Steel Reinforced Polymers Enhance Strength and Ductility of Beam-Column Joints under Seismic Loads

Izi, Ridvan; El-Badry, Mamdouh; Ibrahim, Hatem

doi:10.1061/41016(314)114

Cited by 1 publication

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, by focusing on the strengthening of RC beam-column joints, the literature is even more poor when compared with the information available for FRP systems. Among the few published papers, the experimental study by Izi et al (2008) is mentioned, but performed on four 1/2-scale two-dimensional exterior joints strengthened with SRPs. Although the tested specimens did not faithfully represent the existing beam-columns subassemblies due to the absence of one beam (in the case of corner joints) or two beams (in the case of façade frames) in the transverse directions, test results clearly showed the SRP effectiveness in increasing the ductility and the strength of a beam-column joint with insufficient (or no) shear reinforcement.…”

Section: Introductionmentioning

confidence: 99%

Full Scale Reinforced Concrete Beam-Column Joints Strengthened with Steel Reinforced Polymer Systems

2017

View full text Add to dashboard Cite

This paper presents the results of an experimental campaign performed at the Laboratory of Materials and Structural Testing of the University of Salerno (Italy) in order to investigate the seismic performance of reinforced concrete (RC) beam-column joints strengthened with steel reinforced polymer (SRP) systems. With the aim to represent typical façade frames' beam-column subassemblies found in existing RC buildings, specimens were provided with two short beam stubs orthogonal to the main beam and were designed with inadequate seismic details. Five members were strengthened by using two different SRP layouts while the remaining ones were used as benchmarks. Once damaged, two specimens were also repaired, retrofitted with SRP, and subjected to cyclic test again. The results of cyclic tests performed on SRP strengthened joints are examined through a comparison with the outcomes of the previous experimental program including companion specimens not provided with transverse beam stubs and strengthened by carbon fiber-reinforced polymer (CFRP) systems. In particular, both qualitative and quantitative considerations about the influence of the confining effect provided by the secondary beams on the joint response, the suitability of all the adopted strengthening solutions (SRP/CFRP systems), the performances and the failure modes experienced in the several cases studied are provided.

show abstract

Section: Introductionmentioning

confidence: 99%