[1]马辉,强佳琪,张国恒,等.冷弯薄壁高强度合金钢光伏支架构件连接抗剪性能试验研究[J].自然灾害学报,2022,31(05):047-54.[doi:10.13577/j.jnd.2022.0506]
 MA Hui,QIANG Jiaqi,ZHANG Guoheng,et al.Experimental study on shear behavior of photovoltaic bracket members connection with the high-strength cold-formed thin-walled steel[J].,2022,31(05):047-54.[doi:10.13577/j.jnd.2022.0506]
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冷弯薄壁高强度合金钢光伏支架构件连接抗剪性能试验研究
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
31
期数:
2022年05期
页码:
047-54
栏目:
出版日期:
2022-10-28

文章信息/Info

Title:
Experimental study on shear behavior of photovoltaic bracket members connection with the high-strength cold-formed thin-walled steel
作者:
马辉12 强佳琪2 张国恒2 刘方达2 刘喜洋2
1. 西安理工大学 省部共建西北旱区生态水利国家重点实验室, 陕西 西安 710048;
2. 西安理工大学 土木建筑工程学院, 陕西 西安 710048
Author(s):
MA Hui12 QIANG Jiaqi2 ZHANG Guoheng2 LIU Fangda2 LIU Xiyang2
1. State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi’an University of Technology, Xi’an 710048, China;
2. School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China
关键词:
冷弯薄壁型钢高强度合金钢光伏支架抗剪承载力力学性能
Keywords:
cold-formed thin-walled steelhigh-strength alloy steelphotovoltaic bracketshear-bearing capacitymechanical properties
分类号:
TU392;TU317+.1
DOI:
10.13577/j.jnd.2022.0506
摘要:
为研究冷弯薄壁高强度合金钢光伏支架构件连接的抗剪力学性能,文中对24个光伏支架连接试件进行了抗剪承载力试验,重点研究了构件腹板及翼缘分别采用螺栓连接的力学性能,观察了试件的破坏过程及破坏形态,获取了试件的荷载-位移曲线和极限承载力,结果表明:达到峰值荷载时,试件翼缘上的自攻螺钉首先被剪断,其次螺栓附近的冷弯薄壁钢板被压屈服,试件发生典型的承压破坏;与螺栓在翼缘上的试件相比,螺栓在腹板上的试件刚度大,但试件延性降低。基于现有规范中的相关计算公式,提出了冷弯薄壁高强度合金钢光伏支架构件连接的承载力修正计算公式,计算值与试验值吻合较好,研究结论可为冷弯薄壁高强度合金钢光伏支架的工程应用提供参考。
Abstract:
In order to study the shear mechanical properties of photovoltaic bracket member connection with the high-strength cold-formed thin-walled steel,24 photovoltaic bracket connection specimens were tested for shear capacity. The mechanical properties of web and flange connected by bolts were mainly studied. The failure process and failure mode of the specimens were observed,and the load-displacement curve and ultimate bearing capacity of the specimens were obtained. The results show that when the peak load is reached,the self-drilling screw on the flange of the specimen is cut first,and then the cold-formed thin-walled steel plate near the bolt is compressed to yield,which leads to the typical bearing failure of the specimen. Compared with the specimen of the bolt on the flange,the stiffness of the specimen of the bolt on the web is larger,but the ductility is lower.Based on the relevant calculation formulas in the technical code,a modified calculation formula for calculating the bearing capacity of photovoltaic bracket member connection with the high-strength cold-formed thin-walled steel was proposed,and the calculation values were in good agreement with the test values. The research conclusion can provide reference for the engineering application of the photovoltaic bracket with the high-strength cold-formed thin-walled steel.

参考文献/References:

