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Journal : Media Ilmiah Teknik Sipil

Analisis Beban Kerja Dan Beban Mental Masinis Terhadap Keselamatan Perjalanan Kereta Api (Studi Kasus: Masinis pada Divre II Sumatera Barat): Analysis Of Workload And Mental Load Of Machinists On Train Travel Safety (Case Study: Machinists at Divre II West Sumatra) Afriyani, Sicilia; Nofriyanti, Elsa; Angelia, Nike; Sari, Putri Kumala; Fitria, Winda; Mayunita, Finisa Nur
Media Ilmiah Teknik Sipil Vol. 12 No. 3 (2024): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v12i3.8162

Abstract

As a mode of mass transportation, trains are one of the choices for people to travel. Safety and security of train travel are important factors in the implementation of railway transportation. One of the problems in railways is the low safety performance reflected by the high number of accidents. Machinists play an important role in the safety of railroad trave. The increasing number of schedules and trips as well as the lack of the number of machinists assigned to Divre II West Sumatra resulted in an increasingly dense schedule arrangement that affects the workload and mental burden felt by machinists and of course will also have an impact on the safety of the train journey itself. Therefore, it is necessary to conduct research on workload and mental load on machinists. This study aims to predicting the probability of train accidents in terms of factors affecting the level of fatigue, predicting the probability of train accidents in terms of factors affecting workload and mental load, analyzing the relationship between factors affecting workload and mental load felt by machinists in relation to train accidents. The method using modeling with a Bayesian Network Structure (SBN) using questionnaire data conducted on machinists in Divre II West Sumatera which is then analyzed using Gennie 2.2 Software to obtain the probability value of accidents that may occur to machinists based on the machinist classification level and finally find out what factors affect the workload and mental of machinists.
Perencanaan Rumah Dua Lantai Dengan Struktur Beton Bertulang Dan Rangka Atap Baja Ringan Prefabrikasi Di Daerah Rawan Gempa: Structural Design Of Two Story Reinnforced Concrete Residential House With Prefabricated Light Steel Roof Frame In Earthquake Areas Fitria, Winda; Guspari, Oni; Putra, Roni Tri; Arazka, Wahyu; Effendi, Effendi; Afriyani, Sicilia; Gusnita, Riza
Media Ilmiah Teknik Sipil Vol. 13 No. 3 (2025): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v13i3.10862

Abstract

This study aims to design a two-story earthquake-resistant house in Padang City with reinforced concrete structural system for columns, beams and foundations, combined with prefabricated lightweight steel roof frame. The design procedure refers to SNI 1727 2020 for minimum loads, SNI 2847 2019 on requirements for reinforced concrete and SNI 1726 2020 on seismic design procedures for buildings. 3D model was developed using sap2000 application to obtain internal forces and support reactions of the building. The foundation design was analyzed by Terzhagi’s method with consideration of the local soil conditions. The result indicate that the designed structural elements meet the strength requirements for earthquake resistant house in Padang. The use of prefabricated light steel roof frame does not significantly affect the total structural weight, but contributes to time efficiency during construction. The structural DED produced in this study is expected to serve as a practical reference for earthquake- resistant housing development in Padang. This research highlights the importance of applying seismic standards even to residential buildings.
Analisis Kemampuan Pasir Dari Pantai Nirwana Kota Padang Dan Pasir Dari Pantai Kawasan Mandeh Pesisir Selatan Sebagai Pengganti Pasir Ottawa Dalam Pengujian Sandcone: Analysis Of The Capability Of Sand From Nirwana Beach At Padang City And Sand From Mandeh Beach At Pesisir Selatan As Subtitutes For Ottawa Sand In Sandcone Testing Afriyani, Sicilia; Prices, Afrizal Putra; Arlis, Angga Putra; Araska, Wahyu; Vernando, Vero Gusri; Husni, Alya Miftahul; Effendi, Effendi; Fitria, Winda
Media Ilmiah Teknik Sipil Vol. 13 No. 3 (2025): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v13i3.10869

Abstract

Ottawa sand has long been used as a standard material in geotechnical laboratory tests, particularly in grain size distribution and Sand Cone tests, due to its uniform particle size, purity, and stable physical properties. This study explores the potential of using beach sand from Nirwana and Mandeh as substitutes for Ottawa sand. The research process began with problem identification, followed by a literature review, sample collection, laboratory testing, and data analysis. The results show that the specific gravity of Nirwana sand (2.77) and Mandeh sand (2.72) are relatively close to Ottawa sand (±2.65). In terms of the coefficient of uniformity (Cu), Nirwana sand (2.34) is closer to Ottawa sand (2.17) compared to Mandeh sand (2.94). Regarding the coefficient of curvature (Cc), Nirwana sand (0.72) performs better than Mandeh sand (0.66), although both remain below the ideal range (1–3). Overall, Nirwana sand demonstrates greater potential as an alternative to Ottawa sand, with improvements in gradation recommended to achieve optimal performance.