EXPERIMENTAL STUDY ON DUCTILITY OF RC MEMBERS WRAPPED BY STEEL AND HIGH STRENGTH FIBER REINFORCED MORTAR

Abstract

 The authors developed a new retrofitting method aimed at improving the productivity of seismic retrofitting works. The developed method is seismic retrofitting method using divided precast panel, high strength fiber reinforced mortar and steel plate. The mortar is poured into the gap between the objective column and precast panels around it assembled with steel plate and bolt. There are few cases using high strength fiber reinforced mortar for seismic retrofitting, and its ductility is not clear. Therefore, in this paper, in order to clarify the ductility of the RC members retrofitting by this method, amount of steel plate, the high strength fiber reinforced mortar and the sectional dimensions were set as variables, and cyclic loading tests was conducted. As a result, the influence of high strength fiber reinforced mortar on ductility was clarified and an calculation formula was reconstructed.