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Behaviour of Rectangular Concrete Filled Tubes and Circular Concrete Filled Tubes under Axial Load Casita, Cintantya Budi; Sarassantika, I Putu Ellsa; Sulaksitaningrum, Roro
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.868

This paper presents the result behavior of two different type of Concrete Filled Tubes: Rectangular Concrete Filled Tubes (RCFT) and Circular Concrete Filled Tubes (CCFT). In this model, the column end is fixed and the axial load, Paxial, are applied to the column end. The amount of axial load is divided into 5 steps, which increasing continuously. The dimension of the column is 300x300x10 for RCFT and 300x10 for CCFT. As the results, stress distribution, load-deformation curve, load-stress curve, and weight calculation are compared. And it shows that the CCFT gives better performance than the RCFT.

The Importance of Awareness of Heritage Building's Seismic Behaviors : Specific on Pagoda-Type Structure I. P. Ellsa Sarassantika; Ida Bagus Gede Parama Putra
Journal of Infrastructure & Facility Asset Management Vol 2, No 1 (2020): Journal of Infrastructure & Facility Asset Management
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

The importance of building cultural heritage. A place where historical stories, cultural values, places of worship, symbols of struggle and even now are transformed into tourist attractions and educational facilities. Keeping this building good and well maintained is a good thing to do. The purpose of this paper is to enhance awareness of the importance of knowledge about heritage buildings from the viewpoint of building structure and seismicity. In addition, as a research initiation on the performance of the existing pagoda structure in Bali, Meru, going forward. This paper reviews several studies of pagodas in numerous countries, both in terms of structural design, influence and structure on earthquake response, damage, and handling in terms of reinforcement and maintenance. Comprehensively summarizes the studies that have been done, this facilitates understanding of existing studies. With the hope of being able, to trigger and encourage studies on building cultural heritage in Indonesia in general and Bali in particular. Research on the pagoda in Bali in the future is highly expected and needs to be done.

Behaviour of Rectangular Concrete Filled Tubes and Circular Concrete Filled Tubes under Axial Load Cintantya Budi Casita; I Putu Ellsa Sarassantika; Roro Sulaksitaningrum
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 1 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i1.868

This paper presents the result behavior of two different type of Concrete Filled Tubes: Rectangular Concrete Filled Tubes (RCFT) and Circular Concrete Filled Tubes (CCFT). In this model, the column end is fixed and the axial load, Paxial, are applied to the column end. The amount of axial load is divided into 5 steps, which increasing continuously. The dimension of the column is 300x300x10 for RCFT and 300x10 for CCFT. As the results, stress distribution, load-deformation curve, load-stress curve, and weight calculation are compared. And it shows that the CCFT gives better performance than the RCFT.

Analisis Kerusakan Struktur Bangunan dan Manajemen Bencana Akibat Gempa Bumi, Tsunami, dan Likuifaksi di Palu Sudarno P Tampubolon; I Putu Ellsa Sarassantika; I Wayan Gede Suarjana
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 10 No 2 (2022): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Juli 2022)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v10i2.3263

The strong column-weak beam is a design concept that needs to be implemented and considered in the planning of building structures (high-rise and low-rise buildings). Generally, structural failure occurs at beam-column joints. Such failure occurred due to the lack of attention to good and correct design concepts. The detailing of reinforcement for columns, beams, and beam-column connections has not yet fully implemented the SNI-2847-2019 standard which results in the reinforcement cannot withstand the combination of tensile, compressive, and shear forces that occur during an earthquake. In addition, the incomplete design of strong column-weak beam in building planning causes the building to fail in the column structure when receiving axial forces. The purpose of this study was to analyze the structural damage and the disaster management system applied during the earthquake in Palu. The research is carried out by investigation/survey methods on the study area as well as checking and recording the data about damage condition of buildings and conducting a hammer test (non-destructive test) to get the strength value of the concrete. Testing result showed the compressive strength value of the f’c concrete used is 20 to 48 MPa. In addition, the details of stirrups reinforcement are also not fully understood about their function on beams and columns, which results in the installation of stirrup reinforcement does not meet the criteria for bending angles of 90˚, 135˚, 180˚ and the addition of tensile and compressive reinforcement lengths. The high potential for earthquake hazard causes Palu and its surroundings tend to have an earthquake risk. For this reason, it is necessary to implement disaster mitigation for Palu region, which aims to reduce the number of casualties when natural disasters occur, both human and property loses.

