Satria, Erlando Bima (2023) Analisis Pengaruh Ketidak Simetrisan Horizontal Dinding Geser terhadap Perilaku Dinamis Struktur pada Sistem Rangka Gedung Berdasarkan SNI 1726-2019. Undergraduate thesis, Fakultas Teknik Universitas Merdeka Malang.

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Abstract

High-rise building structures such as office buildings and hotels must give priority to the principle of lateral force strength, so it is necessary to add shear walls to withstand lateral forces due to earthquakes. Based on SNI 1726-2019 Structures are classified into irregular and irregular structures. Ideally, the condition of the building has symmetrical sliding walls in order to withstand lateral loads well, while the placement of shear walls that are not symmetrical to the structure greatly affects the dynamic behavior of the structure. Therefore, it is necessary to review the effect of horizontal insymmetry of sliding walls on the dynamic behavior of structures based on SNI 1726-2019.
The structure under review is a 10-story building, located in the city of Malang, with the placement of different sliding walls according to the axis of the building, building planning using the Building Frame System (SRG), loading using SNI 1276-2019 and SNI 1726-2013, earthquake force analysis using a spectrum response dynamic analysis method based on SNI 1726-2019, and Structural modeling is carried out in 3D with the SAP 2000 v.18 program. The problem under review was the horizontal asymmetry of the sliding wall and the dynamic behavior of the structure.
The results of the analysis show that the ratio of mass participation in the x and y directions of each model has the same number of shape modes. The longest vibration period obtained the largest value in MDGTX. The shortest vibration period is obtained by the smallest value in MDGTX. The base earthquake force in the x and y directions obtained the smallest values on MDGTY. The intersection between the smallest floors of the x direction is obtained the smallest value in MDGTX, and for the y direction the smallest value is obtained in MDGTY.
Based on the performance theory of earthquake-resistant structures, the structure chosen for the x direction is MDGTX because it is more dominant where the period of vibration is the largest, the base earthquake force is large and the intersection between small floors. While the structure chosen for the y direction, namely MDGTY because it is more dominantly largest, the base earthquake force is small and the interchange is small. The avoided structure, i.e. MDGTXY due to small vibration period values, large base earthquake forces, and large inter-floor deviations.

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