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 Vierendeelsegment
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.