1)steel tower钢塔
1.TMD,TLD and performance tests for vibration control of steel tower of large span cable-stayed bridge during construction;大跨度斜拉桥钢塔施工阶段制振用TMD、TLD装置及其性能试验
2.Non-classical mode superposition method for earthquake response of a reinforced concrete building with a steel tower atop it;非经典振型分解法求混凝土房屋及其上钢塔的地震响应
3.Steel tower pneumatic selection,power-transfer design in steel concrete combination section and anti-vibration measures in tower construction stage,it provides a reference for the same kind of steel tower design.对南京长江第三大桥钢塔的抗风性能及钢塔的气动选型、钢混结合段的传力设计及钢塔施工阶段的抗振措施作了简要的介绍,为同类型的钢塔设计提供参考。
英文短句/例句
1.Study on Joints, Spindle and Tower Structure of Cast Steel;铸钢节点铸钢轴和铸钢塔结构的研究
2.Double Earthquake Damping Control Research of Vibration Isolation of Building Roof Steel Tower Bottom and Building Roof Steel Tower as TMD;屋顶钢塔TMD和塔底隔震双重减震性能研究
3.Analysis the Causes of Hot Rolled Strip's Turriform of Shougang Jingtang 2250首钢京唐2250热轧带钢塔形产生原因解析
4.The towers are surfaced with steel plates.在塔面上加了一层钢板。
5.The cables intersect the tower or pylon at different heights.钢索在桥塔或塔柱的不同高度上相交。
6.Optimization of the Steel Pylon s Constitutions and Analysis of Pylon Style s Mechanics Characters;钢索塔构造优化与塔形力学特性分析
7.Cracking in Atmospheric Distillation Pipe of 304# Stainless Steel Material at Atmospheric Column Tower Top常压塔塔顶304不锈钢馏出线开裂分析
8.Analysis of Elastic-Plastic Stability for Middle Steel Tower of Triple-Tower Suspension Bridge三塔悬索桥钢中塔弹塑性稳定性分析
9.Design of Middle Steel Tower on Triple-Tower Suspension Bridge of Taizhou Yangtze River Bridge泰州长江大桥三塔悬索桥钢中塔设计
10.STUDY ON SPLICE JOINT OF THE STEEL-PIPE COLUMN FOR A COMPLEX TV TOWER DESIGN复杂钢管结构电视塔塔柱拼接形式研究
11.Vortex-induced Vibration Reduction of Steel Free-stangding Tower Using Tuned Liquid Damper钢桥塔裸塔状态涡激振动的TLD减振方法研究
12.Study on Physical Properties of Low Carbon Steel 20g and the Deformation Mechanism of Coke Drum;焦炭塔塔体材质20g钢的物性研究与塔体变形机理分析
13.Design of the Communication Tower with the Composite Structure of the Square-shaped Steel Tube and Angle Steel四边形钢管角钢组合结构通信塔的设计
14.Research on bearing capacity of "tube and ear-plate joint" for high-voltage transmission tower高压输电塔高强钢钢管-耳板节点承载力研究
15.Rectangular Steel Rope Used for UHV Transmission Line Tower Lifting Rope用无捻钢绳作特高输电线铁塔起吊钢绳议析
16.Steel products--Method for etch test of tower sampleGB/T15711-1995钢材塔形发纹酸浸检验方法
17.Steel products--Method for magnetic particle inspection of tower sampleGB/T10121-1988钢材塔形发纹磁粉检验方法
18.Also, workers tied strong steel cables around the structure.同时，工人们绕着塔系上了坚硬的钢索，
相关短句/例句
steel tower钢塔架
