Noerhamidy, Thaliah Luthfitawati (2020) Alternatif Penggunaan Seismic Base Isolation High Damping Rubber Bearing (HDRB) Pada Struktur Gedung Pasca Sarjana IV Universitas Muhammadiyah Malang (UMM). Diploma thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Gedung Pasca Sarjana IV Universitas Muhammadiyah Malang (UMM) merupakan gedung beton bertulang 10 lantai degan struktur dual system yaitu Sistem Rangka Pemikul Momen Khusus (SRPMK) dan shear wall. Pada analisa Proyek Akhir ini, dilakukan perencanaan ulang menggunakan sistem isolasi dasar High Damping Rubber Bearing (HDRB) dengan Sistem Rangka Pemikul Momen Biasa (SRPMB). Hal ini bertujuan untuk mengetahui respon bangunan terhadap beban gempa yang lebih besar. Penggunaan HDRB dapat mereduksi beban gempa pada bangunan, sehingga cocok digunakan pada daerah dengan kelas situs gempa SD-SF. Jenis sistem isolasi ini memiliki penurunan transisi kekakuan yang lebih halus dan nilai kemampuan redaman yang lebih tinggi dibandingka dengan jenis lainnya. Perencanaan dilakukan melalui 4 tahap permodelan struktur, yaitu tahap 1 permodelan kondisi eksisting bangunan SRPMK dengan shear wall, tahap 2 permodelan SRPMB dengan shear wall, tahap 3 permodelan SRPMB dan tahap 4 permodelan SRPMB dengan HDRB. Pada permodelan tahap 1 hingga 3 diberikan pembebanan gempa respons spektrum. Namun pada permodelan tahap 4 diberikan pembebanan gempa respons spektrum komposit akibat penggunaan sistem isolasi dasar. Hasil dari keempat permodelan tersebut dilakukan analisa kontrol struktur sesuai standar perencanaan. Dikarenakan tujuan Proyek Akhir untuk mengetahui pengaruh HDRB terhadap beban gempa yang tinggi (SRPMB nilai R=3), maka pada permodelan tahap 3 dan tahap 4 dilakukan perbandingan output gaya dalam untuk mengetahui reduksi yang terjadi. Tahap selanjutnya melakukan perhitungan struktur atas dan struktur bawah yang akan dijelaskan pada penggambaran teknik. Proyek Akhir ini mendapatkan hasil bahwa dengan penggunaan High Damping Rubber Bearing (HDRB) dapat mereduksi gaya geser dasar bangunan arah X mencapai 68,14% dan arah Y mencapai 69,94%. Berdasarkan hasil analisa rasio gaya dalam, terdapat reduksi gaya aksial sebesar 55,5%, gaya geser sebesar 34,6%, gaya torsi sebesar 27,9%, dan momen sebesar 40% pada elemen struktur utama. Sedangkan hasil perhitungan kebutuhan tulangan struktur eksisting maupun struktur isolasi dasar HDRB Gedung Pasca Sarjana IV UMM, menunjukkan bahwa terdapat reduksi tulangan balok sebesar 24,39% dan tulangan kolom sebesar 36,38%. Maka perencanaan Gedung Pasca Sarjana IV Universitas Muhammadiyah Malang (UMM) menjadi lebih efisien dan tahan terhadap beban gempa yang tinggi.
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Pasca Sarjana IV University of Muhammadiyah Malang (UMM) is a 10 story reinforced concrete building with dual system structure, namely the Special Moment Resisting Frame System (SRPMK) and shear wall. In this Final Project, re-planning is done using a basic High Damping Rubber Bearing (HDRB) isolation system with an Ordinary Moment Resisting Frame System (SRPMB). It aims to determine the response of buildings to a greater earthquake load. The use of HDRB can reduce earthquake loads in buildings, making it suitable for use in areas with SD-SF earthquake site classes. This type of isolation system has a more decrease in stiffness transition and a higher damping capability value compared to other types. Planning is carried out through 4 step of structural modeling, step 1 modeling the existing condition of SRPMK buildings with shear walls, step 2 modeling SRPMB with shear walls, step 3 modeling SRPMB and step 4 modeling SRPMB with HDRB. In the modeling step 1 to 3 earthquake load response is given. However, in step 4 modeling, earthquake load response of composite spectrum is given due to the use of a basic isolation system. The results of the fourth modeling analyzes of the control structure in accordance with planning standards. Because of the goal of Final Project is to determine the effect of HDRB on high earthquake loads (SRPMB value of R = 3), the modeling of step 3 and step 4 compares the internal force output to determine the reduction. The next step is to calculate the structure of the upper and lower structure which will be explained in the description of the technique. This Final Project gets the result that with the use of High Damping Rubber Bearings (HDRB) can reduce the basic shear force of the building X direction reaches 68.14% and Y direction reaches 69.94%. Based on the analysis of internal force ratios, there is reduction in axial force of 55.5%, shear force of 34.6%, torque of 27.9%, and moments of 40% on the main structural elements. While the results of the calculation of the need for reinforcement of the existing structure and the basic insulation structure of the HDRB Pasca Sarjana IV UMM Building, showed that there was a reduction in beam reinforcement by 24.39% and column reinforcement by 36.38%. So the planning of the Pasca Sarjana IV of University of Muhammadiyah Malang (UMM) becomes more efficient and resistant to high earthquake loads.
| Item Type: | Thesis (Diploma) |
|---|---|
| Additional Information: | RSIS 624.177 25 Noe a-1 2020 |
| Uncontrolled Keywords: | Dual System, Seismic Isolation, HDRB, SRPMB, SRPMK |
| Subjects: | T Technology > TH Building construction > TH1095 Earthquakes and building T Technology > TH Building construction > TH3000 Basements--Remodeling. T Technology > TH Building construction > TH3351 Maintenance and repair T Technology > TH Building construction > TH880 Sustainable buildings. Sustainable construction. Green building T Technology > TH Building construction > TH900+ Construction equipment in building construction |
| Divisions: | Faculty of Civil Engineering and Planning > Civil Engineering > 22301-(D4) Diploma 4 |
| Depositing User: | Thaliah Luthfitawati Noerhamidy |
| Date Deposited: | 02 Jan 2025 07:39 |
| Last Modified: | 02 Jan 2025 07:39 |
| URI: | http://repository.its.ac.id/id/eprint/74350 |
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