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Cable end vibration reduction system for long sling of suspension bridge
The invention discloses a cable end vibration reduction system for a long sling of a suspension bridge. The cable end vibration reduction system comprises a vibration reduction support and a cable end damping vibration reduction assembly. A main cable of the suspension bridge is connected with a bridge floor main beam through a plurality of groups of long slings, and each group of long slings comprises two or more slings which are arranged in parallel; the vibration reduction support comprises a main cable clamp, an annular tie bar and a vertical supporting rod. The main cable clamp locking frame is arranged on the outer side of the main cable; the annular tie bar is horizontally and coaxially arranged on the periphery of one set of long slings under the main cable in a sleeving mode, and the annular tie bar is connected with the main cable clamp through a plurality of vertical supporting rods. The cable end damping vibration attenuation assemblies are symmetrically arranged in an inner cavity of the annular tie rod, and the two ends of each cable end damping vibration attenuation assembly are connected with the corresponding sling and the annular tie rod respectively. And each group of cable end damping vibration attenuation assembly comprises two cable end dampers which are arranged in a V shape or an L shape. Wind vibration at the upper end of the long sling exceeding 200 m can be effectively controlled, falling can be prevented, and the manufacturing cost is saved.
本发明公开了一种悬索桥长吊索缆端减振系统，包括减振支架和缆端阻尼减振组件；悬索桥的主缆通过若干组长吊索与桥面主梁相连接，每组长吊索均包括两根及以上平行设置的吊索；减振支架包括主缆索夹、环形系杆和竖向支撑杆；主缆索夹锁紧架设在主缆外侧；环形系杆水平且同轴套设在主缆正下方其中一组长吊索的外周，环形系杆通过若干根竖向支撑杆与主缆索夹相连接；缆端阻尼减振组件对称布设在环形系杆内腔中，每组缆端阻尼减振组件的两端分别与对应吊索和环形系杆相连接；每组缆端阻尼减振组件均包括两个呈V型或L型布设的缆端阻尼器。本发明能对超过200m的长吊索上端的风振进行有效控制，且能防脱落，节省制作成本。
Cable end vibration reduction system for long sling of suspension bridge
The invention discloses a cable end vibration reduction system for a long sling of a suspension bridge. The cable end vibration reduction system comprises a vibration reduction support and a cable end damping vibration reduction assembly. A main cable of the suspension bridge is connected with a bridge floor main beam through a plurality of groups of long slings, and each group of long slings comprises two or more slings which are arranged in parallel; the vibration reduction support comprises a main cable clamp, an annular tie bar and a vertical supporting rod. The main cable clamp locking frame is arranged on the outer side of the main cable; the annular tie bar is horizontally and coaxially arranged on the periphery of one set of long slings under the main cable in a sleeving mode, and the annular tie bar is connected with the main cable clamp through a plurality of vertical supporting rods. The cable end damping vibration attenuation assemblies are symmetrically arranged in an inner cavity of the annular tie rod, and the two ends of each cable end damping vibration attenuation assembly are connected with the corresponding sling and the annular tie rod respectively. And each group of cable end damping vibration attenuation assembly comprises two cable end dampers which are arranged in a V shape or an L shape. Wind vibration at the upper end of the long sling exceeding 200 m can be effectively controlled, falling can be prevented, and the manufacturing cost is saved.
本发明公开了一种悬索桥长吊索缆端减振系统，包括减振支架和缆端阻尼减振组件；悬索桥的主缆通过若干组长吊索与桥面主梁相连接，每组长吊索均包括两根及以上平行设置的吊索；减振支架包括主缆索夹、环形系杆和竖向支撑杆；主缆索夹锁紧架设在主缆外侧；环形系杆水平且同轴套设在主缆正下方其中一组长吊索的外周，环形系杆通过若干根竖向支撑杆与主缆索夹相连接；缆端阻尼减振组件对称布设在环形系杆内腔中，每组缆端阻尼减振组件的两端分别与对应吊索和环形系杆相连接；每组缆端阻尼减振组件均包括两个呈V型或L型布设的缆端阻尼器。本发明能对超过200m的长吊索上端的风振进行有效控制，且能防脱落，节省制作成本。
Cable end vibration reduction system for long sling of suspension bridge
一种悬索桥长吊索缆端减振系统
TAO TIANYOU (author) / GAO WEIJIE (author) / WANG SHENG (author) / WANG HAO (author)
2023-03-10
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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