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All Journal RACIC : Rab Construction Research JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION Jurnal-Teknik Sipil Arsitek Perencanaan Wilayah (J-TSIAP)
Baskoro Abdi Praja
Universitas Atma Jaya Yogyakarta
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Environmental Science Industrial & Manufacturing Engineering

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WAKTU GETAR STRUKTUR BANGUNAN GEDUNG DENGAN PEREDAM GETAR EKSTERNAL FLUID VISCOUS DAMPER Baskoro Abdi Praja; Josefa Berti Avanti
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol. 6 No. 2 (2022): JCEBT SEPTEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v6i2.7945

Abstract

Struktur bangunan tahan gempa menjadi solusi dalam perencanaan struktur. Salah satu  solusi yang digunakan untuk meningkatkan kinerja struktur bangunan adalah dengan pemasangan Fluid Viscous Damper (FVD). Penelitian ini menunjukkan waktu getar struktur dengan penambahan  FVD pada sudut-sudut gedung. Struktur gedung yang dibahas adalah struktur gedung beton bertulang 10 lantai berukuran 35 x 35 m dengan fungsi bangunan sebagai perkantoran. Lokasi penempatan Fluid Viscous Damper (FVD) diaplikasikan pada sudut-sudut bangunan. Kemudian dilakukan pemodelan struktur 3 dimensi dengan bantuan software ETABS 2018.  Pemodelan struktur dibuat dalam 2 model, yaitu struktur rangka dan struktur dengan Fluid Viscous Damper (FVD). Waktu getar alami struktur didapat dengan bantuan program ETABS 2018. Waktu getar struktur yang didapat dari pemodelan struktur tanpa peredam dan struktur dengan Fluid Viscous Damper.  Penggunaan FVD pada struktur gedung memberikan penurunan waktu getar struktur hingga 56% lebih rendah dari sistem struktur rangka pada mode ke-1 dan mode ke-2.  Selanjutnya memberikan penurunan waktu getar struktur hingga 89% untuk mode ke-12. Efektifitas penggunaan damper tipe FVD memberikan dampak secara langsung melalui waktu getar struktur.
PENGARUH PEMILIHAN JENIS TUMPUAN TERHADAP PERILAKU STRUKTUR GEDUNG Baskoro Abdi Praja
Jurnal Teknik Sipil, Arsitek, Perencanaan Wilayah (J-TSIAP) Vol. 2 No. 2 (2023): Jurnal Teknik Sipil Arsitektur Perencanaan Wilayah (J-TSIAP)
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/j-tsiap.v2i2.93

Abstract

The use of software is important in the process of planning and structural analysis, specifically the ETABS software. However, the use of software needs to be based on technical concepts and considerations so that technical execution can be carried out in accordance with expectations and targets, for example regarding the selection of the type of support. There are 2 types of supports, namely pin supports and pin supports. These two supports will be the comparison variables with the 4-storey reinforced concrete building modeling system. The analysis was carried out by applying static loads and spectrum response earthquake loads. From this analysis, a comparative study was obtained with a focus on the vibration period of the structure and the magnitude of support reaction values. The bearing reaction in the Z direction on the pin supports is found to be greater than the fixed supports but does not have a moment value so this is very practical for the benefit of substructure design.
PREDIKSI KAPASITAS PENAMPANG KOLOM BETON BERTULANG DENGAN VARIASI DIAMETER TULANGAN Samsul A Rahman Sidik Hasibuan; Baskoro Abdi Praja; Iin Irawati
Racic : Rab Construction Research Vol. 7 No. 1 (2022): RACIC (RAB CONSTRUCTION RESEARCH)
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i1.2401

Abstract

Reinforced concrete column design is the process of determining the dimensions of the columns and reinforcement required with the appropriate quality of concrete and steel so that they can withstand the planned load to work on the column. Unlike the beam design, which was based on the applied load, it is possible to determine the cross-sectional dimensions and reinforcement requirements directly from the design equation, and the column design process is iterative. A column generally experiences axial forces, shear forces, bending moments, and torsional moments. In this paper, cross-sections of reinforced concrete columns are modelled and analyzed using an android application that can be installed via the play store. The application offered by eigenplus named RCC Column Design version 2.1.12 was released on 17 September 2017. The last updated RCC Column Design application was on 25 March 2018. This paper aims to predict the cross-sectional capacity of reinforced concrete columns with variations in reinforcement diameter. The cross-sectional capacity of the column referred to in this paper is the axial capacity, moment capacity, and shear capacity. Furthermore, the value of the cross-sectional capacity of reinforced concrete columns with variations in the diameter of the reinforcement has been obtained. The values ​​obtained are proposed as predictions in this paper.
Effect of Staircase Incorporation on Seismic Performance of 6-Story RC Buildings: A Nonlinear Pushover Analysis Samsul Abdul Rahman Sidik Hasibuan; Hakas Prayuda; Masdiana; Baskoro Abdi Praja; Annisa Adika Qolby; Muhammad Rizal; Syarbaini Lubis
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol. 10 No. 1 (2026): JCEBT MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v10i1.17723

Abstract

The seismic design of multi-story buildings requires accurate modeling and analysis to ensure structural safety during earthquakes. However, the staircase is often overlooked in traditional structural analyses. Therefore, this study aimed to examine the impact of the staircase on the seismic behavior of a six-story reinforced concrete building using nonlinear pushover analysis. The ETABS Nonlinear v.9.7.4 was used to model and analyze two variants, including one with a staircase and one without a staircase. Both models undergo nonlinear static pushover analysis with lateral loads of 1000 kN applied at each floor in the X and Y directions. Key seismic performance parameters were compared including natural periods, pushover curves, story displacements, drifts, drift ratios, and shears. The results showed that incorporating staircases significantly influences seismic response. The model with the staircase has a shorter natural period (0.71s vs. 0.82s for the first mode), showing increased stiffness. Subsequently, it also shows a higher base shear capacity (5200 kN vs. 4900 kN in the X-direction), suggesting enhanced lateral load resistance. The staircase model experiences reduced story displacements and lower drift ratios, with the maximum drift ratio decreasing from 1.03% to 0.86%. These results highlight the crucial role of staircases in improving seismic performance by increasing stiffness, enhancing lateral load capacity, and controlling displacement. In line with these findings, there is a need to incorporate the staircase in structural modeling to achieve more accurate seismic performance predictions, contributing to safer and more resilient building designs in earthquake-prone regions.
Co-Authors Annisa Adika Qolby Hakas Prayuda Iin Irawati Josefa Berti Avanti Masdiana Muhammad Rizal Samsul A Rahman Sidik Hasibuan Samsul Abdul Rahman Sidik Hasibuan Syarbaini Lubis