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All Journal Fondasi: Jurnal Teknik Sipil
Soelarso, Soelarso
Universitas Sultan Ageng Tirtayasa
Civil Engineering, Building, Construction & Architecture Transportation

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Analysis of Optimization of Cross-Sections and Reinforcement of Building Structures Based on SNI 2847-2019 and SNI 1726-2019 Rizik, Ahmad Farhan; Soelarso, Soelarso; Baehaki, Baehaki; Darwis, Zulmahdi
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v13i2.29069

Abstract

Efficiency in structural design is important to optimize the use of materials and costs, while maintaining strength and stability to ensure the safety of the building. With construction design regulations constantly updated, careful and precise planning calculations are crucial. This study identifies overdesign in columns, beams, and foundations of existing buildings, and aims to determine more optimal and efficient dimensions and repetitions, resulting in stronger, more economical, and standard-compliant buildings. The research was conducted in a 4-storey office building with dimensions of 32 x 15,725 meters will be analyzed based on SNI 2847:2019, SNI 1726:2019, and SNI 1727:2020. The analysis was carried out using Microsoft Excel and ETABS. The results of the study showed that there was overdesign in the main column, main beam, and foundation. On a beam of 400mm x 650mm it produces an efficiency of 17.46%. The bending reinforcement requirement results in an efficiency of 21.785%. Meanwhile, the shear reinforcement and middle reinforcement are the same as the initial planning. In a 450mm x 700mm column it produces an efficiency of 16%. For shear reinforcement, an efficiency of 10% is obtained. As for the bending reinforcement, it is the same as the initial planning. In the foundation design, 4 square piles with dimensions of 450mm x 450mm and pilecap dimensions of 2600mm x 2600mm x 500mm with reinforcement requirements for the x direction D22-100 and the y direction D22-125. Resulting in a pilecap volume efficiency of 28.888%.
Analysis of Optimization of Cross-Sections and Reinforcement of Building Structures Based on SNI 2847-2019 and SNI 1726-2019 Rizik, Ahmad Farhan; Soelarso, Soelarso; Baehaki, Baehaki; Darwis, Zulmahdi
Jurnal Fondasi Vol 13, No 2 (2024)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v13i2.32521

Abstract

Efficiency in structural design is important to optimize the use of materials and costs, while maintaining strength and stability to ensure the safety of the building. With construction design regulations constantly updated, careful and precise planning calculations are crucial. This study identifies overdesign in columns, beams, and foundations of existing buildings, and aims to determine more optimal and efficient dimensions and repetitions, resulting in stronger, more economical, and standard-compliant buildings. The research was conducted in a 4-storey office building with dimensions of 32 x 15,725 meters will be analyzed based on SNI 2847:2019, SNI 1726:2019, and SNI 1727:2020. The analysis was carried out using Microsoft Excel and ETABS. The results of the study showed that there was overdesign in the main column, main beam, and foundation. On a beam of 400mm x 650mm it produces an efficiency of 17.46%. The bending reinforcement requirement results in an efficiency of 21.785%. Meanwhile, the shear reinforcement and middle reinforcement are the same as the initial planning. In a 450mm x 700mm column it produces an efficiency of 16%. For shear reinforcement, an efficiency of 10% is obtained. As for the bending reinforcement, it is the same as the initial planning. In the foundation design, 4 square piles with dimensions of 450mm x 450mm and pilecap dimensions of 2600mm x 2600mm x 500mm with reinforcement requirements for the x direction D22-100 and the y direction D22-125. Resulting in a pilecap volume efficiency of 28.888%.
Reinforcement Design of Transfer Beams in a three-Story Residential Building Usnawa, Hamid Wafiq; Soelarso, Soelarso; Baehaki, Baehaki; Darwis, Zulmahdi; Rahma, Midia
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.32287

Abstract

Residential buildings are buildings that are used as residences, for example, houses. In residential buildings that carry modern aesthetics will make the shape of the plan tend to be irregular, so it is necessary to adjust structural elements such as slender columns and transfer columns. A transfer column is a column that rests on a beam (grows across the beam), so the column is not continuous from the bottom floor to the top, while the beam is called a transfer beam. Transfer beams allow load distribution from the upper floors to the structural elements below. This study was conducted to determine the reinforcement requirements of transfer beams in a three-story residential building in accordance with SNI 2847: 2019. Structural analysis was carried out with the ETABS v9.7.1 program and manual calculations to determine the reinforcement configuration of the transfer beam. The result of the research is that the transfer beam with dimensions of 350 mm x 650 mm has a reinforcement configuration, namely 4D19 tensile and 6D19 compressive reinforcement in the support area, and 12D19 tensile and 6D19 compressive reinforcement in the field area, for stirrup reinforcement used 3D12 - 100 mm and for torsion reinforcement used 2D16. As for the deflection that occurs, which is 7,782 mm, this value is still within the permit limit according to SNI 2847: 2019. It can be concluded that the transfer beam is safe to use.
Co-Authors Baehaki, Baehaki Darwis, Zulmahdi Rahma, Midia Rizik, Ahmad Farhan Usnawa, Hamid Wafiq