铁路钢桥,railway steel bridge
1)railway steel bridge铁路钢桥
英文短句/例句
1.Analysis of Lateral Railway-strengthen Technique Used in Steel Bridge在役铁路钢桥横向刚度加固技术分析
2.Design and Study of Orthotropic Railway Steel Deck of Nanjing Dashengguan Changjiang River Bridge南京大胜关长江大桥铁路钢桥面设计与研究
3.RESEARCH ON THE DESIGN OF FATIGUE RELIABI LITY OF RAILWAY STEEL BRIDGES AND ON THE FATIGUE LOAD SPECTRUM OF RAILWAY BRIDGES铁路钢桥疲劳可靠度设计及铁路桥梁疲劳荷载谱研究
4.The Application of Reliability theory in the Fatigue Design of Railway Steel Bridges可靠性理论在铁路钢桥疲劳设计中的应用
5.Study on the Fatigue Reliability of Intersection Weld Structural Details of Steel Bridges铁路钢桥交叉焊缝构造细节疲劳可靠度的研究
6.Research on Establishing Method of Fatigue Multiple-line Coefficient in Fatigue Design of Long Span Railway Steel Bridge;大跨度铁路钢桥疲劳多线系数制定方法研究
7.Code for design on steel structure of railway bridge铁路桥梁钢结构设计规范
8.Research on Designing Scheme for V-shaped Continuous Steel Box Girder Bridge in High-speed Railway;高速铁路V形钢箱连续梁桥设计研究
9.Detail Analysis and Research of Railroad Steel Truss Bridge with Integrated Finite Element Method;铁路钢桁梁桥的详细有限元分析研究
10.INVESTIGATION ON PROPERTIES OF 321-Q370q CLAD STEEL PLATE USED IN RAILWAY BRIDGE铁路桥梁用321-Q370q复合钢板性能研究
parison of Bridge Structures of Railway Through Truss Composite Bridges下承式铁路钢桁结合桥的桥式结构比较
12.CALCULATION PRINCIPLES OF EFFECTIVE WIDTH OF ORTHOTROPIC MONOLITHIC STEEL DECK OF HIGH-SPEED RAILWAY TRUSS BRIDGES高速铁路钢桁梁桥正交异性整体钢桥面板有效宽度的计算原则
13.RESEARCH ON DESIGN AND CONSTRUCTION TECHNOLOGY OF PROTECTION SYSTEM FOR BALLASTED STEEL BRIDGE DECK OF STEEL TIED ARCH BRIDGE OVER FUZHOU-XIAMEN RAILWAY福厦铁路钢系杆拱桥有砟钢桥面防护体系设计与施工工艺研究
14.ANALYSIS ON THE CAUSES OF FATIGUE CRACKING IN WELDED STEEL RAILWAY BRIDGES AND ITS TREATMENT铁路焊接钢桥疲劳裂纹原因分析及其对策
15.Construction and Stress Control of Pre-bent Compound Beam of Over-railway Bridge of Anshan Steel Factory鞍钢铁路跨线桥预弯复合梁的施工与应力控制
16.Research and Innovation of Fatigue Design Theory for High Strength Bolt and Weld Steel Railway Bridges铁路栓焊钢桥疲劳设计理论的研究与革新
17.Study on Performance and Safety Design of Fatigue and Fracture in Large-scale Railway Steel Welded Bridge;大型铁路焊接钢桥疲劳断裂性能与安全设计
18.Research on seismic response reduction with viscous dampers in the railway steel truss girder bridge基于黏滞液体阻尼器的铁路钢桁梁桥减震研究
相关短句/例句
