BEAM JOINING STRUCTURE

• Main Authors: NAGASHIMA TAISUKE, MIYAZAKI TOSHIMITSU, IMAI JUNICHI, YANO MASATAKA
• Format: Patent
• Language: English; Japanese
• Published: 12.03.2020
• Subjects: BUILDING; CEILINGS; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; ROOFS; WALLS, e.g. PARTITIONS

To join the end faces of two beams so as to transmit bending moment and shearing force, and to suppress cracks in the end parts of the beams.SOLUTION: Cutting holes 13, 14 are provided in the axial direction from the upper part and the lower part of the end face of the first beam 1, and an upper screw member 11 and a lower screw member 12 are screwed in. Upper and lower screw members 21, 22 are also screwed into the second beam in the axial direction, and bending moment can be transmitted between beams by connecting them through connecting members 31, 32. The end of the first beam is provided with a vertical cutting hole 17 in the vertical direction crossing the cutting hole in the axial direction, and a vertical screw member 15 is screwed to a position where the entire length of the screw passes the cutting hole in the axial direction. A beam receiving metal fitting 34 is fixed to the end face of the first beam by a bolt whose tip is screwed into the vertical screw member, and is connected to the second beam so that shearing force can be transmitted. In the vicinity of the screw member screwed into the first beam, long screws 18, 19 for suppressing the crack of a wood material are screwed.SELECTED DRAWING: Figure 2 【課題】２つの梁の端面を対向させ、曲げモーメント及びせん断力が伝達されるように接合するとともに、梁の端部の割れを抑制する。【解決手段】第１の梁１の端面の上部及び下部から軸線方向に切削穴１３，１４を設け、上部スクリュー部材１１及び下部スクリュー部材１２をねじ込む。第２の梁にも軸線方向に上部及び下部のスクリュー部材２１，２２をねじ込み、連結部材３１，３２を介して連結して梁間で曲げモーメントの伝達を可能とする。第１の梁の端部には、軸線方向の切削穴と交叉して上下方向に縦方向切削孔１７を設け、縦方向スクリュー部材１５を、全長が軸線方向の切削穴を通過する位置までねじ込む。縦方向スクリュー部材に先端がねじ込まれるボルトで第１の梁の端面に梁受け金物３４を固定し、第２の梁とせん断力の伝達が可能に連結する。第１の梁にねじ込まれたスクリュー部材の近傍には、木質材の割れを抑える長ビス１８，１９をねじ込む。【選択図】図２