Abstract
The objective of this study is to investigate the utilization of high-elongation and low elastic putty as standard specification in a repair method using CFRP sheet for corroded steel members subject to axial force or normal stress under bending. If it is aimed to reduce stress level in a steel member such as the case when the putty is not used, necessary bond length of CFRP sheet is too long. Therefore, considering workability, a new stress reduction factor is introduced to conventional design. In order to decide the factor, parametric analysis is performed using a numerical calculation method proposed by the first author. After comprehending the influence of parameters, the factor in the repair design is determined. Furthermore, effective CFRP bonding repair method using high-elongation and low elastic putty or tapering is studied for axial member with steep cross-section loss.
