REINFORCED CONCRETE STRUCTURAL CAPACITY ASSESSMENT OF SWADAYA GUNUNG JATI UNIVERSITY MAIN CAMPUS USING NON-DESTRUCTIVE TESTING
Keywords:
Forensic Audit, Non-Destructive Test, Reinforced Concrete, Schmidt Rebound Hammer Test, Ultrasonic Pulse VelocityAbstract
The degradation of structural capacity due to the age of the building is an important issue that requires periodic evaluation, especially in public facility buildings that are actively operating such as the Faculty of Economics and Business (FEB) Building of Swadaya Gunung Jati University. This study aims to assess the capacity of the reinforced concrete structure of the building through a forensic audit based on the Non-Destructive Test (NDT) method, without physically damaging the building. The methods used include visual inspection for crack pattern identification, Schmidt Rebound Hammer (ASTM C805) testing for estimation of concrete surface compressive strength, and Ultrasonic Pulse Velocity (ASTM C597) for concrete internal integrity evaluation, followed by Pearson correlation analysis and validation using software modeling referring to SNI 2847:2019, SNI 1727:2020, and SNI 1726:2019. The results of visual inspection at 120 column points showed damage in the form of non-structural hair cracks with a maximum width of 0.2 cm. Schmidt Hammer testing yielded an estimated f'c of 40 MPa (78%) and 36 MPa (22%), while the UPV showed 77.50% of the elements in the category of Good, 21.67% Doubtful, and 0.83% Poor. The Pearson correlation between the two methods was relatively weak (r = 0.399), confirming the importance of the combination of NDT methods. ETABS analysis validates that all column elements have a Demand/Capacity ratio below the critical limit, so the structure is declared safe and functional.
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References
Hamzah, A. A., Eswan, & Trias, A. W. M. (2025). ANALYSIS OF THE LEVEL OF BUILDING DAMAGE IN THE KUTAI REGENT OFFICE OFFICE COMPLEX KARTANEGARA.pdf.
Hermansyah, Tukimun, & Mahendra, W. (2025). FORENSIC ANALYSIS OF THE BAPPEDA BUILDING OF KUTAI KARTANEGARA REGENCY. 10(1978), 6323–6336.
Hutasoit, D. M., Natawidjana, R., & Widyaningsih, E. (2023). Comparative Study of the Cost of Implementation of Steel Structure and Reinforced Concrete Structure Work in Building Construction Projects. In Proceedings FTSP Series 6 (Vol. 2, Issue 1, pp. 353–358). https://eproceeding.itenas.ac.id/index.php/ftsp/article/view/2551
Kunal, K., & Killemsetty, N. (2014). Study on control of cracks in a Structure through Visual Identification & Inspection. 11(5), 64–72.
Mardian, C., Romadhon, E. S., & Utama, T. R. (2025). Evaluation of Building Structure Reliability Based on SNI 2847:2019 (Case Study of Baleka II Building of Depok City Government City Hall) (Vol. 24, Issue 1, pp. 71–76).
Maverick, J., Joelin, G. C., Kusbiantoro, K., & Lesmana, C. (2025). EVALUATION OF THE PERFORMANCE OF REINFORCED CONCRETE FRAME STRUCTURES OF EXISTING BUILDINGS IN SAMARINDA. 8(1), 179–192.
Mohamad, N. A. E., Chik, T. N. T., Adzim, T. N. N. T. M., Rusidi, M. A. Y., & Mulyani, R. (2025). Crack Inspection on a Mosque by using Visual Inspection Method. Journal of Advanced Research in Applied Mechanics, 129(1), 1–11. https://doi.org/10.37934/ARAM.129.1.111
Olumoyewa D, A., Chukwuma, J., & Joseph, C. (2025). Structural Integrity Check on Reinforced Concrete Buildings using Non-Destructive Testing Method. 7, 1421–1428.
Prasetya, B., Zhafira, T., Sagara, N. J., Widorini, T., & Sitorus, M. S. (2024). Evaluation of Concrete Quality with Non-Destructive Test Method in the Parking Building Column of the USM Tower. 11(1), 40–45. https://doi.org/10.21063/JTS.2024.V1101.040-45
Purna Dewanti, R., & Choiri Windari, A. (2024). Comparative analysis of the cost efficiency and performance of reinforced concrete structures with steel structures in tall buildings.
Sembiring, S. J. F., Isnaeni, M., Helmi, M., & Alami, Fi. (2024). REVIEW OF FACTORS INFLUENCING NATURAL FREQUENCY CHANGES ON BUILDING STRUCTURES. 32(3), 167–186.
Seputro, B. P., Priyosulistyo, H., & Sudarmoko. (2008). ALTERNATIVE DECISION SUPPORT SYSTEM FOR SCHOOL BUILDING MAINTENANCE (Case study: State Junior High School I Pakem). 682–692.
Wang, Y., Cui, J., Deng, J., & Zhou, H. (2023). Experimental Study of Thermally Damaged Concrete under a Hygrothermal Environment by Using a Combined Infrared Thermal Imaging and Ultrasonic Pulse Velocity Method.
