All Outputs (24)

A review on the shear performance of reinforced concrete (RC) beams strengthened with externally bonded mortar-based composites (2023)
Journal Article
Liu, X., & Thermou, G. E. (2023). A review on the shear performance of reinforced concrete (RC) beams strengthened with externally bonded mortar-based composites. Structures, 58, Article 105474. https://doi.org/10.1016/j.istruc.2023.105474

This paper reviews the performance of shear strengthened reinforced concrete (RC) beams with the use of externally bonded mortar-based composite jackets (e.g. FRCM, ECC, UHPFRC). An experimental database was compiled gathering all the known studies i... Read More about A review on the shear performance of reinforced concrete (RC) beams strengthened with externally bonded mortar-based composites.

Bond behaviour of light and heavy carbon fibre TRM to masonry interfaces (2023)
Journal Article
Makashev, K., Triantafyllou, S. P., Thermou, G. E., & Tizani, W. (2023). Bond behaviour of light and heavy carbon fibre TRM to masonry interfaces. Construction and Building Materials, 400, Article 132508. https://doi.org/10.1016/j.conbuildmat.2023.132508

We present the results of an experimental campaign on the bond behaviour between carbon fibre textile reinforced mortars and masonry substrate. The campaign involved 54 single lap direct shear tests on masonry wallettes reinforced with a single TRM l... Read More about Bond behaviour of light and heavy carbon fibre TRM to masonry interfaces.

Impact resistance of concrete and fibre-reinforced concrete: a review (2023)
Journal Article
Esaker, M., Thermou, G., & Neves, L. (2023). Impact resistance of concrete and fibre-reinforced concrete: a review. International Journal of Impact Engineering, 180, Article 104722. https://doi.org/10.1016/j.ijimpeng.2023.104722

This paper summarises the research carried out to date on the impact resistance of concrete subjected to different impact load regimes, with a focus on high-velocity projectile impact load. An experimental database is compiled on the response of conc... Read More about Impact resistance of concrete and fibre-reinforced concrete: a review.

Delaying the Occurrence of Bar Buckling in RC Columns Confined with SRG Jacketing (2023)
Journal Article
Thermou, G. E., & Tastani, S. (2023). Delaying the Occurrence of Bar Buckling in RC Columns Confined with SRG Jacketing. Applied Sciences, 13(12), Article 7232. https://doi.org/10.3390/app13127232

This paper investigates experimentally the structural performance of substandard reinforced concrete (RC) short columns confined with steel-reinforced grout (SRG) jackets under monotonically increasing uniaxial compression. The study comprised 24 squ... Read More about Delaying the Occurrence of Bar Buckling in RC Columns Confined with SRG Jacketing.

An Example-Guide for Rapid Seismic Assessment and FRP Strengthening of Substandard RC Buildings (2022)
Journal Article
Tastani, S., & Thermou, G. (2022). An Example-Guide for Rapid Seismic Assessment and FRP Strengthening of Substandard RC Buildings. Applied Sciences, 12(24), Article 12950. https://doi.org/10.3390/app122412950

This paper presents a rapid seismic assessment and Fibre Reinforced Polymer (FRP) retrofit design methodology which relies on the European design guidelines recently published in Chapter 8 of fib Bulletin 90 on the use of externally applied FRP reinf... Read More about An Example-Guide for Rapid Seismic Assessment and FRP Strengthening of Substandard RC Buildings.

Micromechanical homogenisation of steel bars in reinforced concrete for damage analysis (2022)
Journal Article
Drougkas, A., Sarhosis, V., & Thermou, G. (2022). Micromechanical homogenisation of steel bars in reinforced concrete for damage analysis. Materials Today Communications, 31, Article 103235. https://doi.org/10.1016/j.mtcomm.2022.103235

A homogenisation scheme based on inclusion modelling is coupled with constitutive laws for damage and implemented in a finite element model for the simulation of concrete and reinforcement bar damage in reinforced concrete structures. The scheme is e... Read More about Micromechanical homogenisation of steel bars in reinforced concrete for damage analysis.

Background to the Monolithicity Factors for the Assessment of Jacketed Reinforced Concrete Columns (2022)
Journal Article
Thermou, G. E., & Kappos, A. J. (2022). Background to the Monolithicity Factors for the Assessment of Jacketed Reinforced Concrete Columns. Buildings, 12(1), Article 55. https://doi.org/10.3390/buildings12010055

The paper presents the background to the expressions adopted in the new Eurocode 8—3 for jacketed reinforced concrete columns. These are based on the commonly adopted concept of monolithicity factors (ratios of resistance of the jacketed section to t... Read More about Background to the Monolithicity Factors for the Assessment of Jacketed Reinforced Concrete Columns.

