| 摘要 |
PROBLEM TO BE SOLVED: To provide a cantilever beam support structure capable of sufficiently restraining deflection in the vertical direction, in the cantilever beam support structure capable of providing a large opening part on an outer wall surface of a lower story.SOLUTION: A cantilever beam support structure comprises a pair of column materials mutually erected at an interval on the indoor side of an outer wall surface of a lower story of a building, a pair of side part cantilever beams joined to the upper end of the column materials, orthogonal to the outer wall surface, fixing one end to a structural skeleton and projecting the other end to the outdoor side more than the outer wall surface, an intermediate cantilever beam orthogonal to the outer wall surface between the pair of side part cantilever beams, fixing one end to the structural skeleton and projecting the other end to the outdoor side more than the outer wall surface, a plurality of tie beams installed between the side part cantilever beam and the intermediate cantilever beam and a gradation beam joining both ends to a side surface of a column capital of the pair of column materials and joined by hardware having horizontal shear resistance on an under surface of the tie beams.SELECTED DRAWING: Figure 2 |
