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All Journal Matrix : Jurnal Manajemen Teknologi dan Informatika Logic : Jurnal Rancang Bangun dan Teknologi Portal: Jurnal Teknik Sipil Logic : Jurnal Rancang Bangun Dan Teknologi Jurnal Abdimas: Pengabdian dan Pengembangan Masyarakat
I Nengah Darma Susila
Politeknik Negeri Bali
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering

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Behavior And Performance Of Steel Frame Structures With X-Type Concentric Bracing System Due To Variations In Comparison Of Span Width To Story Height (L/H) I Nyoman Indra Kumara; I Gede Fery Surya Tapa; I Nengah Darma Susila
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 2 (2023): July
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i2.85-95

Abstract

X-type bracing is the strongest bracing. The bigger ratio of the width of the span to the high level (L/H), the slope of the angle on the bracing will be more declivous. The analysis of the structure with the L/H ratio to determine the behavior of the structure using linear analysis of response spectrum and structural performance using the static nonlinear pushover analysis (ETABS 2016) to determine the displacement target that occurred in the structure. Structural modeling is done on 3D portals with levels of 3, 5, 8 and 10 floors with different L/H variations, including L/H=1; L/H=1.25; L/H=1.5; L/H=1.75; and L/H=2. Structural modeling is planned to be in the Surabaya area with moderate soil conditions. This study obtains data such as: (1) The largest maximum drift and floor drift are at type L/H=2, (2) The largest base shear force in the nonlinear pushover analysis at each story occurs at L/H=1, (3 ) In the yield condition type L/H=1 has the smallest percentage of structural stiffness, but in the ultimate condition type L/H=1 has the largest percentage of structural stiffness, and (4) The highest ductility value at each story occurs in type L/H=2 . Based on these results, it shows that the greater the type of L/H in the bracing structure, the greater the displacement target produced. If the angle of bracing becomes more sloping, then the displacement and target displacement that occurs increases.
Behavior And Performance Of Steel Frame Structures With X-Type Concentric Bracing System Due To Variations In Comparison Of Span Width To Story Height (L/H) I Nyoman Indra Kumara; I Gede Fery Surya Tapa; I Nengah Darma Susila
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 2 (2023): July
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i2.85-95

Abstract

X-type bracing is the strongest bracing. The bigger ratio of the width of the span to the high level (L/H), the slope of the angle on the bracing will be more declivous. The analysis of the structure with the L/H ratio to determine the behavior of the structure using linear analysis of response spectrum and structural performance using the static nonlinear pushover analysis (ETABS 2016) to determine the displacement target that occurred in the structure. Structural modeling is done on 3D portals with levels of 3, 5, 8 and 10 floors with different L/H variations, including L/H=1; L/H=1.25; L/H=1.5; L/H=1.75; and L/H=2. Structural modeling is planned to be in the Surabaya area with moderate soil conditions. This study obtains data such as: (1) The largest maximum drift and floor drift are at type L/H=2, (2) The largest base shear force in the nonlinear pushover analysis at each story occurs at L/H=1, (3 ) In the yield condition type L/H=1 has the smallest percentage of structural stiffness, but in the ultimate condition type L/H=1 has the largest percentage of structural stiffness, and (4) The highest ductility value at each story occurs in type L/H=2 . Based on these results, it shows that the greater the type of L/H in the bracing structure, the greater the displacement target produced. If the angle of bracing becomes more sloping, then the displacement and target displacement that occurs increases.
Analisis Break Even Point sebagai Dasar Evaluasi Profitabilitas pada Pekerjaan Struktur Beton (Studi Kasus Pembangunan Pandawa Residence) Made Sudiarsa; I Nengah Darma Susila; Wayan Darya Suparta; Made Budiadi
Portal: Jurnal Teknik Sipil Vol 18, No 1 (2026): April Edition
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v18i1.8781

Abstract

Technological aspects play a crucial role in construction projects, particularly in selecting concrete work implementation methods. The Pandawa Residence project applies two methods for concrete structural work—site mix and ready mix—reviewed on ground floor beams and slabs. This study analyzes cost, quality, time, break-even points, and cash flow planning for both methods. The site mix method requires a cost of IDR 786,789,488.46 with a duration of 98.08 days, while the ready mix method is more economical at IDR 747,836,152.01 and faster at 95.79 days. In terms of quality, ready mix concrete performs better than site mix. The break-even point for cost occurs at a volume of 9.23 m³ with a cost of IDR 9,930,284.94, while the time break-even point is at 2.04 m³ within 0.43 hours. Cash flow analysis indicates a profit of IDR 166,618,719.86, equivalent to 16.72% of the contract value.
Co-Authors I Gede Fery Surya Tapa I Gusti Ngurah Ardana I Ketut Suherman I Ketut Sutapa I Made Aryana I Made Jaya I Made Sudiarsa I Nyoman Ardika I Nyoman Indra Kumara I Nyoman Sutapa I Nyoman Sutarna I Putu Agus Krisnadinata I Wayan Darya Suparta Made Budiadi Made Sudiarsa Wayan Darya Suparta