Modifikasi Perencanaan Rumah Susun Pasar Rebo dengan Base Isolation Tipe Friction Pendulum System Pada Daerah Rawan Gempa

Akbari, Muhamad Fauzan (2021) Modifikasi Perencanaan Rumah Susun Pasar Rebo dengan Base Isolation Tipe Friction Pendulum System Pada Daerah Rawan Gempa. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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03111740000020_Undergraduate_Thesis.pdf - Accepted Version
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Abstract

Tingginya aktivitas seismik dan potensi gempa menuntut perencanaan struktur gedung dengan kinerja yang baik saat gempa terjadi. Tipe penahan gempa konvensional seperti sistem rangka pemikul momen dan shearwall pada struktur bangunan dapat menyebabkan kerusakan yang signifikan akibat adanya plastifikasi. Selain itu kekakuan struktur akan meningkatkan percepatan lantai sehingga dapat menyebabkan risiko kerusakan elemen non-struktural yang bisa bermasalah pada bangunan tertentu. Oleh karena itu diperlukan suatu sistem penahan gempa yang lebih efektif dalam mencegah dampak kerusakan tersebut.Salah satu strategi yang dikembangkan untuk mengurangi dampak kerusakan akibat gempa adalah base isolation. Konsep dasar base isolation yaitu memisahkan pergerakan struktur dari pergerakan horizontal tanah dengan memasang elemen fleksibel didasar bangunan sehingga gaya gempa yang masuk pada struktur tereduksi. Dalam tugas akhir ini akan dilakukan modifikasi perencanaan gedung Rumah Susun Pasar Rebo dengan menggunakan base isolation tipe friction pendulum system (FPS). Tahapan perencanaan meliputi preliminary design, pembebanan, perencanaan struktur sekunder, permodelan struktur fixed base, analisa struktur dan kontrol desain fixed base, perencanaan base isolator, permodelan struktur terisolasi, analisa struktur terisolasi dan kontrol desain, perencaan struktur primer, perencanaan pondasi, penggambaran hasil perencanaan. Perencanaan tersebut mengacu beberapa peraturan yaitu SNI 2847:2019, SNI 1726:2019, SNI 1727:2020, PPIUG 1983 dan peraturan lainnya. Dari analisis dan perhitungan struktur base isolation memiliki periode 3,17 kali lebih besar dari periode struktur fixed based. Struktur base isolation memiliki gaya geser dasar yang lebih kecil dari struktur fixed based yang menggunakan sistem SRPMM (R=5), SRPMB (R=3), SRPMB (R=2) dengan selisih masing-masing sebesar 6,23% , 43,4%, dan 62,49%. Akan tetapi struktur base isolation memiliki gaya geser yang lebih besar dari struktur SRPMK dengan selisih sebesar 50,03%. Struktur dengan base isolation memiliki perpindahan atap yang lebih besar dari struktur fixed based. Penggunaan base isolation pada struktur mereduksi drift rasio dengan selisih rata- rata 68,2% diarah X dan 47,35% diarah Y. Hasil perencanaan elemen struktur : tebal pelat lantai terbesar 13cm, dimensi balok anak 25x40cm, dimensi balok induk terbesar 45x70cm, dimensi kolom terbesar 60x80cm, dan pondasi direncanakan dengan spun pile 40x40 dan D60 dengan kedalaman masing-masing 14 dan 11m. Friction pendulum yang digunakan pada gedung ini ada dua tipe yaitu SIP-D-HF-325 (5000) dan SIP-D-HF-326 (5000) yang merupakan produk dari Maurer. ===================================================================================================== The high seismic activity and the potential for earthquakes require the planning of building structures with good performance when an earthquake occurs. Conventional earthquake resisting types such as moment resisting frame systems and shearwalls in building structures can cause significant damage due to plastification. In addition, the stiffness of the structure will increase the acceleration of the floor so that can cause the risk of damage to non-structural elements that can experience problems in certain buildings. Therefore, we need an earthquake-resistant system that can reduce the impact of the damage. One of the strategies developed to reduce the impact of earthquake damage is base isolation. The basic concept of isolation is to separate the movement of the superstructure from the horizontal movement of the ground by installing flexible elements at the base of the building so that the seismic forces that enter the structure are reduced. In this final project, a modification planning of the Rumah Susun Pasar Rebo will be carried out using a base isolation type friction pendulum system (FPS). The planning stages include preliminary design, loading, secondary structure, fixed base structure modeling, analysis and design of fixed base design, base isolator planning, structural control modeling, structural planning analysis and design control, primary structure planning, foundation planning, drawing of planning results. The design refers to several regulations, namely SNI 2847:2019, SNI 1726:2019, SNI 1727:2020, PPIUG 1983 and other literature. From the analysis and calculation the base isolation structure has a period of 3,17 times greater than the period of the fixed-based structure. The base isolation structure has a base shear force that is smaller than the fixed based structure using the SRPMM (R=5), SRPMB (R=3), SRPMB (R=2) system with a difference of 6.23%, 43, 4%, and 62,49%. However, the base isolation structure has a shear force that is greater than the SRPMK structure with a difference of 50,03%. Structures with base isolation have a higher roof displacement than fixed based structures. The use of base isolation in the structure reduces the drift ratio difference by an average of 68,2% in the X direction and 47,35% in the Y direction. The results of the structural element planning: the largest floor slab thickness is 13cm, the dimensions of the sub-beams are 25x40cm, the largest main beam dimensions are 45x70cm, the largest column dimensions is 60x80cm, and planned with D40 and D60 spun piles with a depth of 14m and 11m. There are two types of friction pendulum used in this building, namely SIP-D-HF-325 (5000) and SIP-D-HF-326 (5000) which are products from Maurer.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Earthquake, Friction Pendulum System, Base Isolation, Structural Damage, Earthquake Resistant Structure. Gempa, Friction Pendulum System, Base Isolation, Kerusakan Struktur, Struktur Tahan Gempa.
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA658 Structural design
T Technology > TH Building construction > TH1095 Earthquakes and building
T Technology > TH Building construction > TH9745.D85 Dwellings
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User: Muhamad Fauzan Akbari
Date Deposited: 30 Jul 2021 07:28
Last Modified: 30 Jul 2021 07:28
URI: https://repository.its.ac.id/id/eprint/84602

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