Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of steel-UHPC (Ultra High Performance Concrete) combined bridge deck slab
The invention provides a steel-UHPC (Ultra High Performance Concrete) combined bridge deck construction method which comprises the following steps: prefabricating steel box girders in sections, pre-assembling the steel box girders to form a steel box girder pre-assembled module, erecting a bridge deck concrete template in sections, pouring a UHPC concrete bridge deck, performing maintenance treatment, erecting the steel box girder pre-assembled module, and superposing and prefabricating the UHPC bridge deck. Carrying out bridge site cast-in-place wet joint construction to form a steel-UHPC combined bridge deck slab, and carrying out maintenance. According to the method, the UHPC bridge deck slab is prefabricated through segmented pouring, the one-time pouring size of the bridge deck slab is reduced, meanwhile, the steel box girder pre-assembly construction technology is matched, slab staggering between the segments is reduced, the integrity of the bridge deck slab is improved, self-constriction of the UHPC concrete is reduced through high-temperature steam curing, prefabrication in a factory is matched with on-site wet joint pouring construction in the whole process, and the construction efficiency is improved. A standard streamlined construction process is formed, the construction quality and the construction efficiency are improved, and the construction method has the advantages that slab staggering between the beam sections is small, the integrity of the bridge deck slab is good, the influence of self-constriction of the UHPC material is small, the pouring and curing effects of the UHPC concrete are good, the production process is standard and streamlined, the construction benefit is high and the like.
本发明提供了一种钢‑UHPC组合桥面板施工方法，包括有以下步骤：分节段预制钢箱梁→钢箱梁预拼装，形成钢箱梁预拼装模组→分节段搭支桥面板混凝土模板→浇筑UHPC混凝土桥面板→养护处理→架设钢箱梁预拼装模组→叠合预制UHPC桥面板，形成多段钢‑UHPC叠合梁段→桥位现浇湿接缝施工，形成钢‑UHPC组合桥面板→养护。本发明采用分节段浇筑预制UHPC桥面板，减小桥面板一次性浇筑体积，同时搭配钢箱梁预拼装施工工艺，减小节段间错台，提高桥面板整体性，再利用高温蒸养减小UHPC混凝土自收缩，整个过程通过工厂内预制配合现场湿接缝浇筑施工，形成标准流水化施工工艺，提高了施工质量和施工效率，具有各梁段间错台小、桥面板整体性好、UHPC材料自收缩影响小、UHPC混凝土浇筑和养护效果佳、生产过程标准流水化，施工效益高等优点。
Construction method of steel-UHPC (Ultra High Performance Concrete) combined bridge deck slab
The invention provides a steel-UHPC (Ultra High Performance Concrete) combined bridge deck construction method which comprises the following steps: prefabricating steel box girders in sections, pre-assembling the steel box girders to form a steel box girder pre-assembled module, erecting a bridge deck concrete template in sections, pouring a UHPC concrete bridge deck, performing maintenance treatment, erecting the steel box girder pre-assembled module, and superposing and prefabricating the UHPC bridge deck. Carrying out bridge site cast-in-place wet joint construction to form a steel-UHPC combined bridge deck slab, and carrying out maintenance. According to the method, the UHPC bridge deck slab is prefabricated through segmented pouring, the one-time pouring size of the bridge deck slab is reduced, meanwhile, the steel box girder pre-assembly construction technology is matched, slab staggering between the segments is reduced, the integrity of the bridge deck slab is improved, self-constriction of the UHPC concrete is reduced through high-temperature steam curing, prefabrication in a factory is matched with on-site wet joint pouring construction in the whole process, and the construction efficiency is improved. A standard streamlined construction process is formed, the construction quality and the construction efficiency are improved, and the construction method has the advantages that slab staggering between the beam sections is small, the integrity of the bridge deck slab is good, the influence of self-constriction of the UHPC material is small, the pouring and curing effects of the UHPC concrete are good, the production process is standard and streamlined, the construction benefit is high and the like.
本发明提供了一种钢‑UHPC组合桥面板施工方法，包括有以下步骤：分节段预制钢箱梁→钢箱梁预拼装，形成钢箱梁预拼装模组→分节段搭支桥面板混凝土模板→浇筑UHPC混凝土桥面板→养护处理→架设钢箱梁预拼装模组→叠合预制UHPC桥面板，形成多段钢‑UHPC叠合梁段→桥位现浇湿接缝施工，形成钢‑UHPC组合桥面板→养护。本发明采用分节段浇筑预制UHPC桥面板，减小桥面板一次性浇筑体积，同时搭配钢箱梁预拼装施工工艺，减小节段间错台，提高桥面板整体性，再利用高温蒸养减小UHPC混凝土自收缩，整个过程通过工厂内预制配合现场湿接缝浇筑施工，形成标准流水化施工工艺，提高了施工质量和施工效率，具有各梁段间错台小、桥面板整体性好、UHPC材料自收缩影响小、UHPC混凝土浇筑和养护效果佳、生产过程标准流水化，施工效益高等优点。
Construction method of steel-UHPC (Ultra High Performance Concrete) combined bridge deck slab
一种钢-UHPC组合桥面板施工方法
WANG BIN (Autor:in) / LUAN ZHIXIONG (Autor:in) / CHEN XINTAO (Autor:in) / LI ZHU (Autor:in) / SHANG XIAOPING (Autor:in) / LUO HONGBO (Autor:in) / YU JIANLUE (Autor:in) / DU YINGGUANG (Autor:in) / HU ZHENQI (Autor:in)
10.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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