摘要
分析研究了粘贴高强复合纤维加固受弯构件的受力过程,探讨了加固后钢筋混凝土梁正截面的破坏特征、受力特点以及影响因素,并提出正截面强度计算公式。试验结果表明:钢筋的配筋率与复合纤维的粘贴量对加固效果影响较大;实施桥梁构件加固时,要考虑加固前混凝土和钢筋已存的应力应变;复合玻璃纤维能有效地抑制裂缝的开展与延伸,为今后研究提供了参考。
The behavior of flexural members strengthened with advanced glass-fibre composites was studied. By discussing the load-deformation process, flexural failure characters and the influencing factors, a method for the determination of the ultimate strength of such members was put forward, The testing results indicated that the reinforcement ratio and the affixing amount of advanced glass-fibre composites had great influence on the strengthening effects, The existing stress-strain should be considered before strengthening the flexural members. The glare-fibre composites could efficiently prohibit the cracks from extension and elongation, which will provide reference for the further research.
出处
《森林工程》
2006年第1期49-51,共3页
Forest Engineering
基金
江苏省苏州市社会发展项目资助(ss 0012)
关键词
高强复合纤维
受弯构件
加固
承载能力
advanced glass-fibre composites
flexural members
strengthening
load bearing capacity
