Integrated Structural and Energy Retrofitting of Masonry Walls: The Effect of In-Plane Damage on the Out-Of-Plane Response

Gkournelos P., Triantafillou T.

10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering (CICE), İstanbul, Turkey, 8 - 10 December 2021, vol.198, pp.1819-1836 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 198
  • Doi Number: 10.1007/978-3-030-88166-5_157
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.1819-1836
  • Keywords: Energy retrofitting, In-plane loading, Masonry walls, Out-of-plane loading, Seismic strengthening, Textile reinforced mortar, REINFORCED-CONCRETE FRAMES, BEHAVIOR, RC, COMPOSITES, CAPACITY, INFILLS
  • Istanbul Technical University Affiliated: No

Abstract

In the present study, a total of 12 experiments were carried out in order to evaluate the effect of prior in-plane damage on the out-of-plane response of structurally and thermally retrofitted masonry wallettes, simulating in a that way the behavior of upgraded masonry infills in reinforced concrete or steel frame structures under seismic loading. The specimens were retrofitted with textile-reinforced mortar (TRM), which in some cases was combined with expanded polystyrene as thermal insulation material. Testing comprised in-plane diagonal compression and out-of-plane bending on walls with or without prior in-plane damage. Numerical simulations were also performed using fiber modeling, and they were found in good agreement with test results. In-plane loaded walls with TRM only or TRM/insulation retrofitting outperformed significantly their non-retrofitted counterparts. Out-of-plane loaded walls with combined TRM/thermal insulation performed much better or at least as good as their TRM-only retrofitted counterparts, for the case with or without prior in-plane damage, respectively.