| Summary: | 碩士 === 國立中央大學 === 土木工程學系 === 85 === Structures may be failure or damaged from reciprocating
loading of strongearthquakes because of its demands for strength
and energy dissipation capacities are inadequate. Lessons
learned from 1994 Nothridge earthquake in US and 1995 Kobe
earthquake in Japan have indicated the structures those were
designed according to the old seismic design provisions need to
be upgraded to prevent them from severe seismic shocks. Many
researchers have proposed different procedures for upgrading
thestructure from seismic damage. The procedures are usually
required to find out the weakest elements in the system to be
strengthened. After the selected elements are modified or new
elements are added, structural analyses are required to verify
the seismic resistant capacity of the re-strengthenedstructures
are adequate. In most cases, the re-strengthening procedures
require iterative processes and are time-consuming. In this
study, an optimization procedure for re-strengthening
weakstructures using TADAS devices are proposed. The
optimization techniques are used to select the dimensions and
the numbers of TADAS device. Nonlinear dynamic analyses are ten
performed to verify the adequacy of seismic resistant capacity
of the upgraded structures.
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