Kurniawan, Sofyan Ari (2024) Pengaruh Letak Bracing Eksentris Terhadap Rasio Partisipasi Massa, Periode Getaran, Gaya Gempa Dasar Dan Simpang Antar Lantai Pada Struktur Steel Frame Tube Tahan Gempa Dengan Analisa Respon Spektrum. Undergraduate thesis, Fakultas Teknik Universitas Merdeka Malang.

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Abstract

The construction of high-rise buildings is very vulnerable to earthquakes, so it is necessary to apply a steelframe tube system. In the steelframe tube structural system, eccentric bracing is added which aims to add rigidity to the structure and reduce the effect ofsher lag on the steelframe tube structure. The structure under review is a 20-story steel frame tube building structure. There are several modeling variations planned based on the location of the eccentric bracing, namely the 4-Side-4 Corner-Center Symmetrical Eccentric Bracing Location Model, the 4-Side-Without Corner Eccentric Bracing Location Model, and the 4-Side-4 Corner-2 Center Side Eccentric Bracing Location Model. Structural modeling is done in 3D with SAP2000 software and earthquake force analysis using spectrum response analysis. The recommended model is the 4-Sided Eccentric Bracing Without Angle Model because it has the largest vibration period value with a value of 1.2915 seconds, the smallest base earthquake force in the X direction of 3864.51 kN and in the Y direction of 3656. 74 kN, the smallest inter-storey intersection in the X direction of 17.97 mm and in the Y direction of 19.44 mm.

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