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Method for suppressing vortex-induced vibration of electric tower
The invention discloses an electric tower vortex-induced vibration suppression method, and belongs to the technical field of power transmission and transformation tower vortex-induced vibration suppression. The upper ends of the multiple steel wire rope damping devices are connected with a cross arm on the lowest layer of the electric tower, the lower ends of the multiple steel wire rope damping devices are connected with an electric tower foundation, the multiple steel wire rope damping devices form an elastic peripheral frame of the electric tower, and when a tower body deforms under the action of wind and cable galloping, the steel wire rope damping devices generate pulling force on the tower body to restrain further deformation of the tower body. As the pulling force changes along with the wind power, the vortex vibration frequency of the wind and the galloping frequency of the cable cannot be consistent with the inherent frequency of the tower body, so that the vortex-induced vibration suppression of the electric tower is realized. According to the structure of the steel wire rope damping device, one end of a first steel wire rope penetrates through a first bayonet hanging ring and then is bundled and fixed through a first steel wire rope clamp, and the other end of the first steel wire rope penetrates through a second basket hanging ring and then is bundled and fixed through a second steel wire rope clamp; and the other end penetrates through a fourth foundation bolt lifting ring and then is bundled and fixed by a fourth steel wire rope clamp. The method is used for suppressing vortex-induced vibration of the electric tower.
一种电塔涡激振动抑制方法，属于输变电塔涡激振动抑制技术领域。将多个钢丝绳阻尼装置上端与电塔最下层横担连接，下端与电塔基础连接，由多个钢丝绳阻尼装置组成电塔的弹性外围框，当塔身在风和电缆舞动作用下产生变形时，钢丝绳阻尼装置对塔身产生拉力，抑制塔身变形进一步发生，由于该拉力随风力发生变化，风的涡振频率和电缆舞动频率无法与塔身固有频率一致，从而实现电塔涡激振动抑制。钢丝绳阻尼装置结构是：钢丝绳一一端穿过卡口吊环一后用钢丝绳夹一捆扎固定，另一端穿过花篮吊环二后用钢丝绳夹二捆扎固定，钢丝绳二一端穿过花篮吊环三后用钢丝绳夹三捆扎，另一端穿过地脚螺栓吊环四后用钢丝绳夹四捆扎固定。本发明用于电塔涡激振动抑制。
Method for suppressing vortex-induced vibration of electric tower
The invention discloses an electric tower vortex-induced vibration suppression method, and belongs to the technical field of power transmission and transformation tower vortex-induced vibration suppression. The upper ends of the multiple steel wire rope damping devices are connected with a cross arm on the lowest layer of the electric tower, the lower ends of the multiple steel wire rope damping devices are connected with an electric tower foundation, the multiple steel wire rope damping devices form an elastic peripheral frame of the electric tower, and when a tower body deforms under the action of wind and cable galloping, the steel wire rope damping devices generate pulling force on the tower body to restrain further deformation of the tower body. As the pulling force changes along with the wind power, the vortex vibration frequency of the wind and the galloping frequency of the cable cannot be consistent with the inherent frequency of the tower body, so that the vortex-induced vibration suppression of the electric tower is realized. According to the structure of the steel wire rope damping device, one end of a first steel wire rope penetrates through a first bayonet hanging ring and then is bundled and fixed through a first steel wire rope clamp, and the other end of the first steel wire rope penetrates through a second basket hanging ring and then is bundled and fixed through a second steel wire rope clamp; and the other end penetrates through a fourth foundation bolt lifting ring and then is bundled and fixed by a fourth steel wire rope clamp. The method is used for suppressing vortex-induced vibration of the electric tower.
一种电塔涡激振动抑制方法，属于输变电塔涡激振动抑制技术领域。将多个钢丝绳阻尼装置上端与电塔最下层横担连接，下端与电塔基础连接，由多个钢丝绳阻尼装置组成电塔的弹性外围框，当塔身在风和电缆舞动作用下产生变形时，钢丝绳阻尼装置对塔身产生拉力，抑制塔身变形进一步发生，由于该拉力随风力发生变化，风的涡振频率和电缆舞动频率无法与塔身固有频率一致，从而实现电塔涡激振动抑制。钢丝绳阻尼装置结构是：钢丝绳一一端穿过卡口吊环一后用钢丝绳夹一捆扎固定，另一端穿过花篮吊环二后用钢丝绳夹二捆扎固定，钢丝绳二一端穿过花篮吊环三后用钢丝绳夹三捆扎，另一端穿过地脚螺栓吊环四后用钢丝绳夹四捆扎固定。本发明用于电塔涡激振动抑制。
Method for suppressing vortex-induced vibration of electric tower
一种电塔涡激振动抑制方法
LIU JINGHUA (author) / LI ZIMING (author) / ZHANG YU (author) / HU CHANGSHENG (author) / LIU WENWU (author) / WANG JUNYI (author) / ZHU GUANGCHENG (author)
2022-08-02
Patent
Electronic Resource
Chinese
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