Analisis Kerusakan Struktur Bangunan dan Manajemen Bencana Akibat Gempa Bumi, Tsunami, dan Likuifaksi di Palu Sudarno P Tampubolon; I Putu Ellsa Sarassantika; I Wayan Gede Suarjana
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 10 No 2 (2022): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Juli 2022)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v10i2.3263

The strong column-weak beam is a design concept that needs to be implemented and considered in the planning of building structures (high-rise and low-rise buildings). Generally, structural failure occurs at beam-column joints. Such failure occurred due to the lack of attention to good and correct design concepts. The detailing of reinforcement for columns, beams, and beam-column connections has not yet fully implemented the SNI-2847-2019 standard which results in the reinforcement cannot withstand the combination of tensile, compressive, and shear forces that occur during an earthquake. In addition, the incomplete design of strong column-weak beam in building planning causes the building to fail in the column structure when receiving axial forces. The purpose of this study was to analyze the structural damage and the disaster management system applied during the earthquake in Palu. The research is carried out by investigation/survey methods on the study area as well as checking and recording the data about damage condition of buildings and conducting a hammer test (non-destructive test) to get the strength value of the concrete. Testing result showed the compressive strength value of the f’c concrete used is 20 to 48 MPa. In addition, the details of stirrups reinforcement are also not fully understood about their function on beams and columns, which results in the installation of stirrup reinforcement does not meet the criteria for bending angles of 90˚, 135˚, 180˚ and the addition of tensile and compressive reinforcement lengths. The high potential for earthquake hazard causes Palu and its surroundings tend to have an earthquake risk. For this reason, it is necessary to implement disaster mitigation for Palu region, which aims to reduce the number of casualties when natural disasters occur, both human and property loses.

ANALISA PERFORMA SEISMIC MERU (STRUKTUR BERTINGKAT PAGODA KHAS BALI): PRELIMINARY STUDY I Putu Ellsa Sarassantika; Ida Bagus Gede Parama Putra; Sudarno P Tampubolon; I Gede Dhana Putra Sanjaya
Jurnal Rekayasa Teknik Sipil dan Lingkungan - CENTECH Vol. 4 No. 1 (2023): Jurnal Rekayasa Teknik Sipil dan Lingkungan, APRIL ISSN 2722-0230 (Online)
Publisher : UKI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cen.v4i1.4817

The Meru, a multi-tiered Balinese pagoda in Bali, Indonesia, is investigated for its earthquake-resistant properties in this study. Despite the fact that its upper tier is made of timber frames and panels, and its lower tier is made of masonry walls, the Meru has not suffered significant earthquake damage since its construction in 1968. This paper investigates the Meru's architectural form, structural system, building materials, and dynamic responses to seismic activity. The study focuses on an eleven-tier Meru in the Ulun Danu Batur Temple Kintamani Region, Bali Province, and investigates earthquake resistance using a 2-D Finite Element model and Nonlinear time history dynamic analysis method. The results show that the Meru can withstand the maximum credible earthquake for 2500 years, and the Meru's natural periods and modes have been determined. This study is a preliminary investigation into predicting and monitoring the Meru structure's behavior during earthquakes. To further validate the analysis model, future research could include experimental analysis of both individual components and the overall structure.

KEEFEKTIFAN SISTEM STRUKTURAL PADA MERU DALAM MENGHADAPI GEMPA BUMI I Gede Dhana Putra Sanjaya; I Putu Ellsa Sarassantika; Putu Didik Sulistiana; Kadek Yonas Prameira Suwandi; I Gusti Ngurah Agung Eka Arya Tejadinata; I Made Nova Hartawan
Jurnal Rekayasa Teknik Sipil dan Lingkungan - CENTECH Vol. 4 No. 2 (2023): Jurnal Rekayasa Teknik Sipil dan Lingkungan, Oktober 2023 ISSN 2722-0230 (Onlin
Publisher : UKI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cen.v4i2.5317

Studi ini menganalisis sifat tahan gempa Meru, pagoda bertingkat di Bali, yang selama ini tetap utuh meskipun lapisan atasnya berbahan kayu dan lapisan dasarnya dilapisi dinding bata. Penelitian ini meliputi bentuk arsitektur, sistem struktur, bahan bangunan, respons dinamis, dan dampak beban angin terhadap Meru dalam menghadapi aktivitas seismik. Dengan menggunakan model Elemen Hingga 2-D dan analisis dinamika sejarah waktu non linier, Meru tingkat sebelas di Kawasan Pura Ulun Danu Batur Kintamani, Bali, dipelajari dalam konteks ketahanan gempa dan pengaruh beban angin. Studi ini mengungkap bahwa Meru mampu menghadapi gempa maksimum dengan tingkat kepercayaan untuk periode ulang 2500 tahun, sambil mengidentifikasi periode alami dan mode getar struktur. Dengan mempertimbangkan pula pengaruh beban angin, penelitian ini memberikan wawasan awal mengenai perilaku Meru dalam situasi gempa dan kondisi lingkungan yang lebih luas. Penelitian selanjutnya dapat melibatkan eksperimen untuk mengonfirmasi temuan ini, termasuk analisis komponen individu dan struktur secara keseluruhan.