Steel railway bridge铁路钢桥
1.According to the construction background,design details of the typical steel railway bridges at different ages,the development bitter course of steel railway bridge in China was introduced,and some key techniques including high strength material,coupled vibration among bridges and vehicles as well as other difficulties caused by long-span were presented.针对中国不同时期建造的铁路钢桥及相应的设计、建造背景,阐述了中国铁路桥梁发展的辛酸历程,提出了铁路钢桥仍需解决钢材高强、车桥耦合共振、大跨度带来的一系列振动等关键技术问题。
3)railway steel truss bridge铁路钢桁桥
4)railway bridge steel铁路桥梁钢
5)existing railway steel truss bridges铁路钢桁梁桥
1.In assessment of condition and service safety ofexisting railway steel truss bridges, it is necessary to establish the 3-dementional finite-element models (3D FEM) which can reflect the actual mechanical behavior.为了评估既有铁路钢桁梁桥的工作状态和使用安全,需要建立能够精确模拟结构目前状态的有限元模型。
6)railway steel plate girder bridge铁路钢板梁桥
1.Due to severe deficiency of vertical and lateral stiffness in mostrailway steel plate girder bridges after train speeds being raised,the bridge structures of existing railways must be strengthened in order to guarantee the safety of railway transportation.由于大部分铁路钢板梁桥在列车提速后竖向刚度和横向刚度都存在严重的不足,为保证铁路运输安全必须对其进行加固,而对其加固效果进行准确评估已成为铁路钢板梁桥研究的重要课题之一。
延伸阅读
钢桥制造以钢板和型钢为主要材料，按照设计制造钢桥构件(包括梁段、杆件及节点板、连接板等)的生产过程。小跨度上承式钢桥，在运输和架设条件许可的情况下，可在工厂内整孔制造。对钢桥制造的质量要求是：制成品的几何尺寸和工地孔眼位置须有较高的精度，以利工地拼装架设；钢材经冷加工或焊接后的物理性能和铆、焊的质量须符合规范规定和验收标准。制造工艺 用辊压机及型钢矫直机先将钢板或型钢整平、调直，再按用施工图(按照设计图分解而成)放样制做的样板、样杆在钢料上划出切割线，用剪切机、电锯或切割机切割钢料。除了用精密焰割机使切割边缘达到光洁度者外，一般需用刨边机或铣边机进行边缘加工。构件在工厂组装，以往常用铆接，现以焊接为主。工地连接过去也用铆接，现多用高强度螺栓连接。铆钉或螺栓的孔眼，可用轨行钻床或手持电钻、风钻制孔。铆接杆件可用风动铆钉枪或铆钉机铆合。焊接杆件应按焊缝类型与设计要求，分别使用埋弧自动焊、半自动焊或手工焊。为保证焊接质量，对高强度或厚钢板可采用预热工艺。高强度螺栓连接的摩擦面，用喷丸（砂）除锈和表面粗糙处理后，喷铝或涂无机富锌漆以保证摩擦系数。构件制成后，经过整修、试装、除锈、油漆（底漆两度、连接面除外）等工序，然后发往工地拼装架设。在钢桥的制造过程中，要有严格的质量检查制度。对于焊缝除进行外观检查外，应按规程或设计要求用超声波或 X光（或у射线）探伤检验。工艺装备 主要有胎型、卡具和钻孔套样板。胎型的功能是用其挡具来控制构件的几何形状及尺寸，一般由底盘、定位挡具及托架组成，分固定和转动两种形式。桁架梁的铆接纵梁和横梁,可在专用的固定胎型组装,用冲钉及组装螺栓固定各料件的相对位置后，扳开挡具将构件吊出胎型，再行铆合。主桁杆件则可用卡具控制其截面宽度。焊接桁梁构件或箱形梁段，可用卡具或胎型控制其各部尺寸，并用定位焊固定其料件的相对位置后，再移到转胎内施焊（为避免仰焊以保质量）。钻孔套样板习称机器样板，它是在厚度最小为12毫米的钢板上按照孔眼位置镶嵌渗碳钢钻孔套而成。钻孔套硬度高于钻头，其位置及内径尺寸精度高，用它控制钻孔，可保证孔眼精度。近年来，数控技术已逐步应用到钢桥制造的放样、焰割、制孔等工序，使钢桥生产自动化程度和产品质量得到显著提高。参考书目钟用达：《普通钢桥》,人民铁道出版社,北京，1957。中国土木工程学会箱形钢梁焊接技术考查组：《日本栓焊钢桥设计与制造》，中国铁道出版社，北京，1980。
