Article Per Year (5 Year)
p-Index From 2021 - 2026
1.288
P-Index
This Author published in this journals
All Journal Jurnal Teknik Sipil Civil Engineering Dimension Astonjadro Journal of the Civil Engineering Forum
Setiawan, Angga Fajar
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Transportation

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Civil Engineering Dimension

 1 
Finite Element Analysis of Plastic Behavior in RC Beam Supports with Composite Steel Deck Slabs under Cyclic Loading Brihaspati, Brihaspati; Saputra, Ashar; Setiawan, Angga Fajar; Sulistyo, Djoko
Civil Engineering Dimension Vol. 28 No. 1 (2026): MARCH 2026
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.28.1.34-45

Abstract

The performance of beam supports is essential for seismic resilience, particularly under the Strong Column–Weak Beam (SCWB) principle. To improve construction efficiency, steel deck-based composite slabs are increasingly adopted as alternatives to conventional slabs. However, their impact on the plastic behavior of beam supports remains underexplored. This study evaluates the influence of steel deck slabs using finite element analysis in ABAQUS. Two beam-column joint models—conventional and modified—were subjected to cyclic loading according to FEMA 461. The models incorporated stiffness recovery, combined hardening for steel, and a cohesive zone model (CZM) for the concrete–steel deck interface. Results indicate that the steel deck model shows a wider hysteresis loop and 2.425% higher energy dissipation, but experiences earlier reinforcement yielding and greater stiffness degradation. Although ductility increases, plastic hinges form at nearly the same cycle. Overall, the steel deck system improves energy absorption and ductility but reduces elastic stiffness and accelerates inelastic behavior.
Assessment and Strengthening of Bolted Connections in the Mandomai Bowstring Bridge Constructed with Ulin Wood Subchan, Shafira Khairunnisa; Awaludin, Ali; Akbar, Miqdad Khosyi; Tama, Radika Gandi; Setiawan, Angga Fajar; Yudhistira, Angga Trisna; Irawati, Inggar Septhia; Triwiyono, Andreas
Civil Engineering Dimension Vol. 28 No. 1 (2026): MARCH 2026
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.28.1.101-110

Abstract

This study assessed and proposed a retrofit strategy for bolted timber connections in the Mandomai pedestrian bridge, constructed from Ulin wood (Eusideroxylon zwageri). Numerical modeling, analytical evaluation using Eurocode 5 yield equations, and experimental validation were conducted. Axial forces from a global Midas Civil model under a 1.25 kN/m² live load showed three critical connections (S11, S13, S14) with demand-capacity ratios (DCR) exceeding 1.0. A retrofit using steel side plates and ASTM A325 bolts reduced DCRs to 0.79, 1.02, and 0.70, respectively. Experimental testing of limited full-scale double-shear wood-to-wood joints demonstrated an average ultimate capacity of 191 kN, which was 57.65% higher than the theoretical prediction, indicating the conservative nature of Eurocode 5 and the contribution of mechanisms such as the rope effect and frictional interlock. The results confirmed the retrofit’s effectiveness and highlighted the need to refine design provisions for dense tropical hardwoods.
Co-Authors Akbar, Miqdad Khosyi Ali Awaludin Andreas Triwiyono Ashar Saputra Brihaspati, Brihaspati Darmawan, M. Fauzi Djoko Sulistyo Haroki, Yusuf Henricus Priyosulistyo, Henricus heriawati, isnaini Iman Satyarno Irawati, Inggar Septhia Md Nor, Noorsuhada Pasya, Namira Risza Purnomo, Sidiq Septhia Irawati, Inggar Subchan, Shafira Khairunnisa Sumartono, Ignatius Harry Tama, Radika Gandi Yudhistira, Angga Trisna