Genetic Algorithm for the optimal placement of Self-Centering Damage-Free joints in steel MRFs

Pseudo‐dynamic testing, repairability, and resilience assessment of a large‐scale steel structure equipped with self‐centering column bases

“…[26][27][28][29] Besides, it has also been demonstrated that protecting the Column Bases (CBs) is paramount to achieve structural resilience. 30,31 Several CB configurations exist and are usually classified according to their interaction with the reinforced concrete foundation, such as embedded, 32 shallowly embedded, 33 concrete-encased, 34 or exposed. 35,36 However, conventional full-or partial-strength CBs are characterized by significant drawbacks.…”

Damage-free self-centring links for eccentrically braced frames: development and numerical study

“…Several research efforts proposed and investigated innovative seismic-resilient structural systems to control the structural damage and enable improvements in their self-centring capabilities [e.g., [6][7][8][9]. Many of these studies focused on the development of self-centring moment-resisting frames (MRFs) [e.g., [10][11][12][13][14][15][16][17][18][19][20][21][22][23] and concentrically braced frames (CBF) [e.g., [24][25][26][27][28][29][30] by employing a combination of high-strength post-tensioned (PT) steel bars (or strands) to promote the self-centring capability of the structure, and dedicated fuses, e.g., yielding or friction devices (FDs), to dissipate the seismic input energy. Additionally, other proposals improve the seismic performance of steel MRFs employing shape memory alloys (SMA) connections to restore the deformations and ductile energy dissipation links [22,23].…”