MONALISA, MONALISA (2020) PERBANDINGAN HASIL DESAIN STRUKTUR GEDUNG TIDAK BERATURAN HORIZONTAL DENGAN SHEAR WALL DAN TANPA SHEAR WALL. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
A building that has an irregular plan can be applied to a location that has limited land. However, building structures that have an irregular (asymmetric) shape tend to have less performance in resisting earthquake forces when compared to building structures that have a symmetrical plan. The condition of the building structure like this can be overcome by placing shear walls so that the building structure has better rigidity. This study aims to determine the comparison of the value of shear and deviation forces between floors in buildings using shear walls and buildings without using shear walls. The research begins with the calculation of the preliminary structural design first, then analyzes the building without shearwall. After analyzing the building without shearwall, then the shearwall is varied to find the optimum position of the shearwall. In the analysis of buildings with shearwall, dimensional changes are made to beams and columns. The building to be reviewed is a 12-story apartment building. This research was planned in Tangerang City with moderate soil types and was assisted by the ETABS 16.2.1 software. (1) The structure of the building is included in type 2 horizontal irregularity, namely inner angle irregularity. (2) On the 1st floor of a building with shearwall, the eccentricity decreased by 0.206 mm. Meanwhile, on the 7th floor of a building with shearwall, there is an increase in the eccentricity of 0.932 mm. (3) the value of the greatest shear force is found in buildings with shearwall (13542.7 kN) while buildings without shearwall (7019.56 kN) (4) The maximum deviation between floors is found in buildings without shearwall (X direction: 54.39 mm; direction Y: 52.39 mm) while the building with shearwall (X direction: 51.27 mm; Y direction: 37.15 mm). (5) The largest building stability coefficient is found in buildings without shearwall with a value of 0.07714. (6) Structures with shearwall have less reinforcing requirements than structures without shearwall. This is because the internal forces in the building are absorbed by the shearwall. Keywords: Comparison of Design Results, Horizontal Irregularity, Eccentricity, Shear Wall Suatu bangunan yang memiliki denah tidak beraturan dapat diterapkan pada lokasi yang memiliki keterbatasan lahan. Namun struktur bangunan yang memiliki bentuk tidak beraturan (asimetris) cenderung memiliki performa yang kurang baik dalam menahan gaya gempa jika dibandingkan dengan struktur bangunan yang memiliki denah beraturam (simetris). Keadaan struktur bangunan seperti ini dapat diatasi dengan menempatkan dinding geser sehingga struktur bangunan mempunyai kekakuan yang lebih baik. Penelitian ini bertujuan untuk mengetahui perbandingan nilai gaya geser dan simpangan antar lantai pada gedung menggunakan shear wall dan gedung tanpa menggunakan shear wall. Penelitian diawali dengan perhitungan preliminary design struktur terlebih dahulu, kemudian dilakukan analisis bangunan tanpa shearwall. Setelah melakukan analisis bangunan tanpa shearwall kemudian dilakukan variasi letak shearwall untuk mencari posisi shearwall paling optimum. Pada analisis bangunan dengan shearwall dilakukan perubahan dimensi pada balok dan kolom. Gedung yang akan ditinjau adalah gedung apartemen 12 lantai. Penelitian ini direncanakan di Kota Tangerang dengan jenis tanah sedang serta dibantu oleh peranti lunak ETABS 16.2.1. (1) Struktur bangunan termasuk ke dalam jenis ketidakberaturan horizontal type 2 yaitu ketidakberaturan sudut dalam. (2) Pada lantai 1 bangunan dengan shearwall terjadi penurunan eksentrisitas sebesar 0.206 mm. Sedangkan pada lantai 7 bangunan dengan shearwall terjadi peningkatan eksentrisitas sebesar 0.932 mm. (3) nilai gaya geser terbesar terdapat pada bangunan dengan shearwall (13542,7 kN) sedangkan bangunan tanpa shearwall (7019,56 kN) (4) Simpangan antar lantai maksimum terdapat pada bangunan tanpa shearwall (arah X: 54,39 mm; arah Y:52,39 mm) sedangkan bangunan dengan shearwall (arah X:51,27 mm; arah Y:37,15 mm). (5) Koefisien kestabilan bangunan terbesar terdapat pada bangunan tanpa shearwall dengan nilai 0,07714. (6) Struktur dengan shearwall memiliki kebutuhan tulangan yang lebih sedikit jika dibandingkan dengan struktur bangunan tanpa shearwall. Hal ini disebabkan karena gaya dalam pada bangunan diserap oleh shearwall. Kata kunci : Perbandingan Hasil Desain, Ketidakberaturan Horizontal, eksentrisitas, Shear wall
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