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A platform for research: civil engineering, architecture and urbanism
Bridge stress control system for suppressing vortex vibration
The invention discloses a bridge stress control system for suppressing vortex vibration. The bridge stress control system comprises a logic control unit, air nozzle units and wind power detection units. The air nozzle units are arranged at the two sides of a bridge girder side by side in the longitudinal direction of a bridge and provide vertical acting force for the bridge. The wind power detection units are distributed at the upper part and the lower part of the bridge to detect wind direction and wind speed; the logic control unit controls the rotation angle of the air nozzle unit accordingto the detected upper and lower wind speeds of the bridge; a first stress detection unit can be arranged to detect vertical stress of the bridge or a displacement detection unit can be arranged to detect strain of the bridge to control the air nozzle units; and transverse flow guide units can be arranged at the two sides of the bridge girder to be matched with the air nozzle units for wind powerregulation and control. The rotation angles of the air nozzle units or the transverse flow guide units can be correspondingly adjusted through the logic control unit according to parameters such as wind speed, stress and strain, natural wind is fully used for controlling stress and strain in the bridge, the bridge use safety is improved, the service life is prolonged, and the bridge safety coefficient is increased.
本发明公布了一种用于抑制涡振的桥梁应力控制系统，包括逻辑控制单元、风嘴单元和风力检测单元；风嘴单元沿桥梁纵向并列设置在桥梁主梁两侧，为桥梁提供竖向作用力；风力检测单元分布在桥梁的上部和下部，以检测风向和风速；逻辑控制单元根据检测到的桥梁上、下部风速，控制风嘴单元的转动角度；还可设置第一应力检测单元检测桥梁竖向应力或位移检测单元检测桥梁应变来对风嘴单元进行控制；还可在桥梁主梁两侧设置横向导流单元配合风嘴单元进行风力调控。本发明可通过逻辑控制单元根据风速、应力、应变等参数对应调整风嘴单元或横向导流单元的转动角度，充分利用自然风来控制桥梁内部的应力应变，提高桥梁使用安全和寿命，提高桥梁安全系数。
Bridge stress control system for suppressing vortex vibration
The invention discloses a bridge stress control system for suppressing vortex vibration. The bridge stress control system comprises a logic control unit, air nozzle units and wind power detection units. The air nozzle units are arranged at the two sides of a bridge girder side by side in the longitudinal direction of a bridge and provide vertical acting force for the bridge. The wind power detection units are distributed at the upper part and the lower part of the bridge to detect wind direction and wind speed; the logic control unit controls the rotation angle of the air nozzle unit accordingto the detected upper and lower wind speeds of the bridge; a first stress detection unit can be arranged to detect vertical stress of the bridge or a displacement detection unit can be arranged to detect strain of the bridge to control the air nozzle units; and transverse flow guide units can be arranged at the two sides of the bridge girder to be matched with the air nozzle units for wind powerregulation and control. The rotation angles of the air nozzle units or the transverse flow guide units can be correspondingly adjusted through the logic control unit according to parameters such as wind speed, stress and strain, natural wind is fully used for controlling stress and strain in the bridge, the bridge use safety is improved, the service life is prolonged, and the bridge safety coefficient is increased.
本发明公布了一种用于抑制涡振的桥梁应力控制系统，包括逻辑控制单元、风嘴单元和风力检测单元；风嘴单元沿桥梁纵向并列设置在桥梁主梁两侧，为桥梁提供竖向作用力；风力检测单元分布在桥梁的上部和下部，以检测风向和风速；逻辑控制单元根据检测到的桥梁上、下部风速，控制风嘴单元的转动角度；还可设置第一应力检测单元检测桥梁竖向应力或位移检测单元检测桥梁应变来对风嘴单元进行控制；还可在桥梁主梁两侧设置横向导流单元配合风嘴单元进行风力调控。本发明可通过逻辑控制单元根据风速、应力、应变等参数对应调整风嘴单元或横向导流单元的转动角度，充分利用自然风来控制桥梁内部的应力应变，提高桥梁使用安全和寿命，提高桥梁安全系数。
Bridge stress control system for suppressing vortex vibration
用于抑制涡振的桥梁应力控制系统
MO ZHIQIANG (author) / YIN SHAN (author) / WANG YUAN (author) / ZHAO JIESHENG (author) / LUO HONG (author) / ZHU QIAN (author)
2020-12-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
/
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
,
Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen
/
G01L
Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden
,
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
/
G01P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK
,
Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes
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