建筑结构学报2011，Vol.32Issue(4)：95-100,6.
侧贴预应力碳纤维板加固混凝土梁受弯承载力计算方法研究
Flexural capacity analysis for strengthened concrete beams side-bonded with prestressed CFRP plates
摘要
Abstract
To obtain the calculation formulae for predicting the normal section flexural capacity of the strengthened concrete beams side-bonded with prestressed CFRP plates, two possible failure modes of the strengthened beams (concrete crushing and CFRP plate rupture) and the relevant discrimination methods were proposed in this paper.Considering the reduction of CFRP plate area because of side bonding, the calculation methods for flexural capacity of the two failure modes were presented based on analysis of the ultimate state of sections.To verify the proposed formulae, experimental studies on four concrete beams strengthened with prestressed CFRP plates on its vertical sides were carried out using the self-developed tensioning and anchoring equipments for the CFRP plate.Experiments show that the failure modes are consistent with the calculated results.The calculated values of flexural capacity agree well with the experimental results.A practical design method for the strengthened concrete beams side-bonded with prestressed CFRP plates was proposed, which can provide a reference for engineering application of strengthening design, especially applicable for the structure when there are some obstructions underneath.关键词
混凝土梁/侧贴碳纤维板/加固/预应力/静载试验/受弯承载力Key words
concrete beam/ side-bonded with carbon fiber reinforced polymer plate (CFRP plate)/ strengthen/ prestress/ static test/ flexural capacity分类
建筑与水利引用本文复制引用
邓朗妮,康侃,燕柳斌,张鹏,杨帆..侧贴预应力碳纤维板加固混凝土梁受弯承载力计算方法研究[J].建筑结构学报,2011,32(4):95-100,6.基金项目
国家自然科学基金项目(50768002),广西自然科学基金重点项目(桂科自0832002Z),广西科学研究与技术开发项目(桂科攻0992001-13),广西自然科学基金项目(2010GXNSFB013006). （50768002）
