A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cast-in-place box girder construction method
The invention provides a cast-in-place box girder construction method. The cast-in-place box girder construction method comprises the following steps that a foundation is treated, and a bearing platform foundation pit is backfilled in a layered mode and rolled; a support is erected, a land cast-in-place beam support adopts a full disc buckle type scaffold, and the full disc buckle type scaffold is supported on the hardened foundation; box girder formworks and steel bars are installed, specifically, a bottom formwork, a side formwork, a flange plate formwork and a box chamber formwork are installed in sequence, and steel bars and prestressed pipelines of a bottom plate, a web and a diaphragm are installed; concrete is poured, concrete is transported through a concrete tank truck, directly distributed through a pump truck and a trailer pump, poured and vibrated evenly; concrete curing is conducted, and the top face is immediately covered with a plastic film after beam concrete pouring is completed; according to the cast-in-place beam construction method disclosed by the invention, the compaction degree of the foundation is ensured to reach 90% or above by compacting the foundation, the full disc buckle type scaffold is adopted at the top of the foundation, the structure is simple, splicing can be rapidly completed, the bearing capacity is large, safety and reliability are achieved, control is easy, dangerousness is reduced, and reliability is improved.
本发明提供一种现浇箱梁施工方法，包括以下步骤：基础处理，承台基坑分层回填并碾压；支架搭设，陆上现浇梁支架采用满堂盘扣式脚手架，满堂盘扣式脚手架支撑于经硬化处理的地基上；箱梁模板及钢筋安装，依次完成底模板、侧模板、翼缘板模板、箱室模板安装，并将底板、腹板及横隔梁的钢筋及预应力管道安装完毕；混凝土浇筑，混凝土采用混凝土罐车运输，泵车和拖泵直接布料、浇筑并振捣均匀；混凝土养护，梁混凝土浇注完成后顶面立即覆盖塑料薄膜；本发明中公开的现浇梁施工方法中，通过压实基础，确保其压实度达到90％以上，在基础顶部采用满堂盘扣式脚手架，构造简单，能够迅速完成拼接，承载力大且安全可靠，易于控制，降低危险性提升可靠性。
Cast-in-place box girder construction method
The invention provides a cast-in-place box girder construction method. The cast-in-place box girder construction method comprises the following steps that a foundation is treated, and a bearing platform foundation pit is backfilled in a layered mode and rolled; a support is erected, a land cast-in-place beam support adopts a full disc buckle type scaffold, and the full disc buckle type scaffold is supported on the hardened foundation; box girder formworks and steel bars are installed, specifically, a bottom formwork, a side formwork, a flange plate formwork and a box chamber formwork are installed in sequence, and steel bars and prestressed pipelines of a bottom plate, a web and a diaphragm are installed; concrete is poured, concrete is transported through a concrete tank truck, directly distributed through a pump truck and a trailer pump, poured and vibrated evenly; concrete curing is conducted, and the top face is immediately covered with a plastic film after beam concrete pouring is completed; according to the cast-in-place beam construction method disclosed by the invention, the compaction degree of the foundation is ensured to reach 90% or above by compacting the foundation, the full disc buckle type scaffold is adopted at the top of the foundation, the structure is simple, splicing can be rapidly completed, the bearing capacity is large, safety and reliability are achieved, control is easy, dangerousness is reduced, and reliability is improved.
本发明提供一种现浇箱梁施工方法，包括以下步骤：基础处理，承台基坑分层回填并碾压；支架搭设，陆上现浇梁支架采用满堂盘扣式脚手架，满堂盘扣式脚手架支撑于经硬化处理的地基上；箱梁模板及钢筋安装，依次完成底模板、侧模板、翼缘板模板、箱室模板安装，并将底板、腹板及横隔梁的钢筋及预应力管道安装完毕；混凝土浇筑，混凝土采用混凝土罐车运输，泵车和拖泵直接布料、浇筑并振捣均匀；混凝土养护，梁混凝土浇注完成后顶面立即覆盖塑料薄膜；本发明中公开的现浇梁施工方法中，通过压实基础，确保其压实度达到90％以上，在基础顶部采用满堂盘扣式脚手架，构造简单，能够迅速完成拼接，承载力大且安全可靠，易于控制，降低危险性提升可靠性。
Cast-in-place box girder construction method
现浇箱梁施工方法
SHEN WEICI (author) / WANG CHAO (author) / YANG FAN (author) / WANG ZHEN (author)
2023-01-31
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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