Al Anshori, Moh. Irfan (2024) Analisis Perilaku Concrete Filled Double Skin Steel Tubes (CFDSTs) Akibat Beban Siklik Dengan Metode Elemen Hingga. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Concrete Filled Double Skin Steel Tubes (CFDSTs) merupakan struktur komposit yang memanfaatkan penampang baja ganda yang diisi beton. CFDSTs sudah banyak digunakan dalam konstruksi bangunan modern karena memiliki kinerja struktural yang baik dikarenakan bagian berongga penampang baja berfungsi sebagai tulangan dan bekisting untuk beton, sedangkan beton sendiri berfungsi untuk menghilangkan atau menunda tekuk lokal pada bagian berongga penampang baja serta meningkatkan daktilitas penampang secara signifikan. Beberapa contoh tipe struktur komposit Concrete Filled Double Skin Steel Tubes (CFDSTs) yaitu Circular Hollow Section (CHS) dan Square Hollow Section (SHS). CFDST sendiri mempunyai keuntungan dibandingkan dengan struktur komposit tabung baja yang terisi penuh beton yaitu peningkatan modulus penampang, peningkatan stabilitas, bobot yang lebih ringan, karakteristik redaman yang lebih baik dan kinerja siklik yang lebih baik.
Penelitian ini menganalisis struktur komposit Concrete Filled Double Skin Steel Tubes (CFDSTs) dengan dua kombinasi, yaitu Circular Hollow Section (CHS) dengan Square Hollow Section (SHS) dengan variasi disetiap jenisnya. Proses analisis dilakukan dengan melakukan permodelan dengan finite element method menggunakan software Abaqus CAE dengan serangkaian test siklik pada struktur kolom dengan hasil pengujian berupa; diagram kurva histeresis, kapasitas gaya geser, dan disipasi energi. Hasil analisis model CFDSTs menunjukan bahwa tipe SHS dapat menyerap gaya lebih besar dibandingkan tipe CHS dengan selisih nilai Reaction Force atau kapasitas gaya geser rata-rata sebesar 20,24%. Nilai kapasitas gaya geser ada keterkaitan dengan performa disipasi energi, sehingga model CFDSTs dengan tipe SHS memiliki nilai disipasi energi lebih besar dibandingkan tipe CHS. Hasil penelitian ini menunjukan bahwa struktur komposit model CFDSTs dengan tipe SHS lebih direkommendasikan dibandingankan dengan tipe CHS dikarenakan pertimbangan perbandingan performa yang menunjukan tipe SHS lebih unggul dalam segi kapasitas gaya geser dan mendisipasi energi.
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Concrete Filled Double Skin Steel Tubes (CFDSTs) are composite structures that utilize concrete-filled double-section steel tubes. CFDSTs have been widely used in modern building construction due to their good structural performance as the hollow section of the steel section serves as reinforcement and formwork for the concrete, while the concrete itself serves to eliminate or delay local buckling in the hollow section of the steel section and significantly increase the ductility of the section. Some examples of Concrete Filled Double Skin Steel Tubes (CFDSTs) composite structures are Circular Hollow Section (CHS) and Square Hollow Section (SHS). CFDST itself has the advantages over concrete-filled steel tube composite structures of increased cross-sectional modulus, improved stability, lighter weight, better damping characteristics and better cyclic performance.
This research analyses the composite structure of Concrete Filled Double Skin Steel Tubes (CFDSTs) with two combinations, namely Circular Hollow Section (CHS) and Square Hollow Section (SHS) with variations in each type. The analysis process is carried out by modelling with the finite element method using Abaqus CAE software with a series of cyclic tests on the column structure with test results in the form of hysteresis curve diagram, shear force capacity and energy dissipation. The CFDSTs model analysis results show that the SHS type can absorb more force than the CHS type with a difference of 20.24% in the average Reaction Force or shear capacity value. The shear force capacity value is related to the energy dissipation performance, so the CFDSTs model with the SHS type has a greater energy dissipation value than the CHS type. The results of this study indicate that the CFDSTs model composite structure with SHS type is more recommended than CHS type due to the consideration of performance comparison which shows SHS type is superior in terms of shear force capacity and energy dissipation.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Struktur Komposit, Concrete Filled Double Skin Steel Tubes (CFDSTs), Gempa, Beban Siklik, Hollow Sections, Metode Elemen Hingga, ABAQUS, Composite Structure, Concrete Filled Double Skin Steel Tubes (CFDSTs), Earthquake, Cyclic Load, Hollow Sections, Finite Element Method, ABAQUS |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA169.5 Failure analysis T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis |
| Depositing User: | MOH. IRFAN AL ANSHORI |
| Date Deposited: | 15 Feb 2024 03:15 |
| Last Modified: | 15 Feb 2024 03:15 |
| URI: | http://repository.its.ac.id/id/eprint/106659 |
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