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Jufriadif Na`am
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Civil Engineering Collaboration
Published by Universitas Putra Indonesia YPTK Padang
ISSN : 26155915     EISSN : 26155915     DOI : 10.35134/jcivil
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Civil Engineering Collaboration is an open-access peer reviewed journal that mediate the result of study, research and development of science and technology in Civil Engineering with scope: 1. Civil and Structural Engineeering 2. Earthquake Engineering 3. Surveying and Geo-Spatial Engineering 4. Road and Bridge Engineering 5. Constructions Management 6. Geotechnical Engineering 7. Transportation Engineering 8. Water Resources Engineering 9. Building Constructions.
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 63 Documents
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Analysis of Train Load Distribution on Concrete Sleepers on the Padang–Lubuk Buaya Rail Line Nadra Arsyad; Afrilda Sari; Lili Leylani; Utami Dewi Arman; Letri Karmila
Civil Engineering Collaboration Vol. 11 (2026) No. 1
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jcivil.v11i1.90

Abstract

The increasing operational speed and axle load of railway transportation require railway track structures capable of distributing loads safely and efficiently. Concrete sleepers play a crucial role in transferring loads from the rails to the ballast while maintaining track stability. This study aims to analyze the distribution of dynamic loads acting on concrete sleepers due to train movement and to evaluate the structural response of the railway track using the Beam on Elastic Foundation (BoEF) approach. The research employed a quantitative analytical method using secondary data obtained from railway technical standards, locomotive specifications, and track geometric parameters in accordance with the Indonesian Ministry of Transportation Regulation No. 60 of 2012. Dynamic loading was determined using the Talbot dynamic factor, followed by calculations of rail deflection, maximum bending moment, shear force, and load distribution to the sleepers based on the Winkler elastic foundation model. The results indicate that train speed significantly influences the magnitude of dynamic loads transmitted through the rail structure. Under the analyzed operating conditions, the calculated dynamic wheel load reached 11.77 kN, while the distributed load acting on the concrete sleeper was approximately 6.44 tons. The analysis demonstrates that the concrete sleeper is capable of distributing loads effectively and maintaining structural stability within the design parameters. These findings provide valuable information for railway track planning, maintenance, and evaluation to improve the safety, durability, and performance of railway infrastructure.
Analysis of Compaction Quality of Class A Aggregate Base Using the Sand Cone Method on the Teluk Tapang Port Access Road Evince Oktarina; Tiva Maizar Lina
Civil Engineering Collaboration Vol. 11 (2026) No. 1
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jcivil.v11i1.93

Abstract

This study, entitled “Analysis of Compaction Quality of Class A Aggregate Base Using the Sand Cone Method on the Teluk Tapang Port Access Road Project”, aims to evaluate the field compaction quality and its conformity with the applicable technical specifications. The research scope includes field data collection of moisture content and in-situ density on the Class A aggregate base layer at several test points along the access road alignment to Teluk Tapang Port. The method used is the Sand Cone Test in accordance with SNI 03-2827-2011, to determine the in-situ dry density of the compacted layer. The field density values were compared to the laboratory maximum dry density obtained from the Modified Proctor Test, to calculate the degree of compaction (% compaction). The data were analyzed descriptively to observe the relationship between moisture content and compaction level, as well as to evaluate compliance with Bina Marga standards, which require a minimum of 95% compaction for the upper base layer. The results from 60 test points show that the moisture content ranged from 1.32% to 17.7%, with an average of 7.49%, while the compaction percentage ranged from 51.19% to 99.70%, with an average of 86.15%. Evaluation results indicate that 46.7% of the test points achieved compaction above 90%, and only 21.7% met the 95% requirement set by Bina Marga standards. It can be concluded that the compaction quality of the Class A aggregate base layer on this project has not fully met the specified compaction standards, particularly at several stations with moisture content either above or below the optimum level. Therefore, better moisture control and compaction procedures are required to achieve more uniform and compliant results.
Performance Evaluation of the RSUP Dr. M. Djamil Intersection, Jalan Perintis Kemerdekaan, Padang City Veronika Salmi; Dzikra Marsa Esmara; Eko Prayitno; Risayanti
Civil Engineering Collaboration Vol. 11 (2026) No. 1
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jcivil.v11i1.94

Abstract

Rapid growth in the number of vehicles in Padang City has caused traffic congestion at critical locations, one of which is the Dr. M. Djamil General Hospital (RSUP) intersection. Although equipped with traffic signal infrastructure, the intersection currently operates as an unsignalized junction because the traffic lights are not in use. This study aims to evaluate existing performance and propose alternative solutions based on the 2023 Indonesian Road Capacity Manual (PKJI). Primary data were obtained through field surveys conducted over four days during morning, midday, and evening peak periods. Analysis of existing conditions during the evening peak hour (Saturday, 17:00–18:00 WIB) revealed a degree of saturation (DS) of 0.89 and an intersection delay of 15.34 seconds/vehicle, corresponding to Level of Service C (stable flow, moderate density). Three alternative solutions were examined: installing traffic signals (3-phase), widening the major road combined with traffic signals, and widening the major road without traffic signals. Comparative results indicate that Alternative Solution 3 (widening the major road by 1 meter without traffic signals) is the most effective, yielding a DS of 0.87, a delay of 14.84 seconds/vehicle, and Level of Service B.

Page 7 of 7 | Total Record : 63

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