Design of Beam Based On BIM Method Using Autodesk Revit and Autodesk RSAP

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BACKGROUND
With the development of the Architecture, Engineering and Construction (AEC) industry, a lot of software has been developed to meet the needs of the construction industry with the aim of minimizing human error due to conventional data processing. This requires the Indonesian people to evaluate construction management methods in their implementation [1]. Building Information Modeling (BIM) is a paradigm shift to replace conventional CAD [2]. Building Information Modeling (BIM) is able to simulate all project information or data processing in 3 dimensions. The use of BIM provides many advantages in implementing a project. As is the case with BIM technology, accurate virtual models can be created digitally. BIM enables integrated design and construction processes to achieve better results, lower project costs and timeframes. BIM can also improve and perfect project development as needed starting from the planning stage, field implementation, to completion and maintenance stages Revit is software for modeling, where each building element is identified based on its function, including technical data and price. Revit can create 3D modeling that includes the physical properties and interactions between construction components. Such as when making changes or modifications to a view, these changes will affect other displays and will automatically change. Meanwhile, Autodesk Robot Structural Analysis Professional is a new structural design and analysis software designed to simplify the process of calculating structural loading.
The purpose of this research is to make an optimum design of beam elements in one of the educational facility buildings in the city of Surabaya using the RSAP software which will then be checked against the SNI 2847:2019 regulations. The reason for choosing the Building Information Modeling (BIM) based method is so that the implementation of a construction work becomes more effective and efficient. By using the BIM method, construction companies can save processing time, costs and the required manpower. It can also minimize errors in the implementation of a development by using a technology in the field of construction that has covered all disciplinary aspects of the field of construction work using Building Information Modeling (BIM) technology.

Wind Load
In the calculation of wind load, the data used adjusts to geographical and climatological conditions at the project location. The basic wind speed data to be used in the calculation of wind load using data from the Central Statistics Agency (BPS) in the two-year data range from 2019 to 2020, get the wind speed value is V = 33 m/s.

Earthquake Load
Earthquake load analysis used spectrum response analysis which is analyzed using RSA2019 software with Building Risk Category is IV dan Soil Site Classification is SE / Soft Soil. Get the graph of spectrum response analysis as follows :

Preliminary Design
From the calculations of beam preliminary design, the results of the dimensions beam will be used in the design as follows :

Mass Modals Partisipations
From the output of the Autodesk Robot Structural Analysis Professional, mass participation reaches more than 90%, for the X direction it is in mode 12 and for the Y direction it is in mode 10 with a maximum period of 0,99 Sec and a maximum frequency of 5,9 Hz . It can be concluded based on the provisions of SNI 1726:2019 Chapter 7.9.1 Page 77 that mass modals participation has met the requirements.

Beam Shear Reinforcement
Based on the RSAP output, shear reinforcement is 4D22-260 mm in the plastic hinge area and 4D22-270 mm in the critical hinge area. As in the following picture :

Beam Shear Reinforcement
Based on the RSAP output, shear reinforcement is 4D22-210 mm in the plastic hinge area and 4D22-220 mm in the critical hinge area. As in the following picture : 2. The optimum design of the elongated main beam / Y direction using the Robot Structural Analysis Profesional obtains the following reinforcement results : -Longitudinal Reinforcement : Support Reinforcement : As = 6-D22 mm / A's = 3-D22 mm Span Reinforcement : As = 6-D22 mm / A's = 3-D22 mm -Shear Reinforcement : Plastic Hinge Area : 4D10 mm -210 mm Critical Hinge Area : 4D10 mm -220 mm Because the width of the shear reinforcement spacing result from RSAP output does not meet the requirements of SNI 2847:2019 Chapter 9.7.6.2.2, then the shear reinforcement in the design used the result from SNI calculations, namely : 3D10 mm -100 mm in plastic hinge area and 3D10 mm -200 mm in critical hinge area. Volume 19, Nomor 02, Desember 2022P-ISSN : 1698-8259 E-ISSN : 2721 3. Based on the output of the beam reinforcement results, designing a building based on the building information modeling (BIM) method using the Robot Structural Analysis Professional software can be summarized as follows : -Robot Structural Analysis Professional Software for beam optimal design can be said to be more wasteful than manual check calculation results using SNI 2847:2019 (conventional). This is due to limitations in adjusting the amount of reinforcement that cannot be changed in the Robot Structural Analysis Professional software. -Beam reinforcement in RSAP obtains reinforcement spacing values that are greater than manual calculations. However, the spacing obtained from the RSAP results is too large so it does not meet the requirements of SNI 2847:2019. -Because software that supports the BIM method can be integrated at every stage or project file, used BIM-based software for beam optimal design is more time efficient and easier to run than conventional software.