COMPOSITE BEAM AND FLOOR STRUCTURE AND JOINT STRUCTURE BETWEEN COMPOSITE BEAM AND COLUMN

摘要

The present invention is formed to extend in the longitudinal direction, the main body member having an open cross section; A plate-shaped closed cross-section plate which is joined to an upper side of the main body member to form a closed cross-section together with the main body member, and a concrete hole through which concrete is introduced through an upper region of the closed cross-section; A section steel member which is joined to the upper side of the closed cross-section plate material and is embedded in the pouring concrete; And a tension member disposed in an inner region of the closed end face and longitudinally disposed in a height lower region of the main body member to generate prestress.