Although cold - formed rectangular tube - steel column is favorable to industrialization of mass production , the cold forming process increase the yield point and tensile strength , at the same time the cold forming process decrease the ductile behavior , so it ’ s necessary to research the seismic behavior of cold - formed rectangular tube - steel column for architecture structure 冷弯矩形钢管虽然可以实现大批量工厂化生产,但冷弯矩形钢管在冷成型过程提高了材料的屈服点和抗拉强度同时降低了延性,因而冷弯矩形钢管作为柱材在建筑结构抗震中的应用有待进一步研究。
In this paper , the buckling behavior of cold - formed angle members is studied by non - linear finite element method . the influence of the width - thickness ratio of the single cold - formed angle column under axial load is analysed . the criteria of flexural buckling and torsional - flexural buckling for cold - formed egual - leg under axial loads is presented . according the calculating results of the ansys finite element method , the stability - coefficient formulas are simulated for the cold - formed loading single angle members of flexural buckling and torsional - flexural buckling 本文运用非线性有限元法对冷成型单角钢的稳定性能进行了研究，分析了宽厚比对冷成型单角钢轴压杆稳定性能的影响，给出了等边冷弯角钢发生弯曲屈曲和弯扭屈曲的判断条件，根据ansys有限元的计算结果拟合出了冷成型单角钢轴压杆在发生弯曲屈曲以及在发生弯扭屈曲时的稳定系数公式，在此基础上得出了冷成型单角钢轴压杆在所有长细比情况下的稳定系数公式。
Light gauge steel construction whose structural framing is constitutive of cold - formed steel members has been on a rapidly increasing sacle and has been used for low residential construction widely in the world since the construction has a series of prominent advantages such as light weight , high strength and stiffness , energy saving , environmental protection , ease of prefabrication and mass production , fast and easy erection and installation and so on , but its research and application has just begun in our country 全部采用冷成型钢构件作为结构受力骨架的轻钢龙骨住宅体系具有轻质、高强、节能、环保、施工速度快、易于产业化等特点，近年来在国际上发展迅速并广泛用于低层住宅，但在我国研究和应用还处于启动阶段。
With the rapid development in chinese economy , the steel structure and thin - walled colded - formed steel structures have been widely used in building constructions . the colded - formed angle members are one of important member in steel structures and are widely used in transmission towers , trusses and bracing members by its easy connection and erection 随着我国经济的飞速发展，钢结构冷弯薄壁型钢结构在建筑中应用越来越多，冷成型角钢构件是钢结构中的一类重要构件，它具有易安装和连接方便的优点广泛应用于塔结构、格构柱、桁架结构及支撑等结构。
Concerning the tests , analyses , design and calculation of performances for light gauge steel framing , this paper focuses on following items : ( 1 ) the calculation of light gauge steel framed compound bearing walls ( lgsfcbw ) in compression and bending . based on north american specification and commentary for the design of cold - formed steel structural members , which was published by the american iron and steel institute , the detailed design requirements of wall stud assemblies are given considering the structural contribution of the attached sheathings and shear diaphragm is discussed briefly . then the calculational theoretic and method for sheathing braced wall stud assemblies complying with national code is brought up in compression and bending 本文围绕轻钢龙骨体系结构性能的试验、分析、设计和计算，主要进行了以下四方面的研究工作： ( 1 )轻钢龙骨复合承载墙体的受压、受弯计算：以美国钢铁协会发行的北美冷成型钢构件设计规范及其规范说明为依据，重点考虑罩面材料对墙龙骨设计的影响，给出了目前对承重墙龙骨设计的具体要求，并对剪力蒙皮进行了简要讨论；然后提出了符合我国规范术语的剪力蒙皮作用的轻钢龙骨复合承载墙体(即罩面支撑墙龙骨)受压、受弯的计算理论和方法；最后对提出的计算进行简化，使之完全与我国规范相符。
The calculation results of ansys finite element method are compared with the experimental values and also compared with the results of the design - formulas in the current china specification gb50018 - 2002 and the unreasonable items in the specification gb50018 - 2002 about the axial load cold - formed angle members are pointed out and suggestion for improving the specification gb50018 - 2002 are also presented in this paper 将ansys有限元的计算结果与实验值做了比较，此外还将ansys有限元的拟合公式与现行规范( gb50018 ? 2002 )设计公式的计算结果做了比较，指出了现行规范关于冷成型单角钢轴压杆设计的不妥之处，论文对现行规范提出了改进建议。
