Analisis Perilaku Dan Pemodelan Balok Beton Bertulang Akibat Beban Benturan Menggunakan Metode Elemen Hingga

Stevanus, Stevanus (2026) Analisis Perilaku Dan Pemodelan Balok Beton Bertulang Akibat Beban Benturan Menggunakan Metode Elemen Hingga. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5012221020_Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (5MB) | Request a copy

Abstract

Balok beton bertulang berpotensi mengalami pembebanan dinamis ekstrem, seperti beban tumbukan, yang bekerja dalam waktu singkat dengan intensitas tinggi dan dapat menyebabkan kerusakan serius. Penelitian ini bertujuan untuk menganalisis perilaku non-linear balok beton bertulang akibat beban tumbukan menggunakan metode elemen hingga berbasis perangkat lunak ABAQUS serta mengevaluasi kesesuaian hasil simulasi dengan data eksperimen. Analisis dilakukan pada balok beton normal berdimensi 410 mm × 250 mm × 4880 mm. Beton dimodelkan menggunakan pendekatan Concrete Damage Plasticity, sedangkan tulangan baja dimodelkan sebagai material elastis–plastis. Parameter yang dikaji meliputi mode kegagalan, respons dinamis berupa lendutan tengah bentang dan regangan tulangan, gaya reaksi perletakan, serta keseimbangan energi sistem. Hasil penelitian menunjukkan bahwa balok beton bertulang yang dikenai beban tumbukan didominasi oleh kegagalan geser, yang diawali dengan terbentuknya shear plug, diikuti scabbing pada sisi berlawanan, serta perkembangan retak geser diagonal menuju tumpuan. Respons dinamis ditandai oleh peningkatan cepat perpindahan dan regangan pada fase awal tumbukan, kemudian diikuti getaran teredam dengan adanya deformasi residual.Evaluasi simulasi menunjukkan bahwa ABAQUS mampu merepresentasikan respons global struktur dengan baik. Deviasi gaya reaksi maksimum tumpuan terhadap hasil eksperimen berada di bawah 10% dan analisis energi menunjukkan sistem numerik stabil. Regangan maksimum tulangan utama hasil simulasi memiliki kesesuaian yang baik dengan data eksperimen, meskipun masih terdapat perbedaan pada prediksi regangan plastis sisa. Secara keseluruhan, ABAQUS dinilai andal untuk analisis balok beton bertulang akibat beban tumbukan.
===================================================================================================================================
Reinforced concrete beams are susceptible to extreme dynamic loading, such as impact loads, which act over a very short duration with high intensity and can lead to severe damage. This study aims to analyze the nonlinear behavior of reinforced concrete beams subjected to impact loading using the finite element method implemented in ABAQUS software and to evaluate the agreement between simulation results and experimental data. The analysis was conducted on a normal-strength reinforced concrete beam with dimensions of 410 mm × 250 mm × 4880 mm. Concrete was modeled using the Concrete Damage Plasticity approach, while the reinforcing steel was modeled as an elastic–plastic material. The investigated parameters include failure modes, dynamic responses in terms of midspan deflection and reinforcement strain, support reaction forces, and system energy balance. The results indicate that reinforced concrete beams subjected to impact loading are dominated by shear failure, initiated by the formation of a shear plug, followed by scabbing on the opposite face, and the development of diagonal shear cracks propagating toward the supports. The dynamic response is characterized by a rapid increase in displacement and strain during the initial impact phase, followed by damped vibrations with the presence of residual deformation. Evaluation of the simulations shows that ABAQUS is capable of accurately representing the global structural response. The deviation of the maximum support reaction force from experimental results is below 10%, and the energy analysis confirms that the numerical system is stable. The maximum strain in the main reinforcement obtained from the simulation shows good agreement with experimental data, although discrepancies remain in the prediction of residual plastic strain. Overall, ABAQUS is considered reliable for analyzing reinforced concrete beams subjected to impact loading.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Beton Bertulang, Beban benturan, Finite element method, ABAQUS.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA444 Reinforced concrete
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User:	Stevanus Stevanus
Date Deposited:	29 Jan 2026 03:42
Last Modified:	29 Jan 2026 03:42
URI:	http://repository.its.ac.id/id/eprint/130930

Actions (login required)

View Item