| 摘要 |
A construction method of a prestressed concrete beam is provided to make construction facilitated because the prestressed beam prefabricated in the factory can be immediately constructed. A construction method of a prestressed concrete beam comprises a step of forming a steel-frame structure(10) of a beam having a V-shaped cross section(20); a step of setting up in the outer side of the steel construction a support bar which is possible to rotate, supports the guide member; a step of fixing on the fixing unit in the location higher than the guide member; a step of introducing the tensile force after tensioning both end part of the prestressed concrete steel; a step that applies the concrete in the prestressed concrete steel in the state where the tensile force is applied inside the mold and cured; and a step of prestressing the concrete after cutting the unit of the discrete step is included after the concrete curing. |
