A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FUNCTION SEPARATION TYPE SHOCK ABSORBER AND BRIDGE PROVIDED WITH FUNCTION SEPARATION TYPE SHOCK ABSORBER
To provide a function separation type shock absorber and a bridge provided with a function separation type shock absorber having high deformation capacity and energy absorption capacity in both tension and compression directions and being installed mainly as a bridge fall preventing member between an end of a bridge girder and an abutment supporting the end of the girder.SOLUTION: A joint part 5 and a joint part 6 are attached at both ends in the bridge axial direction. First and second deformation core materials 7A and 7B and a displacement core material 8 are disposed adjacently to each other in the bridge axial direction on the same material axis between the joint part 5 and the joint part 6. A plurality of buckling restraining materials 9 are installed on the outer side of a direction perpendicular to the axis of the first and second deformation core materials 7A and 7B and the displacement core material 8. The first and second deformation core materials 7A and 7B are installed so as to be elastically or plastically deformed by receiving compression and tensile loads in the bridge axial direction. The displacement core material 8 receives compression and tensile loads in the bridge axial direction, and is installed so as to be displaced in the bridge axial direction without resistance in a state in which the connection with the joint part 5 is disconnected.SELECTED DRAWING: Figure 1
【課題】引張り及び圧縮両方向の変形能力とエネルギー吸収能力が高く、主として橋桁の端部と橋桁の端部を支える橋台との間に落橋防止材として設置される機能分離型衝撃吸収装置及び機能分離型衝撃吸収装置を備えた橋梁を提供する。【解決手段】橋軸方向の両端部に継手部5と継手部6を取り付ける。継手部5と継手部6間の同一材軸線上に第1及び第2変形芯材7A,7Bと変位芯材8を橋軸方向に隣接して設置する。第1及び第2変形芯材7A,7Bと変位芯材8の軸直角方向の外側に複数の座屈拘束材９を設置する。第1,2変形芯材7A,7Bは橋軸方向の圧縮及び引張り荷重を受けて弾性又は塑性変形するように設置する。変位芯材8は橋軸方向の圧縮及び引張り荷重を受けて、継手部5との連結が切り離された状態で橋軸方向に無抵抗で変位するように設置する。【選択図】図１
FUNCTION SEPARATION TYPE SHOCK ABSORBER AND BRIDGE PROVIDED WITH FUNCTION SEPARATION TYPE SHOCK ABSORBER
To provide a function separation type shock absorber and a bridge provided with a function separation type shock absorber having high deformation capacity and energy absorption capacity in both tension and compression directions and being installed mainly as a bridge fall preventing member between an end of a bridge girder and an abutment supporting the end of the girder.SOLUTION: A joint part 5 and a joint part 6 are attached at both ends in the bridge axial direction. First and second deformation core materials 7A and 7B and a displacement core material 8 are disposed adjacently to each other in the bridge axial direction on the same material axis between the joint part 5 and the joint part 6. A plurality of buckling restraining materials 9 are installed on the outer side of a direction perpendicular to the axis of the first and second deformation core materials 7A and 7B and the displacement core material 8. The first and second deformation core materials 7A and 7B are installed so as to be elastically or plastically deformed by receiving compression and tensile loads in the bridge axial direction. The displacement core material 8 receives compression and tensile loads in the bridge axial direction, and is installed so as to be displaced in the bridge axial direction without resistance in a state in which the connection with the joint part 5 is disconnected.SELECTED DRAWING: Figure 1
【課題】引張り及び圧縮両方向の変形能力とエネルギー吸収能力が高く、主として橋桁の端部と橋桁の端部を支える橋台との間に落橋防止材として設置される機能分離型衝撃吸収装置及び機能分離型衝撃吸収装置を備えた橋梁を提供する。【解決手段】橋軸方向の両端部に継手部5と継手部6を取り付ける。継手部5と継手部6間の同一材軸線上に第1及び第2変形芯材7A,7Bと変位芯材8を橋軸方向に隣接して設置する。第1及び第2変形芯材7A,7Bと変位芯材8の軸直角方向の外側に複数の座屈拘束材９を設置する。第1,2変形芯材7A,7Bは橋軸方向の圧縮及び引張り荷重を受けて弾性又は塑性変形するように設置する。変位芯材8は橋軸方向の圧縮及び引張り荷重を受けて、継手部5との連結が切り離された状態で橋軸方向に無抵抗で変位するように設置する。【選択図】図１
FUNCTION SEPARATION TYPE SHOCK ABSORBER AND BRIDGE PROVIDED WITH FUNCTION SEPARATION TYPE SHOCK ABSORBER
機能分離型衝撃吸収装置及び機能分離型衝撃吸収装置を備えた橋梁
MAEJIMA MINORU (author)
2019-02-28
Patent
Electronic Resource
Japanese
| European Patent Office | 2020