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A platform for research: civil engineering, architecture and urbanism
VIBRATION ISOLATION STRUCTURE FOR RIGID-FRAME VIADUCT
To provide a vibration isolation structure for rigid-frame viaduct that can reduce ground vibration without lowering the seismic performance of the original rigid-frame viaduct.SOLUTION: In the vibration isolation structure for rigid-frame viaduct, upper ends of columns arranged at intervals in a bridge axis direction are connected by vertical beams and slabs extend from the vertical beams in the bridge axis orthogonal direction. Included are a beam supporting diagonal member 2 connected in a state in which a lower end 21 is fixed to a side surface 112 of a column 11 and an upper end 22 allows displacement at least in a bridge axis direction Y with respect to a lower surface 121 of a vertical beam 12, and a slab supporting diagonal member 4 connected in a state in which a lower end 41 is fixed to a side surface 122 of the vertical beam and an upper end 42 allows displacement at least in a bridge axis orthogonal direction X with respect to a lower surface 14a of a slab 14.SELECTED DRAWING: Figure 1
【課題】本来のラーメン高架橋の耐震性能を低下させることなく、地盤振動を低減できるラーメン高架橋の防振構造を提供する。【解決手段】橋軸方向に間隔を置いて配置された柱の上端間が縦梁で接続されるとともに、縦梁から橋軸直交方向に張り出されるスラブを備えたラーメン高架橋の防振構造である。そして、下端２１が柱１１の側面１１２に固定されるとともに、上端２２が縦梁１２の下面１２１に対して少なくとも橋軸方向Ｙへの変位を許容した状態で連結される梁受斜材２と、下端４１が縦梁の側面１２２に固定されるとともに、上端４２がスラブ１４の下面１４ａに対して少なくとも橋軸直交方向Ｘへの変位を許容した状態で連結されるスラブ受斜材４とを備えている。【選択図】図１
VIBRATION ISOLATION STRUCTURE FOR RIGID-FRAME VIADUCT
To provide a vibration isolation structure for rigid-frame viaduct that can reduce ground vibration without lowering the seismic performance of the original rigid-frame viaduct.SOLUTION: In the vibration isolation structure for rigid-frame viaduct, upper ends of columns arranged at intervals in a bridge axis direction are connected by vertical beams and slabs extend from the vertical beams in the bridge axis orthogonal direction. Included are a beam supporting diagonal member 2 connected in a state in which a lower end 21 is fixed to a side surface 112 of a column 11 and an upper end 22 allows displacement at least in a bridge axis direction Y with respect to a lower surface 121 of a vertical beam 12, and a slab supporting diagonal member 4 connected in a state in which a lower end 41 is fixed to a side surface 122 of the vertical beam and an upper end 42 allows displacement at least in a bridge axis orthogonal direction X with respect to a lower surface 14a of a slab 14.SELECTED DRAWING: Figure 1
【課題】本来のラーメン高架橋の耐震性能を低下させることなく、地盤振動を低減できるラーメン高架橋の防振構造を提供する。【解決手段】橋軸方向に間隔を置いて配置された柱の上端間が縦梁で接続されるとともに、縦梁から橋軸直交方向に張り出されるスラブを備えたラーメン高架橋の防振構造である。そして、下端２１が柱１１の側面１１２に固定されるとともに、上端２２が縦梁１２の下面１２１に対して少なくとも橋軸方向Ｙへの変位を許容した状態で連結される梁受斜材２と、下端４１が縦梁の側面１２２に固定されるとともに、上端４２がスラブ１４の下面１４ａに対して少なくとも橋軸直交方向Ｘへの変位を許容した状態で連結されるスラブ受斜材４とを備えている。【選択図】図１
VIBRATION ISOLATION STRUCTURE FOR RIGID-FRAME VIADUCT
ラーメン高架橋の防振構造
WATANABE TSUTOMU (author) / SOGABE MASAMICHI (author)
2020-01-23
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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