A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BRIDGE FALL PREVENTION DEVICE
PROBLEM TO BE SOLVED: To provide a bridge fall prevention device having a compact structure capable of preventing a bridge from falling down by following changes in all directions while protecting a damper.SOLUTION: The bridge fall prevention device includes a damper 55 both ends of which are connected between a bridge footing 11 and a bridge girder 10 being interposed by a bracket 22 respectively. The bracket 22 is rotatable in three-dimensional directions. The damper 55 is arranged so that, when the tensile force reaches a preset stroke limit at the damper 55, a member fixed to the bracket 22 at the bridge footing 11 side and a member fixed to the bracket 22 at the bridge girder 10 side engaged with each other to function as a bridge fall prevention member 63.SELECTED DRAWING: Figure 1
【課題】全方向の変化に追随でき、かつ、コンパクトな構造で、ダンパーを保護しつつ落橋を防止することのできる落橋防止装置を提供することを目的とする。【解決手段】橋脚１１と橋桁１０との間に、それぞれブラケット２２を介在してダンパー５５の両端部を連結してなる落橋防止装置において、前記ブラケット２２は、３次元方向に回転可能であり、前記ダンパー５５は、前記橋脚１１側のブラケット２２に固着した部材と、前記橋桁１０側のブラケット２２に固着した部材とが前記ダンパー５５における設定した引張力のストローク限界に達したとき互いに係止して落橋防止部材６３として機能するように構成した。【選択図】図１
BRIDGE FALL PREVENTION DEVICE
PROBLEM TO BE SOLVED: To provide a bridge fall prevention device having a compact structure capable of preventing a bridge from falling down by following changes in all directions while protecting a damper.SOLUTION: The bridge fall prevention device includes a damper 55 both ends of which are connected between a bridge footing 11 and a bridge girder 10 being interposed by a bracket 22 respectively. The bracket 22 is rotatable in three-dimensional directions. The damper 55 is arranged so that, when the tensile force reaches a preset stroke limit at the damper 55, a member fixed to the bracket 22 at the bridge footing 11 side and a member fixed to the bracket 22 at the bridge girder 10 side engaged with each other to function as a bridge fall prevention member 63.SELECTED DRAWING: Figure 1
【課題】全方向の変化に追随でき、かつ、コンパクトな構造で、ダンパーを保護しつつ落橋を防止することのできる落橋防止装置を提供することを目的とする。【解決手段】橋脚１１と橋桁１０との間に、それぞれブラケット２２を介在してダンパー５５の両端部を連結してなる落橋防止装置において、前記ブラケット２２は、３次元方向に回転可能であり、前記ダンパー５５は、前記橋脚１１側のブラケット２２に固着した部材と、前記橋桁１０側のブラケット２２に固着した部材とが前記ダンパー５５における設定した引張力のストローク限界に達したとき互いに係止して落橋防止部材６３として機能するように構成した。【選択図】図１
BRIDGE FALL PREVENTION DEVICE
落橋防止装置
KURAJI KENTARO (author) / MIGITAKA YUJI (author) / YANAKA AKIHISA (author) / NAGATA TAKASHI (author) / MIKI EIJI (author) / HOSOBUCHI SEIJI (author) / WATANABE ITSUHITO (author) / NAKAMURA TAIJI (author)
2016-07-07
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken