A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Steel truss girder pushing deviation rectifying system and construction method
The invention belongs to the field of bridge construction, and particularly relates to a steel truss girder pushing deviation rectifying system and a construction method. A torsion device is mounted on a main truss at the top of the steel truss girder; an adjustable laser emitting device is arranged at the rear end of the steel truss girder and can adjust the distance between the adjustable laser emitting device and the side face of the steel truss girder and the pitching angle. Photosensitive induction rulers are arranged on the platform on the two sides of the front end of the steel truss girder, and the photosensitive induction rulers sense the laser emitted by the adjustable laser emitting device to judge whether the steel truss girder and the guide beam deviate or not; a controller is installed beside the photosensitive induction ruler, receives offset signals of the adjustable laser emitting device and outputs the signals to the torsion device, and the torsion device is controlled to provide torsion for the steel truss girder. The rotating speeds of the motor and the flywheel are controlled through the deflection value of the steel truss girder, the torque counter-force is accurately controlled, and therefore the pressure difference between the left side and the right side of the steel truss girder is controlled, and excessive deviation correction is not prone to occurring.
本发明属于桥梁施工领域，具体为一种钢桁梁顶推纠偏系统及施工方法。钢桁梁顶部的主桁上安装扭力装置；钢桁梁后端设置有可调激光发射装置，可调激光发射装置可以调节与钢桁梁侧面之间的距离以及俯仰角度；钢桁梁前端两侧的平台上设置光敏感应尺，光敏感应尺感应可调激光发射装置发射的激光判断钢桁梁及导梁是否偏移；光敏感应尺旁边安装控制器，控制器接收可调激光发射装置的偏移信号并输出信号给扭力装置，控制扭力装置给钢桁梁提供扭力。本发明通过钢桁梁偏转值控制电动机与飞轮转速，精确控制扭矩反力，从而控制钢桁梁左右侧的压力差，不易过度纠偏。
Steel truss girder pushing deviation rectifying system and construction method
The invention belongs to the field of bridge construction, and particularly relates to a steel truss girder pushing deviation rectifying system and a construction method. A torsion device is mounted on a main truss at the top of the steel truss girder; an adjustable laser emitting device is arranged at the rear end of the steel truss girder and can adjust the distance between the adjustable laser emitting device and the side face of the steel truss girder and the pitching angle. Photosensitive induction rulers are arranged on the platform on the two sides of the front end of the steel truss girder, and the photosensitive induction rulers sense the laser emitted by the adjustable laser emitting device to judge whether the steel truss girder and the guide beam deviate or not; a controller is installed beside the photosensitive induction ruler, receives offset signals of the adjustable laser emitting device and outputs the signals to the torsion device, and the torsion device is controlled to provide torsion for the steel truss girder. The rotating speeds of the motor and the flywheel are controlled through the deflection value of the steel truss girder, the torque counter-force is accurately controlled, and therefore the pressure difference between the left side and the right side of the steel truss girder is controlled, and excessive deviation correction is not prone to occurring.
本发明属于桥梁施工领域，具体为一种钢桁梁顶推纠偏系统及施工方法。钢桁梁顶部的主桁上安装扭力装置；钢桁梁后端设置有可调激光发射装置，可调激光发射装置可以调节与钢桁梁侧面之间的距离以及俯仰角度；钢桁梁前端两侧的平台上设置光敏感应尺，光敏感应尺感应可调激光发射装置发射的激光判断钢桁梁及导梁是否偏移；光敏感应尺旁边安装控制器，控制器接收可调激光发射装置的偏移信号并输出信号给扭力装置，控制扭力装置给钢桁梁提供扭力。本发明通过钢桁梁偏转值控制电动机与飞轮转速，精确控制扭矩反力，从而控制钢桁梁左右侧的压力差，不易过度纠偏。
Steel truss girder pushing deviation rectifying system and construction method
钢桁梁顶推纠偏系统及施工方法
TANG ZHIHUA (author) / TIAN HAIBIN (author) / AN MAOQIANG (author) / SHAO QICHANG (author) / ZHAO XINDONG (author) / LIU YONGJIAN (author) / JIANG LEI (author) / CHANG YI (author)
2023-03-07
Patent
Electronic Resource
Chinese
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