Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Straight web steel box girder capable of restraining wind vibration
The invention discloses a straight web steel box girder capable of suppressing wind vibration, which belongs to the technical field of steel box girder structures, and is provided with a plurality of vibration suppression parts arranged in the steel box girder, the vibration suppression parts can effectively eliminate the vibration of strong wind to the steel box girder of a bridge body, and when the steel box girder swings in one direction, the vibration suppression parts can effectively suppress the vibration of the bridge body. The swing beam suspended in the steel box girder and the counterweight block fixed on the swing beam swing in the direction opposite to the wind flow relative to the steel box girder under the action of gravity, and the swing can eliminate the force for pushing the steel box girder to swing unidirectionally, so that the swing of the steel box girder is reduced to be eliminated; the plurality of vibration suppression parts respectively eliminate the swinging of the steel box girder at the mounting positions, so that the swinging trend of the whole steel box girder can be counteracted, the bridge vibration caused by the swinging of the steel box girder blown by wind is avoided, the wind vibration phenomenon caused by the swinging of the bridge blown by strong wind is eliminated by the structure, and the bridge still cannot swing under the condition of strong wind; the comfort and safety of bridge driving are guaranteed, and fatigue damage caused by vibration of bridge parts is also avoided.
本发明公开了一种可抑制风振的直腹板钢箱梁，属于钢箱梁结构技术领域，安装了若干排列在钢箱梁内的抑振部，此抑振部能有效消除强风给桥体钢箱梁带来的振动，钢箱梁向单向摆动时，悬吊在钢箱梁内部的摆梁加上固定在摆梁上的配种块在重力的作用下，相对于钢箱梁向风流的反方向摆动，此摆动可将推动钢箱梁单向摆动的力消除，使钢箱梁的摆动降低以至消除；若干抑振部分别消除其安装位置处的钢箱梁摆动，可使整个钢箱梁的摆动趋势被抵消，避免风吹动钢箱梁摆动造成桥梁振动，此结构消除了大风吹动桥梁晃动导致的风振现象，是桥梁在大风情况下依然不会摆动，保证桥梁行车的舒适性以及安全性，也避免了桥梁零部件因振动导致的疲劳损坏。
Straight web steel box girder capable of restraining wind vibration
The invention discloses a straight web steel box girder capable of suppressing wind vibration, which belongs to the technical field of steel box girder structures, and is provided with a plurality of vibration suppression parts arranged in the steel box girder, the vibration suppression parts can effectively eliminate the vibration of strong wind to the steel box girder of a bridge body, and when the steel box girder swings in one direction, the vibration suppression parts can effectively suppress the vibration of the bridge body. The swing beam suspended in the steel box girder and the counterweight block fixed on the swing beam swing in the direction opposite to the wind flow relative to the steel box girder under the action of gravity, and the swing can eliminate the force for pushing the steel box girder to swing unidirectionally, so that the swing of the steel box girder is reduced to be eliminated; the plurality of vibration suppression parts respectively eliminate the swinging of the steel box girder at the mounting positions, so that the swinging trend of the whole steel box girder can be counteracted, the bridge vibration caused by the swinging of the steel box girder blown by wind is avoided, the wind vibration phenomenon caused by the swinging of the bridge blown by strong wind is eliminated by the structure, and the bridge still cannot swing under the condition of strong wind; the comfort and safety of bridge driving are guaranteed, and fatigue damage caused by vibration of bridge parts is also avoided.
本发明公开了一种可抑制风振的直腹板钢箱梁，属于钢箱梁结构技术领域，安装了若干排列在钢箱梁内的抑振部，此抑振部能有效消除强风给桥体钢箱梁带来的振动，钢箱梁向单向摆动时，悬吊在钢箱梁内部的摆梁加上固定在摆梁上的配种块在重力的作用下，相对于钢箱梁向风流的反方向摆动，此摆动可将推动钢箱梁单向摆动的力消除，使钢箱梁的摆动降低以至消除；若干抑振部分别消除其安装位置处的钢箱梁摆动，可使整个钢箱梁的摆动趋势被抵消，避免风吹动钢箱梁摆动造成桥梁振动，此结构消除了大风吹动桥梁晃动导致的风振现象，是桥梁在大风情况下依然不会摆动，保证桥梁行车的舒适性以及安全性，也避免了桥梁零部件因振动导致的疲劳损坏。
Straight web steel box girder capable of restraining wind vibration
一种可抑制风振的直腹板钢箱梁
WU MINGYUAN (Autor:in) / JIA LIQIANG (Autor:in) / JIANG SHUQIN (Autor:in) / WANG SHUHUA (Autor:in) / ZHU GUI (Autor:in) / PENG YANZE (Autor:in) / HU LIWEN (Autor:in) / HE YIN (Autor:in)
04.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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