期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：108
期号：2
页码：022005
DOI：10.1088/1755-1315/108/2/022005
语种：English
出版社：IOP Publishing
摘要：The paper is to quantify and assess the roughness of 108 concrete samples with 6 kinds of interface roughness to investigate the influence of surface roughness on the bond property of FRP-concrete interface. And in order to solve the problem of so many parameters in interfacial stress-slip constitutive relation between FRP and concrete that hard to practise for engineers, so adopting shear test to establish two parameters (fc0, fi) constitutive relation which are more suitable for engineers' construction design. Results shows that the compressive strength (fc0) and interfacial roughness (fi) are the two keys who influence the interfacial bond strength; The closed-form solution of τm and sf can be solved by the two factors fc0, fi, this method supplies a new algorithm for the interface calculation, due to the theoretical value is less than the measured values, so there is a certain safety stock to construction.
