CORDIS - Forschungsergebnisse der EU
CORDIS

GREen Advanced TEchnologies for the Retrofitting of masonry Structures

Projektbeschreibung

Bewehrungsmatten aus Naturfasern zur Sanierung alter Gebäude

Urbane Sicherheit und die Minderung seismischer Risiken sind zwei Gründe, warum politische Entscheidungsträger und Bauingenieure weltweit mehr Ressourcen für historische Gebäude verwenden, die aus unbewehrtem Mauerwerk errichtet wurden. Im Laufe der vergangenen Jahrzehnte wurden verschiedene Umbau- und Befestigungsmethoden angewandt, um den Zustand der Gebäude zu verbessern, doch diese können kostspielig und arbeitsintensiv sein und äußerst störend wirken. Das EU-finanzierte Projekt GRE.A.TE.R.S. entwickelt eine nachhaltigere und kosteneffizientere Lösung, bei der in einer anorganischen Kalkmörtelmatrix eingebettete Bewehrungsmatten aus natürlichen Fasern genutzt werden. Laut dem Projekt kann diese zuverlässige Lösung so konstruiert werden, dass damit den spezifischen Leistungskriterien von Mauerwerksgebäuden entsprochen wird.

Ziel

Unreinforced masonry (URM) buildings constitute more than 70% of the existing building stock worldwide and make up the vast majority of the world’s cultural and architectural heritage. Although masonry has proven to be a highly versatile and durable construction material, much of the existing building stock in Europe and developing countries are non-engineered URM buildings, often built with weak materials and following poor construction practices. As a result, the majority of the existing building stock is in dire need of structural rehabilitation and strengthening. Traditional strengthening and rehabilitation techniques include grout or epoxy injections, crack stitching, surface overlays with mesh-reinforced concrete, chicken-wire or reinforced plaster, reinforced concrete jacketing as well as external/internal post tensioning. However, all of these techniques can affect significantly the dynamic response characteristics of the structure and can be costly, labour-intensive and highly obtrusive. In recent years, the use of advanced composite materials in civil engineering applications has increased exponentially, and the various retrofitting solutions that have been developed based on the implementation of these materials have proven to be very effective. However, the high performance of these advanced materials would not be effectively exploited on the less demanding masonry structures and the high material and installation costs would render them prohibitive in most European and developing countries. The proposed project aims to develop a novel strengthening solution that uses natural fibre meshes embedded in an inorganic lime-mortar matrix. The new system will provide a more sustainable and cost‐effective alternative and will provide a more reliable solution that can be engineered to meet the specific performance criteria of masonry buildings.

Koordinator

THE UNIVERSITY OF SHEFFIELD
Netto-EU-Beitrag
€ 212 933,76
Adresse
FIRTH COURT WESTERN BANK
S10 2TN Sheffield
Vereinigtes Königreich

Auf der Karte ansehen

Region
Yorkshire and the Humber South Yorkshire Sheffield
Aktivitätstyp
Higher or Secondary Education Establishments
Links
Gesamtkosten
€ 212 933,76