CFRP-钢管RPC受压试验研究  

Compression test of carbon fiber cloth steel tube with reactive powder concrete

作　　者：谭淑珍 焦楚杰[1] 权长青 简超 TAN Shuzhen;JIAO Chujie;QUAN Changqing;JIAN Chao(School of Civil Engineering,Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广州大学土木工程学院,广东广州510006

出　　处：《混凝土》2020年第9期7-9,14,共4页Concrete

基　　金：国家自然科学基金项目(51778158,51478128);广东省水利科技创新重点项目(2017-32);住房和城乡建设部科研开发项目(2010-K3-27,2010-K4-18);广州大学全日制研究生“基础创新”项目(2017GDJC-M41);广州市重点实验室项目(201509010016);广州大学重点产学研项目(2018-14)。

摘　　要：碳纤维布-钢管活性粉末混凝土是在钢管外壁粘贴碳纤维布,钢管内部灌入活性粉末混凝土形成的复合试件。本课题组加工了36组碳纤维布-钢管活性粉末混凝土与3组钢管活性粉末混凝土试件,每组3根试件,共117根试件用于轴压试验。试验表明,与传统钢管活性粉末混凝土相比,碳纤维布-钢管活性粉末混凝土试件的抗压能力和整体刚度得到提高,试件的极限承载力随着活性粉末混凝土强度提高、钢管壁厚增加和碳纤维布层数增多而增大。Carbon fiber cloth steel pipe active powder concrete(CFRP steel pipe RPC)is a composite structure composed of carbon fiber cloth pasted on the outer wall of the steel pipe and activated powder concrete(RPC)poured into the steel pipe.This research group processed 36 groups of CFRP steel tube RPC and 3 groups of steel tube RPC specimens,with 3 specimens in each group.A total of 117 specimens were used for axial compression test.The test results showed that compared with traditional steel tube RPC,the compressive strength and overall stiffness of CFRP steel tube RPC specimens were improved,and the ultimate bearing capacity of specimens increased with the improvement of RPC strength,the increase of steel tube wall thickness and the increase of CFRP layers.

关 键 词：碳纤维布-钢管活性粉末混凝土 轴压试验 承载力 

分 类 号：TU528.01[建筑科学—建筑技术科学]