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Media Konstruksi : Jurnal Ilmiah Teknik Sipil
Published by Universitas Halu Oleo
ISSN : -     EISSN : 25032712     DOI : https://doi.org/10.33772/medkons.v9i4.68
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Media Konstruksi : Jurnal Ilmiah Teknik Sipil provides a publication venue for researchers and practitioners of civil engineering for various disciplines. These may include but are not limited to various fields such as: Structural Engineering Transportation Engineering Water Resources Engineering Geotechnical Engineering Project Management Material Science
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 13 Documents
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Search results for , issue "Vol. 9 No. 4 (2024)" : 13 Documents clear
Pendekatan Penilaian Gedung Penting Yang Tidak Direncanakan Secara Patut: Studi Kasus: Tower Air Traffic Control Airnav Bandara Halu Oleo, Kendari Masykur Kimsan
MEDIA KONSTRUKSI Vol. 9 No. 4 (2024)
Publisher : Jurusan Teknik Sipil, Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/medkons.v9i4.87

Abstract

This study investigates the technical condition of the Air Traffic Control (ATC) tower at Halu Oleo Airport, Kendari, with a focus on its foundation and structure. The selection of this building is motivated by the critical need to ensure its safety and adequacy in earthquake-prone areas, particularly following the devastating Palu earthquake in 2018. This research encompasses a comprehensive scope of field testing, including visual surveys, soil testing using cone penetration tests and hand-boring, as well as non-destructive testing such as hammer tests, ultrasonic pulse velocity measurements, and rebars locators. The selection of these methods is tailored to the operational requirements of the building. Both field and laboratory analyses reveal significant shortcomings in the structure's compliance with required concrete strength standards for earthquake-resistant buildings. Additionally, deflections in the structure do not meet the necessary criteria for optimal performance during seismic events. Finite Element Method (FEM) analyses of the upper and foundation structures indicate that the foundation's load-bearing capacity is insufficient for demanded earthquake loads, while the upper structure's natural period exceeds standard requirements. For all seismic scenarios considered, the structure fails to meet criteria for deflection (serviceability) and strength, resulting in performance at the Immediate Occupancy – Life Safety level. This implies that while the structure is safe for use, it requires maintenance and repairs to achieve better performance levels. Recommendations for improvement include reinforcing the entire structure, from the foundation to the upper levels, with construction materials that meet earthquake standards, or constructing a new ATC building that adheres to current regulations. Consequently, this study offers an alternative approach for evaluating critical buildings in earthquake-prone areas.
Analisis Perbandingan Metode Fast Track Dan Metode Crashing Terhadap Efisiensi Biaya Dan Aktivitas Waktu Pelaksanaan Fitriah Fitriah; Wayan Mustika; Romy Talanipa; Syahrul Ramadhan
MEDIA KONSTRUKSI Vol. 9 No. 4 (2024)
Publisher : Jurusan Teknik Sipil, Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/medkons.v9i4.88

Abstract

Pembangunan proyek memerlukan sumber daya manusia, material, peralatan, metode, uang, informasi, dan waktu, dengan tiga aspek penting, yaitu waktu, biaya, dan mutu (Kerzner, 2006). Meskipun mutu harus tetap dijaga, namun sering terjadi pembengkakan biaya dan keterlambatan waktu (Praboyo, 1999) yang dapat menurunkan efisiensi dan nilai kompetitif pengembang (Mora dan Li, 2001). Lokasi penelitian adalah Proyek Rehabilitasi D.I Wawotobi, Kabupaten Konawe (Paket-2) oleh PT. Pembangunan Perumahan (Persero) Tbk – PT. Jaya Konstruksi Manggala Pratama Tbk KSO. Penelitian ini bertujuan untuk menganalisis percepatan proyek dengan metode Fast Track dan Crashing, mengukur persentase durasi dan biaya proyek, serta menilai metode mana yang lebih efektif untuk proyek ini. Penelitian menggunakan metode Fast Track dan Crashing, metode Fast Track menata ulang aktivitas pekerjaan secara paralel tanpa mempengaruhi biaya, sedangkan metode Crashing mengurangi waktu proyek secara terstruktur dan logis dari kegiatan proyek. Berdasarkan hasil analisis, Fast Track mempercepat penyelesaian proyek sebesar 2,04% (5 hari) dan menghemat biaya sebesar 0,05% (Rp 42.950.813), sedangkan Crashing mempercepat penyelesaian proyek sebesar 18,78% (46 hari) dan menghemat biaya sebesar 1,01% (Rp 817.060.274). Metode Crashing lebih efektif dalam mengurangi durasi dan biaya proyek.
Penentuan Kestabilan Lereng Batuan Menggunakan Limit Equilibrium Method (LEM) Di Ruas Jalan Trans Palu-Kulawi Desa Salua Kabupaten Sigi I Ketut Nuarta; Nunik Rezkiarti Janat; Ahmad Imam Abdullah; Asrafil; Abdul Mukaddas
MEDIA KONSTRUKSI Vol. 9 No. 4 (2024)
Publisher : Jurusan Teknik Sipil, Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jmk.v9i4.147

Abstract

Ruas jalan Desa Salua di Kabupaten Sigi, Sulawesi Tengah, dinilai rawan longsor akibat kondisi geologi, geometri lereng, dan guncangan gempa seperti pada tahun 2018. Penelitian ini bertujuan menilai kestabilan lereng sebagai acuan perencanaan struktural guna meminimalkan risiko longsor. Interpretasi tingkat kestabilan lereng merujuk dari nilai faktor keamanan (FS) yang diperoleh dari penerapan limit equilibrium method (LEM) menggunakan kaidah Bishop. Penelitian diawali dengan identifikasi litologi lereng berupa diorit dari Formasi Batuan Terobosan. Estimasi sifat mekanika batuan dilakukan melalui kriteria Hoek-Brown, Geological Strength Index (GSI), dan uji berat isi di laboratorium untuk memperoleh parameter Mohr-Coulomb. Model lereng kemudian dianalisis dalam kondisi dinamis dengan asumsi adanya guncangan. Hasil menunjukkan nilai faktor keamanan (FS) secara deterministik sebesar 6,191 dan probabilitas kelongsoran (PF) sebesar 2,493%. Meski nilai FS menunjukkan lereng stabil (FS > 1), potensi longsor parsial tetap ada akibat pelapukan tidak merata. Riwayat longsor di lokasi membuktikan bahwa guncangan berperan signifikan, sehingga diperlukan penanganan seperti tanggul penahan, paku bumi, geotekstil, serta rekayasa geometri lereng guna meningkatkan kestabilan terhadap guncangan.

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