（天津城市建设学院土木工程学院,天津 300384）

[摘要]通过6根矩形截面钢筋混凝土梁静力试验，考察了不同玄武岩纤维布粘贴层数下，加固梁的承载能力及破坏模式，试验表明在钢筋混凝土梁受拉区粘贴玄武岩纤维布可有效提高既有损伤钢筋混凝土梁的抗弯性能。采用ANSYS软件对BFRP 布加固既有损伤钢筋混凝土梁进行数值模拟，并与试验结果进行对比，验证了应用ANSYS有限元软件对BFRP布加固既有损伤钢筋混凝土梁进行数值模拟的有效性。

[关键词] BFRP布；加固；既有损伤；数值模拟

中图分类号：TU375.1      文献标识码：A      文章编号：1002-848X(2013)S1-1420-05

*天津市自然基金重点项目(12JCZDJC28900)，天津市科技兴海项目(KJXH2012—19)。

作者简介：王海良，教授，硕导，Email:wanghailiang6601@126.com。

Experimental Research and Finite Element Analysis of Damage Concrete Beams Strengthened with BFRP Sheets

Wang Hailiang, Chang Wei,Yang Xinlei, Ren Quanchang, Dong Peng

( School of Civil Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, China)

Abstract: Experiment of six specimens of beams was conducted to study the effect of amounts of BFRP sheets on the ultimate flexural resistance and failure mode of the damage concrete beams strengthened with BFRP sheets. Results showed that the flexural resistance of damage concrete beams could be improved with the CFRP-sheet gluing the bottom of the reinforced concrete beams. Numerical simulation of the damage concrete beams strengthened with BFRP sheets was conducted by ANSYS, and the results of numerical simulation were compared with those of the test results.

Keywords: BFRP sheets; strengthening; damage; numerical simulation