彎曲與扭轉作用下GFRP結構桿件之變形與破壞

Deformation and Failure of GFRP Structural Members under Bending and Torsional Loads

陳世凱(Shih-Kai Chen) ； 黃進國(Chin-Kuo Huang) ； 王仲宇(Chung-Yue Wang) ； 許協隆(Hsieh-Lung Hsu) ； 廖啟明(Gi-Ming Liao)

《中國土木水利工程學刊》 23卷2期 (2011/06) Pp. 163-174

https://doi.org/10.6652/JoCICHE.201106_23(2).0004

摘要

為評估GFRP（Glass Fiber Reinforced Plastic，玻璃纖維強化塑膠）構件所組成之特殊用途結構於地震和風力作用下的行為，本研究在實驗室內規劃設計了此一特殊GFRP構件和連接器之一系列測試，實驗結果再運用材料力學理論反算GFRP構件與連接器之基本力學參數，如彎曲剛度、扭轉剛度、彈性模數和連結器於不同荷重下的載重－變形關係。此些參數之合理性則運用有限元素分析軟體之大變形分析功能與實驗值比較驗證。這些參數可作為後續建構此類GFRP材料與連接器所組成結構的數值分析模型之用。

關鍵字

纖維強化塑膠 ； 反算 ； 大變形 ； 彎曲剛度 ； 扭轉 ； 數值模擬

並列摘要

In order to evaluate behaviors of special protection structures constructed by Glass Fiber Reinforced Plastic (GFRP) components under excitations as earthquake and wind, laboratory tests of GFRP members and connectors were conducted to obtain some performance data. Test results were further used to backculate the fundamental characters, as bending and torsion rigidities, elastic modulus and load-deformation models of the connector at various loading types, of the GFRP member and connectors. The accuracy of these calibrated parameters was verified by applying the function of a finite element code to predict the deformation of structure members at various loading conditions and compares with the experimental results. These calibrated parameters will be used in the construction of numerical analysis model of structures composed of these types of GFRP members and connectors.

並列關鍵字

FRP ； back calculation ； large deflection ； bending rigidity ； torsion ； numerical simulation