Research Information System
10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering (CICE), İstanbul, Turkey, 8 - 10 December 2021, vol.198, pp.63-77
This paper presents a critical review of advanced retrofit materials and recent techniques that may be utilized in earthquake resistant redesign of reinforced concrete structures to increase their resilience and safety. It also discusses some open design recommendation-related issues that may jeopardize structural member resilience. It reveals the potential of the Elastic Redistributable Uniform Confinement (ERUC) mechanism and concept and the contribution of relevant techniques in addressing some of the open issues. There is an urgent need for large scale dynamic experiments according to the fundamental 'design assisted by testing' procedure. Besides, the development of the framework for advanced dynamic 3-dimenional Finite Element (FE) modelling could support analytically these significant tasks. This study presents pilot pseudo-dynamic analytical studies on the Elastic Redistributable Uniform Confinement technique through external continuous spiral composite rope strengthening of concrete as well as on the FRP jacketing of RC columns. Three-dimensional FE modeling may help minimize required experimental validation of emerging techniques for seismic protection of brick infilled RC frames through highly deformable polymer joints or through externally bonded fiber grids with highly deformable polymers. Finally, it may help identify additional design parameters, enable further optimization of different hybrid retrofit techniques and enhance resilience and safety of concrete members.