A Study on Pushover Test and Numerical Analysis of GFRP Frame with FRP Joints

• Main Authors: Bo-Shiang Wang, 王柏翔
• Other Authors: 李有豐
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/qkcufh

碩士 === 國立臺北科技大學 === 土木與防災研究所 === 101 === This study uses light weight, weather resistant and high strength Glass Fiber Reinforced Plastic (GFRP) composites to produce a framework the behavior of which was analyzed in a pushover experiment and by using a numerical analysis software. In the specimental plan, double-web FRP I-beams are used for the beams and columns of the frame but the joint are made from an GFRP deck cut into the desired form, bonded together and wrapped with carbon fiber sheet. Three types of frame specimens with braces in compression, tension and no bracing were used for each joint type – chemically bonded joint (using epoxy resin) or a hybrid joint using GFRP bolts in addition to epoxy resin. When making the specimens the double-web I-beam is given a 45 ° cut at the ends to let joint fit in the frame. The joint is then bonded to the frame by chemical bonding (using epoxy resin coating) or by hybrid bonding (using not only resin coating but also adding GFRP bolts in the beam-column joint). After the specimens are made, a pushover experiment is done to investigate the mechanical behavior and failure mode of the frame. The experimental results showed that the mechanical behavior of the hybrid joint is better than the chemically bonded joint and that tension bracing has a better performance. This study also uses numerical analysis software SAP2000 for the pushover simulation analysis of the frames and it was learned that the ultimate stength and force-displacement curce of the analytical results were similar to that of the experimental ones.