Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Split steel box girder for restraining vortex vibration of bridge
The invention discloses a split steel box girder for restraining bridge vortex vibration, which comprises two box girders which are oppositely arranged along the transverse bridge direction, the outer side of each box girder is provided with an air nozzle, a plurality of transverse connecting boxes are arranged between the two box girders, and an open groove is formed between every two adjacent transverse connecting boxes. An upper bridge deck slab and a lower bridge deck slab which enable the open groove to be closed or opened are arranged at the open groove, and the upper bridge deck slab comprises a wide upper bridge deck slab and a narrow upper bridge deck slab which are asymmetrically arranged in the transverse bridge direction and can rotate relative to the two box girders respectively. The lower bridge deck slab comprises a wide lower bridge deck slab and a narrow lower bridge deck slab which are asymmetrically arranged in the transverse bridge direction and can rotate relative to the two box girders respectively, the wide upper bridge deck slab and the narrow lower bridge deck slab are both arranged on one box girder, and the narrow upper bridge deck slab and the wide lower bridge deck slab are both arranged on the other box girder. A closed box girder section can be formed under the frequent wind speed to restrain bridge vortex vibration, the open grooves can be opened in the typhoon day, the split box girder section is formed, and the bridge flutter requirement is met.
本发明公开了一种抑制桥梁涡振的分体钢箱梁，包括两个箱梁，沿横桥向相对设置，每个箱梁的外侧均设置有风嘴，两个箱梁之间设置有多个横向连接箱，相邻横向连接箱之间形成开槽，开槽处设置有使开槽封闭或开启的上桥面板与下桥面板，上桥面板包括沿横桥向非对称设置且能够分别相对于两个箱梁转动的宽上桥面板与窄上桥面板，下桥面板包括沿横桥向非对称设置且能够分别相对于两个箱梁转动的宽下桥面板与窄下桥面板，宽上桥面板、窄下桥面板均设置于其中一个箱梁上，窄上桥面板、宽下桥面板均设置于另一个箱梁上。本发明在常遇风速下可以形成闭口箱梁断面，以抑制桥梁涡振，而在台风天时能够将开槽打开，形成分体箱梁断面，满足桥梁颤振需求。
Split steel box girder for restraining vortex vibration of bridge
The invention discloses a split steel box girder for restraining bridge vortex vibration, which comprises two box girders which are oppositely arranged along the transverse bridge direction, the outer side of each box girder is provided with an air nozzle, a plurality of transverse connecting boxes are arranged between the two box girders, and an open groove is formed between every two adjacent transverse connecting boxes. An upper bridge deck slab and a lower bridge deck slab which enable the open groove to be closed or opened are arranged at the open groove, and the upper bridge deck slab comprises a wide upper bridge deck slab and a narrow upper bridge deck slab which are asymmetrically arranged in the transverse bridge direction and can rotate relative to the two box girders respectively. The lower bridge deck slab comprises a wide lower bridge deck slab and a narrow lower bridge deck slab which are asymmetrically arranged in the transverse bridge direction and can rotate relative to the two box girders respectively, the wide upper bridge deck slab and the narrow lower bridge deck slab are both arranged on one box girder, and the narrow upper bridge deck slab and the wide lower bridge deck slab are both arranged on the other box girder. A closed box girder section can be formed under the frequent wind speed to restrain bridge vortex vibration, the open grooves can be opened in the typhoon day, the split box girder section is formed, and the bridge flutter requirement is met.
本发明公开了一种抑制桥梁涡振的分体钢箱梁，包括两个箱梁，沿横桥向相对设置，每个箱梁的外侧均设置有风嘴，两个箱梁之间设置有多个横向连接箱，相邻横向连接箱之间形成开槽，开槽处设置有使开槽封闭或开启的上桥面板与下桥面板，上桥面板包括沿横桥向非对称设置且能够分别相对于两个箱梁转动的宽上桥面板与窄上桥面板，下桥面板包括沿横桥向非对称设置且能够分别相对于两个箱梁转动的宽下桥面板与窄下桥面板，宽上桥面板、窄下桥面板均设置于其中一个箱梁上，窄上桥面板、宽下桥面板均设置于另一个箱梁上。本发明在常遇风速下可以形成闭口箱梁断面，以抑制桥梁涡振，而在台风天时能够将开槽打开，形成分体箱梁断面，满足桥梁颤振需求。
Split steel box girder for restraining vortex vibration of bridge
一种抑制桥梁涡振的分体钢箱梁
ZHU JINBO (Autor:in) / YANG YONGXIN (Autor:in) / ZHANG JINJIE (Autor:in)
01.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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