JQJ180型架桥机架设210 m小半径曲线桥25 m预制T梁施工技术

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摘  要：结合某高速公路增设北互通工程210 m小半径曲线桥25 m长预制T梁架设实践，对双导梁在小半径桥梁中采用拨轨道、搭设临时支墩2种方法完成前移转向的比较，分析双导梁架桥机在大跨径小半径曲线桥架设的可行性。重点介绍架桥机拼装、架桥机前移、喂梁、T梁安装和架桥机过孔转向等施工工艺。

关键词：桥梁工程；架桥机；小半径；曲线桥；T梁；架设；施工技术

中图分类号：U445.4      文献标志码：A          文章编号：2095-2945（2024）10-0185-04

Abstract： Based on the practice of erecting 25-meter-long precast T-beams of a 210-meter small radius curved bridge in an expressway， this paper compares the two methods of track shifting and temporary pier erection of double-guide beams in small-radius bridges， and analyzes the feasibility of erecting double-guide beam bridge erection machines in long-span and small-radius curved bridges. This paper mainly introduces the construction technology of bridge erecting machine， such as assembling， forward moving， beam feeding， T beam installation， through-hole steering of bridge erecting machine， etc.

Keywords： bridge engineering; bridge erection machine; small radius; curved bridge; T beam; erection; construction technology

目前我国路网建设高速发展纵横交错，产生了众多的互通区、立交桥梁和匝道桥。（剩余5956字）