Constructions in Indonesia has rapidly develop in the decade. There are many
building and infrastructure has been built to support the economy situation in
Indonesia. This is one of the reason of importance the construction field. Nowadays
structure not just square or circle, the structure develop into unique shape. And the
calculation process will more complicated. Then, problem main probel of asymmetrical
structure is eccentricity.
The eccentricity will caused horizontal torsional moment on the structure. To
calculating the center of the mass only required dead and live load. But, calculating the
stiffness of the structure depends on the material properties that used. And adding wall
will take effect to the shifting of the stiffness on the structure too.
Writer focused to the simulation study to collect the influence of the infill wall
by input in 2 conditions; interact and without interaction to the frame. This infill wall
added in one corner of the structure. The infill wall that observe are in the asymmetric
RC structure with eccentricity and simulated on Seismostruct with nonlinear static
analysis (pushover analysis).
The structure that have infill wall interact directly to the frame have 0.002m
more displacement in X direction . And in Y direction, it has less displacement in
second and third stories. The torsional moment that acting to infill wall without
interaction to the frame have 31% more torsional moment in first story, 63% more in
second story but it has 36% less in the third story. For the axial forces that acting to the
infill wall without interaction to the frame have 14% more axial forces in the first story,
10% more in the second story and 2% more in the third story. The beam moment of the
structure that have infill wall interact to the frame have smaller moment compare to
structure that have infill wall doesn’t interact to the frame.