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All Journal Sondir Composite: Journal of Civil Engineering
Andhika Mahendra
Universitas Tanri Abeng
Civil Engineering, Building, Construction & Architecture Engineering Transportation

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The Effect of CFRP Flexural Reinforcement on Ductility, Stiffness, and Energy Dissipation of T-Beam Numerically Andhika Mahendra; Muslikh Muslikh
Composite: Journal of Civil Engineering Vol. 4 No. 2 (2025): December 2025
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/cjce.v4i2.16302

Abstract

Kerusakan struktur di Indonesia sering terjadi akibat bencana dan kurangnya perawatan. Perkuatan struktur diperlukan agar bangunan tetap berfungsi, salah satunya dengan CFRP (Carbon Fiber Reinforced Polymer) yang dikenal mampu meningkatkan kapasitas beban. Namun, CFRP dapat menurunkan daktilitas, membuat struktur menjadi lebih kaku dan getas, yang berisiko kegagalan struktur. Penelitian ini mengkaji pengaruh penguatan lentur CFRP pada balok T pasca retak menggunakan metode elemen hingga yang divalidasi dengan data eksperimen sebelumnya. Tiga variasi diuji: balok kontrol, balok dengan CFRP sepanjang bentang, dan CFRP setengah bentang. Hasil menunjukkan bahwa kekakuan dari simulasi lebih tinggi dari eksperimen dikarenakan keadaan ideal pada numerik sedangkan, studi eksperimental terjadi slip yang tidak bisa dijustifikasi. Perbedaan beban leleh dan beban maksimum kurang dari 5%, menunjukkan simulasi valid. Hasil pengujian dengan variasi panajang CFRP menunjukkan balok dengan penguatan penuh menunjukkan kinerja terbaik dengan peningkatan kapasitas beban dan disipasi energi.
Simulasi Numerik Perkuatan Lentur Balok T yang Mengalami Retak Awal Menggunakan CFRP (Carbon Fiber Reinforced Polymer) Andhika Mahendra
SONDIR Vol. 10 No. 1 (2025): JURNAL SONDIR
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/sondir.v10i1.18229

Abstract

Substandard structural maintenance and natural disasters could impair the structure. However, numerous structures could still be utilized even though the safety level and load capacity diminished. Thus, the structure members needed to be strengthened. One of the most widely applied solutions was the use of Carbon Fiber Reinforced Polymeric (CFRP). CFRP was made from fiber and carbon that can increase the capacity of structure. Therefore, numerical simulation of T-beam strengthened with CFRP in flexural area was important. Because a good agreement results of numerical simulations compared with experimental could reduce cost where numerical simulations could be a tool to carry out further parameter studies without experimental testing. The purpose was to perform a numerical simulation validated by experimental testing from Mulyanto (2020). ABAQUS software was used for simulation. The idealized components included concrete beams, loads, and supports represented as 3D solid elements. The reinforcing steel was modeled as a truss element and conventional shell element was used for modeling CFRP. The model’s dimensions and loading were based on experimental. Factors such as the strength of reinforcing steel, the number of layers of composite layers, and the interaction between concrete and CFRP were utilized to align the experimental results. The results showed that the difference of yield and ultimate load between numerical simulation and the experimental was less than 5%. Therefore, the result of numerical simulation had a good agreement with the experimental.
Co-Authors Muslikh Muslikh