预应力FRP加固木梁的初始预应力值研究  

Study on the Maximum Initial Prestression of Prestressed FRP Reinforcement in Wood Beams

作　　者：陈佳德[1] 冯尚德[1] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《兰州交通大学学报》2013年第1期49-52,共4页Journal of Lanzhou Jiaotong University

摘　　要：在土木工程结构中,增强的先进木质结构能够使现代木质结构发挥更大的作用.本文探讨了一种新的预应力FRP片材外贴木梁的加固技术.推导出了初始预应力公式,并通过试验实测了预应力FRP加固木梁的初始预应力,理论分析与试验结果吻合较好.In civil engineering structures,advanced forms of reinforced wood constructions can enable contemporary wood structures to play an even greater role. In this work, the study establishes a novel tech nique for reinforcing wood members involving external bonding of pretensioned FRP sheets. In the analyti cal model, the formula of the maximum initial prestression is deduced and verified with tests on carbon/ep oxyprestressed wood beams. The results agree well.

关 键 词：预应力 FRP木梁 加固 最大初始预应力 

分 类 号：TU366.2[建筑科学—结构工程]