High strength steel in chevron concentrically braced frames designed according to Eurocode 8

Nonlinear Behaviour, Design and Analysis of Steel Structures: Recent Findings and New Trends for the Next Generation of European Design Standards

“…The paper by Tenchini et al [24] investigates the potential advantages of using high strength steel in the seismic design of chevron braced frames. In line with former studies carried out by those authors [25,26], the actual benefit of using high strength steel is quite limited for medium rise buildings. A very interesting paper on buckling restrained braces (BRBs) was presented by Zsarnóczay et al [27], which completes this thematic issue.…”

Finite Element Analyses on Free From Damage Seismic Resisting Beam-to-Column Joints

“…The current seismic design procedures are based on the philosophy of hierarchy of resistances that aims at achieving ductile and dissipative plastic mechanisms with relatively low constructional costs [1][2][3][4][5][6][7][8]. Although effective and economically advantageous at the construction stage, the capacity design philosophy applied to traditional structural systems requires structural damages after seismic events, thus leading to significant economic losses [9][10][11][12][13].…”

Finite Element Analyses on Seismic Response of Partial Strength Extended Stiffened Joints

“…The seismic design of steel structures, in accordance with the EN1998-1-1 [7] philosophy, is based on the concept of dissipative structures that are designed to develop plastic deformations in specific zones, while the non-dissipative parts should resist elastically the seismic action in order to avoid brittle collapse [10][11][12][13][14][15][16]. This behaviour can be obtained imposing that the dissipative zones are the weaker and the non-dissipative are designed to resist the ultimate strength developed by the dissipative elements.…”

“…However, partial strength ESEPB joints can be profitably used either in dual frame structures (e.g. MRFs + CBFs), where it is more convenient to have rigid joints accepting the damage of the connections, or in MRFs mostly designed to satisfy drift and/or stability checks [10]. In such cases, ESEPB joints are more efficient than unstiffened end-plate joints.…”