Experimental Research on Seismic Properties of Rectangular FRP-Concrete-Steel Double-Skin Tubular Columns Under Quasi-Static Load

WANG Shanzhang; ZHANG Bing; ZHANG Qianbiao; ZHENG Huanze; GAO Yuhang

doi:10.13204/j.gyjzG22031713

Volume 52 Issue 12

Dec. 2022

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2022 > 52(12): 136-141,178

WANG Shanzhang, ZHANG Bing, ZHANG Qianbiao, ZHENG Huanze, GAO Yuhang. Experimental Research on Seismic Properties of Rectangular FRP-Concrete-Steel Double-Skin Tubular Columns Under Quasi-Static Load[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(12): 136-141,178. doi: 10.13204/j.gyjzG22031713

Citation:

WANG Shanzhang, ZHANG Bing, ZHANG Qianbiao, ZHENG Huanze, GAO Yuhang. Experimental Research on Seismic Properties of Rectangular FRP-Concrete-Steel Double-Skin Tubular Columns Under Quasi-Static Load[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(12): 136-141,178. doi: 10.13204/j.gyjzG22031713

Citation:

WANG Shanzhang, ZHANG Bing, ZHANG Qianbiao, ZHENG Huanze, GAO Yuhang. Experimental Research on Seismic Properties of Rectangular FRP-Concrete-Steel Double-Skin Tubular Columns Under Quasi-Static Load[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(12): 136-141,178. doi: 10.13204/j.gyjzG22031713

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Experimental Research on Seismic Properties of Rectangular FRP-Concrete-Steel Double-Skin Tubular Columns Under Quasi-Static Load

doi: 10.13204/j.gyjzG22031713

1. College of Landscape Architecture, Northeast Forestry University, Harbin 150040, China;
2. College of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China;
3. College of Civil Engineering, Nanjing Tech University, Nanjing 211816, China

Received Date: 2022-03-17
Available Online: 2023-03-22

Abstract

Abstract

FRP-concrete-steel double-skin tubular columns (DSTCs), which consist of an outer FRP tube, an inner steel tube and the concrete infilled between the two tubes, have excellent seismic performance and anti-corrosion performance. Existing studies on DSTCs focused on specimens with a circular cross-section or a square cross-section, while specimens with a rectangular cross-section are rarely investigated. According to engineering needs, the rectangular aspect ratio could be designed optimally for rectangular DSTCs to provide different bending stiffness around two axes of symmetry. 3 rectangular DSTCs were tested under constant axial compression and lateral cyclic loading to assess their seismic performance, and the parameters included the FRP thickness and the lateral loading direction (i.e., bending around the strong axis or the weak axis of the rectangular cross-section). Rectangular DSTCs in the present study had a length of 300 mm and a width of 200 mm for the cross-section, and a total height of 2 150 mm. The results indicated that the specimen with a thicker FRP tube had a larger bearing capacity;the specimen loaded around its strong axis had better bearing capacity and ductile than the corresponding specimen loaded around its weak axis; the predictions for the experimental hysteretic curves by numerical model based on OpenSees were slightly conservative.
- FRP-confined concrete,
- rectangular cross-section,
- composite column,
- seismic properties,
- hysteretic curve

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References(25)

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