JP2009138480A5 - - Google Patents

Claims (4)

  As a substantially rectangular tubular flat plate that receives shearing force mainly in the flat plate surface, a frame-shaped frame consisting of solid or tubular rectangular cross-section members is provided on its four sides, and the same thickness as the frame material is provided inside the peripheral frame One or more tubular rectangular cross-section members are arranged in layers in parallel with one of the two side frames to form a structural orthogonal anisotropy body, and a metal flat plate is attached to both the front and back surfaces of the structural body to form a tubular flat plate As a tubular body, a reinforcement structure for a shear seismic panel that significantly increases the torsional rigidity of the flat plate to ensure the shear yield load determined by the front and back metal plates and to maintain the shear strength after the yield.   As a rectangular tubular plate that receives shear force mainly in the flat plate surface, a solid or tubular rectangular cross-section member of the same thickness as the frame material is placed inside the peripheral frame in one or more layers in parallel with the long side frames. Although the structure has a structurally orthotropic structure, the longitudinal intermediate portion of the member is divided and solid or tubular rectangular cross-section members are arranged orthogonally, and metal plates are attached to both the front and back surfaces of the structure to form a tubular shape. A reinforcing structure for a shear seismic panel, which is a body flat plate, which suppresses out-of-plane bending deformation of the flat plate and secures a shear yield load determined by the front and back metal flat plates and maintains the shear strength after yielding.   As a substantially rectangular tubular flat plate that receives a shearing force mainly in the flat plate surface, a frame-shaped frame with solid or tubular rectangular cross-section members arranged on the four sides surrounding the tubular flat plate increases the torsional rigidity of the tubular flat plate. Maintains the yield strength in balance with the oblique tension generated on the front and back metal plates after shear yielding, prevents the yield strength from decreasing immediately after shear yielding, and further reduces the shear strength after yielding without reducing the shear strength in the growth of shear deformation. The reinforcing structure for a shear seismic panel according to any one of claims 1 and 2, wherein the width of the peripheral frame material to be maintained is 3% to 15% with respect to the width of the tubular flat plate.   As a substantially rectangular tubular flat plate that mainly receives shearing force in the flat plate surface, a metal flat plate is attached to both front and back surfaces of the frame material of the surrounding four sides and the members arranged in layers inside the frame, and the tubular flat plate is configured. A flat plate surface which expands and grows after yielding by reinforcing a belt-like rectangular plate or a belt-like rectangular plate with protruding flanges on one or both outer surfaces of the front and back metal plates as necessary so as to follow the surrounding frame material and the members inside the frame. The reinforcing structure for a shear earthquake-resistant panel according to any one of claims 1 and 2, wherein the bending deformation to the outside is suppressed to be low and the hysteresis property is stable with respect to a load repeated alternately in positive and negative directions.