| 摘要 |
PURPOSE: To simplify a stress transmitting structure to a column and to drastically reduce costs by providing a steel pipe on a central part of a joint part of a RC column and S beam of a multistory building so that it may be brought into contact with the upper and lower parts of the beam. CONSTITUTION: A cylindrical steel pipe 11 is provided in a central part of a joint part 10 so as to be brought into contact with the upper and lower parts of a beam 1, and the steel pipe 11 and the beam 1 are brought into contact with each other in the longitudinal direction of the steel pipe 11, on the whole surface from an upper flange 1'a to a lower flange 1'b of the beams or at two parts. In the joint part 10 reinforcing plates 6 are provided between the beams 1 in order to protect the joint part 10 and improve rigidity, and column main reinforcement 3 and corner reinforcing steels 7 are attached inside the reinforcing plates 6. Bending moments M1 , M2 of the beam 1, namely, compressive force C2 of the upper flange 1a', tensile force T1 , compressive force C1 of the lower flange 1b' and tensile force T2 , is transmitted to a RC column 2 by bearing forceαof the steel pipes 11a, 11b and placed concrete.
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