BFRP布抗震加固砌体墙试验研究

hrough the aseismic experiments of five high aspect ratio masonry wall specimens under the pseudo-static experiment, the aseismic behaviours of the unreinforced masonry walls Basalt Fibre Reinforced Polymer (BFRP) were investigated. The aseismic strengthening effects of different ratio of height，strengthening mode，material and secondary loading specimens were compared in aspect of the failure modes, shear capacity, hysteresis response, ability of energy dissipation and deterioration of rigidity. The experimental results indicate that the ultimate capacity, ductility factor and energy dissipation coefficient of the specimen strengthened with BFRP are improved markedly；There are no obvious differences of the aseismic strengthening effects between horizontal and slant affixed sheet；the increasing degree of shear capacity and the improvement of seismic behaviour of BFRP are significantly close to that of the specimen strengthened with epoxy-based CFRP；furthermore with its lower price ,BFRP is more suitable in masonry reinforcement fields.