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Bulletin of Engineering Science, Technology and Industry
Published by PT. RADJA INTERCONTINENTAL PUBLISHING
ISSN : -     EISSN : 30255821     DOI : https://doi.org/10.59733/besti
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering
Bulletin of Engineering Science, Technology and Industry | ISSN: 3025-5821 is a peer-reviewed journal that publishes popular articles in the fields of Engineering, Technology and Industrial Science. This journal is published 4 times a year, namely in March, June, September and December. We invite scientists, practitioners, researchers, lecturers and students from various countries and institutions to contribute to publishing their work and research results in the fields of Engineering, Technology and Industry.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 193 Documents
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STRUCTURAL ANALYSIS OF THE SUPERSTRUCTURE OF THE STA 109+873 OVERPASS BRIDGE ON THE BETUNG–JAMBI TOLL ROAD PROJECT, SECTION 2B Gilbert Sopar Anuadil S; Ahmad Sumantri; Mizanuddin Sitompul; Ricky Bakara
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 4 (2026): December - ON PROGRESS
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.23252848

Abstract

This study evaluates the superstructure of the overpass bridge at STA 109+873 on the Betung-Jambi Toll Road Section 2B. The analysis focuses on the reinforced-concrete deck slab, support and intermediate diaphragms, and a 35.80 m prestressed PC I-girder H-170 system. Secondary project data and shop drawings were assessed using RSNI T-12-2004, SNI 1725:2016, SNI 2833:2016 as a general bridge reference, and Bridge Technical Planning Guideline No. 02/M/BM/2021. Structural checks covered loading, reinforcement, prestress requirements and losses, concrete stress, flexural capacity, shear capacity, and deflection. The 250 mm deck slab requires D16-125 flexural reinforcement and D13-200 distribution reinforcement; its factored shear and deflection remain below the permitted limits. The 400 x 650 mm support diaphragm and 250 x 1250 mm intermediate diaphragm satisfy strength requirements with 6D19 main reinforcement. The PC I-girder uses four tendons with 76 strands. Its calculated flexural resistance, shear resistance, stress levels, and service deflection satisfy the adopted design criteria. The results indicate that the analyzed superstructure meets the required strength, stiffness, and serviceability provisions for the investigated loading scope.
DEVELOPMENT OF A WEBSITE-BASED OCCUPATIONAL SAFETY EDUCATIONAL MEDIUM TO ENHANCE KNOWLEDGE REGARDING WORKPLACE ACCIDENT PREVENTION Eddi Indro Asmoro; Sahrul
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 3 (2026): September
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.23180059

Abstract

Occupational safety and health (OSH) is an important aspect in preventing occupational accidents. Effective OSH education is needed to improve users' understanding of hazard identification and occupational accident prevention measures. This study aimed to develop a website-based occupational safety education media and determine its feasibility and effectiveness in improving users' knowledge regarding occupational accident prevention. This study employed a Research and Development (R&D) method using the ADDIE development model, consisting of five stages: Analysis, Design, Development, Implementation, and Evaluation. The educational media was developed using the Google Sites platform containing materials related to occupational safety, hazard identification, the use of personal protective equipment (PPE), and occupational accident prevention efforts. The feasibility of the media was assessed through validation by material experts and media experts, while the effectiveness of the media was evaluated using a one-group pretest-posttest design involving 30 respondents. The results showed that the website-based educational media was categorized as feasible based on expert validation results. The use of educational media increased the users' average knowledge score from 62.40 in the pretest to 84.60 in the posttest. The results of the Paired Sample t-test indicated a significant difference between knowledge scores before and after using the media (p < 0.001). The Normalized Gain (N-Gain) value of 0.59 indicates a moderate level of effectiveness. The website-based occupational safety education media can be used as an alternative digital learning medium to improve knowledge regarding occupational accident prevention.
ENHANCEMENT OF MECHANICAL PROPERTIES AND CHARACTERIZATION OF CONCRETE WITH THE ADDITION OF SCORIA BASALT AS A FINE AGGREGATE SUBSTITUTE ACTING AS A FILLER Farrel Al Asgar; Sari Utama Dewi; Muhammad Amin
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 4 (2026): December - ON PROGRESS
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research was conducted to determine the effect of adding basalt stone as a filler in sand in the manufacture of mortar. The basalt powder used is grain size of 100 mesh and 270 mesh, the concentration variations are 0% (standard) as a comparison without basalt, 5%, 10%, 15%, 20%, 25%, 30%, and 35% with the age of the test. 7, 14, and 21 days. The results of the analysis show that basalt can be used as a filler material in sand which has a SiO2 compound of 48.463% which can increase the compressive strength of the mortar significantly. The highest compressive strength is found in 270 mesh of 7 Mpa, 10.2 Mpa, 13.4 Mpa. The highest density was found at 270 mesh at 1.841 g/cm3, 2 g/cm3, 2.013 g/cm3. The highest porosity is found in 270 mesh of 16.841%, 14.606%, 13.265%. The highest absorption was found in 270 mesh of 7.92%, 6.878%, 7.204%. The content of SiO2 compounds in B100 5% mortar was 19.348%, followed by B100 30% by 26.701%, B270 5% by 20.895%, and B270 30% by 27.255%. The dominant crystalline phases were formed in mortar with a size of 100 mesh and 270 mesh, namely CASH, quartz and calcite phases.

Page 20 of 20 | Total Record : 193

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