چكيده به لاتين
The steel shear wall is an efficient and economical lateral resistance system against lateral loads, which has performed well in numerical and laboratory studies as well as in past earthquakes. This system has ductility, lateral stiffness, and high resistance. The post-buckling behavior of unstiffened steel shear walls results in high stresses within the columns surrounding the sheet, whereas buckling in the elastic region results in system energy absorption being lost due to pinching in the hysteresis curve. Corrugated sheets increase the elastic shear resistance of sheets, but their non-linear behavior and elastic buckling reduce ductility. A combination of corrugated and flat plates was studied numerically and parametrically in this thesis to study the performance of a steel wall made from corrugated and flat plates. In order to investigate the behavior of the shear wall model, 75 models were analyzed. A study of the effect of thickness and panel dimensions on seismic parameters under monotonic and cyclic loading was conducted. Comparing the proposed wall with the conventional shear wall reveals that, in addition to increasing stiffness, resistance, and energy absorption in the proposed wall, the nonlinear behavior of the sheet reduces stresses in the surrounding frame. Also, the effect of bolts rows, the geometry of the corrugated plate, and the panel's dimensions ratio on the wall's behavior have been investigated. As a result, if the distance between the screws is less than a quarter of the sheet length, it has little effect on the system's response. In addition, increasing the angle of the corrugated sheet improves the performance of the system, but this improvement only lasts up to 51.8 degrees, and beyond that, there is no significant effect. Since the proposed wall is a new system compared to conventional walls, its design relationships are not available. Therefore, the necessary relationships have been extracted for analyzing and designing such systems, and they are congruent with the finite element results.
