| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite structure beam which achieves the reduction of weight by reducing the cross section of a beam of a reinforced concrete structure at a beam end, and shortening the length of the reinforced concrete structure, and improves the flexibility of the arrangement of shear reinforcements, and to provide a building structure having the composite structure beam. SOLUTION: In the composite structure beam 11, a hinge zone H where the beam yields by bending stress at the beam end 12 is constructed of the reinforced concrete structure, and a section on one side of a hinge zone toward a beam center is constructed of a steel frame structure. Then a steel frame 13 close to the beam center side and the beam end 12 of the reinforced concrete structure are formed into a unitary body via a boundary plate 14. COPYRIGHT: (C)2009,JPO&INPIT
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