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A platform for research: civil engineering, architecture and urbanism
Large-span prestressed beam sinking type one-time tensioning process
The invention discloses a large-span prestressed beam sinking type one-time tensioning process, and belongs to the field of prestressed beams. Concrete is poured in the prestressed beam; after the concrete is condensed, the beam side formwork is detached; the prestressed steel bars are tensioned; the prestressed beam formwork is dismantled, and the exposed steel strand is cut; good crack resistance and deformation resistance can be achieved, durability is high, the sectional size of the structure can be effectively reduced, the height of the structure can be effectively reduced, the use space can be effectively increased, the structural design is more economical, lighter and more attractive, materials are saved, and the engineering cost is reduced.
本发明公开了大跨度预应力梁内陷式一次张拉工艺，属于预应力梁领域，包括预应力梁搭建；在所述预应力梁内浇筑混凝土；待混凝土凝结后，拆卸梁侧模板；对预应力钢筋进行张拉；拆除预应力梁模板，并将外露的钢绞线切割；灌浆，并将预应力梁的端部封裹，可以实现良好的抗裂性能和抗变形能力，耐久性高，可以有效的减少结构截面尺寸，降低结构自身高度，提升使用空间，使结构设计得更为经济、轻巧与美观，节约材料、降低工程成本。
Large-span prestressed beam sinking type one-time tensioning process
The invention discloses a large-span prestressed beam sinking type one-time tensioning process, and belongs to the field of prestressed beams. Concrete is poured in the prestressed beam; after the concrete is condensed, the beam side formwork is detached; the prestressed steel bars are tensioned; the prestressed beam formwork is dismantled, and the exposed steel strand is cut; good crack resistance and deformation resistance can be achieved, durability is high, the sectional size of the structure can be effectively reduced, the height of the structure can be effectively reduced, the use space can be effectively increased, the structural design is more economical, lighter and more attractive, materials are saved, and the engineering cost is reduced.
本发明公开了大跨度预应力梁内陷式一次张拉工艺，属于预应力梁领域，包括预应力梁搭建；在所述预应力梁内浇筑混凝土；待混凝土凝结后，拆卸梁侧模板；对预应力钢筋进行张拉；拆除预应力梁模板，并将外露的钢绞线切割；灌浆，并将预应力梁的端部封裹，可以实现良好的抗裂性能和抗变形能力，耐久性高，可以有效的减少结构截面尺寸，降低结构自身高度，提升使用空间，使结构设计得更为经济、轻巧与美观，节约材料、降低工程成本。
Large-span prestressed beam sinking type one-time tensioning process
大跨度预应力梁内陷式一次张拉工艺
CHEN DONGQUAN (author) / JIANG BIN (author)
2022-10-18
Patent
Electronic Resource
Chinese
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