一种梁拱组合的结构设计——以某七孔桥为例  

Design of a Beam-arch Composite Structure for a Seven-span Bridge

作　　者：董东坡 高飞 DONG Dongpo;GAO Fei(Southwest Design and Research Institute of China Municipal Engineering Co.,Ltd.,Chengdu 610213,China)

机构地区：[1]中国市政工程西南设计研究总院有限公司,四川成都610213

出　　处：《城市道桥与防洪》2025年第1期119-122,共4页Urban Roads Bridges & Flood Control

摘　　要：以秦皇河国家湿地生态提升工程中某七孔桥为例,提出一种新型的梁拱组合结构思路,拱作为连续梁桥墩,拱顶设置支座,称之为拱墩连续梁,此结构可完美实现连拱桥景观效果,且梁拱分离,受力明确清晰,便于施工,是一种合理可用的新型的梁拱组合体系,总结该桥的结构设计及构造细节,通过建立计算模型,分析了3种梁拱组合方案,并最终确定新型梁拱组合方案,对于景观连拱桥的设计提供技术借鉴。Taking a seven-span bridge of the Qinhuanghe National Wetland Ecological Improvement Project as an example,a new idea of beam-arch composite structure is proposed.The arch is a continuous beam pier and the support is set at the vault,which is called as the arch-pier continuous girder.This structure can perfectly realize the landscape effect of the continuous arch bridge,the beam and arch are separated,and the force is clear.This structure is convenient for construction,which is a reasonable and usable new type of beam-arch combination system.The structural design and construction details of this bridge are summarized.The calculation model is established to analyze three beam-arch composite schemes,and finally,the new beam-arch composite scheme is determined,which provides the technical reference for the design of landscape continuous arch bridges.

关 键 词：桥梁工程 景观桥 连拱桥 梁拱组合结构 拱形桥墩 

分 类 号：U445[建筑科学—桥梁与隧道工程]