| 摘要 |
PURPOSE:To reduce the weight and improve the workability by fixing a cross beam made of a high-strength material below a concrete floor plate, and integrally fitting a diagonal member fixing member to it. CONSTITUTION:A diagonal member fixing anchor structure such as a casing pipe 4 or a fixing plate 5 inserted with PC steel wires is integrally fitted to a high-strength cross beam 1 having an H-shaped cross section and made of a high-strength material such as a steel product. It is conveyed to the construction site and set in the transverse direction of the lower face of a prestress concrete floor plate 2 with a crane. Concrete is placed after the bar arrangement and the construction of a formwork, and the beam 1 and the floor plate 2 are integrated. A diagonal member fixing anchor is fitted to the diagonal member. The weight of the cross beam 1 can be sharply reduced, the floor plate 2 can be made thin in thickness, the diagonal member can be precisely installed, the on-site work is reduced, and the construction period can be shortened. |
