Seismic Performance of Composite Walls with Encased steel Braces. Behavior of composite walls with encased steel braces (ESB walls)

      Аннотация: The composite wall with encased steel braces (ESB wall) is a novel type of steel–concrete composite wall that consists of a steel braced frame embedded in reinforced concrete. This arrangement is supposed to enhance the seismic performance of the wall, as the steel columns encased in the boundary elements can increase the flexural strength of the wall and the steel braces encased in the web can increase the shear strength. ESB walls have seen use in super tall building structures constructed in regions of high seismicity. The ESB walls are commonly used on stories where the shear force demand is very high. Currently, no design guidelines exist for the design of ESB Walls in the Eurocode. The present research will investigate behavior of composite walls with encased steel braces (ESB walls).. In this study, two frames with three floors and five floors will be modeled in ABAQUS software. Then the X- shaped braces and inverted V brace is added to frames. Later, reinforced concrete shear wall will be added to braced frames, so the steel braces encased in the reinforced concrete shear wall. Time history analysis, on the braced frames will be done Compare and note with each other.

Ключевые слова: Arrangement, seismic performance of the wall, seismic performance, steel columns, Boundary Elements, Flexural strength, steel braces, Shear Strength