提篮式系杆拱桥测量控制技术  

Measurement and control technology of basket tied arch bridge

作　　者：吴斌 Wu Bin(China Railway 14th Bureau Group Second Engineering Co.,Ltd.,Tai’an Shandong 271000,China)

机构地区：[1]中铁十四局集团第二工程有限公司,山东泰安271000

出　　处：《山西建筑》2024年第4期178-180,188,共4页Shanxi Architecture

摘　　要：近年来系杆拱桥被广泛应用于跨路、跨河等大跨度桥梁施工中,提篮式系杆拱相对于直立式系杆拱桥坐标计算更为复杂,既需要考虑纵坡对拱结构纵距的影响,又要考虑拱横向内倾内横距的影响。结合新建石家庄至衡水至黄骅港城际铁路李天木跨捷地减河系杆拱桥工程实例,论述控制网布设、系梁施工、吊杆预埋、拱肋支架安装、拱肋安装、吊杆安装等测量工作的控制要点。In recent years,tied arch bridges have been widely used in the construction of large-span bridges such as road and river crossings.The calculation of coordinates for basket tied arch bridges is more complex compared to vertical tied arch bridges.It is necessary to consider not only the influence of longitudinal slope on the longitudinal distance of the arch structure,but also the impact of the arch's lateral inclination and internal transverse distance.Based on the example of the Li Tianmu Cross Jiedi Reduced River Tied Arch Bridge project on the newly built Shijiazhuang Hengshui Huanghua Port intercity railway,this paper discusses the control points for measurement work such as control network layout,tie beam construction,suspension rod pre embedding,arch rib support installation,arch rib installation,and suspension rod installation.

关 键 词：控制网 投影 拱脚 吊杆 拱肋 

分 类 号：TU997[建筑科学—市政工程]