Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel-support non-cohesive steel strand lower support type prestress floor reinforcing method
The invention discloses a steel-support non-cohesive steel strand lower support type prestress floor reinforcing method. The method includes: two or one steel support is disposed at the one-third-span position or half-span position of the bottom of a floor to change the single-span floor into a three-span floor or a two-span floor; certain-distance three-folding-line-shaped or two-folding-line-shaped non-cohesive steel strands are disposed at the bottom of each steel support to serve as the support points of the steel support; two ends of the non-cohesive steel strands are fixed on floor beams or ring beams through steel base plates and anchoring tools; after the non-cohesive steel strands apply prestress, upward counterforce is generated at each steel support to balance off part of floor load so as to achieve the reinforcing effect. The method has the advantages that the steel supports can be made of small I-shaped steel, and brackets at two ends of the steel supports are not needed; the method is an active reinforcing method, the stress of the reinforcing steel bars in the floor becomes small with the application of the prestress, the original cracks of the floor can be reduced and effective controlled, and floor deflection is reduced.
Steel-support non-cohesive steel strand lower support type prestress floor reinforcing method
The invention discloses a steel-support non-cohesive steel strand lower support type prestress floor reinforcing method. The method includes: two or one steel support is disposed at the one-third-span position or half-span position of the bottom of a floor to change the single-span floor into a three-span floor or a two-span floor; certain-distance three-folding-line-shaped or two-folding-line-shaped non-cohesive steel strands are disposed at the bottom of each steel support to serve as the support points of the steel support; two ends of the non-cohesive steel strands are fixed on floor beams or ring beams through steel base plates and anchoring tools; after the non-cohesive steel strands apply prestress, upward counterforce is generated at each steel support to balance off part of floor load so as to achieve the reinforcing effect. The method has the advantages that the steel supports can be made of small I-shaped steel, and brackets at two ends of the steel supports are not needed; the method is an active reinforcing method, the stress of the reinforcing steel bars in the floor becomes small with the application of the prestress, the original cracks of the floor can be reduced and effective controlled, and floor deflection is reduced.
Steel-support non-cohesive steel strand lower support type prestress floor reinforcing method
XIANG JIANFENG (Autor:in)
23.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
E04G
SCAFFOLDING
,
Baugerüste
External prestress steel strand reinforcing structure and method for grid structure
| Europäisches Patentamt | 2024