冷弯薄壁C型钢双肢闭合拼合柱的极限承载力研究

董事尔; 杨博; 张爱荣

doi:10.13204/j.gyjzG21070506

冷弯薄壁C型钢双肢闭合拼合柱的极限承载力研究

doi: 10.13204/j.gyjzG21070506

1. 西南石油大学土木工程与测绘学院, 成都 610500;
2. 俊发集团有限公司, 昆明 650000

基金项目:

国家自然科学基金项目(51574198)。

详细信息

作者简介:
董事尔,男,1963年出生,教授。电子信箱:ds_xyz@sina.com。

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出版历程
- 收稿日期: 2021-07-05

Research on Ultimate Bearing Capacity of Cold-Formed Thin-Walled C-Section Steel Double-Limbed Closed Built-up Columns

1. School of Civil Engineering and Geomatics, Southwest Petroleum University, Chengdu 610500, China;
2. Junfa Group Limited, Kunming 650000, China

摘要

摘要: 为得到冷弯薄壁C型钢双肢闭合拼合柱的极限承载力的计算公式,采用有限条软件CUFSM以及直接强度法DSM计算得到单肢冷弯薄壁C型钢构件的极限承载力,并运用ABAQUS有限元分析软件计算出轴压作用下的冷弯薄壁C型钢双肢闭合拼合柱的极限承载力。通过对比不同截面几何参数下的单肢冷弯薄壁C型钢构件与冷弯薄壁C型钢双肢闭合拼合柱的极限承载力,分析得到各个参数对拼合柱组合效应系数的影响规律,确定出组合效应系数与两个重要参数的函数关系。采用1stopt拟合软件对大量已得到的组合效应数值进行回归分析,建立了冷弯薄壁C型钢双肢闭合拼合柱的组合效应系数简化公式以及极限承载力计算公式。
- 冷弯薄壁C型钢 /
- 双肢闭合拼合柱 /
- 极限承载力 /
- 组合效应 /
- DSM
Abstract: In order to obtain the calculation formula of the ultimate bearing capacity of cold-formed thin-walled C-shaped steel double-limbed closed built-up columns, the line software CUFSM and the direct strength method DSM were used to calculate the ultimate bearing capacity of single-limbed cold-formed thin-walled C-shaped steel member. ABAQUS finite element analysis software was used to calculate the ultimate bearing capacity of cold-formed thin-walled C-shaped steel double-limbed closed built-up columns under axial compression. By comparing the ultimate bearing capacity of single-limb cold-formed thin-walled C-shaped steel members and cold-formed thin-walled C-shaped steel double-limbed closed built-up columns under different cross-sectional geometric parameters, the influence of each parameter on the combined effect coefficients of built-up columns was determined, as well as the relations between combined effect coefficients and two important parameters. The 1stopt fitting software was used to perform regression analysis on a large number of obtained combined effect values, and the combined effect coefficient simplified formula and ultimate bearing capacity calculation formula of cold-formed thin-walled C-shaped steel double-limbed closed built-up columns were established.
- cold-formed thin-walled C-shaped steel /
- double-limbed closed built-up column /
- ultimate bearing capacity /
- combined effect /
- DSM

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参考文献(30)

