CFRP粘贴圆钢管柱构造措施研究  

Research on Construction Measures of CFRP Reinforced Cylindrical Steel Pipe Column

作　　者：完海鹰[1] 施文林 WAN Haiying;SHI Wenlin(College of Civil Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《安徽建筑大学学报》2021年第1期1-5,20,共6页Journal of Anhui Jianzhu University

基　　金：国家自然科学基金项目(51165020,51565029)。

摘　　要：CFRP包裹钢结构探究力学性能的试验已有不少,但关于使用CFRP探究构造措施的研究尚少,文章采用间隔粘贴的构造措施,以间隔距离30 mm、50 mm、80 mm的钢管为研究对象,采用试验探究、有限元验证的方式,探索使用CFRP间隔粘贴的构造措施对钢管构件破坏形态的影响,以及钢管构件的延性、承载力和控制截面的变化情况,得到使用碳纤维间隔粘贴柱长1/4~3/4范围的有效性及合理粘贴间距:碳纤维粘贴间隔建议取30~50mm之间,且在此区间内间隔距离越短,越能有效推迟碳布与钢柱剥离。There have been many studies on strengthening steel structures with CFRP,but few study has been conducted on exploring structural measures with CFRP.The construction measures of interval pasting are adopted in this paper.Taking the steel pipe with spacing of 30 mm,50 mm and 80 mm as the research object,with the experiment to explore and finite element modeling method to verify,this paper explores the influence of the structural measures of CFRP interval bonding on the failure mode of the component,as well as the ductility,bearing capacity and change of the control section of the steel pipe component.The validity and reasonable bonding interval of the columns with carbon fiber spacing in the range of 1/4〜3/4 are obtained:The interval of carbon fiber paste is recommended to be 30〜50mm,and in this interval,the shorter the interval is,the more effective it is to delay the peeling between carbon cloth and steel column.

关 键 词：碳纤维增强复合材料 间隔粘贴 构造措施 有效性及合理粘贴间距 

分 类 号：TU391[建筑科学—结构工程]