Studies on Flexural Performance of Wood Member Retrofitted with CFRP

• Main Authors: Hui-Chaun Chou, 周惠娟
• Other Authors: Ming-Jer Tsai
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/89948115400905893530

碩士 === 國立臺灣大學 === 森林學研究所 === 91 === The purpose of the study was to investigate the interface adhesive effect between CFRP and wood, and it’s flexural performance. It can be referred to use to reinforce the wooden member of ancient remains, historic buildings, and wooden structures. The coating amount of primer and epoxy resin to be applied between CFRP and wood (Chamaecyparis formosensis, Cryptomeria japonica, Taiwania cryptomerioides, Tsuga chinensis, and Zelkova serrata) is 0.15 kg/m2, 0.20 kg/m2, 0.25 kg/m2, and 0.30 kg/m2. Soaked delamination test and boiled delamination test are to be applied between CFRP and wood, and the bonding effect is to be tested. Then employ pull out test to select suitable for coating amount, and use to the materials of static bending test. Four groups wood of static bending test are (A) no adhere CFRP (B) to adhere CFRP on the compression side of wood (C) to adhere CFRP on the tension side of wood (D) to adhere CFRP on the tension side and compression side of wood. Compare with difference between the four teams. The experimental results are summarized as follows: The coating amount of primer and epoxy resin applied to Chamaecyparis formosensis, Cryptomeria japonica, Taiwania cryptomerioides, Tsuga chinensis, and Zelkova serrata are 0.15 kg/m2, 0.20 kg/m2, 0.25 kg/m2, 0.20 kg/m2, and 0.20 kg/m2. Then applied the coating amount to the materials of static bending test and to compare with the materials of no adhesive CFRP. Chamaecyparis formosensis, Cryptomeria japonica, Taiwania cryptomerioides, Tsuga chinensis, and Zelkova serrata adhesive CFRP on the compression side, the average of MOR are increasing 9.86％, 16.50％, 13.18％, 9.45％ and 15.12％ respectively, and the average of MOE are increasing 19.07％, 33.33％, 30.18％, 37.82％ and 31.68％ respectively; adhesive CFRP on the tension side, the average of MOR are increasing 43.37％, 35.14％, 34.19％, 41.24％ and 41.16％ respectively, and the average of MOE are increasing 25.43％, 29.74％, 24.31％, 38.29％ and 31.28％ respectively; adhesive CFRP on the tension side and compression side, the average of MOR are increasing 39.83％, 40.86％, 47.53％, 44.66％ and 47.19％ respectively, and the average of MOE are increasing 48.29％, 72.55％, 84.41％, 81.03％ and 48.53％.