桂林理工大学学报2013，Vol.33Issue(1)：65-68,4.DOI:10.3969/j.issn.1674-9057.2013.01.012
预应力CFRP板加固混凝土梁的抗裂性能
Crack Performance of Concrete Beams with Prestressed CFRP Plates
摘要
Abstract
With prestressed carbon fiber reinforced polymer(CFRP) plates,the strengthen reinforced concrete beams can increase cracking moments and maximum crack width.At present,there is no design provision for strengthened concrete beams with prestressed CFRP plates in current codes and ACI 440.4R-02 code.According to theoretical analysis,the cracking moment calculation methods of the prestressed CFRP plates for strengthen-reinforced concrete beams are presented.The maximum crack width calculation methods in current codes for concrete structure are modified with equivalent CFRP plates,bond behavior of CFRP plates and the bond area.Experimental studies on concrete beams strengthened with prestressed CFRP plates are carried out to verify the proposed formulas.Comparisons show that the calculated values agree well with the experimental results.关键词
预应力CFRP板/混凝土梁/抗裂度/最大裂缝宽度Key words
prestressed CFRP plates/ concrete beams/ cracking moments/ maximum crack width分类
建筑与水利引用本文复制引用
陈华,邓朗妮,康侃,张鹏..预应力CFRP板加固混凝土梁的抗裂性能[J].桂林理工大学学报,2013,33(1):65-68,4.基金项目
国家自然科学基金项目(50768002) （50768002）
广西自然科学基金重点项目(桂科自0832002Z) （桂科自0832002Z）
广西科技开发计划项目(桂科攻0992001-13) （桂科攻0992001-13）
