用自然振荡频率测定桥梁悬索绳张力

I. Gameliak, Sergii Kriuchatov, Yevhen Oksen
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引用次数: 0

摘要

本文讨论了基于自由横向振荡频率的绳索张力数字测量设备的开发和使用问题。钢丝绳张力的精确测量具有重要的实际意义。这项任务与乌克兰国民经济的相关性在于需要开发一种简单可靠的方法和设备,以便建筑工程师和操作工程师快速方便地测量建筑行业的绳索张力。该工作的现实意义在于,基辅第聂伯罗河上的Podilsky大桥拱桥跨距结构在安装金属结构后,需要及时将桥桁架的重量转移到四个主支撑和64根悬索上,并充分卸载四个安装支撑,以便进一步布置桥面并完成施工工作。本文研究的对象是在拱桥桁架到达桥梁金属构件设计位置的过程中,从桥梁金属部分的自重测量悬索绳张力的过程。该研究的主题是确定64根悬挂绳的上附着点(螺纹圆柱形联轴器)的联合运动对其轮廓中自然振荡和张力频率重新分布的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
DETERMINATION OF TENSIONS OF SUSPENDED ROPES OF THE BRIDGE BY FREQUENCY OF NATURAL OSCILLATIONS
The article deals with the issues of development and use of equipment for digital measurements of rope tension based on the frequency of free transverse oscillations. accurate measurement of rope tension is of practical importance. The relevance of this task for the national economy of Ukraine lies in the need to develop a simple and reliable method and equipment for quick and convenient measurement by construction engineers and operating engineers of rope tension in the construction industry. The practical significance of the work lies in the need to timely bring the span structure of the Arch Bridge of the Podilsky bridge crossing over the Dnipro River in Kyiv to the design position after the installation of metal structures with the transfer of the weight of the bridge truss to four main supports and 64 suspension cables with full unloading of four mounting supports for further arrangement of the bridge deck and completion of construction works. The object of the research is the process of measuring the tension of suspension ropes from the own weight of the metal part of the bridge during bringing the truss of the Arch Bridge to the design position of the metal structural elements of the bridge. The subject of the study is the determination of the impact of the combined movement of the upper attachment points (threaded cylindrical couplings) of 64 suspended ropes on the redistribution of the frequencies of natural oscillations and tensions in their contours.
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