A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestress assembly type hollow stair
The invention relates to a prestress assembly type hollow stair comprising step plates and a stairway bottom plate, the step plates are produced in a factory-like and batch mode through independent formworks, the stairway bottom plate is produced through a pre-tensioning process, and a step is arranged at the lower end of the stairway bottom plate. An independent template of the step plate is manufactured; a stair bottom plate formwork is manufactured; and a step plate shaping frame is manufactured. The stair step plates are produced in batches in an industrialized mode through independent formworks, connecting steel bars are reserved, and then the stair step plates are fixed into the shaping frame according to design requirements; and then long-line pedestal and high-strength steel are utilized, a pre-tensioning method is adopted for manufacturing a pre-stressed stair bottom plate, after concrete is not hardened, the shaping frame is placed, the step plates are embedded, after the concrete is initially set, a bottom plate formwork and the shaping frame are removed, after the concrete reaches the design strength, the pre-stressed tendons can be released, and production of the pre-stressed assembly type stair is completed. The upper end of the fabricated stair is integrally cast with a platform beam, and the lower end is simply supported and connected with the platform beam through bolts. The production efficiency is greatly improved, and the cost can be effectively saved.
一种预应力装配式空心楼梯，包括踏步板和楼梯底板，踏步板是采用独立模板工厂化批量生产，楼梯底板是通过先张法工艺生产，并在下端设置一级梯级。首先，制作踏步板的独立模板；制作楼梯底板模板；制作踏步板定型框架。其次，采用独立模板工厂化批量生产楼梯踏步板，并预留连接钢筋，再按设计要求固定于定型框架中；然后利用长线台座及高强钢材，采用先张法制作预应力楼梯底板，待混凝土未硬化，放入定型框架，嵌入踏步板，待混凝土初凝后，拆除底板模板及定型框架，混凝土达到设计强度后，可放张预应力筋，完成预应力装配式楼梯的生产。该装配式楼梯上端与平台梁整浇，下端通过螺栓与平台梁简支连接。生产效率大幅提升，可有效节约成本。
Prestress assembly type hollow stair
The invention relates to a prestress assembly type hollow stair comprising step plates and a stairway bottom plate, the step plates are produced in a factory-like and batch mode through independent formworks, the stairway bottom plate is produced through a pre-tensioning process, and a step is arranged at the lower end of the stairway bottom plate. An independent template of the step plate is manufactured; a stair bottom plate formwork is manufactured; and a step plate shaping frame is manufactured. The stair step plates are produced in batches in an industrialized mode through independent formworks, connecting steel bars are reserved, and then the stair step plates are fixed into the shaping frame according to design requirements; and then long-line pedestal and high-strength steel are utilized, a pre-tensioning method is adopted for manufacturing a pre-stressed stair bottom plate, after concrete is not hardened, the shaping frame is placed, the step plates are embedded, after the concrete is initially set, a bottom plate formwork and the shaping frame are removed, after the concrete reaches the design strength, the pre-stressed tendons can be released, and production of the pre-stressed assembly type stair is completed. The upper end of the fabricated stair is integrally cast with a platform beam, and the lower end is simply supported and connected with the platform beam through bolts. The production efficiency is greatly improved, and the cost can be effectively saved.
一种预应力装配式空心楼梯，包括踏步板和楼梯底板，踏步板是采用独立模板工厂化批量生产，楼梯底板是通过先张法工艺生产，并在下端设置一级梯级。首先，制作踏步板的独立模板；制作楼梯底板模板；制作踏步板定型框架。其次，采用独立模板工厂化批量生产楼梯踏步板，并预留连接钢筋，再按设计要求固定于定型框架中；然后利用长线台座及高强钢材，采用先张法制作预应力楼梯底板，待混凝土未硬化，放入定型框架，嵌入踏步板，待混凝土初凝后，拆除底板模板及定型框架，混凝土达到设计强度后，可放张预应力筋，完成预应力装配式楼梯的生产。该装配式楼梯上端与平台梁整浇，下端通过螺栓与平台梁简支连接。生产效率大幅提升，可有效节约成本。
Prestress assembly type hollow stair
一种预应力装配式空心楼梯
LI QINGSONG (author) / SUN SIHAO (author) / TIAN ANGUO (author) / JIANG DEWEN (author) / YAO JINWEN (author) / YE BIN (author)
2022-02-01
Patent
Electronic Resource
Chinese
IPC:
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden
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