Long links on eccentrically braced frames (EBF) have lower performance than short and intermediate links. Failure of long occurs faster that medium due to the influence bending moment, which is more dominant at ends link shear forces. The objective this research improve by delaying failure buckling fracture flange web ends. According AISC 341, cross-sectional capacity outside beam greater link....

Hybrid moment frame come together with reinforced concrete columns with structural steel beams (RCS). This Composite system provides several key advantages over current steel or concrete moment resisting frame. Past studies have shown this system to be efficient in both design and building stage while able to keep sufficient strength and necessary ductility in seismic zone.Although past researc...

In this paper, we propose an assembled self-centering buckling-restrained brace (ASCBRB), which eliminates the residual drift of structures after a major horizontal displacement. The ASCBRB also represents advanced device for partial replacement damaged parts brace. Four groups prestressed disk springs and metal yielding core plate were used to improve resilience energy dissipation brace, respe...

Vertical combination of different seismic resisting systems, permitted in the design codes such as ASCE/SEI7-16, is an effective choice for structural mid- and high-rise buildings. In analysis structures, according to codes, estimate fundamental period vibration needed. On other hand, there no simplified equation compute mixed buildings with vertical systems. this study, by using Rayleigh’s met...

Recent studies have indicated the need of considering aftershocks in seismic design/assessment structures. This article investigates effect sequential mainshock and aftershock earthquakes on eccentrically braced steel frames with vertical energy-absorbing links. To achieve this, 4, 8 12-storey frame buildings are modelled Perform3D® software non-linear behaviour materials components. The subjec...

In the last decades, high priority has been given by research community to development of low-damage structures, and reparability become fundamental for minimizing environmental economic impact reconstruction. this context, European Research Fund Coal Steel (RFCS) project DISSIPABLE was carried out, with aim test large-scale structures where dissipation is concentrated on replaceable components...

In recent years, the devastating earthquakes that occurred in many parts of world have made it even more important design earthquake-resistant structures and earthquake performance assessment existing structures. When innovative systems are examined building design, is seen depending on developments performance-based designs come to fore addition force-based design. This paper provides a new me...