Abstract
The occurrence of earthquakes is inevitable event, that has happened in the past and will happen in the future. Their impact to the human life and the damage they cause is strictly governed by the design of the structures and the quality of construction. Even though nowadays the earthquake engineering science is highly developed there is no flawless project and in case of high seismic events damages do occur on new structures as well as on the existing ones.
This research deals with specific types of damaged reinforced concrete elements – hinges on frame structural elements. The simple yet effective application of polyurethanes leads to rapid repair of damaged elements allowing structures to be operational during the period of earthquake aftershocks but also in future exploitation period. Two specimens of reinforced concrete columns have been experimentally tested via quasi-static method in two phases. Each one was first tested in its original state by cyclic loading. After formation of hinges next to the fixing points the polyurethane repair was applied, and then the repaired columns were tested again. Linear variable differential transformers, strain gauges and load cells were used to follow the desired physical quantities at any time step of the testing.
The results show promising outcomes in terms of real scale application of the repair method. The ductility was increased while maintaining the bearing capacity of the column for additional cyclic deformations. Perfect bonding of the polyurethane to the concrete was observed, allowing further development of the proposed concept.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
USGS webpage. https://www.usgs.gov/faqs/why-are-we-having-so-many-earthquakes-has-naturally-occurring-earthquake-activity-been. Accessed 05 Jan 2023
Erdem D et al (2015) Damages and causes on the structures during the October 23, 2011 Van earthquake in Turkey. Case Stud Constr Mater 3:112–131
Ates S et al (2013) Damages on reinforced concrete buildings due to consecutive earthquakes in Van. Soil Dyn Earthq Eng 53:109–118
Sezen H et al (2002) Performance of reinforced concrete buildings during the August 17, 1999 Koaceli, Turkey earthquake and seismic design and construction practice in Turkey. Eng Struct 25:103–114
Decanini LD et al (2012) Damage potential of the 2009 L’Aquila, Italy earthquake. J Earthq Tsunami 6:1250032
Ruiz Pinilla JG et al (2016). Learning from RC building structures damaged by the earthquake in Lorca, Spain in 2016. Eng Fail Anal 68:76–86
Kwiecień A, Krajewski P, Hojdys Ł, Tekieli M, Słoński M (2018) Flexible adhesive in composite-to-brick strengthening – experimental and numerical study. Polymers 10:356
Rousakis T et al (2020) Deformable polyurethane joints and fibre grids for resilient seismic performance of reinforced concrete frames with Orthoblock brick infills. MDPI Polym 12:2869
Zdanowicz Ł, Seręga S, Tekieli M, Kwiecień A (2020) Polymer flexible joint as a repair method of concrete elements: flexural testing and numerical analysis. MDPI Mater 13:5732
Viskovic A, Zuccarino L, Kwiecień A, Gams BZM (2017) Quick seismic protection of weak masonry infilling in filled framed structures using flexible joints. Key Eng Mater 747:628–637
Hojdys Ł et al (2023) Quick repair of damaged infill walls with externally bonded FRPU Composites: shake table tests. ASCE J Compos Constr 27(1):1–22
Kwiecień A et al: PUFJ and FRPU earthquake protection of infills tested in resonance. In: 1st Croatian conference on earthquake engineering, 1CroCEE, Zagreb, Croatia, pp 465–475
Kwiecień K, Kwiecień A, Stryszewska T, Szumera M, Dudek, M (2020) Durability of PS-polyurethane dedicated for composite strengthening applications in masonry and concrete structures. Polymers 12:2830. https://doi.org/10.3390/polym12122830, pp 1–16
Acknowledgements
This research was supported by the University ss. “Cyril and Methodius” in Skopje, Republic of N. Macedonia as a part of the annual call for grants for research project for the year 2021/2022.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2023 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Manojlovski, F., Rakicevic, Z., Kwiecień, A., Bogdanovic, A., Shoklarovski, A., Poposka, A. (2023). Repair of Reinforced Concrete Column Hinges by Polyurethane Jacketing. In: Ilki, A., Çavunt, D., Çavunt, Y.S. (eds) Building for the Future: Durable, Sustainable, Resilient. fib Symposium 2023. Lecture Notes in Civil Engineering, vol 349. Springer, Cham. https://doi.org/10.1007/978-3-031-32519-9_185
Download citation
DOI: https://doi.org/10.1007/978-3-031-32519-9_185
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-32518-2
Online ISBN: 978-3-031-32519-9
eBook Packages: EngineeringEngineering (R0)