Size Effect of Glass Fiber Reinforced Plastic Confined Concrete Column
Journal Title: 河南科技大学学报（自然科学版） - Year 2017, Vol 38, Issue 3
Abstract
Three glass fiber reinforced plastic( GFRP) confined reinforced concrete columns and three unconfined reinforced concrete columns were tested and the finite element analysis was carried out on 15 specimens. The influence of different volume allocation rates on the mechanical properties of GFRP-confined reinforced concrete columns under axial compression was investigated. The results show that with the increasing of the size,the ultimate compressive strength and the ultimate strain become smaller. At the same time,theeffect of GFRP confined large size specimens is more remarkable. However,with the increase of the GFRP sheet volume allocation rate,the decreasing of ultimate compressive strength of large size specimen is smaller than that of small size,and the increasing of the volume allocation rate improves the effect of the size. When volume allocation rate reaches 0. 139,the increasing of ultimate compressive strength is weakened. For the similar specimen,it is more economical and practical to choose 0. 104 for GFRP sheet.
Authors and Affiliations
Yang YU, Yong YANG, Yunfeng ZHANG, Sitong CHEN
Keywords
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