Displacement-based seismic design of RC wall-frame buildings and asymmetric plan buildings

Abstract

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Incorporation of Torsional & Higher-Mode Responses in Displacement-Based Seismic Design of Asymmetric RC Frame Buildings

“…It is known that multiplying a stiffness matrix by a factor does not change the first-mode shapes, φ i , and first-mode modal participation factor, Γ 1 . Though the first-mode spectral displacement, D 1 , changes as the first-mode period varies, it cancels out from Equation (11). Hence, the design displacements, ∆ i , and the story lateral forces, F i , remain unaltered.…”