KAJIAN ALTERNATIF MENGHITUNG TINGGI EFEKTIF DINDING GESER DENGAN OPTIMASI KETINGGIANNYA SECARA BERTAHAP Study Kasus Gedung 25 Tingkat Bertapak Persegi Panjang Tipis

DYANA, DWI BAGUS A'AN (2021) KAJIAN ALTERNATIF MENGHITUNG TINGGI EFEKTIF DINDING GESER DENGAN OPTIMASI KETINGGIANNYA SECARA BERTAHAP Study Kasus Gedung 25 Tingkat Bertapak Persegi Panjang Tipis. S1 thesis, Universitas Mercu Buana Jakarta.

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Abstract

In earthquake-resistant high-rise buildings, shear walls have an important role to add stiffness, stability, and strength at the same time. So far, the calculation (analysis) of the effective height of the shear wall is carried out by installing a shear wall as high as the building and then calculating the shear force that is resisted by the open portal and the shear wall where the negative force shear begins to occur, that is where the effective height of the shear wall is. So that in the design of a double system building, it is necessary to study more deeply about the optimization of the shear wall height which is effective in resisting lateral forces. In this final project, a case study of a 25-storey building with thin rectangular footprints is used to analyze the effective height of the shear wall starting from 70% of the building height, as well as adding the height of the shear wall every 2 levels, namely on the 17th, 19th, 21st, 23rd, 25th floors. The results of the analysis of the effective height of the shear wall in the case study of this thin rectangular 25-storey building located at level 24 (hesw = 24/25 = 0.96 H) with a percentage of 96% of the height of the building because at that level the building has experienced a negative force shear effect. Keywords : Shear Wall, Dual System, High Effective. Pada bangunan tinggi tahan gempa dinding geser mempunyai peran penting untuk menambah kekakuan, kestabilan, dan kekuatan sekaligus. Selama ini perhitungan (analisis) ketinggian efektif dinding geser dilakukan dengan memasang dinding geser setinggi gedung kemudian dihitung gaya geser yang di tahan portal terbuka dan dinding geser di tempat mulai terjadi negatif force shear itulah tempat ketinggian efektif dinding geser. Sehingga dalam perancangan bangunan sistem ganda perlu dikaji lebih dalam mengenai optimasi ketinggian dinding geser yang efektif dalam menahan gaya lateral. Pada tugas akhir ini digunakan studi kasus gedung 25 tingkat bertapak persegi Panjang tipis untuk dianalisis tinggi efektif dinding geser dimulai dari 70% terhadap ketinggian bangunan, Serta melakukan penambahan tinggi dinding geser setiap 2 tingkat yaitu pada lantai 17, 19, 21, 23, 25. Hasil analisis ketinggian efektif dinding geser pada study kasus gedung 25 tingkat bertapak persegi panjang tipis ini terletak pada tingkat 24 (hesw = 24/25 = 0,96 H) dengan presentase 96% dari ketinggian gedung di karenakan pada tingkat tersebut bangunan sudah mengalami efek negatif force shear. Kata Kunci : Dinding Geser, Sistem Ganda, Tinggi Efektif.

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