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A platform for research: civil engineering, architecture and urbanism
Restraint system suitable for single-tower rotary cable suspension bridge
The invention relates to the technical field of suspension bridges, and discloses a restraint system suitable for a single-tower rotary cable suspension bridge. The position, close to one end, of a stiffening beam is matched with a bridge tower; the movable limiting shearing device is arranged at the end, close to the tower, of the stiffening beam. The fixed limiting shearing device is arranged at the far tower end of the stiffening beam to limit the transverse and longitudinal displacement of the stiffening beam; the movable limiting shearing devices are arranged at the ends, close to the tower, of the stiffening beams, the fixed limiting shearing devices are arranged at the ends, far away from the tower, of the stiffening beams, the whole stiffening beams are in the non-floating state that the ends, far away from the bridge tower, of the stiffening beams are fixedly connected, and the other ends of the stiffening beams stretch freely, stress of the main beams in the three-direction deformation state is most reasonable in the operation period, and the asymmetric deformation problem of the stiffening beams is solved; the problems that the bridge type expansion joint far away from the bridge tower end is short in service life and the short sling fatigue problem is prominent are solved. Under the severe earthquake load working condition, the restraint system can be automatically converted into a full-floating system, the natural vibration period of the structure is prolonged, and the structure corresponds to the earthquake.
本发明涉及悬索桥技术领域，公开了一种适用于独塔回转缆悬索桥的约束系统，加劲梁其靠近一端位置与桥塔配合；活动型限位剪断装置设于加劲梁近塔端；固定型限位剪断装置设于加劲梁远塔端以限制加劲梁横向和纵向位移；本发明通过在加劲梁近塔端设置活动型限位剪断装置，远塔端设置固定型限位剪断装置，整体呈现远离桥塔端固结，另一端自由伸缩的非漂浮状态，在运营期下主梁三向变形状态受力最为合理，解决了加劲梁非对称变形问题，解决了该桥型远离桥塔端伸缩缝寿命短、短吊索疲劳问题突出的问题。严重地震荷载工况下，约束系统可以自动转化为全漂浮体系，延长结构自振周期，减弱地震下结构相应。
Restraint system suitable for single-tower rotary cable suspension bridge
The invention relates to the technical field of suspension bridges, and discloses a restraint system suitable for a single-tower rotary cable suspension bridge. The position, close to one end, of a stiffening beam is matched with a bridge tower; the movable limiting shearing device is arranged at the end, close to the tower, of the stiffening beam. The fixed limiting shearing device is arranged at the far tower end of the stiffening beam to limit the transverse and longitudinal displacement of the stiffening beam; the movable limiting shearing devices are arranged at the ends, close to the tower, of the stiffening beams, the fixed limiting shearing devices are arranged at the ends, far away from the tower, of the stiffening beams, the whole stiffening beams are in the non-floating state that the ends, far away from the bridge tower, of the stiffening beams are fixedly connected, and the other ends of the stiffening beams stretch freely, stress of the main beams in the three-direction deformation state is most reasonable in the operation period, and the asymmetric deformation problem of the stiffening beams is solved; the problems that the bridge type expansion joint far away from the bridge tower end is short in service life and the short sling fatigue problem is prominent are solved. Under the severe earthquake load working condition, the restraint system can be automatically converted into a full-floating system, the natural vibration period of the structure is prolonged, and the structure corresponds to the earthquake.
本发明涉及悬索桥技术领域，公开了一种适用于独塔回转缆悬索桥的约束系统，加劲梁其靠近一端位置与桥塔配合；活动型限位剪断装置设于加劲梁近塔端；固定型限位剪断装置设于加劲梁远塔端以限制加劲梁横向和纵向位移；本发明通过在加劲梁近塔端设置活动型限位剪断装置，远塔端设置固定型限位剪断装置，整体呈现远离桥塔端固结，另一端自由伸缩的非漂浮状态，在运营期下主梁三向变形状态受力最为合理，解决了加劲梁非对称变形问题，解决了该桥型远离桥塔端伸缩缝寿命短、短吊索疲劳问题突出的问题。严重地震荷载工况下，约束系统可以自动转化为全漂浮体系，延长结构自振周期，减弱地震下结构相应。
Restraint system suitable for single-tower rotary cable suspension bridge
一种适用于独塔回转缆悬索桥的约束系统
DING DEHAO (author) / ZHU YU (author) / XU JIAN (author) / DING SHAOLING (author) / HUANG GUJIAN (author) / LIN JIE (author) / FU KUN (author) / WANG YU (author) / YANG HONGYONG (author) / ZONG XIN (author)
2024-11-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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