玻璃纖維增強膠合木的力學性能試驗研究*
張仲鳳，周先雁
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張仲鳳，周先雁（中南林業(yè)科技大學家具與藝術學院，長沙 410004)［摘要］研究玻璃纖維布(GFRP)增強膠合木質工程材料的基本力學性能。通過試驗測試，比較GFRP增強膠合木與普通膠合木的力學性能差異，考察GFRP含量及布置方式對膠合木力學性能的定量影響。結果表明：增加GFRP含量能夠有效提高膠合木的靜曲強度，合理的GFRP柵格布置能夠提高膠合木的膠合剝離破壞強度，GFRP含量及布置方式對膠合木的彈性模量影響很小。最后，建立了考慮GFRP含量及布置方式影響的GFRP增強膠合木的靜曲強度數(shù)學模型。［關鍵詞］膠合木；玻璃纖維布；力學性能；試驗中圖分類號：TU531-2文獻標識碼：A文章編號：1002-848X(2012)07-0139-03Test on the mechanic performance of glue laminated lumber reinforced with GFRP for structural materialsZhang Zhongfeng, Zhou Xianyan(School of Furniture and Art Design, Central South University of Forestry and Technology, Changsha 410004, China)Abstract: The basic mechanic performance of glue laminated lumber (GLL) reinforced with glass fiber reinforced plastic (GFRP) for structural materials was studied. The differences of mechanic performance of the GLL reinforced with GFRP and the common GLL were compared by the test, and the quantitative influence of reinforcement ratio and arrangement pattern of GFRP on the mechanic performance was investigated. The test results show that the static bending strength of GLL increases with the increasing of GFRP reinforcement ratio, and the reasonable arrangement pattern of GFRP can improve the internal bonding strength of GLL. The influence of reinforcement ratio and arrangement pattern of GFRP on the elastic modulus is relatively small. Finally, a mathematical model of static bending strength for GLL reinforced with GFRP is proposed, which can consider the influence of reinforcement ratio and arrangement pattern of GFRP.Keywords: glue laminated lumber; glass fiber reinforced plastic; mechanic performance; test*國家引進國際先進林業(yè)科學技術項目（2012-4-17），國家自然科學基金(31070497)，湖南省教育廳科學研究重點項目（10A131），教育部科學技術研究重點項目（211128）。作者簡介: 張仲鳳，博士研究生，副教授, Email: csfuzzf@163.com參考文獻［1］樊承謀 木結構在我國的發(fā)展前景［J］ 建筑技術, 2003(4): 297-299.［2］ZHANG Z F, ZHOU X Y, LI J H, et al. Study on mechanics of laminated veneer lumber for wood bridge based on China Southern Plantation［J］. Key Engineering Materials, 2011, 467-469: 1711-1715.［3］ZHOU X Y, ZHANG Z F, LI J H, et al. Study on mechanics of GFRP composite wood for timberwork on China Southern Plantation ［J］. Advanced Materials Research, 2011, 168-170: 578-581.
