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钢桁架桥梁
相关语句
  steel truss bridge
     Preliminary Study on Steel Truss Bridge Health Monitoring
     钢桁架桥梁健康诊断的初步研究
短句来源
     By analyzing, the conclusion here is that for the large-span steel truss bridge with the lower stiffness of the main girder, when the speed of vehicle is high, the dynamic response of the coupling of vehicles and bridge is obvious, especially the dynamic lateral response of the system.
     分析表明:主梁较柔的大跨度钢桁架桥梁,车辆高速行驶对其动力响应特别是横向动力响应影响显著.
短句来源
     Based on the steel truss bridge mode of 1∶10 scale, the identification methods of bridge structure damage detection was discussed. By finite element method and hammer pound method with Varied-Time-Base (VTB) technology, the modal test analysis of bridge modal was done.
     本文以1∶10钢桁架桥梁模型为研究对象,用有限元模型及实验模型进行局部损伤的识别,实验采用锤击法及变时基(VTB)技术对桥梁模型进行了模态分析。
短句来源
  “钢桁架桥梁”译为未确定词的双语例句
     Experimental study for damage detection of a steel truss model is the central part in this paper.
     通过模型试验,对钢桁架桥梁进行了健康诊断的初步研究。
短句来源
     On the basis of documentation collection from many countries and the analysis of the predecessors' experiences of fatigue problems, a suitable approach to evaluate the remaining fatigue life of exiting continuous steel truss bridges is development in the paper, in which mechanic behaviors of existing continuous steel truss bridges, fatigue load simulation of highway bridges, method for fatigue life evaluation, S-N curve for rivet and bolt detail, etc.
     论文搜集了大量国内外资料文献,借鉴现有的剩余寿命评估研究成果,根据既有连续钢桁架桥梁的特点和高强度螺栓接头、铆接接头的疲劳性能,对既有钢桁架桥的工作状态、公路桥梁疲劳荷载谱模拟方法、疲劳剩余寿命评估方法、铆接和栓接接头疲劳强度曲线等进行了深入的研究,建立了适合既有连续钢桁梁桥剩余寿命评估的方法。
短句来源
  相似匹配句对
     Application of Steel Truss Supported "U" Shaped Steel Aqueduct
     桁架U型板渡槽
短句来源
     THE STRESS CAPABILITY SITE MEASUREMENT OF STEEL TRUSS
     桁架受力性能实测
短句来源
     Preliminary Study on Steel Truss Bridge Health Monitoring
     桁架桥梁健康诊断的初步研究
短句来源
     -steel,s.
     -,Ti-S.
短句来源
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  steel truss bridge
A typical steel truss bridge with this type of construction is shown in Figure 1.
      
A new retrofit strategy relying on controlled rocking has been proposed to achieve ductile seismic performance of steel truss bridge piers.
      


Commbing with the characteristic of Wanzhou Yangtze River Bridge, the three-dimension discrete freedom model of vehicles and the mode model of bridge are established individually. Through the interactional relationship between the wheels and the tracks, the dynamic model of the coupling vibration of vehicles and bridge are established. The research with the response of coupling vibration of vehicles and bridge of Wanzhou Yangtze River Bridge is made. By analyzing, the conclusion here is that for the large-span...

Commbing with the characteristic of Wanzhou Yangtze River Bridge, the three-dimension discrete freedom model of vehicles and the mode model of bridge are established individually. Through the interactional relationship between the wheels and the tracks, the dynamic model of the coupling vibration of vehicles and bridge are established. The research with the response of coupling vibration of vehicles and bridge of Wanzhou Yangtze River Bridge is made. By analyzing, the conclusion here is that for the large-span steel truss bridge with the lower stiffness of the main girder, when the speed of vehicle is high, the dynamic response of the coupling of vehicles and bridge is obvious, especially the dynamic lateral response of the system.

结合万州长江大桥铁路桥梁的特点,分别建立了车辆的三维离散自由度模型和桥梁的模态模型.通过轮轨作用关系建立了车桥耦合振动的动力模型,并对万州长江大桥的车桥耦合振动进行了研究.分析表明:主梁较柔的大跨度钢桁架桥梁,车辆高速行驶对其动力响应特别是横向动力响应影响显著.

With the rapid development of bridge construction, the quality and life of bridge are paid more attention, it has become the hotspot of research in civil engineering. The method of model analysis is widely used for structure damage detection, in this method frequency and vibration mode are not sensitive parameters of structure damages. It is verified theoretically that the “change of curvature mode shape” are sensitive parameters of structure damages. Based on the steel truss bridge mode of 1∶10 scale, the identification...

With the rapid development of bridge construction, the quality and life of bridge are paid more attention, it has become the hotspot of research in civil engineering. The method of model analysis is widely used for structure damage detection, in this method frequency and vibration mode are not sensitive parameters of structure damages. It is verified theoretically that the “change of curvature mode shape” are sensitive parameters of structure damages. Based on the steel truss bridge mode of 1∶10 scale, the identification methods of bridge structure damage detection was discussed. By finite element method and hammer pound method with Varied-Time-Base (VTB) technology, the modal test analysis of bridge modal was done. It shows that the change of curvature mode shape has an obvious effect to identify the location damage. So it poses a practicable research method for structure damage identification in future.

当前桥梁的安全性问题日益引起人们的广泛关注,对桥梁结构进行状态监测和安全评估成为众多学者的研究课题。在目前所采用的各种方法中,模态分析法的应用最为广泛,通过监测桥梁的模态参数即可获得其状态信息。通常在模态分析中所采用的参数如:固有频率、振型等参数,反映的都是结构的整体特性,难以用来确定故障位置,只有利用能够表征结构局部特性信息的模态参数曲率模态的变化,才能完成桥梁状态监测工作。本文以1∶10钢桁架桥梁模型为研究对象,用有限元模型及实验模型进行局部损伤的识别,实验采用锤击法及变时基(VTB)技术对桥梁模型进行了模态分析。识别表明,通过曲率模态的变化可明显识别结构的损伤部位,取得了很好的识别效果。为今后桥梁结构损伤识别提供了一种可行的研究方法。

 
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