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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2013, Vol. 14 Issue (11): 778-788    DOI: 10.1631/jzus.A1300206
Civil Engineering     
Mechanical behavior of concrete filled glass fiber reinforced polymer-steel tube under cyclic loading
Chun-yang Zhu, Ying-hua Zhao, Shuang Gao, Xiao-fei Li
Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian 116026, China
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Abstract  The mechanical behavior of concrete-filled glass fiber reinforced polymer (GFRP)-steel tube structures under combined seismic loading is investigated in this study. Four same-sized specimens with different GFRP layout modes were tested by a quasi-static test system. Finite element analysis (FEA) was also undertaken and the results were presented. Results of the numerical simulation compared well with those from experimental tests. Parametric analysis was conducted by using the FE models to evaluate the effects of GFRP thickness, axial compression rate, and cross sectional steel ratio. The experimental and numerical results show that the technique of GFRP strengthening is effective in improving the seismic performance of traditional concrete-filled steel tubes, with variations related to different GFRP layout modes.

Key words： Concrete-filled glass fiber reinforced polymer (GFRP)-steel tube      Seismic      Energy dissipation      Stiffness degradation     
Received: 15 June 2013      Published: 04 November 2013
CLC:  TU398+.9  
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Chun-yang Zhu
Xiao-fei Li
Ying-hua Zhao
Shuang Gao
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Chun-yang Zhu, Ying-hua Zhao, Shuang Gao, Xiao-fei Li. Mechanical behavior of concrete filled glass fiber reinforced polymer-steel tube under cyclic loading. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2013, 14(11): 778-788.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A1300206     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2013/V14/I11/778

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