梁拱组合体系桥施工监控  

Construction Monitor & Control of Beam & Arch Combined Bridge

作　　者：龙湘敏[1] 

机构地区：[1]铁道第五勘察设计院,北京102600

出　　处：《中国市政工程》2007年第5期37-39,44,共4页China Municipal Engineering

摘　　要：施工监控在结构新颖梁拱组合体系桥梁施工中是必要的。以北京通州北运河大桥为例,阐述了此类桥梁施工监控的目的、要点及方法。通过建立有限元模型进行施工模拟,分析了不同施工方案的优缺点。根据实测数据和理论计算结果,表明温度作用对该梁拱组合体系桥结构受力的影响较大,温度效应也应引起足够重视。It is important and necessary to monitor and control the construction process for a new beam and arch combined bridge.The Tongzhou North Canal Bridge is taken as the practical example to introduce the purpose,crux and method of construction monitor of bridges.By using the finite element method,different actual construction processes are simulated to compare their advantages and disadvantages.According to the results of measured data analysis and theoretical calculation,temperature effect has a big effect on the structure of the beam and arch combined bridge,and we should pay attention to it.

关 键 词：梁拱组合体系桥 施工监控 体外预应力 施工方案 温度 

分 类 号：U448.205.4[建筑科学—桥梁与隧道工程]