Researches have been conducted to study Shearwall-frame combined with belt truss as
structural system (SFBT), in which the post-elastic behavior and ductility of this structural
system are explored. A 60-story SFBT building, with a ductility set equal to 3.75 (value for fully
ductile cantilever wall) is considered. The Elastic Response Spectrum used for design is taken
from Zone 2 of Indonesian Seismic Map. Capacity design method according to Indonesian
Concrete Code is employed. The seismic performance is analyzed using static non-linear pushover
analysis and dynamic non-linear time-history analysis. Spectrum consistent ground
motions of the May 18, 1940 El-Centro earthquake N-S components scaled to maximum
accelerations of various return periods (50, 200, and 500 years) are used for analysis. The results
of this study show that plastic hinges mainly developed in beams above the truss, columns below
the truss, and bottom levels of the wall. The building shows no indication of structural
instability.