Effect of double corrugated steel plate shear wall on the seismic performance of steel moment resisting frame structure

This paper presents a detailed evaluation of the performance of Double Corrugated Steel Plate Shear Walls (DCSPs) through comprehensive numerical analysis. The study is conducted in three distinct phases. The target is to determine how DCSPs would perform if it was the main lateral bearing system of a predesigned dual system enhanced by moment frames and X-Braces. In the first phase, six numerical models were developed using Abaqus to assess the effectiveness of DCSPs compared to conventional industrial braced frames. The analysis focused on steel structures ranging from 10 to 30 stories, incorporating both DCSPs and traditional brace sections. To ensure a fair comparison, the capacities of the two systems were equalized at three different building heights. Push-over analysis revealed that DCSPs in shorter structures exhibit load-displacement capacities similar to those of braced frames, which aligns with the desired performance. However, as the building height increases, DCSPs demonstrate superior material efficiency, maintaining equivalent load-displacement capacities. In the second phase, the study examines the structural performance of DCSPs in high-rise buildings by determining the Response Modification Factor (R factor) for both systems using push-over curves. The results indicate that DCSPs achieve a higher R factor compared to braced frames despite both systems displaying nearly identical push-over curves with comparable capacities. This suggests that DCSPs offer enhanced structural performance under seismic conditions. The third phase involves a time-history analysis of two models: one with 10-story frames enhanced by braces and the other by DCSPs. Both systems were subjected to two different earthquake scenarios to evaluate base shear, drift, plastic behavior, and energy outputs. Although both systems were designed to have similar capacities, DCSPs demonstrated superior performance and greater capacity. The DCSPs are a practical option for structural enhancement compared to traditional braced frames, offering better overall efficiency and resilience in seismic events.