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Journal : Journal Of World Science

Comparative Analysis of Material Take-Off Structure (North Building) B.Ut.2 UT.75 Based on BIM (Building Information Modeling) between Autodesk Revit and Manual Quantity Calculation in LMS-02 Range Irrigation Project Rendra, Taufik; v, Feriyanto; Al Khaebar, Farhan; Roesdiana, Tira
Journal of World Science Vol. 4 No. 5 (2025): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v4i5.1444

Abstract

The material estimation process in construction projects is a crucial step in planning and cost control. However, conventional methods such as manual calculations often take a long time and have a high potential for error. With the development of Building Information Modeling (BIM) technology, software such as Autodesk Revit offers a more efficient solution in performing Material Take-Off (MTO). This research aims to analyze the comparison of the results of the MTO calculation of the North Building structure (B.Ut.2) UT.75 in the LMS-02 Range Irrigation Project using Autodesk Revit and manual calculation methods, to find out the extent of the difference between the two methods in terms of accuracy, time efficiency, and effectiveness of their application in construction projects. The research method used is a quantitative study with a comparative approach to analyze that MTO calculations using Autodesk Revit are faster than manual methods, with a high level of accuracy in material quantification. In addition, the application of BIM in the MTO process can minimize the potential for human error and improve efficiency in project management.
Analysis of the Effect of Brick Waste on Concrete Compressive Strength Pramujya S, Bayu; Mirdiana, Fajar; Muhammad I, Regan; Roesdiana, Tira
Journal of World Science Vol. 4 No. 1 (2025): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v4i1.1272

Abstract

The construction industry generates significant red brick waste, often left unused and posing environmental challenges. Utilizing this waste as a substitute for fine aggregate in concrete can reduce reliance on natural materials and enhance concrete performance. Both red bricks and sand share a common silica (SiO?) content, making bricks a viable alternative material. This study evaluates the compressive strength of concrete incorporating red brick waste and identifies the optimal substitution percentage for maximum strength. Concrete samples (15x15x15 cm³) of K250 quality were tested with red brick waste replacing 0%, 6%, 8%, 10%, 12%, and 14% fine aggregate by weight. Compressive strength tests were conducted after curing periods of 7, 14, 21, and 28 days. Results indicate that adding brick waste significantly influences concrete strength. Concrete with 12% brick waste substitution achieved the highest compressive strength of 274.09 kg/cm², surpassing the strength of 6% substitution at 260.61 kg/cm². The findings demonstrate that red brick waste is a sustainable and effective alternative aggregate, contributing to environmental conservation and improved concrete performance. However, substitution proportions must be optimized to maintain desired structural properties.
Interpretation of SAP2000 Analysis Results Using the Design Response Spectrum Method in Earthquake Resistance in the Structural Performance of High-Story Buildings According to SNI 1726:2019 Andika, Reja; Roesdiana, Tira
Journal of World Science Vol. 4 No. 2 (2025): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v4i2.1294

Abstract

This research investigates earthquake dynamics and their impact on structural responses, focusing on building flexibility and rigidity’s influence on seismic performance. Using SAP2000 version 24 software as per 1726:2019 guidelines, the KC BTN Bank office building in Cirebon was evaluated. Seismic load data from RSA PuSGeN Cipta Karya (Desain Spektra Indonesia 2021) assessed the structure's safety against Indonesian seismic standards. The analysis confirms compliance, achieving safety limits and a 90% modal participation mass ratio per Article 7.9.1 of SNI 1726:2019. The building's fundamental periods (T) are 0.562 seconds (Tc) and 0.546 seconds (Ta Min) for each direction. Base reactions reached a 100% scale factor, meeting Article 7.9.1.4.1 requirements. Story displacements in the X and Y directions due to lateral sway are safe, with drifts below the allowable values in Table 20 of SNI 1726:2019. The findings show that the structural design meets earthquake-resistance requirements, ensuring safety and compliance. This research underscores the need for thorough design reviews, confirming that main structural elements align with criteria for multi-story buildings, and provides insights for optimizing designs to enhance resilience and safety in seismically active regions.