Analysis of Multi-Storey Steel Structures with Different Bracing Types

Abstract

Purpose: This study was carried out to show the effect of steel bracing systems on a multi-storey steel structure in terms of base shear forces, displacements and structure weights. Study design/methodology/approach: Analysis of two different structures with 20 floors, 3 meters in height and 60 meters in total building height, 5 spans in both directions and 30 meters in both directions, without braces and with central X braces, were analyzed with the SAP2000 program under the influence of constant load, live load, snow load and horizontal loads, as well as 2 different ground classes and 2 different spectrum acceleration coefficients, taking into account the ÇYTHYE-2016 and TBDY 2018 regulations. Findings: According to the findings obtained, it was determined that the weight of the structure decreased due to the reduction of the cross-sections formed by the use of the diagonal system of the X diagonal system compared to the unbraced system, greatly reducing the base shear forces, and significantly limiting the displacements. Originality/value: In this study, it has been shown what kind of positive effects the use of steel braces in multi-storey steel structures has on the building safety and economically. Analysis with the SAP2000 program gave successful results in this sense.