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Construction method of oversized and overweight steel beam barge large-section integral erection suspension splicing method
The invention relates to a construction method of an oversized and overweight steel beam barge large-section integral erection suspension splicing method. The construction method comprises the steps of foundation, main tower and pier body construction and pier side bracket installation. And synchronously constructing a side-span steel beam assembly bracket on the side A, a steel beam sliding bracket on the side B and a steel beam pushing temporary pier. And steel beam splicing is conducted on the side span side of the first side, steel box beams are spliced on the second side in a suspended mode, the steel box beams are pushed to the second side step by step, and construction of the side span steel box beams on the two sides is completed. Each pier top steel box girder is synchronously constructed, main span steel box girders on the first side and the second side are synchronously spliced in a suspended mode, a layer of stay cables is hung after each hoisting unit is spliced in a suspended mode, and a girder erecting crane moves forwards by the length of a girder section. And the step is repeated until the side span closure section is erected, and side span closure is completed. The main span steel beams continue to be spliced in a suspended mode, the same side span is erected till mid-span closure is achieved, and mid-span closure is completed. A temporary structure support does not need to be arranged in the middle of the main span, operability is high, construction is convenient and fast, economy and reasonability are achieved, and the method has popularization value in large-section overall erection suspension splicing method construction.
本发明涉及一种超大超重钢梁驳船大节段整体架设悬拼法施工方法,包括:基础及主塔、墩身施工,安装墩旁托架。同步施工甲侧边跨钢梁拼装支架、乙侧钢梁滑移支架和钢梁顶推临时墩。甲侧边跨侧进行钢梁拼装,乙侧悬拼钢箱梁,并逐步向乙侧顶推钢箱梁,完成两侧边跨钢箱梁施工。分别同步施工各墩顶钢箱梁,同步悬拼甲乙两侧主跨钢箱梁,每悬拼完一个吊装单元后挂设一层斜拉索,架梁吊机前移一个梁段长度。重复本步骤,直至架设至边跨合龙段,完成边跨合龙。继续悬拼主跨钢梁,方法同边跨架设,直至架设至跨中合龙,完成中跨合龙。本发明无需在主跨跨中设置临时结构支撑,操作性强,施工便捷,经济合理,在大节段整体架设悬拼法施工中具有推广价值。
Construction method of oversized and overweight steel beam barge large-section integral erection suspension splicing method
The invention relates to a construction method of an oversized and overweight steel beam barge large-section integral erection suspension splicing method. The construction method comprises the steps of foundation, main tower and pier body construction and pier side bracket installation. And synchronously constructing a side-span steel beam assembly bracket on the side A, a steel beam sliding bracket on the side B and a steel beam pushing temporary pier. And steel beam splicing is conducted on the side span side of the first side, steel box beams are spliced on the second side in a suspended mode, the steel box beams are pushed to the second side step by step, and construction of the side span steel box beams on the two sides is completed. Each pier top steel box girder is synchronously constructed, main span steel box girders on the first side and the second side are synchronously spliced in a suspended mode, a layer of stay cables is hung after each hoisting unit is spliced in a suspended mode, and a girder erecting crane moves forwards by the length of a girder section. And the step is repeated until the side span closure section is erected, and side span closure is completed. The main span steel beams continue to be spliced in a suspended mode, the same side span is erected till mid-span closure is achieved, and mid-span closure is completed. A temporary structure support does not need to be arranged in the middle of the main span, operability is high, construction is convenient and fast, economy and reasonability are achieved, and the method has popularization value in large-section overall erection suspension splicing method construction.
本发明涉及一种超大超重钢梁驳船大节段整体架设悬拼法施工方法,包括:基础及主塔、墩身施工,安装墩旁托架。同步施工甲侧边跨钢梁拼装支架、乙侧钢梁滑移支架和钢梁顶推临时墩。甲侧边跨侧进行钢梁拼装,乙侧悬拼钢箱梁,并逐步向乙侧顶推钢箱梁,完成两侧边跨钢箱梁施工。分别同步施工各墩顶钢箱梁,同步悬拼甲乙两侧主跨钢箱梁,每悬拼完一个吊装单元后挂设一层斜拉索,架梁吊机前移一个梁段长度。重复本步骤,直至架设至边跨合龙段,完成边跨合龙。继续悬拼主跨钢梁,方法同边跨架设,直至架设至跨中合龙,完成中跨合龙。本发明无需在主跨跨中设置临时结构支撑,操作性强,施工便捷,经济合理,在大节段整体架设悬拼法施工中具有推广价值。
Construction method of oversized and overweight steel beam barge large-section integral erection suspension splicing method
超大超重钢梁驳船大节段整体架设悬拼法施工方法
ZHANG YANNIAN (author) / XIA JUHONG (author) / WANG QINGJIE (author) / ZHANG LIN (author) / SHANG YUNZHI (author)
2024-01-05
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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