A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prefabricated composite floor slab adopting light steel riveted crossed truss and construction method of prefabricated composite floor slab
The invention provides a prefabricated composite floor slab adopting light steel riveted crossed trusses and a construction method thereof, the prefabricated composite floor slab comprises a light steel framework and a concrete part, the light steel framework comprises a steel plate, the upper surface of the steel plate is provided with an X-shaped crossed truss along a diagonal line, the bottom of the X-shaped crossed truss is connected with the steel plate through rivets, and the X-shaped crossed truss is provided with N groups of trusses; bent flat steel braces are riveted between the adjacent trusses, during construction, construction loads are borne by the light steel framework, and a formwork does not need to be erected; the light steel framework is adopted for replacing steel bars in the longitudinal direction and the transverse direction, the truss coincides with the main tensile stress direction of the two-way plate and intersects with the critical main crack direction, and stress is reasonable; the bent flat steel brace is used for replacing an anti-shear stud, light weight is achieved, production cost is reduced, the perforated steel plate plays a role in bidirectional reinforcement, the part, bent downwards in a tension area, of the bent flat steel brace can bear certain tension, crack development is limited, and the problem that a laminated slab is prone to cracking is solved.
本发明提供一种采用轻钢铆接交叉桁架的预制组合楼板及其施工方法，包括轻钢骨架和混凝土部分，轻钢骨架包括钢板，所述钢板的上表面沿对角线设有“X”型交叉桁架，“X”型交叉桁架的底部与钢板通过铆钉连接，“X”型交叉桁架设有N组桁架；相邻桁架之间铆有弯起扁钢拉条，施工时，依靠轻钢骨架承受施工荷载，无需搭设模架；本发明采用轻钢骨架替代纵横两个方向的钢筋，桁架与双向板主拉应力方向重合，与临界主裂缝方向相交，受力合理；用弯起扁钢拉条代替抗剪栓钉，实现轻量化、降低生产成本，带孔钢板起到双向配筋的作用，加上弯扁钢拉条下弯在受拉区的部分能承担一定的拉力，限制裂缝的开展，解决叠合板易开裂的问题。
Prefabricated composite floor slab adopting light steel riveted crossed truss and construction method of prefabricated composite floor slab
The invention provides a prefabricated composite floor slab adopting light steel riveted crossed trusses and a construction method thereof, the prefabricated composite floor slab comprises a light steel framework and a concrete part, the light steel framework comprises a steel plate, the upper surface of the steel plate is provided with an X-shaped crossed truss along a diagonal line, the bottom of the X-shaped crossed truss is connected with the steel plate through rivets, and the X-shaped crossed truss is provided with N groups of trusses; bent flat steel braces are riveted between the adjacent trusses, during construction, construction loads are borne by the light steel framework, and a formwork does not need to be erected; the light steel framework is adopted for replacing steel bars in the longitudinal direction and the transverse direction, the truss coincides with the main tensile stress direction of the two-way plate and intersects with the critical main crack direction, and stress is reasonable; the bent flat steel brace is used for replacing an anti-shear stud, light weight is achieved, production cost is reduced, the perforated steel plate plays a role in bidirectional reinforcement, the part, bent downwards in a tension area, of the bent flat steel brace can bear certain tension, crack development is limited, and the problem that a laminated slab is prone to cracking is solved.
本发明提供一种采用轻钢铆接交叉桁架的预制组合楼板及其施工方法，包括轻钢骨架和混凝土部分，轻钢骨架包括钢板，所述钢板的上表面沿对角线设有“X”型交叉桁架，“X”型交叉桁架的底部与钢板通过铆钉连接，“X”型交叉桁架设有N组桁架；相邻桁架之间铆有弯起扁钢拉条，施工时，依靠轻钢骨架承受施工荷载，无需搭设模架；本发明采用轻钢骨架替代纵横两个方向的钢筋，桁架与双向板主拉应力方向重合，与临界主裂缝方向相交，受力合理；用弯起扁钢拉条代替抗剪栓钉，实现轻量化、降低生产成本，带孔钢板起到双向配筋的作用，加上弯扁钢拉条下弯在受拉区的部分能承担一定的拉力，限制裂缝的开展，解决叠合板易开裂的问题。
Prefabricated composite floor slab adopting light steel riveted crossed truss and construction method of prefabricated composite floor slab
一种采用轻钢铆接交叉桁架的预制组合楼板及其施工方法
PAN ZHIHONG (author) / MO YUFAN (author) / YANG HUI (author) / YAO KAI (author) / WANG YUNQING (author) / GAO HAOFEI (author)
2022-11-25
Patent
Electronic Resource
Chinese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS