BEAM OF REINFORCED CONCRETE STRUCTURE, AND BEAM DESIGN METHOD

摘要

PROBLEM TO BE SOLVED: To ensure that design requirements on bearing force and deformation performance of a structure are met even when an opening is formed at an edge part of a beam of a reinforced concrete structure, without impairing structural performance of the beam, at the same time enabling the opening to be formed closer to a column.SOLUTION: An opening 43 is formed on a beam 4 of a reinforced concrete structure 1, the opening penetrating concrete 41 at an edge part of the beam 4 in a width direction. At least either of a compression member 48 for opening reinforcement above the opening 43 or a compression member 49 for opening reinforcement below the opening 43 is embedded in the concrete 41. The compression members 48, 49 for opening reinforcement are made to extend in an axial direction of the beam 4, and the compression members 48, 49 for opening reinforcement are not anchored to a column 3 connected to the edge part of the beam 4. The opening 43 is positioned closer to an edge 44 by the column of the beam 4, thereby suppressing shear deformation of a portion of the concrete 41 around the opening 43.SELECTED DRAWING: Figure 4