PERBANDINGAN KINERJA STRUKTUR FIXBASE DAN BASE ISOLATION PADA GEDUNG HOTEL KAI BOUTIQUE DENGAN TIME HISTORY

Angga Grecia, - and Istiqomah, - and Nanang Dalil Herman, - (2025) PERBANDINGAN KINERJA STRUKTUR FIXBASE DAN BASE ISOLATION PADA GEDUNG HOTEL KAI BOUTIQUE DENGAN TIME HISTORY. S1 thesis, Universitas Pendidikan Indonesia.

Abstract

Penelitian ini membandingkan kinerja seismik struktur fixed-base dan base-isolated untuk Gedung Hotel KAI Boutique di Bandung, sebuah wilayah yang rawan gempa akibat sesar aktif seperti Sesar Lembang, Cimandiri, dan Baribis. Penelitian ini bertujuan untuk menganalisis perbedaan geser dasar (base shear), perpindahan (displacement), dan simpangan antar lantai (inter-story drift) antara kedua sistem struktur menggunakan analisis riwayat waktu (time history), serta mengevaluasi tingkat kinerja seismik berdasarkan pedoman ATC-40. Metodologi penelitian melibatkan pemodelan gedung hotel 11 lantai di ETABS v.18.1.0 dengan delapan skenario: model fixed-base dan base-isolated yang dianalisis dengan Spektrum Respons dan tiga catatan gempa Riwayat Waktu yang berbeda (Shallow Crustal, Benioff, dan Megathrust). Sistem isolasi dasar menggunakan High Damping Rubber Bearings (HDRB). Parameter utama yang dianalisis meliputi geser dasar, perpindahan, dan simpangan antar lantai. Hasil penelitian menunjukkan bahwa isolasi dasar secara signifikan mengurangi geser dasar. Sebagai contoh, dengan analisis Spektrum Respons, geser dasar berkurang sebesar 54,5% pada arah X dan 56,3% pada arah Y dibandingkan dengan sistem fixed-base. Reduksi serupa juga diamati pada semua analisis riwayat waktu (Shallow Crustal: 53,6% X, 53,7% Y; Miyagi: 53,6% X, 53,7% Y; Concepción: 53,7% X, 53,7% Y). Base isolasi ini secara efektif mengurangi simpangan antar lantai rata-rata 68% pada arah X dan 73% pada arah Y untuk analisis Spektrum Respons. Berdasarkan ATC-40, baik struktur fixed-base maupun base-isolated mencapai tingkat kinerja "Immediate Occupancy (IO)" di semua analisis, menunjukkan kerusakan struktural dan non-struktural yang minimal, memungkinkan bangunan tetap berfungsi setelah gempa. This study compares the seismic performance of fixed-base and base-isolated structures for the KAI Boutique Hotel building in Bandung, an earthquake-prone area influenced by active faults such as the Lembang, Cimandiri, and Baribis Faults. The objective of this research is to analyze the differences in base shear, displacement, and inter-story drift between the two structural systems using time history analysis, as well as to evaluate the seismic performance level based on the ATC-40 guidelines. The methodology involves modeling an 11-story hotel building in ETABS v.18.1.0 with eight scenarios: fixed-base and base-isolated models analyzed using the Response Spectrum method and three different Time History earthquake records (Shallow Crustal, Benioff, and Megathrust). The base isolation system uses High Damping Rubber Bearings (HDRB). Key parameters analyzed include base shear, displacement, and inter-story drift. The results show that base isolation significantly reduces base shear. For example, under the Response Spectrum analysis, base shear is reduced by 54.5% in the X direction and 56.3% in the Y direction compared to the fixed-base system. Similar reductions are observed in all time history analyses (Shallow Crustal: 53.6% X, 53.7% Y; Miyagi: 53.6% X, 53.7% Y; Concepción: 53.7% X, 53.7% Y). The base isolation system also effectively reduces inter-story drift by an average of 68% in the X direction and 73% in the Y direction under the Response Spectrum analysis. Based on ATC-40, both the fixed-base and base-isolated structures achieve the “Immediate Occupancy (IO)” performance level across all analyses, indicating minimal structural and non-structural damage, allowing the building to remain functional after an earthquake.

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Item Type:	Thesis (S1)
Additional Information:	https://scholar.google.com/citations?view_op=list_works&hl=en&user=-OXL2KMAAAAJ ID SINTA Dosen Pembimbing: Istiqomah: 6000414 Nanang Dalil Herman: 6040771
Uncontrolled Keywords:	Kinerja Struktur, Metode Time History, Base isolation Performance Structure, Time History Method, Base Isolation
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction
Divisions:	Fakultas Pendidikan Teknik dan Industri > Jurusan Pendidikan Teknik Sipil > Program Studi Teknik Sipil
Depositing User:	Angga Grecia
Date Deposited:	15 Dec 2025 06:13
Last Modified:	15 Dec 2025 06:13
URI:	http://repository.upi.edu/id/eprint/145404

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