Ductility of a 60-Story Shearwall Frame-Belt Truss (Virtual Outrigger) Building
Abstract: 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 push-over
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.
Keywords: Ductility, shear
wall frame–belt truss, static non-linear push over analysis, dynamic non-linear
time history analysis
Author: Pudjisuryadi P., Lumantarna
B., Tandya H., Loka I.
Journal Code: jptsipilgg120018
