摘要
提出了使用GFRP箍加固混凝土方柱的新方法,根据复合材料强度理论得到计算GFRP箍强度的公式σGFRP=n[σGAG+σR(1-AG)],并在试验的基础上总结了加固和连接工艺。通过对比2根素混凝土柱与12根GFRP箍加固柱的轴压力学和变形性能,发现GFRP箍加固混凝土方柱后可以提高柱的承载力10%～30%,应变大约提高2～4倍。
A new form of GFRP hoops to reinforced concrete columns is given,then the strength fomula of GFRP hoops is deduced on the basis of complex material theory,σ_(GFRP)=n[σ_GA_G+σ_R(1-A_G)],and several pieces of experiences in reinforcing and connecting are suggested.According to the test,we can conclude that carrying and distortion capacities of concrete columns wraped with GFRP hoops are increased evidently by 10%～30% and twice to four times respectively,when comparing 2 common concrete columns with 12 reinforced concrete columns on axial compression and deformalility.
出处
《混凝土》
CAS
CSCD
北大核心
2005年第3期89-91,共3页
Concrete
基金
教育部高等学校博士学科点专项科研基金资助项目20010141017
关键词
GFRP箍
轴压
加固
混凝土柱
GFRP hoops
axial compression
reinforced
concrete columns
