Analytical Pushover Curves for X-Concentric Braced Steel Frames

In this work, analytical pushover curves for concentric braced steel frames with active tension diagonal bracings (X-CBF) are proposed. A “spindle”, characterized by two trilinear capacity defined an X-CBF system subjected to prefixed lateral forces distribution, is defined. The able grasp the elasto-plastic behavior of X-CBFs. reliability proposal verified a series numerical comparisons obtained through accurate finite element model, calibrated on basis experimental results. extended whole single- and multi-storey structures, showing good correspondence results analyzed case studies.