Ramadhan, Anugrah Bagus (2015) Studi Perilaku Struktur Baja Dengan Menggunakan Sistem MRF Dan SCMRF. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sistem struktur tahan gempa yang baru dan saat ini sedang dikembangkan yaitu Sistem Self Centering dengan perilaku gap opening mendisipasi energi tanpa deformasi inelastis dan kerusakan yang berarti pada struktur utamanya.Energi pemulihnya elastis yang diberikan srand baja pasca-tarik mengembalikan struktur keposisinya
semula setelah gempa.
Tujuan dari Tugas Akhir ini difokuskan untuk Menganalisa struktur dengan menggunakan sistem Moment Resisting Frame (MRF) dan Self Centering Moment Resisting Frame (SCMRF) dengan penggunaan pratekan pada kolomnya. Untuk menganalisa kelayakan struktur SC-MRF maka akan dilakukan pemodelan portal satu tingkat dan satu bentang MRF dan SCMRF dengan bantuan software finite
element analysis. Dari hasil analisa struktur portal MRF dan SCMRF ditarik kesimpulan sebagai berikut: Sistem MRF
dan SCMRF mengembangkan daktilitasnya dengan cara melakukan deformasi inelastik yang cukup besar tanpa kehilangan kekuatannya melalui mekanisme lentur (flexural mechanism). Pada sistem SCMRF digunakan baja pratekan pada kolomnya yang berfungsi sebagai penstabil gaya bila terjadi gempa arah horisontal supaya simpangan
bangunan akan kembali ke titik awal sehingga tidak ada
out of plane deformation. Struktur MRF lebih daktail di bandingkan dengan struktur SCMRF hal ini ditunjukkan dengan disipasi energi MRF yang lebih besar di bandingkan disipasi energi SCMRF. Struktur MRF menghasilkan out of plane deformation yang cukup besar sedangkan
SCMRF menghasilkan deformasi yang relatif kembali ke posisi originalnya sehingga struktur sekunder relatif tidak mengalami kerusakan di bandingkan MRF ketika gempa sudah berhenti. ========== System new earthquake resistant structure and is currently being developed, namely Self Centering System with behavioral gap opening dissipate energy without inelastic deformation and damage to the main structure, which means the return of elastic energy is given post-tensile steel strand to restore the structure to its original position after the earthquake. The purpose of this final project is focused on analyzing the structure by using a system of Moment Resisting Frame (MRF) and Self Centering Moment Resisting Frame (SCMRF) with the use of prestressed on the column. To analyze the feasibility of the structure of the SC-MRF modeling portal will be one level and one span MRF and SCMRF with the help of finite element analysis software.
From the analysis of the structure of the portal MRF and SCMRF be deduced as follows: MRF system and SCMRF develop ductility by means of a fairly large inelastic
deformation without losing its strength through the mechanism of bending (flexural mechanism). In SCMRF system used in prestressed steel column which serves as a stabilizing force in the event of an earthquake horizontal direction so that the deviation of the building will be returned to the starting point so that there is no out-of-plane deformation. MRF structure is
more ductile compared with SCMRF structure as shown by the
energy dissipation for greater MRF compare SCMRF energy dissipation. MRF structure out of plane deformation produces sizeable while SCMRF relative deformation back to the original position so that the secondary structure relatively no damage in comparison to the MRF when the earthquake has stopped.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Moment Resisting Frame; Self Centering Moment Resisting Frame; disipasi energi; daktilitas |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) T Technology > TA Engineering (General). Civil engineering (General) > TA681 Concrete construction |
| Divisions: | Faculty of Civil Engineering and Planning > Civil Engineering > 22201-(S1) Undergraduate Thesis |
| Depositing User: | - Davi Wah |
| Date Deposited: | 21 Jun 2018 06:38 |
| Last Modified: | 21 Jun 2018 06:38 |
| URI: | http://repository.its.ac.id/id/eprint/52015 |
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