张仲凤，周先雁

  （中南林业科技大学家具与艺术学院，长沙 410004)

 

［摘要］研究玻璃纤维布(GFRP)增强胶合木质工程材料的基本力学性能。通过试验测试，比较GFRP增强胶合木与普通胶合木的力学性能差异，考察GFRP含量及布置方式对胶合木力学性能的定量影响。结果表明：增加GFRP含量能够有效提高胶合木的静曲强度，合理的GFRP栅格布置能够提高胶合木的胶合剥离破坏强度，GFRP含量及布置方式对胶合木的弹性模量影响很小。最后，建立了考虑GFRP含量及布置方式影响的GFRP增强胶合木的静曲强度数学模型。

［关键词］胶合木；玻璃纤维布；力学性能；试验

中图分类号：TU531-2文献标识码：A文章编号：1002-848X(2012)07-0139-03

 

Zhang 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

*国家引进国际先进林业科学技术项目（2012-4-17），国家自然科学基金(31070497)，湖南省教育厅科学研究重点项目（10A131），教育部科学技术研究重点项目（211128）。

作者简介: 张仲凤，博士研究生，副教授, Email: csfuzzf@163.com

 

［1］樊承谋 木结构在我国的发展前景［J］ 建筑技术, 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.