[1]	WEI W Y, DON S E, WOLFORD A L. Golden anniversary of the AISI specification, recent research and developments in cold-formed steel design and construction[C]//Proceedings of the 13th International Specialty Conference on Cold-Formed Steel Structures. 1996.
[2]	WEI W Y. Cold-formed steel design[M]. New Jersey:Wiley, 2000.
[3]	尹稷华, 杨亚君. 新农村防灾、环境改善建设与薄壁轻钢建筑体系[J]. 住宅产业, 2012(11):57-59.
[4]	刘飞,李元齐,张继承.低层冷弯薄壁型钢结构抗震性能分析[J]. 长江大学学报(自然科学版), 2009, 6(1):91-95.
[5]	吴晓烽.C型截面冷弯薄壁型钢檩条的屈曲研究[D].宁波:宁波大学,2013.
[6]	薛发,刘定荣.冷弯薄壁型钢住宅体系及其在中国的应用和发展[J].建筑技术及设计, 2008(2):82-85.
[7]	中华人民共和国住房和城乡建设部.冷弯薄壁型钢结构技术规范:GB 50018-2002[S].北京:中国计划出版社,2002.
[8]	中华人民共和国住房和城乡建设部.低层冷弯薄壁型钢房屋建筑技术规程:JGJ 227-2011[S]. 北京:中国建筑工业出版社, 2011.
[9]	AISI. Commentary on the standard for cold-formed steel framing-prescriptive method for one and two family dwellings[S]. Washington D C:American Iron and Steel Institute, 2003.
[10]	李方涛.冷弯薄壁型钢双肢抱合箱形截面柱轴向受力性能研究[D].西安:长安大学,2015.
[11]	GREGORY K P. An investigation of the effects of fastener spacing in build-up cold-formed steel compression members[D].Canada:Dalhousie University, 2003.
[12]	YOUNG B,ASCE M, CHEN J. Design of cold-formed steel built-up closed sections with intermediate stiffeners[J]. Journal of Structural Engineering, 2008, 134(5):727-737.
[13]	GEORGIEVA I, SCHUEREMANS L, PYL L. Experimental investigation of built-up double-Z members in bending and compression[J]. Thin-Walled Structures, 2012,53(4):48-57.
[14]	GEORGIEVA I, SCHUEREMANS L, VANDEWALLE L, et al. Numerical study of built-up double-Z members in bending and compression[J]. Thin-Walled Structures,2012,60(11):85-97.
[15]	罗鑫,周天华.冷弯薄壁型钢双肢闭合截面拼合立柱轴压性能有限元分析[J].施工技术,2015,44(增刊):535-539.
[16]	聂少锋,周天华,周绪红,等.双肢冷弯薄壁型钢拼合箱形柱受压试验研究与有限元分析[J].建筑结构学报,2017,38(10):10-20.
[17]	NAS. Design of cold-formed steel structural members using the direct strength method[S]. Washington D C:American Iron and Steel Institute, 2004.
[18]	王春刚,壮南,张耀春,冷弯薄壁斜卷边槽钢轴压构件承载力计算的直接强度法研究[J].工程力学,2012, 29(3):75-82.
[19]	何保康,蒋路.冷弯薄壁型钢构件的直接强度法[J]. 建筑结构学报, 2007, 37(1):20-23.
[20]	AISI. North American specification for the design of cold-formed steelstructural members:AISI S100-2007[S]. Washington D.C:American Iron and Steel Institute, 2007.
[21]	李元齐,李英磊,王树坤,等.冷弯薄壁型钢双肢拼合构件轴压承载力研究[J].建筑结构学报,2014,35(12):104-113.
[22]	聂少锋,霍洋洋,周天华,等.冷弯薄壁型钢四肢拼合箱形柱偏压受力性能试验研究与数值分析[J].土木工程学报,2016,49(10):1-10.
[23]	聂少锋,周天华,周绪红,等.冷弯薄壁型钢四肢拼合箱形柱轴压性能试验[J].长安大学学报(自然科学版),2017,37(3):72-81.
[24]	王广.冷弯薄壁卷边槽钢受压畸变屈曲性能分析[D].杭州:浙江大学, 2007.
[25]	王士奇,董军.轴心受压冷成型钢厚壁钢构件非线性有限元分析[J].建筑结构, 2004(增刊):63-65.
[26]	李久宪,张丹,李方涛,等.冷弯薄壁型钢四肢双箱形拼合柱轴压性能有限元分析[J].施工技术,2014,43(增刊2):412-415.
[27]	ABDEL-RAHMAN N, SIVAKUMARRAN K S. Material properties models for analysis of cold-formed steel members[J].Journal of Structures Engineering, 1997,123(9):1135-1143.
[28]	王旭东.冷弯薄壁型钢六肢拼合截面立柱受压受力性能研究[D].西安:长安大学,2016.
[29]	聂少锋,周天华,周绪红,等.三肢冷弯薄壁型钢拼合双腔箱形柱受压性能试验研究与数值分析[J].东南大学学报(自然科学版),2019,49(1):25-33.
[30]	罗鑫.冷弯薄壁型钢双肢闭合截面拼合立柱受压受力性能研究[D].西安:长安大学,2016.