Strengthen of RC Members by Using CFRP. Study on Dynamic Response of CFRP-Reinforced Square RC Members Under Unequal Transverse Impact

      Аннотация: Carbon fibre reinforced polymer (CFRP) strengthening of concrete structures under impact loading has shown great potential in recent years. However, concrete structures often experience natural (e.g. earthquake, wind) as well as man-made (e.g. vehicular impact, blast) dynamic loading. Therefore, there is a growing interest among researchers to investigate the capability of CFRP strengthened members under such dynamic conditions. This book focuses on the experimental test and finite element (FE) numerical modelling and simulation of CFRP strengthened RC member under unequal trans-lateral impact loading to predict the behaviour and failure modes. Impact simulation process and the CFRP strengthened RC members are validated with the existing experimental results in this book. The validated FE model of CFRP strengthened RC member is then further used to investigate the effects of unequal trans-lateral impact loading on its structural performance. Comparisons between unstrengthened RC member and strengthened CFRP-RC member clearly indicate the performance enhancement of strengthened member under unequal trans-lateral impact loading.

Ключевые слова: CFRP-RC component, unequal trans-lateral impact, failure mode, wrapping method, CFRP layer number, short-term bending stiffness, RC members, CFRP layers, CFRP constitutive model