钢结构

Experimental and theoretical study on vibration control of steel frame attached with hysteretic dampers.

钢框架结构软钢阻尼器振动控制的试验及理论研究。

The main works by this paper are as followings: In allusion to the concentrically braced frame, we make use of the STS program to design structure, after pushover analyzing with the program of SAP2000, through iteration and finally solve the structural influencing coefficientare, displacement coefficient, ductility coefficient and overstrength coefficient, then analyze the homologous variety regulation.

本文研究的主要内容如下：基于现行抗震设计规范，针对V型中心支撑钢框架，采用STS进行结构设计，借助于Sap2000程序进行Pushover静力推覆，通过迭代法求解了结构的结构影响系数、位移放大系数、超强系数、延性系数，并分析相应的变化规律。

Sulfide layers were made on the surface of AISI 1045 and SAE 52100 steels by means of low temperature ion sulphurization process. The tribological properties of the sulfide layers were investigated on an SRV reciprocating tester under dry and paraffin oil lubricated conditions. SEM equipped with EDAX and XRD were adopted to analyze the morphology and structure of the sulfide layers. The morphologies and composition of the wear scars were also analyzed.

采用低温离子渗硫技术在45＃钢和GCr15 钢表面形成渗硫层，用SRV 往复摩擦磨损试验机分别在干摩擦和液体石蜡润滑下对渗硫层的摩擦学性能进行了研究，用SEM、EDAX 和XRD研究了渗硫层的形貌和结构，并对磨痕的形貌及成分进行了分析。

When the steel changed in form between Ms and Md,its tensibility enhanced considerably due to s train-induced martensite transformations and transformation-induced plasticity of retained austenite.

该钢在Ms-Md温度之间形变时，应变诱导残留奥氏体向马氏体转变，使结构钢也能产生相变诱发塑性［3］。

On the base of BNL Model, the non-linear space hysteresis model of steel member subjected to space forces is established with the concept of yield surface function and plastic flow rule, consequently the difficult basic problem in the elasto-plastic dynamic response analysis of torsionally coupled steel space frame under bi-directional horizontal earthquakes is solved.

本文以BNL模型为基础，结合屈服面函数概念和塑性流动法则，建立了空间受力钢杆件的非线性空间恢复力模型，解决了空间钢框架结构在双向水平地震作用下弹塑平扭耦合动力反应分析中的一个较难的基本问题。

College of Economics and Business Administration, Nanjing University of Technology, Nanjing 210009, ChinaAbstract: Steel and polyethylene can be really conglutinated together by using constructional conglutination steel-polyethylene composite pipe technology. Their interfacial intensity is far stronger than other composite pipes, and has no disadvantages compared with the others.

采用结构粘接型聚乙烯钢塑复合工艺技术，可使钢与聚乙烯得到真正意义的&复合&，其界面结合的强度远远大于其他复合管的结合强度，且克服了其他复合管技术所存在的缺点。

The stress inspection of steel cable, and the judgment and analysis of health status of steel cable is an unresolved but desiderated problem in engineering field.

对钢缆索的受力状况进行检测，判断和分析钢缆索的结构健康状况，是工程界至今仍未能很好解决但又亟待解决的问题。

ALL-STEEL BODY, sturdy, 14 gauge diamond plate. Tubular frame.

全钢坚固车身：14级菱形钢，管状结构。

Based on the theory of plasticity and the concept of equal-strength design, the general formulas for calculating the plastic limit speed and stresses in the roll body and the axle sleeve are derived.

应用塑性力学方法分析铸钢辊的塑性极限状态，根据等强度设计思想，导出了塑性极限车速的计算公式，建立了塑性极限状态时辊筒与闷头中应力分量的一般公式，进而提出了铸钢辊结构承载潜力评定的方法。

The paper has studied systematically fluid flow behaviors in argon blowing process in ladle furnace and told more suitable position and quantity for blowing argon by means of water model and mathematical simulation, according to the Ladle Furnace of Shi Jiazhuang Iron and Steel Corporation. And it optimized the ladle construction and fluid flow behaviors, so it provided the molten steel with perfect temperature and composition.

本文针对石家庄钢铁有限公司LF-钢包精炼炉，利用水模型和数学模型模拟，系统研究了LF吹氩过程中钢液的流动行为，确定了最佳的钢包吹氩位置以及适宜的吹氩气量，改善了钢包结构，优化了钢液流动状态，为连铸工序提供具有理想温度和成分的钢水奠定了技术基础。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。