结构工程师2012，Vol.28Issue(3)：141-146,6.
粘贴竹片加固混凝土梁的试验研究
Strengthening RC Beams with Externally Bonded Bamboo Strips
摘要
Abstract
Bamboo is a renewable, low-carbon and environmentally-friendly natural material with high tensile strength and good stability. Many RC beams need to be strengthened due to either accumulative damage or an increase of loading. This paper presents an experimental study in which 5 RC beams were tested, including two unstrengthened RC beams used to compare, three RC beams strengthened with one, two and three layers of 5mm bamboo strips, respectively. The test results show that the ultimate flexural strength of RC beams was increased by 22% ~25% with an average of 24% after strengthened by a few externally bonded small bamboo strips. The flexural stiffness of the strengthened beams was also significantly increased by 33% ~49% with an average of 39%. The flexural crack width of the strengthened RC beams was smaller than that of the control beams at the same loading levels. The tests confirm that strengthening RC beams with bamboo strips is a promising effective and low-carbon technique worth further research.关键词
竹片/加固/混凝土梁/受弯承载力Key words
bamboostrip/strengthening/RC beam/bending strength引用本文复制引用
朱雷,许清风,陈建飞..粘贴竹片加固混凝土梁的试验研究[J].结构工程师,2012,28(3):141-146,6.基金项目
国家“十二五”科技支撑计划(2012BAJ07B04) （2012BAJ07B04）
