OKTAVIANTO, RIZKI DWI (2025) OPTIMASI LETAK EFEKTIF DINDING GESER DALAM MENAHAN GAYA GEMPA DENGAN STUDI KASUS GEDUNG BERTAPAK PERSEGI PANJANG. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Indonesia's geographical location, which is at the confluence of four tectonic plates, makes the region prone to earthquakes. High-rise buildings have a considerable degree of flexibility due to the influence of lateral forces. The taller the building, the tendency for flexibility will also increase. In order for the building to remain able to stand when an earthquake occurs, a structure that is rigid, strong and stable enough to withstand dynamic loads due to vibration is needed. Sliding walls are among the most effective structural elements in resisting lateral forces, so they are widely applied to tall buildings. With high rigidity, strength and plane stability, these elements are able to respond efficiently to horizontal forces while withstanding the vertical loads of building structures. In the research of an 8-storey rectangular building with a rooftop, 3 sliding wall configurations were made. Earthquake analysis using a spectrum response and with the help of ETABS V.22.5. The analysis reviewed was displacement, deviation between levels, double system, p-delta, horizontal irregularity and vertical irregularity. With the aim of finding the most optimal location and height of the use of sliding walls. Based on the results of the analysis obtained, the placement of sliding walls at the four ends of the building with an elbow shape is the most optimal with a displacement value of x 438,405 mm and y direction of 523,347 mm, the deviation between the direction levels x 67.98 mm and the y direction is 82.79 mm, and the p-delta of the direction x 0.029 and the y direction of 0.041, and the height of the sliding wall in the case study of buildings with rectangular footprints, From the 1st to the 8th floor, it still shows that the performance of the sliding wall is still within safe limits and no negative wall has been found. Keywords : SRPMK, Dual System, Structure, Spectrum Reponse, Shearwall Letak geografis indonesia yang berada di pertemuan empat lempeng tektonik membuat wilayah menjadi rawan gempa. Bangunan bertingkat tinggi memiliki tingkat fleksibilitas yang cukup besar akibat pengaruh gaya lateral. Semakin tinggi bangunan, maka kecenderungan terjadinya fleksibilitas juga akan meningkat. Supaya bangunan tetap mampu berdiri saat gempa terjadi, diperlukan struktur yang cukup kaku, kuat dan stabil untuk menahan beban dinamis akibat getaran. Dinding geser termasuk elemen struktural yang paling efektif dalam menahan gaya lateral, sehingga banyak diterapkan pada bangunan tinggi. Dengan kekakuan, kekuatan dan stabilitas bidang yang tinggi, elemen ini mampu merespon gaya horizontal secara efisien sekaligus menahan beban vertikal dari struktur bangunan. Pada penelitian gedung bertapak persegi panjang 8 lantai dengan rooftop, dibuat 3 konfigurasi dinding geser. Analisa gempa menggunakan spectrum response dan dengan bantuan ETABS V.22.5. Analisa yang ditinjau yaitu displacement, simpangan antar tingkat, sistem ganda, p – delta, ketidakberaturan horizontal dan ketidakberaturan vertikal. Dengan tujuan mencari letak dan ketinggian yang paling optimal dari penggunaan dinding geser. Berdasarkan hasil analisa yang didapatkan penempatan dinding geser di keempat ujung bangunan dengan bentuk siku merupakan yang paling optimal dengan nilai displacement arah x 438.405 mm dan arah y 523.347 mm, simpangan antar tingkat arah x 67.98 mm dan arah y 82.79 mm, dan p-delta arah x 0.029 dan arah y 0.041, dan ketinggian dinding geser pada studi kasus gedung bertapak persegi panjang, dari lantai 1 sampai lantai 8 masih menunjukan bahwa kinerja dinding geser masih dalam batas aman dan belum ditemukan negative wall. Kata Kunci : SRPMK, Sistem Ganda, Struktur, Respon Spektrum, Dinding Geser
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