Peran Pivot Hooks dalam Peningkatan Kapasitas Lentur pada Balok Beton Bertulang Bambu Ummati, Alfinna Mahya; Michael, Michael; Sarassantika, I Putu Ellsa; Fanna, Gibral Tariq; Syuhada, Syahidus; Bayzoni, Bayzoni; Nasution, Ade Prayoga
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 29, Nomor 2 (2023)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v29i2.48288

Some researcher missed the role of hooks in their bamboo reinforcement. Consequently, the bamboo reinforcement and concrete used to have slip and failure to composited, this make the concrete and bamboo working independently to sustain the given loading and the bond failure become the main issue than the beam failure. This research studied about the role of the pivot hooks that capable to enhance the loading capacity higher than the beams without the pivot hooks. Experimental test performed in order to identify the effect of the pivot hooks presence which added to the flexural reinforcement which made by bamboo materials to avoid the bond slip failure that mostly occur in the bamboo reinforced concrete beams. The experimental test which verified by the numerical analysis by FEA NX commercial software proof that the pivot hooks are able to increase the loading capacity of a concrete beam 33% - 40% higher than the bamboo reinforcement without the pivot hooks. Architectural façade and budget efficiency caused the bamboo become unavoidable material in construction, by adding the structure modification such as the pivot hooks for the bamboo reinforcement, the failure can be reduced, then the entanglement of bamboo in construction become more functional.

KAJIAN PERKEMBANGAN POLA RUANG FISIK SPASIAL PERMUKIMAN KUMUH DI KAWASAN KARYA MAKMUR, DENPASAR KADEK TANIA UTAMI PUTRI; PUTU ELLSA SARASSANTIKA; PUTU HARTAWAN; DESAK KADEK PRADNYA KUMALA DEVI
GANEC SWARA Vol 18, No 4 (2024): Desember 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i4.1088

A livable settlement is a target within the Sustainable Development Goals (SDGs), aimed at creating resilient, inclusive, safe, and sustainable cities and communities. The Karya Makmur area in Denpasar is one of the regions facing significant slum settlement issues. This study aims to identify spatial and physical changes in the area over the past 18 years (2006-2023) and uncover the factors driving the development of slum settlements in this region. A qualitative approach was used, combining map overlay analysis (superimposed analysis) with field data validation. Results indicate that Karya Makmur has undergone major transformations in land use patterns, buildings, and circulation, while showing minor changes in settlement characteristics. The densification process driven by urbanization is identified as the primary factor contributing to the rapid growth of slum areas in this region. This research aims to contribute to future efforts in slum area improvement and planning

Comparison of Seismic Performance of L-Shaped Multi-Story Structures with Eccentrically Braced Frame and Friction Dampers Ramadhan, Andhika Daffa; Sulaksitaningrum, Roro; Sarassantika, I Putu Ellsa; Casita, Cintantya Budi
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 13 No 1 (2025): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (January 2025)
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v13i1.10115

At the stage of planning the design of an asymmetric multi-story structure, the seismic performance of the structure must be considered, especially in earthquake prone areas. A structure can increase its capacity to withstand seismic loads by using an appropriate bracing system, such as eccentric bracing or utilizing seismic dampers like friction dampers. This research aims to compare five L-shaped multi-story steel structural models using Eccentrically Braced Frame and friction dampers. The models that focus of this research are model 1 (Moment Resisting Frame), model 2 (structure with diagonal EBF), model 3 (structure with inverted V EBF), model 4 (structure with diagonal friction damper), and model 5 (structure with chevron friction damper). To analyze each model from the elastic condition to the collapse condition, the ETABS software was used, which employs a nonlinear static pushover approach. As a result, all evaluated structural models meet the Immediate Occupancy performance level, which means that all five models can still function normally even after an earthquake occurs. Because of the higher ductility capacity and better inelastic behavior compared to MRF and EBF structures, structures with friction dampers are the best choice for use in steel structures.

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