- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | CHEN Ming, LU Weibo, WU Zhiyuan, LI Bushuan. Investigation on In-Plane Stability of Double-Limb Cold-Formed C-Shaped Steel Rigid Frame of Yurt[J]. Journal of Southwest Jiaotong University, 2022, 57(1): 215-222. doi: 10.3969/j.issn.0258-2724.20210567
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To solve the instability problem of newly designed double-limb cold-formed C-shaped steel yurts under vertical loads such as ice and snow, the stability performance of a double-limb cold-formed C-shaped steel portal frame with an in-plane toono was investigated. The failure modes and bearing capacity of this type of portal frame were analyzed through testing and numerical simulations using three parameters: the slope of the inclined beam, the height-to-span ratio, and the toono diameter. The results show that increases in the inclined beam slope and the toono diameter can increase the load bearing capacity of the rigid frame, and an increase in the high span ratio of the rigid frame then reduces the rigid frame’s load bearing capacity. Following consideration of the influence of the inclined beam slope and the lateral displacement of the column top, the work in this paper indicates that the inclined beam slope should be designed to be within 20°, where the column effective length coefficient is calculated to be safe according to
| [1] |
DAVIES J M. Inplane stability in portal frame[J]. Journal of Engineering, 1990, 68(1): 1-17.
|
| [2] |
BAIGENT H, HANCOCK G J. The behavior of portal frames composed of cold-formed members[J]. Thin-Walled Structures, 1978: 209-222.
|
| [3] |
ZHANG X, RASMUSSEN K, ZHANG H. Experimental investigation of locally and distortionally buckled portal frames[J]. Journal of Constructional Steel Research, 2016, 122: 517-583.
|
| [4] |
RINCHEN R, RASMUSSEN K. Experiments on long-span cold-formed steel single C-section portal frames[J]. Journal of Structural Engineering, 2019, 146(1): 04019187.1-04019187.18.
|
| [5] |
RINCHEN R, RASMUSSEN K, ZHANG H. Design of cod-formed steel single C-section portal frames[J]. Journal of Constructional Steel Research, 2019, 162: 105722.1-10572.14.
|
| [6] |
刘朝宏,李天. 轻型门式刚架的平面内稳定系数计算[J]. 郑州工业大学学报,2001,22(2): 73-76.
LIU Chaohong, LI Tian. In-plane stability factors calculating of light-weight portal frame[J]. Journal of Zhengzhou University of Technology, 2001, 22(2): 73-76.
|
| [7] |
李天,张哲,刘朝宏. 门式刚架轻钢结构平面内整体稳定分析中的几个问题[J]. 郑州大学学报(工学版),2003,24(1): 16-19. doi: 10.3969/j.issn.1671-6833.2003.01.004
LI Tian, ZHANG Zhe, LIU Chaohong. Discussion on the calculation of in-plane stability of light-weight portal frame[J]. Journal of Zhengzhou University (Engineering Science), 2003, 24(1): 16-19. doi: 10.3969/j.issn.1671-6833.2003.01.004
|
| [8] |
卢林枫,董刘方,周绪红. 冷弯薄壁型钢门式刚架极限承载力影响因素[J]. 重庆建筑大学学报,2008,30(3): 27-31.
LU Linfeng, DONG Liufang, ZHOU Xuhong. Factors affecting the ultimate bearing capacity of cold-formed steel portal frames[J]. Journal of Chongqin Jianzhu University, 2008, 30(3): 27-31.
|
| [9] |
王万祯,郭金池,孙玉萍,等. 偏心支撑半刚接钢框架柱计算长度系数研究[J]. 建筑结构,2010,40(4): 16-18.
WANG Wanzhen, GUO Jinchi, SUN Yuping, et al. Effective length factor of column in eccentrically braced steel frames with semi rigid connections[J]. Building Structure, 2010, 40(4): 16-18.
|
| [10] |
陈明,黄骥辉,赵根田. 组合截面冷弯薄壁型钢结构研究进展[J]. 工程力学,2016,33(12): 1-11. doi: 10.6052/j.issn.1000-4750.2016.05.ST03
CHEN Ming, HUANG Jihui, ZHAO Gentian. Research progress of compound section cold-formed thin-wall steel strutures[J]. Engineering Mechanics, 2016, 33(12): 1-11. doi: 10.6052/j.issn.1000-4750.2016.05.ST03
|
| [11] |
贾文腾. 装配式冷弯C型钢蒙古包设计与受力性能研究[D]. 包头: 内蒙古科技大学, 2019.
|
| [12] |
中华人民共和国住房和城乡建设部. 门式刚架轻型房屋钢结构技术规范: GB 51022—2015 [S]. 北京: 中国建筑工业出版社, 2015.
|
| [13] |
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—2016 [S]. 北京: 中国计划出版社, 2016.
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