全纤维增强复材筋连接器拉伸性能试验研究
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摘要
为解决复材筋的对接问题,研制出满足工程应用的复材筋全纤维增强复材(FRP)连接器,设计了两种截面形式的全FRP材质复材筋连接器,制作了两组共计10个复材筋对接连接的拉伸性能测试试件,对其抗拉伸性能进行了试验研究。试验结果可知:两种复材筋连接器接头均能可靠对复合材料筋进行连接。建立了两种截面形式复材筋连接器的有限元模型,对其连接不同直径纤维筋时的受力性能进行了分析,并与试验结果进行了比较和分析,得到了两种可以用于工程实践的复材筋连接接头。
The paper focused on the butt joint technology research of FRP bars and the application of FRP bar connectors,two kinds of FRP bar connectors with different sections were designed. Two groups,a total of 10 FRP bars butt-jointed specimens were manufactured to test the tensile properties,which indicated that both two FRP bar connectors could connect FRP bars safely. The finite element models of the two kinds of FRB bar connectors were established. The mechanical properties of the connectors connecting different FRP bars were analyzed,and the analysis results were compared with the test results. Two kinds of FRB bar connecters that can be used in engineering practice have been obtained,which have practical guiding significance for engineering practice.
The paper focused on the butt joint technology research of FRP bars and the application of FRP bar connectors,two kinds of FRP bar connectors with different sections were designed. Two groups,a total of 10 FRP bars butt-jointed specimens were manufactured to test the tensile properties,which indicated that both two FRP bar connectors could connect FRP bars safely. The finite element models of the two kinds of FRB bar connectors were established. The mechanical properties of the connectors connecting different FRP bars were analyzed,and the analysis results were compared with the test results. Two kinds of FRB bar connecters that can be used in engineering practice have been obtained,which have practical guiding significance for engineering practice.
引文
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[6]张言,刘泽帆,叶峰.新型FRP灌浆套筒预制拼装技术研究[J].四川建筑,2015,35(6):176-179.
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[2]范海丰,刘玉擎,张杰.FRP筋连接与搭接性能研究综述[J].工业建筑,2009,39(增刊):88-91.
[3]怀臣子.基于FRP材料的非金属锚具系统理论及应用研究[D].武汉:华中科技大学,2011.
[4]涂永明,吕志涛,张继文,等.四种预应力FRP筋材锚固体系的试验研究[J].工业建筑,2008,38(10):38-41.
[5]方志,梁栋,蒋田勇.不同黏结介质中CFRP筋锚固性能的试验研究[J].土木工程学报,2006,39(6):47-51.
[6]张言,刘泽帆,叶峰.新型FRP灌浆套筒预制拼装技术研究[J].四川建筑,2015,35(6):176-179.
[7]赵启林,高一峰,李飞.复合材料预紧力齿连接技术研究现状与进展[J].玻璃钢/复合材料,2014(12):52-55.
[8]杨嗣信,建筑业重点推广新技术应用手册[M].北京:中国建筑工业出版社,2003:686-693.
[9]中华人民共和国国家质量监督检验检疫总局.结构工程用纤维增强复合材料筋:GB/T 26743—2011[S].北京:中国标准出版社,2011.
[10]中华人民共和国住房和城乡建设部.钢筋机械连接技术规程:JGJ 107—2016[S].北京:中国建筑工业出版社,2016.