JQJ180型架橋機(jī)架設(shè)210 m小半徑曲線橋25 m預(yù)制T梁施工技術(shù)

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摘  要：結(jié)合某高速公路增設(shè)北互通工程210 m小半徑曲線橋25 m長(zhǎng)預(yù)制T梁架設(shè)實(shí)踐，對(duì)雙導(dǎo)梁在小半徑橋梁中采用撥軌道、搭設(shè)臨時(shí)支墩2種方法完成前移轉(zhuǎn)向的比較，分析雙導(dǎo)梁架橋機(jī)在大跨徑小半徑曲線橋架設(shè)的可行性。重點(diǎn)介紹架橋機(jī)拼裝、架橋機(jī)前移、喂梁、T梁安裝和架橋機(jī)過孔轉(zhuǎn)向等施工工藝。

關(guān)鍵詞：橋梁工程；架橋機(jī)；小半徑；曲線橋；T梁；架設(shè)；施工技術(shù)

中圖分類號(hào)：U445.4      文獻(xiàn)標(biāo)志碼：A          文章編號(hào)：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

目前我國路網(wǎng)建設(shè)高速發(fā)展縱橫交錯(cuò)，產(chǎn)生了眾多的互通區(qū)、立交橋梁和匝道橋。（剩余5956字）