極低強度コンクリートの既存建物から切り出したRC梁の構造性能とエポキシ樹脂注入による補修効果

抄録

Experiments and finite element analysis were performed using members taken from an existing RC building. The average concrete strength from the material tests was less than 10N/mm², the RC building was of extremely low strength concrete. The obtained members were subjected to reversal loadings to evaluate the validity of the equations of ultimate strength used in the seismic evaluation. Further, the damaged members were repaired with epoxy resin injection to investigate the effect of repairs after earthquake events. The behavior of actual members and the repair effect of epoxy resin injection for low strength concrete were discussed in the paper.