A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prefabricated concrete triangular truss prestressed prefabricated bottom plate hollow floor system
The invention relates to an assembly type concrete triangular truss prestressed prefabricated bottom plate hollow floor which comprises a plurality of prefabricated bottom plates, the prefabricated bottom plates are spliced and combined in a dense splicing mode to form a column net, and load-bearing steel bars are prefabricated in the prefabricated bottom plates; the prestressed reinforcements are prefabricated at the bottoms of the stressed reinforcements of the prefabricated bottom plate; the prefabricated triangular truss (serving as a ribbed beam) is arranged on the prefabricated bottom plate to form a hollow layer support of the hollow floor; and additional steel bars are arranged at the splicing seams of the plurality of prefabricated slabs. The prefabricated triangular truss is composed of an upper chord steel bar, web member steel bars symmetrically arranged on the two sides and two lower chord steel bars and can be mechanically manufactured and formed, and during industrial large-scale production, the web member steel bars and the lower chord steel bars of the triangular truss are prefabricated in a bottom plate. When the prefabricated bottom plate is hoisted and installed, upper chord steel bars of the triangular trusses are pressed, and lower chord steel bars of the triangular trusses are pulled, so that the floor slab is large in unsupported span and high in bearing capacity, few supports and no formwork can be achieved, and the construction efficiency is improved.
本发明涉及一种装配式混凝土三角桁架预应力预制底板空心楼盖，包括多块预制底板，多块预制底板采用密拼的方式拼接组合形成一个柱网，预制底板内预制有受力钢筋；预应力钢筋，预制于预制底板的受力钢筋的底部；预制三角桁架(充当肋梁)，设置于预制底板上，形成空心楼盖的空心层支撑；多块预制板的拼接的拼缝处设置有附加钢筋。预制三角桁架由一根上弦钢筋、两侧对称设置的腹杆钢筋及两根下弦钢筋组成，可由机械制作成型，在进行工业化大规模生产，三角桁架腹杆钢筋及下弦钢筋预制于底板中。预制底板在吊装和安装时，三角桁架上弦钢筋受压，下弦钢筋受拉，使楼板无支撑跨度大，承载能力高，能实现少支撑免支模，提升施工效率。
Prefabricated concrete triangular truss prestressed prefabricated bottom plate hollow floor system
The invention relates to an assembly type concrete triangular truss prestressed prefabricated bottom plate hollow floor which comprises a plurality of prefabricated bottom plates, the prefabricated bottom plates are spliced and combined in a dense splicing mode to form a column net, and load-bearing steel bars are prefabricated in the prefabricated bottom plates; the prestressed reinforcements are prefabricated at the bottoms of the stressed reinforcements of the prefabricated bottom plate; the prefabricated triangular truss (serving as a ribbed beam) is arranged on the prefabricated bottom plate to form a hollow layer support of the hollow floor; and additional steel bars are arranged at the splicing seams of the plurality of prefabricated slabs. The prefabricated triangular truss is composed of an upper chord steel bar, web member steel bars symmetrically arranged on the two sides and two lower chord steel bars and can be mechanically manufactured and formed, and during industrial large-scale production, the web member steel bars and the lower chord steel bars of the triangular truss are prefabricated in a bottom plate. When the prefabricated bottom plate is hoisted and installed, upper chord steel bars of the triangular trusses are pressed, and lower chord steel bars of the triangular trusses are pulled, so that the floor slab is large in unsupported span and high in bearing capacity, few supports and no formwork can be achieved, and the construction efficiency is improved.
本发明涉及一种装配式混凝土三角桁架预应力预制底板空心楼盖，包括多块预制底板，多块预制底板采用密拼的方式拼接组合形成一个柱网，预制底板内预制有受力钢筋；预应力钢筋，预制于预制底板的受力钢筋的底部；预制三角桁架(充当肋梁)，设置于预制底板上，形成空心楼盖的空心层支撑；多块预制板的拼接的拼缝处设置有附加钢筋。预制三角桁架由一根上弦钢筋、两侧对称设置的腹杆钢筋及两根下弦钢筋组成，可由机械制作成型，在进行工业化大规模生产，三角桁架腹杆钢筋及下弦钢筋预制于底板中。预制底板在吊装和安装时，三角桁架上弦钢筋受压，下弦钢筋受拉，使楼板无支撑跨度大，承载能力高，能实现少支撑免支模，提升施工效率。
Prefabricated concrete triangular truss prestressed prefabricated bottom plate hollow floor system
装配式混凝土三角桁架预应力预制底板空心楼盖
SHEN QIWEN (author) / YU ZHOU (author) / TAO XIU (author) / YANG YANG (author) / LI JIAN (author) / LI JUNYI (author) / LUO WENWEN (author) / WAN FANGGUI (author)
2024-05-17
Patent
Electronic Resource
Chinese
| European Patent Office | 2022
Truss supporting type prefabricated laminated hollow floor system
| European Patent Office | 2024