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Repmi Tamsih, Intan Java Turis
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Civil Engineering, Building, Construction & Architecture Engineering Environmental Science

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Analisis Geometrik Jalan Raya dengan Pendekatan Bina Marga (Studi Kasus : Jl. Poros Tikungan SP 4, Kelurahan Makbalim, Kilometer 37, Kabupaten Sorong) Setiawan, Ahmad Ardi; S, Muh. Rizal; Repmi Tamsih, Intan Java Turis
Jurnal Ilmiah Rekayasa Sipil Vol 22 No 1 (2025): April 2025
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v22i1.1610

Abstract

The purpose of road geometry planning is to produce safe infrastructure and the maximum efficiency of traffic flow services. It can maximize the ratio of the level of use of the implementation cost on the road. The condition of Jalan Poros, Bend SP 4, Sorong Regency is a straight road and there are several steep and sharp bends, so it becomes one of the factors for accidents. Slippery road conditions are also often a factor in accidents for two-wheeled users. The purpose of this study is to analyze and describe the condition of the road geometry and also to evaluate the horizontal curve (bend) on the SP 4 bend axis road section and whether it is appropriate based on the 2020 Bina Marga Guidelines. The research method used is quantitative research. The primary data used in this study are road geometric data, environmental conditions, topographic maps, road width, and curve length. The secondary data are plan speed data, bend coordinate data, and plan drawings. The value of e in calculating the distribution curve coefficient f and e gives a value of 8.75%, while the value of Lc (calculating the length of the transition curve) = 207.07 m. The requirement for the spiral-circle-spiral curve is Lc ≥ 20m so this curve can be designed as a spiral-circle-spiral curve. The SP 4 bend in Sorong Regency has a flat terrain type. Based on calculations, the value of Lc = 206.893 and the value of Ls = 29.76. Both values are more than 20m, so they meet the requirements of a type bend.
ANALISIS STRUKTUR RANGKA BAJA PADA PROYEK PEMBANGUNAN GEDUNG OLAHRAGA UNIMUDA SORONG Kifly, Zul; Rahmat, Andi; Repmi Tamsih, Intan Java Turis
Jurnal Riset Rekayasa Sipil Vol 9, No 2 (2026): Maret 2026
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v9i2.110063

Abstract

Analisis struktur yang tepat dapat mencegah kegagalan struktural dan memperpanjang usia pakai suatu bangunan gedung. Oleh karena itu, analisis struktur dalam konteks proyek pembangunan gedung olahraga Unimuda Sorong menjadi sangat penting untuk dilakukan. Penelitian ini bertujuan untuk mengevaluasi tingkat keamanan struktur, menghitung beban ultimate pada setiap elemen, menganalisis deformasi struktur, dan mengevaluasi kekuatan sambungan baut. Struktur bangunan menggunakan material baja dengan dimensi 50 m x 24 m, tinggi kolom 6 m, dan bentang kuda-kuda 24 m. Analisis struktur menggunakan metode LRFD (Load and Resistance Factor Design) dengan bantuan aplikasi SAP2000 v.22. Analisis dan perhitungan mengacu pada SNI 1726:2019, SNI 1727:2020, SNI 1729:2020, dan PPURG 1987. Hasil analisis menunjukkan 20 elemen struktur (rafter dan balok) mengalami kondisi overstressed dengan PM-Ratio > 1,00. Beban ultimate terbesar dipikul elemen kolom dengan Pu = -64,617 kN, Vu = 32,126 kN, dan Mu = 99,3886 kN.m. Deformasi maksimum akibat kombinasi beban ultimate sebesar 0,259 m. Perhitungan sambungan baut menunjukkan kekuatan memadai dengan nilai 0,635 < 1 (sambungan rafter-kolom) dan 0,685 < 1 (sambungan antar rafter), serta kuat tumpu pelat 1.234,4 kN > 662,4 kN. 
Co-Authors Andi Rahmat Kifly, Zul S, Muh. Rizal Setiawan, Ahmad Ardi