Motivection最新文献

{"title":"Hazard Identification, Risk Assessment and Determining Control (HIRADC) in Mining Operations at PT Semen Padang","authors":"Fadhilah Fadhilah, Elita Amrina, Risma Erwi Gusvita","doi":"10.46574/motivection.v5i3.249","DOIUrl":"https://doi.org/10.46574/motivection.v5i3.249","url":null,"abstract":"The mining industry has potential and hazard factors with high risks and are prone to accidents. Based on the records of work accidents that occurred at PT Semen Padang in 2022, 67% often occur in the mining operation unit. This study aims to identify hazard risks, analyze the severity of each risk and its risk category as well as risk control in the mining operational area of PT Semen Padang. This research is a qualitative research with a descriptive approach using risk analysis in the form of likelihood and consequences as well as risk matrix analysis. This method is a form of risk management process as an effort to prevent work accidents. Based on the research results, there are 30 types of hazard risks found in the mining operational area with a percentage of risk level, namely 67% low risk level, 27% medium risk level, and 6% high risk level.
 Industri pertambangan memiliki potensi dan faktor bahaya dengan risiko yang tinggi dan rentan terhadap kecelakaan. Berdasarkan rekaman kecelakaan kerja yang terjadi di PT Semen Padang pada tahun 2022, sebesar 67% sering terjadi di unit operasi tambang. Penelitian ini bertujuan untuk mengidentifikasi risiko bahaya, menganalisis tingkat keparahan setiap risiko dan kategori risikonya serta pengendalian risiko yang terdapat di area operasional tambang PT Semen Padang. Penelitian ini merupakan penelitian kualitatif pendekatan deskriptif menggunakan analisis risiko dalam bentuk kemungkinan dan konsekuensi serta analisis matriks risiko. Metode ini merupakan bentuk proses manajemen risiko sebagai upaya pencegahan kecelakaan kerja. Berdasarkan hasil penelitian terdapat 30 jenis risiko bahaya yang ditemukan di area operasional penambangan dengan persentase tingkat risiko yaitu 67% tingkat risiko rendah, 27% tingkat risiko sedang, dan 6% tingkat risiko tinggi.","PeriodicalId":489188,"journal":{"name":"Motivection","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135656302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Method of Calculating the Forces on the 2D/3D Truss: A Review","authors":"Mega Oktaviani, Delima Yanti Sari, Yolli Fernanda, Andril Arafat","doi":"10.46574/motivection.v5i3.226","DOIUrl":"https://doi.org/10.46574/motivection.v5i3.226","url":null,"abstract":"The truss system is the most efficient structural system, and is widely used in various forms of building contruction. In analyzing a structure there are various methods that have been used, including the stiffness matrix method and the classical mechanics method. To facilitate structure analysis can be done with the help of existing structure analysis software, such as SAP2000, Etabs, and Opensess, or by developing the Matlab programming language with a GUI. The purpose of this study is to provide a review of several calculation methods that have been used, to calculate the forces on 2D/3D truss. The research method used is a review literature that is descriptive analysis by collecting several relevant sources. In this paper, a literature review of the 2D/3D truss calculation method was carried out in terms of the calculation method and the software used. The results obtained are the stiffness matrix method which is the most popular method and has been widely used to date, because the calculation process is carried out in a systematic and patterned manner. And the application that is commonly used is Matlab, with the program validation process using SAP2000, the results of the analysis between programs show no different results.
 Sistem rangka batang (truss) adalah sistem struktur yang paling efisien, dan banyak digunakan dalam berbagai bentuk kontruksi bangunan. Dalam menganalisis suatu struktur terdapat bermacam-macam metode yang telah digunakan, diantaranya metode matriks kekakuan dan metode mekanika klasik. Untuk memudahkan analisis struktur dapat dilakukan dengan bantuan software analisis struktur yang telah ada, seperti SAP2000, Etabs, dan Opensess, atau dengan mengembangkan bahasa pemograman Matlab dengan GUI. Tujuan penelitian ini adalah memberikan tinjauan (review) tentang beberapa metode perhitungan yang telah digunakan, untuk menghitung gaya-gaya pada truss 2D/3D. Metode penelitian yang digunakan adalah literatur review yang bersifat analisis deskriptif dengan mengumpulkan beberapa sumber yang relevan. Dalam paper ini dilakukan kajian literatur tentang metode perhitungan truss 2D/3D dari segi metode perhitungan dan software yang digunakan. Hasil yang didapatkan yaitu Metode matriks kekakuan merupakan metode yang paling populer dan telah banyak digunakan hingga saat ini, dikarenakan proese perhitungan dilakukan secara sistematis dan terpola. Dan aplikasi yang umum digunakan adalah Matlab, dengan proses validasi program menggunakan SAP2000, hasil analisis antara program menunjukan hasil yang tidak berbeda.","PeriodicalId":489188,"journal":{"name":"Motivection","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135524401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}