| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel-concrete composite beam and its construction method attaining energy saving, cost reduction, and the like in various construction works such as steel work, form work, reinforcement work and temporary work. SOLUTION: The steel-concrete composite beam is formed of a steel frame section 2 located at the lower end of a beam cross section, and a reinforced concrete section 3 located on the upper side of the steel frame section 2. The steel frame section 2 is formed of a steel plate 2 continuous in the axial direction of the beam, and a plurality of studs 2b projected into the reinforced concrete section 3 from the upper face of the steel plate 2a. In construction, the steel plate 2a with the studs is laid as a bottom form, and side forms 8, 8 are arranged on both sides to form a beam form constituted in U-shape cross section opened at the upper face. Upper end main reinforcements 3a, lower end main reinforcements 3b and shear reinforcing bars 3c are arranged in reinforcing cage shape of rectangular cross section in the beam form. Concrete is then placed, and the side forms 8, 8 are removed when the concrete is hardened. COPYRIGHT: (C)2006,JPO&NCIPI
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