[1] 徐东,张洪信,高雷,等. 青岛市太阳能光伏电站及其支架设计[J]. 青岛大学学报(工程技术版),2016,31(2):59-64,70. XU Dong,ZHANG Hongxin,GAO Lei,et al. Design of photovoltaic power station and support bracket of solar energy in Qingdao[J]. Journal of Qingdao University(Engineering & Technology Edition),2016,31(2):59-64,70.(in Chinese)
[2] 徐彩芝,陆志平. 光伏电站支架选型研究探讨[J]. 内蒙古农业大学学报(自然科学版),2014,35(6):105-109. XU Caizhi,LU Zhiping. Discussion on selection of photovoltaic power plants bracket[J]. Journal of Inner Mongolia Agricultural University (Natural Science Edition),2014,35(6):105-109.(in Chinese)
[3] 王新堂,童海伦,徐金灿. 薄壁钢桁架-轻骨料混凝土叠合板火灾后受力性能试验研究[J]. 自然灾害学报,2016,25(2):127-138. WANG Xintang,TONG Hailun,XU Jincan. Experimental study on postfire mechanical property of thinwalled steel trussceramsite concrete laminated slabs[J]. Journal of Natural Disasters,2016,25(2):127-138.(in Chinese)
[4] 王新堂,王硕煜,刘链波. 薄壁钢-轻质混凝土组合楼板的受火后力学性能及评估模型研究[J]. 自然灾害学报,2021,30(1):28-37. WANG Xintang,WANG Shuoyu,LIU Lianbo. Study of postfire mechanical performance and evaluation model of thinwalled steellightweight concrete composite slab[J]. Journal of Natural Disasters,2021,30(1):28-37.(in Chinese)
[5] 沈祖炎,李元齐,王磊,等. 屈服强度550MPa高强冷弯薄壁型钢结构轴心受压构件可靠度分析[J]. 建筑结构学报,2006,27(3):26- 33,41. SHEN Zuyan,LI Yuanqi,WANG Lei,et al. Reliability analysis of 550MPa highstrength coldformed thinwalled steel structures[J]. Journal of Building Structures,2006,27(3):26-33,41.(in Chinese)
[6] 卢林枫,张亚平,方文琦,等. 冷弯薄壁型钢自攻螺钉连接抗剪性能试验研究[J]. 中南大学学报(自然科学版),2013,44(7):2997- 3005. LU Linfeng,ZHANG Yaping,FANG Wenqi,et al. Experimental investigation on shearbearing capacity for selfdrilling screw connections of coldformed thinwalled steel[J]. Journal of Central South University(Science and Technology),2013,44(7):2997-3005.(in Chinese)
[7] 谢志强,张爱林,闫维明,等. 冷弯薄壁型钢螺钉-铆钉混合连接受剪性能及计算方法研究[J]. 建筑结构学报,2020,41(10):160- 172. XIE Zhiqiang,ZHANG Ailin,YAN Weiming,et al. Research on shear behavior and calculation method for screwrivet hybrid connection in coldformed thinwalled steel[J]. Journal of Building Structures,2020,41(10):160-172.(in Chinese)
[8] 闫维明,慕婷婷,谢志强,等. 装配式冷弯薄壁型钢结构中4种连接的抗剪性能试验研究[J]. 北京工业大学学报,2018,44(8):1099- 1108. YAN Weiming,MU Tingting,XIE Zhiqiang,et al. Experimental study on shear behavior of four connections in fabricated coldformed thinwalled steel structures[J]. Journal of Beijing University of Technology,2018,44(8):1099-1108.(in Chinese)
[9] DONG S E,LI H R,WEN Q P. Study on distortional buckling performance of coldformed thinwalled steel flexural members with stiffeners in the flange[J]. ThinWalled Structures,2015,95(10):161-169.
[10] DUBINA D,UNGUREANU V. Effect of imperfections on numerical simulation of instability behaviour of coldformed steel members[J]. ThinWalled Structures,2002,40(3):239-262.
[11] XIE Z Q,YAN W M,YU C,et al. Tensile capacity of selfpiercing rivet connections in thinwalled steel structures[J]. Journal of Constructional Steel Research,2018,144(5):211-220.
[12] ZAGARI G,ZUCCO G,MADEO A,et al. Evaluation of the erosion of critical buckling load of coldformed steel members in compression based on Koiter asymptotic analysis[J]. ThinWalled Structures,2016,108(11):193-204.
[13] KULATUNGA M P,MACDONALD M. Investigation of coldformed steel structural members with perforations of different arrangements subjected to compression loading[J]. ThinWalled Structures,2013,67(6):78-87.
[14] 郭俊杰,朱华,周安. 冷弯薄壁型钢高强螺栓连接抗剪性能研究[J]. 工程与建设,2020,34(6):1031-1034. GUO Junjie,ZHU Hua,ZHOU An. Study on shear behavior of high strength bolt connection of coldformed thinwalled steel[J]. Engineering and Construction,2020,34(6):1031-1034.(in Chinese)

备注/Memo

备注/Memo:
收稿日期:2021-5-1;改回日期:2021-8-12。
基金项目:国家自然科学基金项目(51408485); 陕西省自然科学基础研究计划项目(2022JM-258)
作者简介:马辉(1985-),男,副教授,博士,主要从事钢与混凝土组合结构及混合结构研究.E-mail:mahuiwell@163.com
更新日期/Last Update: 1900-01-01