Comparison of Proposed Reflection Coefficient of 2800 Iranian earthquake code with Real Reflection from Different area of Gorgan City in Interaction with Seismic Response of Steel Structures

The present study is intended to illustrate the role of reflection coefficient (B) in the linear static method, (B) is a conversion function whose input is accelerated rock bed motion and its output is accelerated earth motion. to understand properly how seismic methods work and to properly evaluate information based on physical principles governing wave propagation characteristics, which can include the generation, transmission, absorption, and irregularities of waves in terrestrial rocks as well as reflection, fracture and The main axis of the waves are out. the purpose of this study was to investigate the soil material in earthquake forces applied to the structure and the importance of reflection coefficient in the control of the structure. in this research, steel structure with one-way bending frame system with reflection coefficient in accordance with standard 2800 - Fourth Edition and again with real reflection coefficient of Gorgan city was analyzed and plotted. the results showed that the average displacement of its classes decreased by 53.3% on average, and its drift decreased by 25.3%.