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A platform for research: civil engineering, architecture and urbanism
Split type box girder capable of adjusting ventilation rate between grooves
The invention discloses a split type box girder capable of adjusting ventilation rate between grooves. The split type box girder comprises two box girders, at least one open groove formed between the two box girders and at least one cross beam connected with the two box girders, a ventilation rate adjusting device is arranged at the position of the open groove, and the ventilation rate adjusting device comprises at least one ventilation rate adjusting mechanism arranged in the longitudinal direction. The ventilation rate adjusting mechanism comprises two supports oppositely arranged in the longitudinal direction, a plurality of fender plates arranged between the two supports in the transverse direction at intervals and two driving devices arranged on the two supports respectively, and the two driving devices drive the fender plates to rotate and move horizontally. The ventilation rate adjusting mechanism is fixed in the open groove between the two box girders, under the driving condition, the ventilation rate between the grooves is reduced or the ventilation rate between the grooves is adjusted alternately in the spanwise direction so that vortex vibration can be eliminated, the driving comfort and safety can be guaranteed, under the potential flutter condition, the ventilation rate between the grooves is adjusted to the maximum, and the ventilation rate between the grooves can be adjusted to the maximum. Therefore, the requirement of bridge flutter stability performance is met.
本发明公开了一种可调槽间透风率的分体式箱梁，包括两个箱梁、设于两个箱梁之间的至少一个开槽以及连接两个箱梁的至少一个横梁，开槽处设置有透风率调节装置，透风率调节装置包括沿纵向设置的至少一个透风率调节机构，透风率调节机构包括沿纵向相对设置的两个支架、沿横向间隔设置在两个支架之间的多个叶子板以及分别设置在两个支架上的两个驱动装置，通过两个驱动装置带动多个叶子板旋转和水平运动。本发明将透风率调节机构固定在两个箱梁之间的开槽内，在行车的情况下，降低槽间透风率或者展向交替调节槽间透风率，以消除涡振，保证行车舒适性和安全性，在潜在发生颤振的情况下，将槽间的透风率调至最大，以满足桥梁颤振稳定性能要求。
Split type box girder capable of adjusting ventilation rate between grooves
The invention discloses a split type box girder capable of adjusting ventilation rate between grooves. The split type box girder comprises two box girders, at least one open groove formed between the two box girders and at least one cross beam connected with the two box girders, a ventilation rate adjusting device is arranged at the position of the open groove, and the ventilation rate adjusting device comprises at least one ventilation rate adjusting mechanism arranged in the longitudinal direction. The ventilation rate adjusting mechanism comprises two supports oppositely arranged in the longitudinal direction, a plurality of fender plates arranged between the two supports in the transverse direction at intervals and two driving devices arranged on the two supports respectively, and the two driving devices drive the fender plates to rotate and move horizontally. The ventilation rate adjusting mechanism is fixed in the open groove between the two box girders, under the driving condition, the ventilation rate between the grooves is reduced or the ventilation rate between the grooves is adjusted alternately in the spanwise direction so that vortex vibration can be eliminated, the driving comfort and safety can be guaranteed, under the potential flutter condition, the ventilation rate between the grooves is adjusted to the maximum, and the ventilation rate between the grooves can be adjusted to the maximum. Therefore, the requirement of bridge flutter stability performance is met.
本发明公开了一种可调槽间透风率的分体式箱梁，包括两个箱梁、设于两个箱梁之间的至少一个开槽以及连接两个箱梁的至少一个横梁，开槽处设置有透风率调节装置，透风率调节装置包括沿纵向设置的至少一个透风率调节机构，透风率调节机构包括沿纵向相对设置的两个支架、沿横向间隔设置在两个支架之间的多个叶子板以及分别设置在两个支架上的两个驱动装置，通过两个驱动装置带动多个叶子板旋转和水平运动。本发明将透风率调节机构固定在两个箱梁之间的开槽内，在行车的情况下，降低槽间透风率或者展向交替调节槽间透风率，以消除涡振，保证行车舒适性和安全性，在潜在发生颤振的情况下，将槽间的透风率调至最大，以满足桥梁颤振稳定性能要求。
Split type box girder capable of adjusting ventilation rate between grooves
一种可调槽间透风率的分体式箱梁
FANG GENSHEN (author) / XU SHENGYI (author) / ZHAO LIN (author) / CAO JINXIN (author) / GE YAOJUN (author)
2021-06-04
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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