INVESTIGATION OF INTERACTION INFILL WALLS AND RC FRAME IN ASYMMETRICAL STRUCTURE

Aditama, I Putu Deny Surastika (2020) INVESTIGATION OF INTERACTION INFILL WALLS AND RC FRAME IN ASYMMETRICAL STRUCTURE. S1 thesis, UNIVERSITAS ATMA JAYA YOGYAKARTA.

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Abstract

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.

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