Bond behaviour of multi-ply steel reinforced grout composites (2021)
Journal Article
Thermou, G. E., De Santis, S., de Felice, G., Alotaibi, S., Roscini, F., Hajirasouliha, I., & Guadagnini, M. (2021). Bond behaviour of multi-ply steel reinforced grout composites. Construction and Building Materials, 305, Article 124750. https://doi.org/10.1016/j.conbuildmat.2021.124750

This paper presents an experimental investigation on Steel Reinforced Grout (SRG) systems comprising multiple layers of galvanized UHTSS textiles, with either 4 or 8 cords/in density, embedded within a geopolymer mortar. Lap-splice tests and single-l... Read More about Bond behaviour of multi-ply steel reinforced grout composites.

Structural performance of RC columns retrofitted with steel-reinforced grout jackets under combined axial and lateral loading (2021)
Journal Article
Thermou, G. E., Papanikolaou, V. K., & Hajirasouliha, I. (2021). Structural performance of RC columns retrofitted with steel-reinforced grout jackets under combined axial and lateral loading. Engineering Structures, 245, Article 112946. https://doi.org/10.1016/j.engstruct.2021.112946

The effectiveness of steel-reinforced grout (SRG) jacketing in improving the structural performance of deficient reinforced concrete (RC) columns is experimentally investigated in this study. Four full-scale cantilever columns were designed following... Read More about Structural performance of RC columns retrofitted with steel-reinforced grout jackets under combined axial and lateral loading.

A FEM-based model to study the behavior of SRG-strengthened R/C beams (2021)
Journal Article
Katsamakas, A. A., Papanikolaou, V. K., & Thermou, G. E. (2021). A FEM-based model to study the behavior of SRG-strengthened R/C beams. Composite Structures, 266, 113796. https://doi.org/10.1016/j.compstruct.2021.113796

In this paper, a new time‐effective modeling approach is proposed for predicting the response of shear‐deficient reinforced concrete (R/C) beams strengthened with steel‐reinforced grout (SRG) jackets. Solid finite elements are utilized for concrete... Read More about A FEM-based model to study the behavior of SRG-strengthened R/C beams.

Steel-Reinforced Grout (SRG) Strengthening of Shear-Critical RC Beams (2019)
Journal Article
Thermou, G., Papanikolaou, V., Lioupis, C., & Hajirasouliha, I. (2019). Steel-Reinforced Grout (SRG) Strengthening of Shear-Critical RC Beams. Construction and Building Materials, 216, 68-83. https://doi.org/10.1016/j.conbuildmat.2019.04.259

This paper investigates the effectiveness of Steel-Reinforced Grout (SRG) jackets to strengthen shear critical reinforced concrete (RC) beams. Eleven RC beams were tested in three-point bending. Key parameters of investigation were the strengthening... Read More about Steel-Reinforced Grout (SRG) Strengthening of Shear-Critical RC Beams.

Compressive behaviour of concrete columns confined with steel-reinforced grout jackets (2017)
Journal Article
Thermou, G. E., & Hajirasouliha, I. (2018). Compressive behaviour of concrete columns confined with steel-reinforced grout jackets. Composites Part B: Engineering, 138, 222-231. https://doi.org/10.1016/j.compositesb.2017.11.041

This paper investigates the compressive strength of concrete columns confined with a new jacketing system using high strength steel reinforced fabrics embedded in an inorganic matrix (SRG). A comprehensive experimental programme was conducted on 52 c... Read More about Compressive behaviour of concrete columns confined with steel-reinforced grout jackets.

Experimental investigation of substandard RC columns confined with SRG jackets under compression (2017)
Journal Article
Thermou, G. E., Katakalos, K., & Manos, G. (2018). Experimental investigation of substandard RC columns confined with SRG jackets under compression. Composite Structures, 184, 56-65. https://doi.org/10.1016/j.compstruct.2017.09.082

This paper aims to explore the behaviour of substandard reinforced concrete (RC) columns confined with Steel-Reinforced Grout (SRG) jackets under monotonically increasing uniaxial compression. A total of 24 specimens of short RC columns of square cro... Read More about Experimental investigation of substandard RC columns confined with SRG jackets under compression.

