old bridges of Zhongshangang Bridge in detail, clarifies boundary conditions and influence factors for design of new Qunle Interchange, and deeply probes into the schemes for Qunle Interchange.