To study the axial compression performance of high strength concrete column confined by glass fiber reinforced polymer,six specimens with different length to slenderness ratios were designed and tested under axial compression,and the failure process and failure form,bearing capacity,displacement,load-displacement curve,skeleton curve and load-strain curve were analyzed.The results show that the axial compression load bearing performance of the high strength concrete column confined by glass fiber reinforced polymer is excellent,and the axial compression load capacity of the specimen increases significantly with the decrease of the length to slenderness ratio.The failure mode of the combined structure in the late stage of loading is the circumferential damage of the glass fiber reinforced polymer tube,and the internal concrete is crushed.The axial compression load capacity of the glass fiber reinforced polymer hollow tube is relatively low,and the brittle characteristic is obvious when the damage occurs.With the decrease of the length to slenderness ratio,the load bearing capacity and stiffness of the high strength concrete column confined by glass fiber reinforced polymer gradually increase,and the length to slenderness ratio has significant influence on the load bearing capacity of the structure.The results of the study have some significance for the theoretical research and engineering application of high strength concrete column confined by glass fiber reinforced polymer.
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