狭窄空间中挂式慢行系统钢梁整体大节段安装施工研究  

RESEARCH ON THE INSTALLATION AND CONSTRUCTION OF LARGE SEGMENTS OF STEEL BEAMS FOR HANGING SLOW MOVING SYSTEMS IN NARROW SPACES

作　　者：吴小雨 Wu Xiao-yu

机构地区：[1]中铁建大桥工程局集团靖江重工有限公司,江苏泰州214500

出　　处：《建筑技术开发》2024年第7期111-114,共4页Building Technology Development

摘　　要：由于九龙湖大桥施工工期紧,桥位施工交叉面多,引桥主体结构施工完成后须安装下方慢行系统,吊装设备站位空间狭窄,技术难度大。研究针对主体结构与慢行系统通过连续T梁呈上下布置,T梁墩柱间距狭窄,且上方主体结构需早于下方慢行系统安装的情况,将慢行系统制作为大节段,合理布置吊点位置,利用桥位现有浮吊双机联动安装慢行系统大节段,通过模拟推演计算角度和水位对安装过程的影响,分析不利工况,优化浮吊站位,解决水上狭窄空间中慢行系统钢梁整体大节段安装施工问题。The construction period of the Jiulonghu Bridge is tight,and there are many construction intersections at the bridge site.After the completion of the main structure of the approach bridge,the installation of the lower slow-moving system results in a narrow space for lifting equipment and high technical difficulty.This study focuses on the situation where the main structure and slow-moving system are arranged vertically through continuous T-beams,with narrow spacing between T-beam piers and columns,and the upper main structure needs to be installed earlier than the lower slow-moving system.The slow-moving system is made into large sections,and the lifting point positions are reasonably arranged.The existing floating crane dual machine linkage is used to install large sections of the slow-moving system at the bridge site.By simulating and deducing the influence of the angle and water level on the installation process,adverse working conditions are analyzed,and the floating crane station position is optimized to solve the problem of overall installation and construction of steel beams in the slow-moving system in narrow spaces above water.

关 键 词：狭窄空间安装 整体大节段 钢梁安装 

分 类 号：TU488[建筑科学—结构工程]