Combined seismic and energy upgrading of existing reinforced concrete buildings using TRM jacketing and thermal insulation

Panagiotis D. Gkournelos, Dionysios A. Bournas, Thanasis Triantafillou

Research output: Contribution to journalArticle

Abstract

The concept of the combined seismic and energy retrofitting of existing reinforced concrete (RC) buildings was examined in this paper through a number of case studies conducted on model buildings (simulating buildings of the '60s-'80s in southern Europe) constructed according to outdated design standards. Specifically, seismic and thermal analyses have been conducted prior to and after the application of selected retrofitting schemes, in order to quantify the positive effect that retrofitting could provide to RC buildings both in terms of their structural and energy performance. Advanced materials, namely the textile reinforced mortars (TRM), were used for providing seismic retrofitting by means of jacketing of masonry infills in RC frames. Moreover, following the application of the TRM jackets, thermal insulation materials were simultaneously provided to the RC building envelope, exploiting the fresh mortar used to bind the TRM jackets. In addition to the externally applied insulation material, all the fenestration elements (windows and doors) were replaced with new high energy efficiency ones. Afterwards, an economic measure, namely the expected annual loss (EAL) was used to evaluate the efficiency of each retrofitting method, but also to assess whether the combined seismic and energy retrofitting is economically feasible. From the results of this preliminary study, it was concluded that the selected seismic retrofitting technique can indeed enhance significantly the structural behaviour of an existing RC building and lower its EAL related to earthquake risks. Finally, it was found that the combined seismic and energy upgrading is economically more efficient than a sole energy or seismic retrofitting scenario for seismic areas of south Europe.

Original languageEnglish (US)
Pages (from-to)625-639
Number of pages15
JournalEarthquake and Structures
Volume16
Issue number5
DOIs
StatePublished - May 1 2019

Fingerprint

Concrete buildings
Retrofitting
Thermal insulation
Mortar
Reinforced concrete
Textiles
Energy efficiency
Insulation
Earthquakes
Economics

Keywords

  • Advanced materials
  • Building envelope
  • Energy retrofitting
  • Infill strengthening
  • Textile reinforced mortar (TRM)
  • Thermal insulation

ASJC Scopus subject areas

  • Civil and Structural Engineering

Cite this

Combined seismic and energy upgrading of existing reinforced concrete buildings using TRM jacketing and thermal insulation. / Gkournelos, Panagiotis D.; Bournas, Dionysios A.; Triantafillou, Thanasis.

In: Earthquake and Structures, Vol. 16, No. 5, 01.05.2019, p. 625-639.

Research output: Contribution to journalArticle

@article{81c2f4f9f51c4ac9a0c7c194f7019cfd,
title = "Combined seismic and energy upgrading of existing reinforced concrete buildings using TRM jacketing and thermal insulation",
abstract = "The concept of the combined seismic and energy retrofitting of existing reinforced concrete (RC) buildings was examined in this paper through a number of case studies conducted on model buildings (simulating buildings of the '60s-'80s in southern Europe) constructed according to outdated design standards. Specifically, seismic and thermal analyses have been conducted prior to and after the application of selected retrofitting schemes, in order to quantify the positive effect that retrofitting could provide to RC buildings both in terms of their structural and energy performance. Advanced materials, namely the textile reinforced mortars (TRM), were used for providing seismic retrofitting by means of jacketing of masonry infills in RC frames. Moreover, following the application of the TRM jackets, thermal insulation materials were simultaneously provided to the RC building envelope, exploiting the fresh mortar used to bind the TRM jackets. In addition to the externally applied insulation material, all the fenestration elements (windows and doors) were replaced with new high energy efficiency ones. Afterwards, an economic measure, namely the expected annual loss (EAL) was used to evaluate the efficiency of each retrofitting method, but also to assess whether the combined seismic and energy retrofitting is economically feasible. From the results of this preliminary study, it was concluded that the selected seismic retrofitting technique can indeed enhance significantly the structural behaviour of an existing RC building and lower its EAL related to earthquake risks. Finally, it was found that the combined seismic and energy upgrading is economically more efficient than a sole energy or seismic retrofitting scenario for seismic areas of south Europe.",
keywords = "Advanced materials, Building envelope, Energy retrofitting, Infill strengthening, Textile reinforced mortar (TRM), Thermal insulation",
author = "Gkournelos, {Panagiotis D.} and Bournas, {Dionysios A.} and Thanasis Triantafillou",
year = "2019",
month = "5",
day = "1",
doi = "10.12989/eas.2019.16.5.625",
language = "English (US)",
volume = "16",
pages = "625--639",
journal = "Earthquake and Structures",
issn = "2092-7614",
publisher = "Techno Press",
number = "5",

