應(yīng)用研究 2025年 第卷 第18期
DOI: 10. 7672 / sgjs2025180057
大跨度斜拉橋鋼混疊合梁全斷面頂推技術(shù)
楊圣峰，李響，劉大成，任初君
作者簡(jiǎn)介：
楊圣峰，高級(jí)工程師，國(guó)家一級(jí)注冊(cè)建造師，E-mail:865022340@ qq. com作者單位：
中交一公局集團(tuán)有限公司，北京 100024基金項(xiàng)目：
?中交一公局集團(tuán)有限公司科技研發(fā)項(xiàng)目（KJYF-2023-A-02,KJYF-2025-A-01）摘要：
以沾臨公路黃河大橋?yàn)橐劳校摌驗(yàn)橹骺?442m 的雙塔雙索面鋼混疊合梁斜拉橋。該工程采用鋼混疊合梁整體頂推方法施工，在邊墩搭設(shè)拼裝及頂推作業(yè)平臺(tái)，拼裝鋼梁并疊合混凝土橋面板，拼裝平臺(tái)上完成節(jié)段疊合梁拼裝，滑移至頂推區(qū)域分節(jié)段頂推，并在頂推范圍搭設(shè)臨時(shí)頂推支墩。該頂推施工方法解決了因黃河中下游區(qū)域不通航，大節(jié)段鋼梁原位吊裝節(jié)段運(yùn)輸難題，節(jié)約了施工用地，減少了拼裝作業(yè)區(qū)域，管理難度降低，降低了高空作業(yè)風(fēng)險(xiǎn)，提高了施工工效。鋼混疊合梁整體頂推施工技術(shù)既保證了施工過(guò)程中安全，又降低了工程造價(jià)，且縮短了施工工期。
English：
Based on Zhanhua-Linzi Highway Yellow River Bridge, this bridge is a double-pylon anddouble-plane steel-concrete composite girder cable-stayed bridge with a main span of 442m. The wholeincremental launching construction method of steel-concrete composite girder is adopted in the project,the assembling and incremental launching platform is built on the side span, the steel girder is assembledand the concrete deck is laminated, and the segmental composite girder assembly is completed on theassembling platform, sliding to push-off area and setting up temporary push-off abutment in push-off area.The incremental launching construction method solves the problem of large-section steel girder in-situhoisting section due to the non-navigation of the middle and lower reaches of the Yellow River, saves theconstruction land, reduces the assembly operation area, reduces the difficulty of management, reducesthe risk of high-altitude operation, and improves the construction efficiency. The integral incrementallaunching construction technology of steel-concrete composite girder not only ensures the safety in theconstruction process, but also reduces the project cost and shortens the construction period.