Experimental research on seismic performance of storey-adding frame structures |
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| Authors: | Hongyan?Ding Yaohua?Guo Yuguo?Liang Email author" target="_blank">Puyang?ZhangEmail author |
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| Institution: | 1.State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin,China;2.School of Civil Engineering,Tianjin University,Tianjin,China;3.Key Laboratory of Coast Civil Structure Safety of Ministry of Education,Tianjin University,Tianjin,China;4.Hebei Academy of Building Research,Shijiazhuang,China |
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| Abstract: | The seismic behaviors of an integral concreting frame, a light steel storey-adding frame and a storey-adding frame strengthened with carbon fiber reinforced polymer(CFRP)were investigated under low-cycle and repeated load(scale 1:3). The failure characteristics, hysteretic behavior, rigidity degeneracy, deflection ductility and energy-dissipation capacity of the three specimens were compared. The test results reveal that chemically-bonded rebar technique can meet the requirements of storey-adding engineering. The carrying capacity, the deflection ductility, the energy-dissipating capacity and seismic performance of the light steel storey-adding frame are higher than those of the integral concreting frame, and they are the highest in the storey-adding frame strengthened with CFRP. |
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