Behaviour of rehabilitated RC beams with self-compacting concrete jacketing – Analytical model and test results (2014)
Journal Article
Chalioris, C. E., Thermou, G. E., & Pantazopoulou, S. J. (2014). Behaviour of rehabilitated RC beams with self-compacting concrete jacketing – Analytical model and test results. Construction and Building Materials, 55, 257-273. https://doi.org/10.1016/j.conbuildmat.2014.01.031

The use of thin reinforced self-compacting concrete jackets as a method to repair and strengthen under-designed flexural concrete members is investigated by means of experimental and analytical studies. The experimental component comprises 20 beam te... Read More about Behaviour of rehabilitated RC beams with self-compacting concrete jacketing – Analytical model and test results.

Concrete confinement with steel-reinforced grout jackets (2014)
Journal Article
Thermou, G. E., Katakalos, K., & Manos, G. (2015). Concrete confinement with steel-reinforced grout jackets. Materials and Structures, 48(5), 1355-1376. https://doi.org/10.1617/s11527-013-0239-6

The potential of steel fiber reinforced jackets combined with inorganic matrix (cementitious grout matrix) as an alternative strengthening system to fiber-reinforced polymer (FRP) jackets was investigated experimentally in the current study. For this... Read More about Concrete confinement with steel-reinforced grout jackets.

Retrofit Yield Spectra–a practical device in seismic rehabilitation (2012)
Journal Article
Thermou, G., Elnashai, A., & Pantazopoulou, S. (2012). Retrofit Yield Spectra–a practical device in seismic rehabilitation. Earthquakes and Structures, 3(2), 141-168. https://doi.org/10.12989/eas.2012.3.2.141

The Retrofit Yield Spectrum (RYS) is a new spectrum-based device that relates seismic demand of a retrofitted structure with the fundamental design parameters of the retrofit. This is obtained from superposition of Yield Point Spectra with design cha... Read More about Retrofit Yield Spectra–a practical device in seismic rehabilitation.

Global Interventions for Seismic Upgrading of Substandard RC Buildings (2011)
Journal Article
Thermou, G. E., Pantazopoulou, S. J., & Elnashai, A. S. (2012). Global Interventions for Seismic Upgrading of Substandard RC Buildings. Journal of Structural Engineering, 138(3), 387-401. https://doi.org/10.1061/%28asce%29st.1943-541x.0000474

A methodology is developed in this paper for the design and proportioning of interventions for seismic upgrading of substandard reinforced-concrete (RC) buildings. The retrofit approach is presented in the form of a simple design tool that aims towa... Read More about Global Interventions for Seismic Upgrading of Substandard RC Buildings.

Assessment indices for the seismic vulnerability of existing R.C. buildings (2010)
Journal Article
Thermou, G. E., & Pantazopoulou, S. J. (2011). Assessment indices for the seismic vulnerability of existing R.C. buildings. Earthquake Engineering and Structural Dynamics, 40(3), 293-313. doi:10.1002/eqe.1028

The seismic vulnerability of old multi?storey reinforced concrete (R.C.) buildings reinforced with substandard details is assessed as a function of interstorey drift demand imposed by the design earthquake while considering brittle termination of ela... Read More about Assessment indices for the seismic vulnerability of existing R.C. buildings.

Design and assessment spectra for retrofitting of RC buildings (2010)
Journal Article
Thermou, G. E., Elnashai, A. S., & Pantazopoulou, S. J. (2010). Design and assessment spectra for retrofitting of RC buildings. Journal of Earthquake Engineering, 14(5), 743-770. doi:10.1080/13632460903410764

This article presents a novel approach for deriving Retrofit Design Spectra (RDS) that are intended for use in preliminary development and assessment of seismic upgrading scenarios of existing structures. The new spectral representation relates the c... Read More about Design and assessment spectra for retrofitting of RC buildings.

Fiber-Reinforced Polymer Retrofitting of Predamaged Substandard RC Prismatic Members (2009)
Journal Article
Thermou, G. E., & Pantazopoulou, S. J. (2009). Fiber-Reinforced Polymer Retrofitting of Predamaged Substandard RC Prismatic Members. Journal of Composites for Construction, 13(6), 535-546. doi:10.1061/(asce)cc.1943-5614.0000057

An experimental study was conducted to investigate the efficiency of FRP jackets in upgrading the seismic behavior of lightly reinforced concrete prismatic members previously damaged under a combination of axial compression and a reversed cyclic late... Read More about Fiber-Reinforced Polymer Retrofitting of Predamaged Substandard RC Prismatic Members.