CFRP板嵌入加固钢筋混凝土梁延性计算方法  

Calculation on ductility of RC beams with near-surface mounted CFRP plate reinforcement

作　　者：邓朗妮[1] 马晋超[1] 马骏[1] 罗日生 黄晓霞 DENG Lang-ni;MA Jin-chao;MA Jun;LUO Ri-sheng;HUANG Xiao-xia(Department of Civil Engineering and Architecture,Guangxi University of Science and Technology,Liuzhou 545006,China)

机构地区：[1]广西科技大学土木建筑工程学院,广西柳州545006

出　　处：《桂林理工大学学报》2018年第3期469-472,共4页Journal of Guilin University of Technology

基　　金：国家自然科学基金项目(51568008);广西自然科学基金青年基金项目(2013GXNSFBA019261);广西高校中青年教师基础能力提升项目(KY2016YB248)

摘　　要：为了使CFRP板加固后的构件在提高承载力的同时,也能保证构件在破坏前具有足够的延性,在对5根CFRP板加固钢筋混凝土梁的抗弯延性试验的基础上,通过平截面假定以及材料应力应变本构关系进行推导,提出根据确定的目标延性系数反算CFRP板加固面积的计算方法。计算结果与试验结果比较证明计算方法具有良好的适用性。In order to improve the flexural capacity of RC beams strengthened with CFRP plate,and to ensure enough ductility,based on the experiment of 4 reinforced concrete beams strengthened with CFRP plates,an analytical method is derived for determining the allowable plate area to achieve a targeted value of ductility using the plan section assumption and material constitutive relation.Results of calculation are compared with the experimental data.Result shows that the calculation formulas features good applicability,providing a reference for engineering application of strengthening design.

关 键 词：CFRP板 混凝土梁 嵌入式加固 曲率延性 

分 类 号：TU375.1[建筑科学—结构工程]