Experimental study on movement of water rivulet on cable surface in rain-wind induced vibration of stay-cables;
对斜拉桥拉索风雨振动中二次轴向流的产生及作用机理进行分析。
The tangential movement of water rivulet has significant effects on the rain-wind induced vibration of stay-cables.
在各种振动情况中,尤以风雨激振的起振条件容易满足,且振幅极大,对桥梁的危害最为严重。
Stay cables are susceptible to vibration under wind and traffic loading due to their large flexibility, relatively small mass and very low inherent damping.
由于拉索具有极大的柔性,相对较小的质量,以及非常低的阻尼,其对风荷载及交通荷载引起的振动十分敏感。
Affected by various factors, the whole or part of the stay cables of some cable-stayed Bridges have to be replaced after a period of operation.
斜拉桥由于多因素的影响,致使部分斜拉桥运营一段时间后需要全部或部分更换斜拉索。
The parametric and subharmonic resonances of stay cables excited by the vibration of deck are investigated.
研究由桥面振动引起的斜拉索参数共振和亚谐波共振问题。
The large amplitude vibration character of stay cables is discussed via calculation of concrete examples.
还通过实例计算对斜拉索大幅振动特性进行了讨论分析。
A new method of inspecting and maintaining high altitude stay cables with a cable robot is presented in this paper, to meet urgent needs of its automation.
针对现代斜拉桥对安全和美观的越来越高要求,提出用大倾斜度缆索机器人进行高空缆索检测和维护的新方法。
Dampers have been used for vibration mitigation of stay cables; however, there are few literatures on the test of full-scale stay cable attached with nonlinear viscous damper.
在拉索上附加耗能减振阻尼器是斜拉索振动控制的主要手段之一,而拉索在附加非线性粘性阻尼器后的阻尼特性尚未见试验研究报道。
The design characteristics of stay cables of partially cable stayed bridge referring to Xiaoxihu Yellow River Bridge in Lanzhou are presented.
以兰州市小西湖黄河大桥为例,说明部分斜拉桥斜拉索在设计上的一些主要特点。
On-site observation of wind-rain induced vibration of stay cables and its control were studied.
介绍了斜拉索风雨振现场观测与振动控制研究的情况。
Construction supervision and control factors of outside prestressed stay cables are introduced.
介绍该体外预应力式斜拉索的施工监理过程及控制要点。
The parametric and primary resonances of stay cables excited by the vibration of deck of curved cable-stayed bridge are investigated.
研究由弯斜拉桥桥面振动引起的斜拉索参数共振和主共振问题。
With many advantages, the vacuum aided grouting process is a popular grouting process for prestressed stay cables in the present world.
真空辅助压浆工艺是目前世界上流行的预应力钢束压浆工艺。
The effect of non-linearity of the bearings and pier columns, and of geometric non-linearity of the stay cables upon the aseismatic performance of the bridge structure is also considered in the study.
同时考虑了支座的非线性、拉索的几何非线性和墩柱的非线性等对结构抗震性能的影响。
The results indicated that the robot could climb and paint all stay cables on the cable-stayed bridge efficiently and reliably.
机器人下降时速度较上升时均匀性好,能在斜拉桥缆索上安全高效爬升。
The vibration-absorption mechanism of viscous shearing damper of stay cables and the optimal damping constant of cable viscous damper are analyzed in the paper.
介绍了斜拉索粘性剪切型阻尼减振器的减振原理,并对拉索阻尼器的最佳阻尼系数进行了分析;仿真计算表明,阻尼器具有良好的减振效果。
Stay cables of Zhangzhou War Preparation Bridge use cable system of OVM200 parallel steel wire rope.
漳州战备大桥斜拉索采用OVM2 0 0型平行钢绞线拉索体系。
The parametric and subharmonic resonances of stay cables excited by the vibration of deck are investigated.
研究了一类滞后非线性系统在多频激励下的超谐共振和亚谐共振。
Therefore, how to mitigate the vibration of stay cables is of great importantance in practice.
因此,如何抑制斜拉索的振动是一个具有重要工程意义的研究课题。
Therefore, how to mitigate the vibration of stay cables is of great importantance in practice.
因此,如何抑制斜拉索的振动是一个具有重要工程意义的研究课题。
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