1.Because the wind load and the structural wind-induced response have the fluctuating property of wide frequency and varied amplitude, the fatigue damage should be considered in the design of slender steel towers always under wind a.由于风荷载和结构风振响应具有宽频变幅的波动特性,经常受到风作用的柔性钢塔架设计中需要考虑疲劳损伤的作用。
3)angle steel for iron tower铁塔角钢
1.Methods and practice of angle steel for iron tower quality improvement;铁塔角钢质量改进措施与探讨
4)steel tower column钢塔柱
1.Besides concrete and steel composition section,the steel tower column is divided into 21 sections.整个索塔呈人字形并由3个横梁联结,除钢混结合段外,钢塔柱共分21个节段安装。
2.With the increase of steel output at home and the advance of bridge design and manufacture, steel tower column is so properly applied to Nanjing No.本文主要介绍南京长江第三大桥钢塔柱的设计及其现场架设控制。
5)steel towers atop buildings楼顶钢塔
1.A new way of anchoring steel towers atop buildings and structural analysis;新型楼顶钢塔的锚固方式及其结构分析
2.In recent years, the steel towers atop buildings have been adopted in many regions in our country with the development of communication business.目前国内这种组合结构体系的动力性能研究得较少,也尚无统一的抗震鉴定标准和设计规范可循,所以研究地震作用时楼顶钢塔的动力特性以及钢塔和主体结构间的相互影响作用成为工程实践不断发展提出的迫切要求。
6)steel-pylon钢索塔
1.Technology of the steel-pylon's process assembling survey of Nanjing Third Yangzi River Bridge南京长江三桥钢索塔现场拼装测量的关键技术
2.Nanjing Third Yangtze River Bridge is the super-huge cable-stayed bridge in China which first applied in the construction of steel-pylon.南京长江三桥为我国首座采用钢索塔的特大型斜拉桥。
3.This paper focuses on the crucial survey technology applied in the construction of steel-pylon, and in combination with requirements of engineering practices some researches have been done in order to advance effective survey methods and measurements.本文针对南京长江第三大桥钢索塔施工中的测量关键技术,结合工程实际进行研究,以期提出行之有效的测量方法、措施。
延伸阅读
45钢和40Cr钢调质的热处理工艺45钢40Cr钢调质调质是淬火加高温回火的双重热处理，其目的是使工件具有良好的综合机械性能。调质钢有碳素调质钢和合金调质钢二大类，不管是碳钢还是合金钢，其含碳量控制比较严格。如果含碳量过高，调质后工件的强度虽高，但韧性不够，如含碳量过低，韧性提高而强度不足。为使调质件得到好的综合性能，一般含碳量控制在0.30~0.50%。调质淬火时，要求工件整个截面淬透，使工件得到以细针状淬火马氏体为主的显微组织。通过高温回火，得到以均匀回火索氏体为主的显微组织。小型工厂不可能每炉搞金相分析，一般只作硬度测试，这就是说，淬火后的硬度必须达到该材料的淬火硬度，回火后硬度按图要求来检查。工件调质处理的操作，必须严格按工艺文件执行，我们只是对操作过程中如何实施工艺提些看法。1、45钢的调质45钢是中碳结构钢，冷热加工性能都不错，机械性能较好，且价格低、来源广，所以应用广泛。它的最大弱点是淬透性低，截面尺寸大和要求比较高的工件不宜采用。45钢淬火温度在A3+(30~50)℃，在实际操作中，一般是取上限的。偏高的淬火温度可以使工件加热速度加快，表面氧化减少，且能提高工效。为使工件的奥氏体均匀化，就需要足够的保温时间。如果实际装炉量大，就需适当延长保温时间。不然，可能会出现因加热不均匀造成硬度不足的现象。但保温时间过长，也会也出现晶粒粗大，氧化脱碳严重的弊病，影响淬火质量。我们认为，如装炉量大于工艺文件的规定，加热保温时间需延长1/5。因为45钢淬透性低，故应采用冷却速度大的10%盐水溶液。工件入水后，应该淬透，但不是冷透，如果工件在盐水中冷透，就有可能使工件开裂，这是因为当工件冷却到180℃左右时，奥氏体迅速转变为马氏体造成过大的组织应力所致。因此，当淬火工件快冷到该温度区域，就应采取缓冷的方法。由于出水温度难以掌握，须凭经验操作，当水中的工件抖动停止，即可出水空冷（如能油冷更好）。另外，工件入水宜动不宜静，应按照工件的几何形状，作规则运动。静止的冷却介质加上静止的工件，导致硬度不均匀，应力不均匀而使工件变形大，甚至开裂。
