A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prefabricated truss prestressed concrete stair and manufacturing method thereof
The invention relates to the technical field of prefabricated concrete stairs, in particular to a prefabricated truss prestressed concrete stair and a manufacturing method thereof, and the prefabricated truss prestressed concrete stair comprises a stair section, a top step arranged at the top of the stair section and a bottom step arranged at the bottom of the stair section. Prestressed steel bars and truss steel bars are arranged to serve as a steel bar structure of the prefabricated concrete stair, the prestressed steel bars are laid in gaps in the lower layer of the truss steel bars, the use amount of lower chord steel bars can be reduced, and the tensile property of the prestressed steel bars and the bending resistance of the truss steel bars are used for pouring through a long-line platform. The prefabricated concrete stair can be directly machined and formed in a factory, the pouring quality and maintenance can be guaranteed, the construction period of a building is shortened, the weight reducing holes transversely penetrating through the stairs are formed in the stairs of the stair section, on the premise that the strength of the prefabricated concrete stair is not reduced, the weight of the concrete stair is effectively reduced, and the construction period is shortened. And hoisting of the concrete stairs is facilitated.
本发明涉及预制混凝土楼梯技术领域，尤其为一种预制桁架预应力混凝土楼梯及其制造方法，包括楼梯段、设置在楼梯段顶部的顶部台阶和设置在楼梯段底部的底部台阶。通过设置预应力钢筋和桁架钢筋作为预制混凝土楼梯的钢筋结构，其中，桁架钢筋下层间隙中铺设预应力钢筋，可节省下弦钢筋的用量，通过利用预应力钢筋的抗拉性能和桁架钢筋的抗弯性能，使用长线台进行浇筑，可在工厂直接将预制混凝土楼梯加工成型，浇筑质量、养护可以得到保证，缩短建筑物的施工工期，通过在楼梯段的每个阶梯内部均设置横向贯穿阶梯的减重孔洞，在不降低预制混凝土楼梯强度的前提下，有效降低混凝土楼梯的重量，利于混凝土楼梯的吊装。
Prefabricated truss prestressed concrete stair and manufacturing method thereof
The invention relates to the technical field of prefabricated concrete stairs, in particular to a prefabricated truss prestressed concrete stair and a manufacturing method thereof, and the prefabricated truss prestressed concrete stair comprises a stair section, a top step arranged at the top of the stair section and a bottom step arranged at the bottom of the stair section. Prestressed steel bars and truss steel bars are arranged to serve as a steel bar structure of the prefabricated concrete stair, the prestressed steel bars are laid in gaps in the lower layer of the truss steel bars, the use amount of lower chord steel bars can be reduced, and the tensile property of the prestressed steel bars and the bending resistance of the truss steel bars are used for pouring through a long-line platform. The prefabricated concrete stair can be directly machined and formed in a factory, the pouring quality and maintenance can be guaranteed, the construction period of a building is shortened, the weight reducing holes transversely penetrating through the stairs are formed in the stairs of the stair section, on the premise that the strength of the prefabricated concrete stair is not reduced, the weight of the concrete stair is effectively reduced, and the construction period is shortened. And hoisting of the concrete stairs is facilitated.
本发明涉及预制混凝土楼梯技术领域，尤其为一种预制桁架预应力混凝土楼梯及其制造方法，包括楼梯段、设置在楼梯段顶部的顶部台阶和设置在楼梯段底部的底部台阶。通过设置预应力钢筋和桁架钢筋作为预制混凝土楼梯的钢筋结构，其中，桁架钢筋下层间隙中铺设预应力钢筋，可节省下弦钢筋的用量，通过利用预应力钢筋的抗拉性能和桁架钢筋的抗弯性能，使用长线台进行浇筑，可在工厂直接将预制混凝土楼梯加工成型，浇筑质量、养护可以得到保证，缩短建筑物的施工工期，通过在楼梯段的每个阶梯内部均设置横向贯穿阶梯的减重孔洞，在不降低预制混凝土楼梯强度的前提下，有效降低混凝土楼梯的重量，利于混凝土楼梯的吊装。
Prefabricated truss prestressed concrete stair and manufacturing method thereof
一种预制桁架预应力混凝土楼梯及其制造方法
ZHANG ZHIHUI (author) / CHI SHENGJIN (author) / LIAO WEI (author) / YANG LIANHAO (author)
2023-12-26
Patent
Electronic Resource
Chinese
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden
/
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
/
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
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