PERFORMANCE OF CFRP-STRENGHTENED CONCRETE FILLED STEEL TUBES UNDER AXIAL COMPRESSION
This paper presents an experimental study of concrete filled steel tubular (CFST) stub columns strengthened with carbon fiber reinforced polymer (CFRP) composites subjected to axial compression. Twenty specimens were tested to investigate the effects of steel tube shape, number of CFRP layers and steel wall thickness on the performance of the composite columns. The test results indicated that the CFRP jackets enhanced the load-bearing capacity for the circular columns effectively, whereas the enhancement was less significant for square columns. A simple model is proposed in this paper to calculate the ultimate strength of square CFST stub columns wrapped with CFRP. The predicted results are generally in good agreement with the experimental results.
Concrete filled steel tubes (CFST) Fiber reinforced polymers (FRP) Hollow section Stub column Strengthening
Zhi-Bin Wang Zhong Tao Lin-Hai Han
College of Civil Engineering, Fuzhou University, Fuzhou, Fujian Province, 350108,P.R. China Department of Civil Engineering, Tsinghua University, Beijing, 100084, P.R. China
国际会议
第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)
长沙
英文
689-694
2008-10-19（万方平台首次上网日期，不代表论文的发表时间）