A novel FRP-dual-grade concrete-steel composite column system
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- 作者：Togay Ozbakkaloglu ; togay.ozbakkaloglu@adelaide.edu.au" class="auth_mail" title="E-mail the corresponding author
- 关键词：Concrete ; High-strength concrete (HSC) ; Dual-grade concrete ; Fiber reinforced polymer (FRP) ; Columns ; Confinement ; FRP tubes ; Steel tubes ; DSTCs
- 刊名：Thin-Walled Structures
- 出版年：2015
- 出版时间：November 2015
- 年：2015
- 卷：96
- 期：Complete
- 页码：295-306
- 全文大小：3772 K
文摘
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A new composite DSTC system that uses two different grades of concrete is developed.
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Performance of the system is investigated through tests of 28 circular and square column specimens.
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The new system exhibits superior compressive behavior compared to those of the conventional NSC and HSC DSTCs.
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Both circular and square composite columns exhibit extremely high axial load and deformation capacities.
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Improved performance is attributable to the system’s ability to maximize the benefits offered by NSC and HSC.