Seismic Evaluation of Spherical Dome with GFRP Rebar’s and Sandwich Laminates

Abstract

Steel corrosion in reinforced concrete is one of the major reasons for the deterioration of our infrastructure. Complementary, non-corrosive materials, superior strength, high rigidity, and reduced weight, notably sandwich laminates are used as well as fiber reinforced polymer (FRP) rebars were used as internal reinforcement for concrete structures to combat this issue. In contemporary construction, glass fiber reinforced polymer (GFRP) rebar gained a stronger significance such to high specific strength, strong corrosion resistance, high frost resistance, and poor thermal conductivity among other factors. To create aesthetically pleasing, economically viable, and practical applications in schools, gymnasiums, water parks, community centers, and amenities. Dome Technology uses the most recent engineering and architectural innovations. Since they are susceptible to any loadings during their service life, understanding their behavior is crucial for study and design. This comparative study examines how variously thickened spherical dome constructions made of RCC, GFRP, and sandwich laminate react to earthquakes under static loads. Based on IS: 1893-2016, linear static analysis is performed using SAP-2000 software, and 14 distinct load combinations are applied using the Equivalent Static Method. The results are compared to values that are acceptable by Indian norms.