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Seismic resistance of steel structures

Steel structures have long been recognized as excellent earthquake-resistant systems
. The American Institute of Steel Construction (AISC) Seismic Provisions permit only certain grades of steel for seismic design, including ASTM A36, A53, A500 (Grades B and C), A501, A572 (Grades 42 and 50), and A992
. The seismic behavior of steel frame structures has been the subject of extensive research since the 1994 Northridge and 1995 Kobe earthquakes
. The AISC Seismic Provisions for Structural Steel Buildings is a consensus standard that addresses the design and construction of steel structures in seismic zones
. Structural steel structures assigned to Seismic Design Category B or C shall be of any construction permitted in Section 2205