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Kohar Yudoprasetyo
Institut Teknologi Sepuluh Nopember
Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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MODELING PULL-OUT BEHAVIOR OF THE DEFORMED REBAR EMBEDDED INSIDE THE REINFORCED CONCRETE Kohar Yudoprasetyo; Bambang Piscesa; Harun Alrasyid
Journal of Civil Engineering Vol 37, No 1 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v37i1.11871

Abstract

Abstract: This study presents the modeling of the pull-out behavior of deformed bars embedded inside the reinforced concrete element. The simulation uses an in-house finite element package called 3D-NLFEA. Sufficiently small solid elements that consider the frictional resistance and mechanical interlocking between the bar thread and the concrete matrix were used in the simulation. The effect of concrete compressive strength, cover thickness, and stirrup configuration on the pull-out capacity of the modeled specimens are investigated thoroughly. The modeling found out that the 3D-NLFEA package can capture the bond-fracture process at the interface between the bars and concrete. The fracture that occurs in the concrete was dominated by tensile splitting failure. The presence of stirrups that confined the concrete and restrained the crack propagation significantly influences the pull-out capacity, cracking pattern, and failure behavior at the bar interface with the concrete. The analysis results from 3D-NLFEA are also compared with the 3D-RBSM analysis results available in the literature. From the comparison between the two packages, it can be concluded that the analysis result from 3D-NLFEA is somewhat more conservative compared to the 3D-RBSM.
Integrasi Bridge Management System (BMS) dan Non-Destructive Testing (NDT) untuk Prediksi Umur Jembatan pada Ruas Jalan Jawa Timur Kohar Yudoprasetyo; Moh. Fadhlan Rosyidi; Ifarrel Rachmanda Hariyanto; Yosi Noviari Wibowo; Moh. Safi’i Mansur
SAINSTEK Vol. 14 No. 1 (2026)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/js.v14i1.432

Abstract

Penelitian ini bertujuan untuk mengeksplorasi penggunaan Bridge Management System (BMS) yang digabungkan dengan pengujian Non-Destructive Testing (NDT) berupa Ultrasonic Pulse Velocity (UPV) dan Schmidt Hammer Test untuk menilai kondisi jembatan pada ruas jalan Batas Kabupaten Lamongan – Batas Kota Gresik. Analisis dilakukan dengan tujuan untuk mengembangkan model prediksi umur jembatan yang lebih akurat dengan mengintegrasikan hasil survei visual dan data teknis dari uji NDT. Hasil penelitian menunjukkan bahwa nilai kondisi jembatan (NK) memiliki hubungan yang signifikan dengan mutu beton yang diukur menggunakan metode NDT, di mana semakin tinggi nilai NK, semakin rendah kualitas beton dan kecepatan rambat gelombang ultrasonik. Berdasarkan model prediksi, jembatan dengan nilai kondisi lebih baik diprediksi memiliki umur sisa yang lebih panjang, sementara jembatan dengan nilai kondisi lebih buruk memerlukan tindakan pemeliharaan lebih mendesak. Penelitian ini memberikan kontribusi terhadap pengembangan sistem manajemen jembatan yang lebih efisien, meningkatkan keselamatan infrastruktur, serta memberikan rekomendasi pemeliharaan berbasis data untuk jembatan-jembatan yang terletak di koridor strategis Provinsi Jawa Timur.
Co-Authors Alrasyid, Harun Bambang Piscesa Ifarrel Rachmanda Hariyanto Moh. Fadhlan Rosyidi Moh. Safi’i Mansur Yosi Noviari Wibowo