| Summary: | 碩士 === 國立成功大學 === 建築研究所 === 81 === The purpose of this paper is to establish nonlinear
aseismic diagnosis programs for reinforced concrete building
with shear walls subject to man-made damages such as
construction error and fire exposure . Furthermore , this
paper tries to get the collapse ground acceleration and
failure mechanisms of any R.C. building. These would be good
references for strength or retrofitting . In order to
assess the collapse ground acceleration for R.C. buildings
under earthquake , the non-linear incre- mental spectrum
analysis is employed . The ground accelera- tion shakes
from zero and increases gradually up to cracking ,
yielding , plastic hinging and total collapse of the
building . During each loading step , member stiffness
, damping ratio , P - △ effect and plastic hinges are
changed . The maximum relative rotation capacity at each
beam-column joint are also checked from step to step
to concern the local joint failure and the possible
included progressive collapse . The proposed analytical
results are compared to two shaking table specimens . The
comparison shows reasonable prediction for yield and
collapse ground acceleration, yield and collapse base shears ,
yield and collapse roof deflections . The peak ground
acceleration , base shear, tangential period and roof
deflection for buildings after man-made damages will be
changed . These four parameters are very good indices for
damage assessment for earthquake . All the examples in this
paper will be diagnosed by using these four indices .
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