A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EARTHQUAKE-RESISTING METAL FITTING FOR WOODEN BUILDING
To eliminate the risk of the collapse of a wooden building due to an earthquake if joint portions are reinforced by rigidly joining columns and horizontal members such as foundation or beams of the wooden building.SOLUTION: An earthquake-resisting metal fitting for a wooden building comprises: a box-shaped metal fitting body 3; and a buckling intervention device 17 having a loose fitting hole formed thereon. The metal fitting body 3 is installed between a column C and a foundation A, and a bolt 33 which protrudes from the foundation A on the lower side into the metal fitting body 3 through the loose fitting hole of the buckling intervention device 17 is fastened by a nut 37. Further, the upper side of the metal fitting body 3 is also fixed by a lag screw 41. When an earthquake occurs, the buckling intervention device 17 buckles and contracts, so that the tightening state with the foundation A side is released, and the metal fitting body 3 is lifted together with the column C, but the foundation A side remains in the same position. Since there is a gap between the loose fitting hole and the bolt 33, the lifting allows rotation within the gap range as indicated by the one-dot chain line. Therefore, a moment generated by the earthquake can be absorbed, and damage to joint portions can be avoided.SELECTED DRAWING: Figure 5
【課題】木造建築物の柱と基礎や梁などの横架材との接合部分を、剛接合して補強すると、地震時に木造建築物が損壊するおそれがある。【解決手段】ボックス状金具本体３と、遊嵌孔が形成された座屈用介装具１７とを備える。金具本体３を柱Ｃと基礎Ａとの間に設置し、下側の基礎Ａから金具本体３の内部に突出したボルト３３を座屈用介装具１７の遊嵌孔に通させた上でナット３７により緊締させる。また、金具本体３の上側もラグスクリュー４１で固定する。地震が起こると、座屈用介装具１７は座屈して縮小するので、基礎Ａ側との緊締状態は解除され、金具本体３が柱Ｃと共に浮き上がるが、基礎Ａ側はそのままの位置に留まる。遊嵌孔とボルト３３との間に隙間があるので、上記の浮き上がりにより、一点鎖線に示すように、その隙間範囲で回動も可能となる。従って、地震により発生するモーメントを吸収でき、接合部分の損傷を回避できる。【選択図】 図５
EARTHQUAKE-RESISTING METAL FITTING FOR WOODEN BUILDING
To eliminate the risk of the collapse of a wooden building due to an earthquake if joint portions are reinforced by rigidly joining columns and horizontal members such as foundation or beams of the wooden building.SOLUTION: An earthquake-resisting metal fitting for a wooden building comprises: a box-shaped metal fitting body 3; and a buckling intervention device 17 having a loose fitting hole formed thereon. The metal fitting body 3 is installed between a column C and a foundation A, and a bolt 33 which protrudes from the foundation A on the lower side into the metal fitting body 3 through the loose fitting hole of the buckling intervention device 17 is fastened by a nut 37. Further, the upper side of the metal fitting body 3 is also fixed by a lag screw 41. When an earthquake occurs, the buckling intervention device 17 buckles and contracts, so that the tightening state with the foundation A side is released, and the metal fitting body 3 is lifted together with the column C, but the foundation A side remains in the same position. Since there is a gap between the loose fitting hole and the bolt 33, the lifting allows rotation within the gap range as indicated by the one-dot chain line. Therefore, a moment generated by the earthquake can be absorbed, and damage to joint portions can be avoided.SELECTED DRAWING: Figure 5
【課題】木造建築物の柱と基礎や梁などの横架材との接合部分を、剛接合して補強すると、地震時に木造建築物が損壊するおそれがある。【解決手段】ボックス状金具本体３と、遊嵌孔が形成された座屈用介装具１７とを備える。金具本体３を柱Ｃと基礎Ａとの間に設置し、下側の基礎Ａから金具本体３の内部に突出したボルト３３を座屈用介装具１７の遊嵌孔に通させた上でナット３７により緊締させる。また、金具本体３の上側もラグスクリュー４１で固定する。地震が起こると、座屈用介装具１７は座屈して縮小するので、基礎Ａ側との緊締状態は解除され、金具本体３が柱Ｃと共に浮き上がるが、基礎Ａ側はそのままの位置に留まる。遊嵌孔とボルト３３との間に隙間があるので、上記の浮き上がりにより、一点鎖線に示すように、その隙間範囲で回動も可能となる。従って、地震により発生するモーメントを吸収でき、接合部分の損傷を回避できる。【選択図】 図５
EARTHQUAKE-RESISTING METAL FITTING FOR WOODEN BUILDING
木造建築物用耐震金具
HOSOKAWA SEIJI (author)
2019-11-14
Patent
Electronic Resource
Japanese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
CONNECTING METAL FITTING FOR BUILDING, MANUFACTURING METHOD OF WOODEN BUILDING AND WOODEN BUILDING
| European Patent Office | 2021
| European Patent Office | 2019