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A platform for research: civil engineering, architecture and urbanism
Rapid construction method of continuous rigid frame bridge
The invention discloses a rapid construction method of a continuous rigid frame bridge, which comprises the following steps of: (1) constructing a bridge lower substructure, (2) moving a bridge erecting machine, temporarily anchoring supporting legs of the bridge erecting machine at the pier top of a pier, and sequentially hoisting all prefabricated girder sections in the ith span according to a segmental girder assembly sequence, staggering the prefabricated girder sections up and down in close rows and hang the prefabricated girder sections in an assembly preparation area on the right side of the i-th span, (3) installing a first prefabricated girder section; (4) installing subsequent girder sections; (5) assembling a whole-span segmental beam; (6) tensioning a positive bending moment beam in beam bottom plates of the prefabricated girder sections; (7) completing the construction of a next span segmental beam, and casting a pier top wet connection seam, (8) completing the construction of other spans of the coupled beam bridge; (9) tensioning the hogging moment beam in the beam top plate of the precast beam section in the coupled beam bridge; and (10) completing the construction of other coupled beams of the beam bridge. According to the method, through the processes of whole-hole segment assembling, pier top secondary pouring and the like, the material consumption and the construction cost are reduced; and prestressed tendons are stretched after the secondary pouring of the pier top is completed, the waiting time of the bridge erecting machine is shortened, and the construction progress is accelerated.
本发明公开了一种连续刚构桥的快速施工方法，包括如下步骤：①施工桥梁下部结构②移动架桥机，将其支腿临时锚固在桥墩墩顶，然后按照节段梁拼装顺序依次吊装第i跨内的全部预制梁段，并将其上下错开密排吊挂在第i跨内靠右侧的拼装准备区③安装首块预制梁段④安装后续预制梁段⑤拼装整跨节段梁⑥张拉预制梁段梁底板内的正弯矩束⑦完成下一跨节段梁的施工，并浇筑墩顶湿接缝⑧完成该联梁桥其余跨的施工⑨张拉该联中预制梁段梁顶板内的负弯矩束⑩完成该梁桥其余联的施工。本发明通过整孔节段拼装和墩顶二次浇筑等工艺，降低了材料用量和施工成本；在墩顶二次浇筑完成后进行预应力筋的拉伸，减少了架桥机的等待时间，加快了施工进度。
Rapid construction method of continuous rigid frame bridge
The invention discloses a rapid construction method of a continuous rigid frame bridge, which comprises the following steps of: (1) constructing a bridge lower substructure, (2) moving a bridge erecting machine, temporarily anchoring supporting legs of the bridge erecting machine at the pier top of a pier, and sequentially hoisting all prefabricated girder sections in the ith span according to a segmental girder assembly sequence, staggering the prefabricated girder sections up and down in close rows and hang the prefabricated girder sections in an assembly preparation area on the right side of the i-th span, (3) installing a first prefabricated girder section; (4) installing subsequent girder sections; (5) assembling a whole-span segmental beam; (6) tensioning a positive bending moment beam in beam bottom plates of the prefabricated girder sections; (7) completing the construction of a next span segmental beam, and casting a pier top wet connection seam, (8) completing the construction of other spans of the coupled beam bridge; (9) tensioning the hogging moment beam in the beam top plate of the precast beam section in the coupled beam bridge; and (10) completing the construction of other coupled beams of the beam bridge. According to the method, through the processes of whole-hole segment assembling, pier top secondary pouring and the like, the material consumption and the construction cost are reduced; and prestressed tendons are stretched after the secondary pouring of the pier top is completed, the waiting time of the bridge erecting machine is shortened, and the construction progress is accelerated.
本发明公开了一种连续刚构桥的快速施工方法，包括如下步骤：①施工桥梁下部结构②移动架桥机，将其支腿临时锚固在桥墩墩顶，然后按照节段梁拼装顺序依次吊装第i跨内的全部预制梁段，并将其上下错开密排吊挂在第i跨内靠右侧的拼装准备区③安装首块预制梁段④安装后续预制梁段⑤拼装整跨节段梁⑥张拉预制梁段梁底板内的正弯矩束⑦完成下一跨节段梁的施工，并浇筑墩顶湿接缝⑧完成该联梁桥其余跨的施工⑨张拉该联中预制梁段梁顶板内的负弯矩束⑩完成该梁桥其余联的施工。本发明通过整孔节段拼装和墩顶二次浇筑等工艺，降低了材料用量和施工成本；在墩顶二次浇筑完成后进行预应力筋的拉伸，减少了架桥机的等待时间，加快了施工进度。
Rapid construction method of continuous rigid frame bridge
连续刚构桥的快速施工方法
DENG XIANG (author) / ZHANG YAXIN (author) / YANG YANG (author) / DING NING (author) / ZHANG LIUKUI (author) / CHEN YANYANG (author) / WU SHENGTAO (author) / MA ZHENHUA (author) / WANG JINTAO (author) / HAN LILI (author)
2020-12-04
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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