Abstract:

The rules developed for the earthquake-resistant design of structures in order to be protected from the devastating effects of earthquakes are now transformed into performance-based design conditions, while performance-based design requires specific conditions for each type of structure. The steel structures are expected to be strengthened by cross-elements to be able to safely carry the horizontal forces they will be exposed to due to the effects of the earthquake, and the combination details are expected to provide appropriate coating conditions. In structures supported by cross-elements, the guse elements that allow cross-elements to connect to the carrier elements are expected to affect the earthquake behavior of the structure. This study has been conducted analytically to study the earthquake behavior of central steel cross steel frameworks with different guse designs. Seven real earthquake records are scaled to carry out nonlinear analyses in the time-definition area and to provide analysis criteria. Additionally, the five-storey structure consisting of cross-fortified steel frameworks has been designed and studied in accordance with current regulatory conditions. Five-storey frame structure systems created by designing guse elements in different thicknesses, modeled using the OpenSees software, the impact of guse thickness on the structure reactions has been assessed.

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Abstract:

In order to protected against destructive effects of earthquakes, the rules that have developed for earthquake resistant design of buildings have been transformed into performance-based design conditions that demands special requirements for different type of structures. Steel structures should be reinforced with brace members and joint details should provide suitable ductility conditions in order to safely carry the horizontal forces that occurs due to earthquake effect. The gusset plates that provide the connection of brace members to structural elements are expected to affect the earthquake behavior of braced steel structures. This study conducted analytically to investigate the earthquake behavior of braced steel frames with different gusset plate designs. Seven real earthquake records were selected and scaled for the purpose of satisfying analysis criterions to perform nonlinear time history analyzes. In addition, the five storey braced steel frames that designed in accordance with the current codes and standarts were examined. The structures that designed with the gusset plates, which have different thicknesses, were modeled via OpenSees software and the effect of gusset plate thickness on the structural responses was evaluated.