中越北仑河二桥主拱箱支架方案设计

Support Design for Main Arch Box of Sino-Vietnam Beilun River II Bridge

中越北仑河二桥主拱箱施工实行跨国合作修建模式,双方各自修建半跨拱桥,具有较高的施工风险。文章针对该桥支架结构、施工技术工艺流程和施工管理协调方面的难点与要求,介绍了该桥主拱箱的特殊支架设计方案,对拱桥的落地支架现浇施工具有一定的借鉴作用。

The main arch box construction of Sino-Vietnam Beilun River II Bridge Construction imple- ments the transnational cooperation construction mode, both sides builds half-span arch bridge each, which has higher construction risk.Aiming at the dimculty and requirements in support structure, con- struction technology process and construction management coordination of this bridge, this article de- scribed the design plan of special support for the main arch box of this bridge,thereby providing the certain reference for cast-in-place construction of consol supports in this bridge.