Seismic Design and Performance Assessment of Frame Buildings Reinforced by Dual-Phase Steel

To improve the durability and serviceability of reinforced concrete structures, different variants dual-phase reinforcing steel were developed within research project NEWREBAR. The investigated variant new material, termed DPD2 steel, has a specific microstructure that increases corrosion resistance, but its yielding strength is less than Tempcore B500B. no plateau, which characteristic conventional steel. Thus, it was whether current building codes can be used to design earthquake-resistant structures by bars. For this reason, three multi-story frame buildings designed according Eurocode considering and, for comparison reasons, Based on nonlinear model, validated cyclic test columns, seismic performance found improved compared those with B500B This mainly attributed substantial strain hardening overstrength factor structure about 10%. However, performance, amount in had increased approximately 20–25% due smaller yield Nevertheless, demonstrated 8 could DPD2.