卷边角度对C型冷弯构件抗畸变屈曲性能的影响
PDF下载 (363)孙国军赵银海2黄栩浩1朱珏1.卷边角度对C型冷弯构件抗畸变屈曲性能的影响[J].宁波大学学报(理工版),2015,28(03):68-73.DOI:
SUN Guo-jun1,ZHAO Yin-hai2*,HUANG Xu-hao1,ZHU Jue1*.Influence of Angle of Lip on Performance against Distortional Buckling of C-section Cold-formed Members[J].Journal of Ningbo University(Natural Science & Engineering Edition),2015,28(03):68-73.DOI:
| Title: | Influence of Angle of Lip on Performance against Distortional Buckling of C-section Cold-formed Members |
| 作者: | 孙国军赵银海2黄栩浩1朱珏1, ZHAO Yin-hai2*, HUANG Xu-hao1, ZHU Jue1* |
| Author(s): | SUN Guo-jun1, ZHAO Yin-hai2*, HUANG Xu-hao1, ZHU Jue1* |
| 关键词: | 斜卷边槽钢; 卷边角度; 直接强度法; 畸变屈曲; 极限承载力 |
| Keywords: | inclined lipped channel steel; angle of lip; direct strength method; distortional buckling; ultimate bearing capacity |
| 分类号: | TU392.1 |
| 文献标识码: | A |
| 摘要: | 应用有限条程序研究斜卷边的角度对轴压和纯弯作用下C型截面冷弯钢构件的畸变屈曲临界应力的影响. 采用直接强度计算法分别得到各构件受畸变屈曲后的极限承载力, 并与直卷边构件的计算结果进行对比. 结果表明: 受轴压和纯弯作用下, 卷边与水平方向夹角在90°~120°之间时, 构件的畸变屈曲极限承载力有不同程度的提升, 在105°时构件的极限承载力提升最为明显. 结果可供C型冷弯薄壁斜卷边槽钢工程设计参考. |
| Abstract: | The influence of angle of lip on the critical stresses of distortional buckling of cold-formed C-section flexural members and compression members is studied using Finite Strip. Using the Direct Strength Method, the ultimate load capacities of the distortional buckling members are obtained, and the results are compared with the results calculated from the upright lipped members. It shows that the ultimate capacities are improved to varying extents for the angle of lip ranging from 90° to 120°, and both anti compressive and flexural capacities are obviously increased at the angle of 105°. The findings may be rendered as a reference in engineering design of the C-section cold-formed lipped steel members |
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| 备注/Memo: | 收稿日期: 2014?07?03. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 第47批教育部留学回国人员科研启动基金; 浙江省自然科学基金（LY13A020007）; 宁波市自然科学基金（2012A610162）; 浙江省教育厅科研项目（Y201121000）; 宁波大学王宽诚幸福基金. 第一作者: 孙国军（1989－）, 男, 辽宁丹东人, 在读硕士研究生, 主要研究方向: 冷弯钢结构畸变屈曲机理. E-mail: 15888022572@163.com *通信作者: 赵银海（1975－）, 男, 浙江诸暨人, 高级工程师, 主要研究方向: 钢结构的设计和施工. E-mail: 13777115411@139.com 朱珏（1979－）, 女, 浙江金华人, 副教授, 主要研究方向: 冷弯钢结构稳定性分析. E-mail: zhujue@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
