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管学理 《南宁职业技术学院学报》2013,(5):82-84
桥梁模型对桥梁设计起到辅助作用。利用CNC技术进行雕刻拼接制作桥梁模型,是目前先进的模型设计与制作技术,设计人员、操作员不仅需要利用合适的材料进行创意设计,更需要熟练使用专业的三维工业设计软件进行绘图合理规划工艺,制作出符合设计师设计理念的桥梁模型。 相似文献
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本文强调了在现代桥梁建筑设计中美学设计的重要意义,对桥梁建筑美学设计中形式美、功能美和协调美三个重要美学要素进行了介绍分析,并指出了当今桥梁设计中存在的问题以及未来的发展趋向. 相似文献
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The expansion joints are expected to have movement capacity, bearing capacity for static and dynamic loading, water-tightness, low noise emission and traffic safety. In particular, the failure due to impact loading is the main reason for the observed damages. The problem of dynamic behavior of the expansion joints is so complex that we shall focus our attention on the impact factor for vehicle load that is governed by traffic impact. In order to overcome this difficulty, the cantilever-toothed aluminum joint (finger joint) is one of the promising joints under impact loading. In this study, from the viewpoint of design methodology, numerical studies for impact behavior were conducted for aluminum alloy expansion joints with perforated dowels. The design impact factor for the expansion joints with the perforated dowels against traffic impact loading was examined by using numerical simulations. 相似文献
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过桥车辆对行人舒适度影响的评价 总被引：1，自引：0，他引：1
以简支桥梁为例,建立了车辆过桥时的动力学模型,并引入相关的行人舒适性评价方法,给出了相关的评价结果.狄克曼指标K的评价结果表明,行人的舒适度随着距离跨中的远近而显著变化,在跨中附近舒适度最差.振动感觉指标VG的评价结果表明,行人的舒适度随着过往车辆车速的增大而明显降低.综合狄克曼指标K和振动感觉指标VG的优点,可以对桥上行人的舒适度进行更加全面的评价. 相似文献
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The dynamic interaction between maglev vehicle and three-span continuous guideway is discussed. With the consideration of control system, the dynamic interaction model has been developed. Numerical simulation has been performed to study dynamic characteristics of the guideway. The results show that bending rigidity, vehicle speed, span ratio and primary frequency all have important influences on the dynamic characteristics of the guideway and there is no distinct trend towards resonance vibration when fl/（v/l） equals 1.0. The definite way is to control impact coefficient and acceleration of the guideway. The conclusions can serve the design of high-speed maglev three-span continuous guideway. 相似文献
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姚豪 《商情·科学教育家》2013,(25)
近年来,在我省实施的高速公路中,高墩柱的桥梁越来越多,为了更好的控制好桥梁高墩柱的施工质量及安全,根据我多年的施工经验和本标段的桥梁施工,介绍一下桥梁高墩柱的施工质量控制要点及安全方面. 相似文献
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许多一线教师对课堂教学内容和教学环节的过渡不够重视或不得要领，使课堂教学过程没有跌宕起伏而缺乏生气，如何通过巧妙“架桥”把课堂引入一波三折，这是值得我们认真研究的一个“小”问题。 相似文献
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本文分析了超限运输对各种桥梁结构及桥面系的破坏机理及病害状况，并探讨了解决对策及桥梁养护中应注意的问题。 相似文献
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