PERILAKU INELASTIK SISTEM RANGKA BATANG PEMIKUL MOMEN KHUSUS TIPE VIERENDEEL BERPENGAKU BRESING ANTI TEKUK
ABSTRACT: This research
evaluates the inelastic
behavior of ductile
Buckling-Restrained Braced
Truss-girder Moment Frames (BRBTMF)
by analytical means.
The BRBTMF proposed
in this paper
is the modification
of the Special
Truss Moment Frames (STMF) Vierendeel type by inserting
Buckling-Restraint Braces (BRB) inverted-V-type into Vierendeel-segment to
improve its inelastic behavior. The BRB section is a strip plate core LYS235
low yield steel, cased with rectangular hollow section A36 steel as a
buckling-restraint material. The four story-seven bays frame model is analyzed
using DRAIN-2DX nonlinear software. From the Nonlinear History Analysis using
earthquake records, it can be
concluded that in
general, the BRBTMF
has better inelastic
behavior than the
STMF Vierendeel type. The BRBTMF has the drift ratio up to
40.5 percent and the roof displacement up to 20.2 percent less than those in
the STMF Vierendeel type due
to the Miyagi
record. It has
been proven from
the Nonlinear Static
Push-Over Analysis that
the BRBTMF has a
good ductility, which
is 33.2 percent
greater than that
of the STMF
Vierendeel type. The base
shear resulting from the Push-Over Analysis in the BRBTMF is 41.4
percent less than that in the STMF Vierendeel type. Based on these
preliminary studies, it
is possible to
verify the validity
of the BRBTMF
proposed by experimental
means and furthemore the BRBTMF may be implemented to practice.
Keywords: inelastic behavior,
Special Truss Moment Frame Vierendeel type , BRBTMF
Penulis: Hidajat Sugihardjo
Kode Jurnal: jptsipildd090009
