玻璃钢/复合材料Issue(3)：19-25,7.
反复荷载下CFRP-PCPs复合筋混凝土梁刚度退化的过程分析
ANALYZING THE STIFFNESS DEGRADATION OF CFRP-PCPS COMPOSITE REINFORCED CONCRETE BEAM UNDER LOW REVERSED CYCLIC LOADING
摘要
Abstract
In this paper,the low cyclic pseudo static test of 6 concrete beams is carried out.By using an ordinary reinforced concrete beam and a common prestressed concrete beam with CFRP reinforcement as the reference,the stiffness and damage degradation of 4 CFRP-PCPs composite beams with different tension control stresses and different sectional sizes are studied.The experimental results show that the CFRP-PCPs composite bars can effectively restrain the stiffness degradation of the structures.Based on the experimental results,the stiffness degradation of the specimens at the crack point,the yield point and the limit point are analyzed.Stiffness degradation calculation method of characteristic points of each specimen is presented.The calculated results are in good agreement with the experimental results.It will provide some reference value for predicting the development of deformation during the use of the structure.关键词
CFRP-PCPs/刚度退化/低周反复荷载/混凝土梁Key words
CFRP-PCPs/stiffness degradation/low reversed cyclic loading/concrete beam分类
通用工业技术引用本文复制引用
邓宇,甘德丽,张鹏,杨希涛..反复荷载下CFRP-PCPs复合筋混凝土梁刚度退化的过程分析[J].玻璃钢/复合材料,2018,(3):19-25,7.基金项目
国家自然科学基金资助项目(51768008) （51768008）
中国博士后科学基金项目(2017M613273XB) （2017M613273XB）
广西自然科学基金项目(2015GXNSFAA139263) （2015GXNSFAA139263）
