Based on equilibrium and compatibility conditions as well as a triline
ar relationship for moment-curvature and torque-twist curves, a theory
was presented to predict the static behaviour of reinforced concrete
spandrel beams. The theory was compared to tests of 20 spandrel beams
and was found to be applicable throughout the loading history. It is s
hown in this paper that the inelastic dynamic response of spandrel bea
ms can be predicted using Takeda's rules for hysteresis loops and the
linear acceleration step-by-step method, and an algorithm is described
for the solution of such beams. Moreover, the effect of material prop
erties on the inelastic dynamic response of such beams is systematical
ly studied. it is found that the ductility factors of such beams are i
ncreased with increasing concrete compressive strengths; and the ducti
lity demands are decreased with increasing concrete compressive streng
ths.