Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Wind-resistant device for improving construction stability of cantilever of cable-stayed bridge and construction method
The invention discloses a wind-resistant device for improving the construction stability of a cantilever of a cable-stayed bridge, which comprises a rope and a damping device, the upper end of the rope is connected with a hanging basket, the lower end of the rope is connected with the damping device, and the damping device is suspended in water by virtue of the buoyancy of the damping device and the tensile force provided by the rope; when wind-induced vibration of a beam body of the cable-stayed bridge occurs, the hanging basket installed on the beam body drives the damping device to move in water through the rope, the damping device is subjected to resistance of water in water, the direction of the resistance is opposite to the moving direction of the damping device, the damping device reciprocates up and down to overcome the resistance of the water to do work, and therefore vibration energy of the beam body is dissipated. And the beam body is recovered from the motion state to the static state. The wind-resistant device of the cable-stayed bridge increases structural damping, timely dissipates energy generated by structural vibration, eliminates vibration of the cable-stayed bridge in a germination stage, and ensures stability and safety in a bridge construction process. Meanwhile, the invention further provides an efficient and rapid construction method.
本发明公开了一种用于增大斜拉桥悬臂施工稳定性的抗风装置，包括绳索和阻尼装置，绳索上端与挂篮相连接，绳索的下端与阻尼装置相连接，阻尼装置依靠自身浮力和绳索提供的拉力悬浮于水中；当斜拉桥的梁体发生风致振动时，安装在梁体上的挂篮通过绳索带动阻尼装置在水中运动，阻尼装置在水中受到水对其的阻力，阻力的方向与阻尼装置的运动方向相反，阻尼装置上下往复运动克服水的阻力做功，从而耗散梁体振动的能量，使梁体由运动状态恢复到静止状态。该斜拉桥抗风装置增大结构阻尼，及时耗散结构振动产生的能量，将斜拉桥的振动消除在萌芽阶段，确保桥梁施工过程中的稳定性与安全性。同时，本发明还提供了一种高效、快捷的施工方法。
Wind-resistant device for improving construction stability of cantilever of cable-stayed bridge and construction method
The invention discloses a wind-resistant device for improving the construction stability of a cantilever of a cable-stayed bridge, which comprises a rope and a damping device, the upper end of the rope is connected with a hanging basket, the lower end of the rope is connected with the damping device, and the damping device is suspended in water by virtue of the buoyancy of the damping device and the tensile force provided by the rope; when wind-induced vibration of a beam body of the cable-stayed bridge occurs, the hanging basket installed on the beam body drives the damping device to move in water through the rope, the damping device is subjected to resistance of water in water, the direction of the resistance is opposite to the moving direction of the damping device, the damping device reciprocates up and down to overcome the resistance of the water to do work, and therefore vibration energy of the beam body is dissipated. And the beam body is recovered from the motion state to the static state. The wind-resistant device of the cable-stayed bridge increases structural damping, timely dissipates energy generated by structural vibration, eliminates vibration of the cable-stayed bridge in a germination stage, and ensures stability and safety in a bridge construction process. Meanwhile, the invention further provides an efficient and rapid construction method.
本发明公开了一种用于增大斜拉桥悬臂施工稳定性的抗风装置，包括绳索和阻尼装置，绳索上端与挂篮相连接，绳索的下端与阻尼装置相连接，阻尼装置依靠自身浮力和绳索提供的拉力悬浮于水中；当斜拉桥的梁体发生风致振动时，安装在梁体上的挂篮通过绳索带动阻尼装置在水中运动，阻尼装置在水中受到水对其的阻力，阻力的方向与阻尼装置的运动方向相反，阻尼装置上下往复运动克服水的阻力做功，从而耗散梁体振动的能量，使梁体由运动状态恢复到静止状态。该斜拉桥抗风装置增大结构阻尼，及时耗散结构振动产生的能量，将斜拉桥的振动消除在萌芽阶段，确保桥梁施工过程中的稳定性与安全性。同时，本发明还提供了一种高效、快捷的施工方法。
Wind-resistant device for improving construction stability of cantilever of cable-stayed bridge and construction method
用于增大斜拉桥悬臂施工稳定性的抗风装置及施工方法
ZHENG WENFEI (Autor:in) / NIE NINGBO (Autor:in) / WEI QIAN (Autor:in) / CHAI SHENGBO (Autor:in) / LIAO ZHOUJUN (Autor:in) / LIU JINLONG (Autor:in) / LI LONG (Autor:in)
25.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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