Evaluasi Kinerja Dan Rehabilitasi Struktur Gedung Rumah Sakit Di Jakarta Menggunakan Tuned Mass Damper Berdasar SNI 9273:2025

Azhim, Muhammad Naafi' Abdul (2026) Evaluasi Kinerja Dan Rehabilitasi Struktur Gedung Rumah Sakit Di Jakarta Menggunakan Tuned Mass Damper Berdasar SNI 9273:2025. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5012221051-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (32MB) | Request a copy

Abstract

Pembaruan peta bahaya gempa nasional yang diadopsi dalam SNI 1726:2019 menyebabkan peningkatan tuntutan beban gempa rencana secara signifikan, termasuk di wilayah Jakarta. Kondisi ini berpotensi menurunkan margin keamanan bangunan eksisting, khususnya gedung rumah sakit yang tergolong Kategori Risiko IV dan diwajibkan tetap beroperasi pascagempa. Tugas Akhir ini mengevaluasi kinerja seismik dan merencanakan rehabilitasi struktur pada gedung rumah sakit beton bertulang 17 lantai di Jakarta Utara menggunakan sistem kontrol getaran pasif Tuned Mass Damper (TMD). Metodologi evaluasi dilakukan secara bertahap sesuai SNI 9273:2025 melalui prosedur Tier 1 (Screening), Tier 2 (Linear Analysis), dan Tier 3 (Nonlinear) menggunakan Nonlinear Time History Analysis (NLTHA) dengan 11 rekaman gempa yang telah melalui proses spectral matching terhadap target spektrum BSE-2E. Hasil evaluasi struktur eksisting menunjukkan adanya defisiensi kapasitas pada elemen balok, kolom (rasio PMM), dan kontrol lentur dinding geser dengan status "NOT OK". Selain itu, karakteristik dinamik menunjukkan Mode 2 didominasi oleh perilaku rotasi, yang mengindikasikan kondisi struktur kurang ideal. Rehabilitasi direncanakan dengan optimasi parameter TMD metode Sadek dkk. (1997) menggunakan variasi rasio massa 5% dan 7% yang ditempatkan pada lantai atap dan lantai 8. Hasil penelitian menunjukkan bahwa penambahan TMD massa 7% pada lantai atap memberikan performa terbaik dengan mengubah mode getar ke-2 dari rotasi menjadi translasi arah sumbu X. Implementasi TMD dengan rasio massa 7% di lantai atap efektif mereduksi gaya geser dasar rata-rata hingga 35,5% pada sumbu Y dan menurunkan percepatan lantai atap hingga 41,77%. Secara signifikan, konfigurasi TMD 7% di atap berhasil memenuhi syarat story drift ratio untuk target kinerja Life Safety (LS) dengan rasio simpangan antar lantai yang tidak melebihi batas 2%, sementara struktur eksisting dan variasi TMD lain tidak mampu memenuhinya. Meskipun TMD efektif mereduksi kerusakan, hasil NLTHA menunjukkan adanya beberapa elemen struktur masih berada pada level Collapse Prevention (CP), sehingga dilakukan perkuatan lokal berupa concrete jacketing pada elemen yang pada level Collapse Prevention (CP). Setelah dilakukan concrete jacketing dan NLTHA, diperoleh bahwa struktur eksisting telah memenuhi target kinerja Life Safety (LS).
=================================================================================================================================
The update to the national seismic hazard map adopted in SNI 1726:2019 has significantly increased the design earthquake load demand, including in the Jakarta region. This condition has the potential to reduce the safety margin of existing buildings, particularly Risk Category IV hospital buildings, which are required to remain operational after an earthquake. This final project evaluates the seismic performance and plans the structural rehabilitation of a 17-story reinforced concrete hospital building in North Jakarta using a Tuned Mass Damper (TMD) passive vibration control system. The evaluation methodology was carried out in stages in accordance with SNI 9273:2025, through the Tier 1 (Screening), Tier 2 (Linear Analysis), and Tier 3 (Nonlinear) procedures using Nonlinear Time History Analysis (NLTHA) with 11 ground motion records that had undergone spectral matching to the BSE-2E target spectrum. The evaluation results of the existing structure indicate capacity deficiencies in beam and column elements (PMM ratio), as well as a "NOT OK" status for the flexural control of the shear walls. In addition, the dynamic characteristics show that Mode 2 is dominated by rotational behavior, indicating a suboptimal structural condition. The rehabilitation was designed by optimizing TMD parameters using the Sadek et al. (1997) method, with mass ratio variations of 5% and 7%, placed at the roof and 8th floor. The results show that a 7% TMD mass ratio placed on the roof provides the best performance, changing the 2nd vibration mode from rotational to translational in the X-axis direction. Implementation of the 7% mass ratio TMD on the roof effectively reduces the average base shear force by up to 35.5% in the Y-axis and decreases the roof floor acceleration by up to 41.77%. Notably, the 7% TMD configuration on the roof is the only configuration that satisfies the story drift ratio requirement for the Life Safety (LS) performance target, with an inter-story drift ratio not exceeding the 2% limit, whereas the existing structure and other TMD variations fail to meet this criterion. Although the TMD effectively reduces damage, the NLTHA results show that several structural elements remain at the Collapse Prevention (CP) level, so local strengthening in the form of concrete jacketing was carried out on the elements at the Collapse Prevention (CP) level. After concrete jacketing and NLTHA were performed, it was found that the existing structure had met the Life Safety (LS) performance target.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Evaluasi Kinerja Seismik, Rehabilitasi Struktur, SNI 1726:2019, SNI 9273:2025 , Tuned Mass Damper, Nonlinear Time History Analysis, Seismic Performance Evaluation, Structural Rehabilitation.
Subjects:	T Technology > TH Building construction > TH1095 Earthquakes and building
Divisions:	Faculty of Civil Engineering and Planning > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User:	Muhammad Naafi' Abdul Azhim
Date Deposited:	29 Jul 2026 00:59
Last Modified:	29 Jul 2026 00:59
URI:	http://repository.its.ac.id/id/eprint/138800

Actions (login required)

View Item