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A platform for research: civil engineering, architecture and urbanism
Assembled integral type large-span hollow floor system based on prefabricated prestressed beams
The invention discloses an assembled integral type large-span hollow floor system based on prefabricated prestressed beams, which comprises the prefabricated prestressed concrete beams which can directly span the span of the floor system and are spliced with each other, the prefabricated prestressed concrete beam is composed of a horizontal upper flange, a horizontal lower flange and a beam web, the horizontal upper flange and the horizontal lower flange are arranged along the span of the floor system, the beam web is vertically connected with the horizontal upper flange and the horizontal lower flange, and the horizontal lower flange of the prefabricated prestressed concrete beam is provided with an abutted seam connecting piece and a transverse penetrating steel bar. The adjacent prefabricated prestressed concrete beams are transversely spliced along the span through the abutted seam connecting pieces and the transverse penetrating steel bars, cast-in-place longitudinal ribs are formed in a formed abutted seam area through cast-in-place concrete, and cast-in-place transverse ribs which are evenly distributed at equal intervals are formed in the mode of being perpendicular to the prefabricated prestressed beams through cast-in-place concrete. The risk that concrete pouring of the lower flange of the cast-in-place concrete hollow floor is not compact and segregated is solved, the risk that a filling body of the cast-in-place concrete hollow floor floats upwards is thoroughly eliminated, the integrity of the hollow floor and the construction quality of a concrete structure are guaranteed, and the anti-permeability performance is improved.
本发明公开一种基于预制预应力梁的装配整体式大跨空心楼盖，包括可直接跨越楼盖跨度相互拼接的预制预应力混凝土梁，所述预制预应力混凝土梁由沿楼盖跨度设置的水平上翼缘、水平下翼缘和垂直连接水平上翼缘和水平下翼缘的梁腹板组成，所述预制预应力混凝土梁的水平下翼缘设置有拼缝连接件和横向贯穿钢筋，相邻预制预应力混凝土梁通过拼缝连接件和横向贯穿钢筋沿跨度横向拼接，并在所形成的拼缝区域现浇混凝土形成现浇纵肋，垂直于预制预应力梁现浇混凝土形成等间距均布的现浇横肋。解决现浇混凝土空心楼盖下翼缘混凝土浇筑不密实和离析的风险，彻底消除现浇空心楼盖填充体上浮的风险，保证空心楼盖的整体性和混凝土结构施工质量，提高抗渗性能。
Assembled integral type large-span hollow floor system based on prefabricated prestressed beams
The invention discloses an assembled integral type large-span hollow floor system based on prefabricated prestressed beams, which comprises the prefabricated prestressed concrete beams which can directly span the span of the floor system and are spliced with each other, the prefabricated prestressed concrete beam is composed of a horizontal upper flange, a horizontal lower flange and a beam web, the horizontal upper flange and the horizontal lower flange are arranged along the span of the floor system, the beam web is vertically connected with the horizontal upper flange and the horizontal lower flange, and the horizontal lower flange of the prefabricated prestressed concrete beam is provided with an abutted seam connecting piece and a transverse penetrating steel bar. The adjacent prefabricated prestressed concrete beams are transversely spliced along the span through the abutted seam connecting pieces and the transverse penetrating steel bars, cast-in-place longitudinal ribs are formed in a formed abutted seam area through cast-in-place concrete, and cast-in-place transverse ribs which are evenly distributed at equal intervals are formed in the mode of being perpendicular to the prefabricated prestressed beams through cast-in-place concrete. The risk that concrete pouring of the lower flange of the cast-in-place concrete hollow floor is not compact and segregated is solved, the risk that a filling body of the cast-in-place concrete hollow floor floats upwards is thoroughly eliminated, the integrity of the hollow floor and the construction quality of a concrete structure are guaranteed, and the anti-permeability performance is improved.
本发明公开一种基于预制预应力梁的装配整体式大跨空心楼盖，包括可直接跨越楼盖跨度相互拼接的预制预应力混凝土梁，所述预制预应力混凝土梁由沿楼盖跨度设置的水平上翼缘、水平下翼缘和垂直连接水平上翼缘和水平下翼缘的梁腹板组成，所述预制预应力混凝土梁的水平下翼缘设置有拼缝连接件和横向贯穿钢筋，相邻预制预应力混凝土梁通过拼缝连接件和横向贯穿钢筋沿跨度横向拼接，并在所形成的拼缝区域现浇混凝土形成现浇纵肋，垂直于预制预应力梁现浇混凝土形成等间距均布的现浇横肋。解决现浇混凝土空心楼盖下翼缘混凝土浇筑不密实和离析的风险，彻底消除现浇空心楼盖填充体上浮的风险，保证空心楼盖的整体性和混凝土结构施工质量，提高抗渗性能。
Assembled integral type large-span hollow floor system based on prefabricated prestressed beams
基于预制预应力梁的装配整体式大跨空心楼盖
QUAN XUEYOU (author) / JUN JIN (author)
2025-01-17
Patent
Electronic Resource
Chinese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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