河北科技大学学报2012，Vol.33Issue(2)：175-178,4.
玄武岩纤维约束预压混凝土的应力-应变模型
Stress-strain model for BFRP-confined preloaded concrete
摘要
Abstract
For the reinforcement of structural member on site,the member can not be unloaded. So this paper studies BFRP constraint preloaded square concrete column under uniaxial load. The stress-strain curve of the specimen is deeply researched into. It is found that the curve is close to the parabola. Based on previous researches,the model of parabola plus linear is determined. Through the processing of test data,the model of peak stress and strain of the parabola vertex is obtained. Moreover,with the theoretical derivation,the complete stress-strain model is obtained. The preload taken into account,the model is closer to actual engineering compared with other models.关键词
BFRP/峰值应力/峰值应变/应力-应变模型/预压Key words
BFRP/peak stress/peak strain/stress-strain model/preload分类
建筑与水利引用本文复制引用
李素娟,马卫华..玄武岩纤维约束预压混凝土的应力-应变模型[J].河北科技大学学报,2012,33(2):175-178,4.基金项目
唐山市科技局项目(08450204B) （08450204B）
