[1]张广平,杨飞龙,张 轶,等.光伏支架中螺栓连接和拉铆连接腐蚀前后抗剪性能对比试验研究[J].西安建筑科技大学学报(自然科学版),2022,54(04):569-578.[doi:10.15986/j.1006-7930.2022.04.012]
　ZHANG Guangping,YANG Feilong,ZHANG Yi,et al.Comparative experimental study on shear performance of bolt connection and riveting connection in photovoltaic bracket before and after corrosion[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2022,54(04):569-578.[doi:10.15986/j.1006-7930.2022.04.012]
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光伏支架中螺栓连接和拉铆连接腐蚀前后抗剪性能对比试验研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
54
期数:
2022年04期
页码:
569-578
栏目:
出版日期:
2022-08-28

文章信息/Info

Title:
Comparative experimental study on shear performance of bolt connection and riveting connection in photovoltaic bracket before and after corrosion
文章编号:
1006-7930(2022)04-0569-10
作者:
张广平1; 杨飞龙1; 张 轶1; 杨俊芬2; 3; 李立和2; 焦瑞婕2
(1.中国能源建设集团 甘肃省电力设计院有限公司,甘肃 兰州 730050; 2.西安建筑科技大学 土木工程学院,陕西 西安 710055; 3.西安建筑科技大学 结构工程与抗震教育部重点实验室,陕西 西安 710055)
Author(s):
ZHANG Guangping1; YANG Feilong1; ZHANG Yi1; YANG Junfen2; 3; LI Lihe2; JIAO Ruijie2
(1.China Energy Construction Group Gansu Electric Power Design Institute Co., Ltd, Lanzhou 730050, China; 2.School of Civil Engineering, Xi'an Univ. of Arch. & Tech., Xi'an 710055, China; 3.Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education(XAUAT), Xi'an 710055, China)
关键词:
光伏支架;  螺栓连接;  拉铆连接;  腐蚀;  抗剪承载力
Keywords:
photovoltaic supports;  bolt connection;  rivet connection;  corrosion;  shear capacity
分类号:
TU391
DOI:
10.15986/j.1006-7930.2022.04.012
文献标志码:
A
摘要:
拉铆连接代替普通螺栓连接可以提高光伏支架连接节点的防腐蚀性能,为研究光伏支架中采用拉铆钉代替普通螺栓的可行性,对比分析螺栓和拉铆连接腐蚀前后抗剪性能,分别对M8、M10、M12的4.8级普通螺栓和同规格的小直径拉铆钉进行了腐蚀前后的抗剪承载力试验,分析了两种连接在腐蚀前后的抗剪承载力变化情况、腐蚀机理、腐蚀形貌及构造差异,结果表明:腐蚀后产生的腐蚀坑会造成应力集中,同时腐蚀会降低螺栓和拉铆钉的净截面面积,因而,腐蚀后两种连接的抗剪承载力均有不同程度的降低; 在相同的腐蚀条件下,螺栓的螺帽和螺杆之间的连接存在缝隙,腐蚀介质更容易对其产生侵蚀作用,故腐蚀后螺栓连接的抗剪承载力下降程度较大; 由于拉铆连接铆杆和套环咬合紧密能降低腐蚀对其影响,故腐蚀后拉铆连接的抗剪承载力下降程度较小.
Abstract:
The shear capacity of M8, M10 and M12 grade 4.8 ordinary bolts and small diameter pull rivets of the same specification before and after corrosion were tested respectively. The changes of shear capacity, corrosion mechanism, corrosion morphology and structural differences between the two connections before and after corrosion were analyzed. The results show that the corrosion pit will cause stress concentration and reduce the net sectional area of bolts and rivets, so the shear capacity of the two kinds of joints will be reduced to different degrees. Under the same corrosion condition, there is a gap in the connection between the nut and screw of the bolt, and the corrosive medium is more likely to erode it. Therefore, the shear capacity of the bolt connection decreases greatly after corrosion. Since the close engagement of the rivet rod and the collar of the pull riveting connection can reduce the influence of corrosion on it, the shear bearing capacity of the pull riveting connection after corrosion decreases to a lesser degree.

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相似文献/References:

[1]苗广威,陈志超,张 轶,等.光伏支架中螺栓连接和拉铆连接在轴向循环荷载作用下的松动行为对比试验研究[J].西安建筑科技大学学报(自然科学版),2022,54(04):579.[doi:10.15986/j.1006-7930.2022.04.013]
　MIAO Guangwei,CHEN Zhichao,ZHANG Yi,et al.Comparative experimental study on the loosening behavior of bolted and riveted connections under axial cyclic loads in photovoltaic supports[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2022,54(04):579.[doi:10.15986/j.1006-7930.2022.04.013]

备注/Memo

备注/Memo:
收稿日期:2022-06-10修改稿日期:2022-08-10
基金项目:陕西省自然科学基础研究计划面上项目(2022JM-308); 陕西省教育厅服务地方专项科研计划项目(21JC019)
第一作者:张广平(1964—),男,教授级高级工程师,本科,研究方向为输变电工程.E-mail:zhangguangping8570@163.com
更新日期/Last Update: 2022-08-28