Putri, Dina Permatasari (2026) Pengaruh Soil-Structure Interaction (SSI) terhadap Performa Bangunan Bersejarah dengan Pondasi Dangkal dalam Studi Kasus Candi Siwa Prambanan. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Candi Siwa Prambanan merupakan bangunan bersejarah yang memiliki kerentanan tinggi terhadap gempa bumi karena konstruksinya yang tidak dirancang berdasarkan prinsip ketahanan seismik modern serta menggunakan pondasi dangkal. Penelitian ini bertujuan untuk mengevaluasi pengaruh Soil-Structure Interaction (SSI) terhadap kinerja seismik struktur candi menggunakan pemodelan numerik berbasis metode elemen hingga dengan perangkat lunak ABAQUS dengan pendekatan analisis dinamik direct method. Material masonry dimodelkan menggunakan pendekatan macromodelling homogen isotropik dengan model fondasi yang tertanam sebagian dalam domain tanah. Tiga model dianalisis, yaitu model pra-restorasi fixed-base, model pasca-restorasi fixed-base, serta model pasca-restorasi dengan mempertimbangkan SSI. Validasi dilakukan dengan membandingkan eigen value struktur dari penelitian terdahulu. Analisis time history menggunakan tiga mekanisme sumber gempa (sesar dangkal, benioff, dan megathrust) dengan periode ulang 250 dan 1000 tahun berdasarkan kondisi seismik Kabupaten Sleman. Hasil analisis menunjukkan bahwa restorasi mempengaruhi respons dinamik struktur dengan meningkatkan massa dan kekakuan sistem. Peningkatan intensitas gempa secara konsisten meningkatkan seluruh respons struktur. Penerapan SSI terbukti memberikan pengaruh signifikan terhadap respons dinamik dengan meningkatkan deformasi, memperpanjang periode alami struktur, serta mengubah distribusi gaya inersia. Perbandingan antara analisis linier dan nonlinier menunjukkan bahwa kedua pendekatan menghasilkan tren yang relatif serupa untuk respons global struktur, namun memberikan perbedaan yang signifikan pada respons lokal. Analisis nonlinier mampu merepresentasikan retak, redistribusi tegangan, dan degradasi kekakuan material secara lebih stabil dan realistis dibandingkan analisis linier. Berdasarkan hasil penelitian, strategi mitigasi yang direkomendasikan meliputi perbaikan material masonry melalui grout injection, penguatan elemen menggunakan FRP dan NSM bars, serta pemasangan steel anchored rods, dengan tetap mempertimbangkan prinsip minimal invasif dan mempertahankan nilai historis bangunan
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The Shiva Temple of Prambanan is a historic structure that is highly vulnerable to earthquakes due to its construction which was not designed according to modern seismic design principles and relies on shallow foundations. This study aims to evaluate the influence of Soil-Structure Interaction (SSI) on the seismic performance of the temple using numerical modelling based on the finite element method implemented in ABAQUS with a direct dynamic analysis method. The masonry material is represented using a homogeneous isotropic macromodelling approach, with the foundation partially embedded in a soil domain. Three structural models were analyzed: a pre-restoration fixed-base model, a post-restoration fixed-base model, and a post-restoration model considering SSI. Model validation was conducted by comparing the structural eigenvalues with previous studies. Time history analyses were performed using three earthquake source mechanisms (shallow crustal, benioff, and megathrust) with return periods of 250 years and 1000 years, based on the seismic conditions of Sleman Regency. The results indicate that the restoration significantly affects the dynamic response of the structure by increasing both the mass and stiffness of the system. An increase in earthquake intensity consistently leads to higher structural responses across all parameters. The implementation of SSI was found to have a significant influence on the dynamic behavior of the temple, resulting in increased deformation, prolonged natural periods, and altered inertia force distribution within the soil-structure system. A comparison between linear and nonlinear analysis shows that both approaches produce relatively similar trends in terms of global structural response, however, substantially differences are observed in local responses. Nonlinear analysis is capable of representing cracking, stress distribution, and stiffness degradation more realistically and stably that linear analysis. Based on the findings, several mitigation strategies are recommended, including masonry material repair through grout injection, strengthening structural elements using FRP and NSM bars, and installing steel anchored rods. while maintaining minimal intervention and preserving the historical value of the structure.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | ABAQUS, Analisis Respons Dinamik, Masonry, Soil-Structure Interaction (SSI), ABAQUS, Dynamic Response Analysis, Masonry, Soil-Structure Interaction (SSI) |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis |
| Depositing User: | Dina Permatasari Putri |
| Date Deposited: | 27 Jul 2026 08:15 |
| Last Modified: | 27 Jul 2026 08:15 |
| URI: | http://repository.its.ac.id/id/eprint/137946 |
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