Conference Universitas Islam Indonesia (UII)
CE ReForm

Evaluasi dan perkuatan elemen struktur balok pada bangunan gedung hotel di yogyakarta menggunakan Carbon Fiber Reinforced Polymer (CFRP)

Date Published : 30 July 2026
paper-cover

Contributors

Hajrah Zulfika

Correspondence Author

Jafar

Author

DOI

DOI /jas4xf33

ISBN

2962-2697

Keywords

Beams Capacity ratio Structural strengthening CFRP

Proceeding

Vol. 6 No. 1 (2026): The 11th CE ReForm

Track

General Track

License

Copyright (c) 2026 CE ReForm

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Abstract

Indonesia is an earthquake-prone region; therefore, building structures need to be evaluated to determine their ability to resist gravity and seismic loads in accordance with applicable standards. The addition of floors to a building can increase loads and internal forces acting on structural elements, causing beam capacities to potentially no longer satisfy structural strength requirements. Therefore, strengthening is required to improve the capacity of structural elements. One strengthening method that can be used is Carbon Fiber Reinforced Polymer (CFRP). This study aims to evaluate the capacity of beam structural elements in a hotel building in Ngampilan, Yogyakarta, which experienced the addition of one floor, and to analyze the effect of CFRP strengthening. The analysis was conducted using ETABS software to obtain internal structural forces. Structural evaluation was carried out by comparing the ultimate forces with the nominal capacity of structural elements multiplied by the strength reduction factor in accordance with SNI 2847:2019. Structural elements are considered satisfactory if they have a capacity ratio of less than one (R<1). The analysis results showed that several beams did not satisfy flexural and shear capacities due to the additional floor. Strengthening using CFRP in accordance with SNI 8971:2021 proved effective in improving structural capacity. CFRP laminate tape increased beam flexural capacity by 28% to 131%, while CFRP wrap increased beam shear capacity by 29% to 45%. The results indicate that the use of CFRP effectively improves the capacity of structural elements so that they satisfy structural strength requirements with a capacity ratio value of less than one (R<1).

References

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How to Cite

Jafar, J. (2026). Evaluasi dan perkuatan elemen struktur balok pada bangunan gedung hotel di yogyakarta menggunakan Carbon Fiber Reinforced Polymer (CFRP). CE ReForm, 6(1), 25-35. https://doi.org//jas4xf33