福州鹅头溪大桥桥型方案比选  

The Comparison and Choice of E’tou River Bridge Type in Fuzhou City

作　　者：林驰 LIN Chi

机构地区：[1]福建省建筑设计研究院有限公司,福建福州350001

出　　处：《福建建设科技》2023年第3期86-90,共5页Fujian Construction Science & Technology

摘　　要：鹅头溪大桥跨越现状鹅头溪,是沿溪大道桥涵工程的控制性节点工程,从通航需求和现状河道条件方面考量,本桥无设置超大跨径桥梁的需要。鹅头溪大桥提出了波形钢腹板-平钢底板钢混组合梁桥、预应力混凝土连续刚构桥和下承式斜靠拱桥+预制装配小箱梁桥三种桥型方案。从桥型方案的结构性能、施工工期、视觉效果等方面进行分析,最终确定采用波形钢腹板-平钢底板钢混组合梁桥方案,该桥型方案负弯矩区采用钢混组合桥面板结构,改善了桥面板的受力性能,提高了耐久性能。该结构受力体系合理、整体性能好、造型轻盈,与周边环境相协调,视觉效果良好。The E’tou River Bridge spanning the current E’tou River is the control engineering of Bridge and culvert engineering of Yanxi Road.Considering the navigation requirements and current river conditions,there is no need to set up a super-span bridge.The E’tou River Bridge has proposed three bridge types:the steel-concrete composite girder bridge with corrugated steel web and flat steel bottom plate,the prestressed concrete continuous rigid frame bridge,and the throughleaning arch bridge+precast assembled small box girder bridge.Analyze the structural performance,construction period,visual effects,the E’tou River Bridge selects the scheme of steel-concrete composite beam bridge with corrugated steel web and flat steel bottom plate.The negative bending moment zone of this bridge type scheme adopts steel web and steel-concrete composite bridge panel structure,which improves the mechanical performance of the bridge panel and the durability of the bridge panel.The structure has reasonable force system,good overall performance,light weight,coordination with the surrounding environment,and good visual effect.

关 键 词：桥梁方案比选 波形钢腹板组合梁桥 连续刚构桥 下承式拱桥 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]