Enhancing steel building dynamic performance under cyclic loadings using plate steel shear panels
摘要
Because of their superior seismic resilience, steel plate shear panels are among the most popular and suitable lateral load resistive structural solutions for steel buildings. The employ of this strengthening method has a number of benefits above other typical lateral load resistance systems, like traditional braces. A few obvious benefits of steel plate shear panels include their ability to save steel, ease of setting up, lower foundation costs, and significant stiffness preventing structural drift. The impact of utilising steel plate shear panels on the behaviour of steel structures is discussed and examined in this work. In order to model steel frames using a steel plate shear panel and a conventional diagonal brace under cyclic loads, finite element method (FEM) computations were used with the employ of a structural program analysis. Firstly, a validation of numerical model was carried out in comparison with experimental findings, thus eigenvalue buckling analysis was presented in order to specify the starting defect needed for a realistic modelling. The outcomes of the nonlinear dynamic analysis of the laboratory sample show satisfactory acceptance. Then the key properties against dynamic loadings, such as lateral stiffness, ultimate shear capacity, energy dissipation, and ductility are examined employing static nonlinear analysis. According to the computational findings, adopting Steel plate shear panel (SPSP) to resist lateral-load in compared to a conventional bracing frame (CBF) provides superior stiffness, ultimate strength, ductility, and energy dissipation.