大跨度桥梁索塔钢壳焊接工艺研究

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摘要：根据狮子洋大桥索塔钢壳构件尺寸大、板厚薄、焊缝密集、作业空间小的结构特点，通过焊接工艺试验制定了大量采用机器人自动焊接的工艺方案，研究制定了板单元焊接、节段拼装焊接和桥位焊接的机器人焊接工艺，采取措施控制焊接变形，提高焊接效率，保证焊接质量，为项目焊接生产奠定技术基础。

关键词：钢塔；焊接；机器人；板单元；节段

Research on welding process of steel shell for cable towers of  long-span steel bridges

FAN Junqi1， ZHANG Yingwen2， WU Tianfeng1， XU Xiangjun1

1.Chinarailway Shanhaiguanbridge Group Co，. Ltd.， Qinhuangdao 066205， Hebei， China

2.Guangdong Bay Area Transportation Construction Investment Co.， Ltd.， Guangzhou 511400， Guangdong， China

Abstract： Introduce the overview of the steel shell tower project of the Shiziyang Bridge. Based on the structural characteristics of the Shiziyang steel shell tower， such as large component size， thin plate thickness， dense welding seams， and narrow working space， a welding process experiment was conducted to develop a large-scale robot welding process solution. The robot welding process for plate unit welding， segment assembly welding， and bridge position welding was studied and developed. Measures were taken to control welding deformation， improve welding efficiency， ensure welding quality， and lay a technical foundation for the formal welding production of the project.

Keywords： steel tower; welding; robot; plate element; segment

1 序言

狮子洋通道位于珠江三角洲核心地带，路线全长约 35.1km，主桥狮子洋大桥采用主跨 2180m双层钢桁梁悬索桥，过江段为双层双向八车道高速公路标准。（剩余4111字）