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All Journal Journal of Civil Engineering Civil Engineering Dimension
Benny Suryanto
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Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Crack Mapping on Shear-critical Reinforced Concrete Beams using an Open Source Digital Image Correlation Software Benny Suryanto; Asdam Tambusay; Priyo Suprobo
Civil Engineering Dimension Vol. 19 No. 2 (2017): SEPTEMBER 2017
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (686.224 KB) | DOI: 10.9744/ced.19.2.93-98

Abstract

Three reinforced concrete beams, one with no shear reinforcement and two others with shear reinforcement ratios of 0.4% and 1.1%, were tested to investigate the influence of stirrup spacing on the mode of failure, overall strength and ductility. The results show that the beam reinforced with closely-spaced shear reinforcement failed in a ductile manner, whereas the other two beams with large stirrup spacing and no stirrup exhibited only a small measure of ductility and failed in a brittle manner. The importance of the provisions of maximum spacing is highlighted to ensure adequate anchorage for the stirrups and prevent a premature shear failure to occur. The application of a non-contact monitoring system employing the open source digital image correlation software Ncorr, an ordinary digital camera and a smartphone is demonstrated to provide a visualization of the cracking process throughout the load history.
Modelling of Reinforced Concrete Coupling Beams with Headed Bars: Verification and Parametric Studies Joshua F. Krisnajana; Asdam Tambusay; Benny Suryanto; Priyo Suprobo
Journal of Civil Engineering Vol. 38 No. 3 (2023)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v38i03.7454

Abstract

This paper explores the accuracy of nonlinear finite element procedures implemented in ATENA in predicting the load-deformation response of reinforced concrete coupling beams with headed bars under reversed cyclic loading. In this study, the coupling beam (incorporating headed bars) tested by Seo and co-workers in 2017 is analysed and its response at different lateral drifts is discussed. Parametric analyses, studying the influence of reinforcement layouts, are also presented. It is shown that the hysteresis loops of the coupling beam could be predicted accurately, along with the crack patterns at different stages of loading and failure mode. It is also shown that the omittance of headed bars resulted in more pronounced bond-slip effects and a more severe pinched response in the post-peak region, highlighting the importance of providing adequate headed reinforcement. A similar trend was observed in the coupling beam with the omittance of U-bars and horizontal transverse reinforcements, whereas the reduction of stirrups was found to increase the prominence of shear failure.
Co-Authors Asdam Tambusay Joshua F. Krisnajana Priyo Suprobo