}

TY - JOUR

T1 - Combined seismic and energy upgrading of existing reinforced concrete buildings using TRM jacketing and thermal insulation

AU - Gkournelos, Panagiotis D.

AU - Bournas, Dionysios A.

AU - Triantafillou, Thanasis

PY - 2019/5/1

Y1 - 2019/5/1

N2 - The concept of the combined seismic and energy retrofitting of existing reinforced concrete (RC) buildings was examined in this paper through a number of case studies conducted on model buildings (simulating buildings of the '60s-'80s in southern Europe) constructed according to outdated design standards. Specifically, seismic and thermal analyses have been conducted prior to and after the application of selected retrofitting schemes, in order to quantify the positive effect that retrofitting could provide to RC buildings both in terms of their structural and energy performance. Advanced materials, namely the textile reinforced mortars (TRM), were used for providing seismic retrofitting by means of jacketing of masonry infills in RC frames. Moreover, following the application of the TRM jackets, thermal insulation materials were simultaneously provided to the RC building envelope, exploiting the fresh mortar used to bind the TRM jackets. In addition to the externally applied insulation material, all the fenestration elements (windows and doors) were replaced with new high energy efficiency ones. Afterwards, an economic measure, namely the expected annual loss (EAL) was used to evaluate the efficiency of each retrofitting method, but also to assess whether the combined seismic and energy retrofitting is economically feasible. From the results of this preliminary study, it was concluded that the selected seismic retrofitting technique can indeed enhance significantly the structural behaviour of an existing RC building and lower its EAL related to earthquake risks. Finally, it was found that the combined seismic and energy upgrading is economically more efficient than a sole energy or seismic retrofitting scenario for seismic areas of south Europe.

AB - The concept of the combined seismic and energy retrofitting of existing reinforced concrete (RC) buildings was examined in this paper through a number of case studies conducted on model buildings (simulating buildings of the '60s-'80s in southern Europe) constructed according to outdated design standards. Specifically, seismic and thermal analyses have been conducted prior to and after the application of selected retrofitting schemes, in order to quantify the positive effect that retrofitting could provide to RC buildings both in terms of their structural and energy performance. Advanced materials, namely the textile reinforced mortars (TRM), were used for providing seismic retrofitting by means of jacketing of masonry infills in RC frames. Moreover, following the application of the TRM jackets, thermal insulation materials were simultaneously provided to the RC building envelope, exploiting the fresh mortar used to bind the TRM jackets. In addition to the externally applied insulation material, all the fenestration elements (windows and doors) were replaced with new high energy efficiency ones. Afterwards, an economic measure, namely the expected annual loss (EAL) was used to evaluate the efficiency of each retrofitting method, but also to assess whether the combined seismic and energy retrofitting is economically feasible. From the results of this preliminary study, it was concluded that the selected seismic retrofitting technique can indeed enhance significantly the structural behaviour of an existing RC building and lower its EAL related to earthquake risks. Finally, it was found that the combined seismic and energy upgrading is economically more efficient than a sole energy or seismic retrofitting scenario for seismic areas of south Europe.

KW - Advanced materials

KW - Building envelope

KW - Energy retrofitting

KW - Infill strengthening

KW - Textile reinforced mortar (TRM)

KW - Thermal insulation

UR - http://www.scopus.com/inward/record.url?scp=85066294501&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85066294501&partnerID=8YFLogxK

U2 - 10.12989/eas.2019.16.5.625

DO - 10.12989/eas.2019.16.5.625

M3 - Article

AN - SCOPUS:85066294501

VL - 16

SP - 625

EP - 639

JO - Earthquake and Structures

JF - Earthquake and Structures

SN - 2092-7614

IS - 5

ER -