Search

U novije vrijeme uz tradicionalne metode pojačanja ziđa na posmik, koriste se i noviji materijali i sustavi kao što su polimeri armirani vlaknima (FRP) i tekstilom armirani mortovi (TRM). Potres koji se dogodio u Zagrebu i okolici 22. ožujka 2020. pokazao je osjetljivost nearmiranih zidanih zgrada na horizontalna djelovanja, potrebu za sanacijom oštećenja na nosivom i nenosivom ziđu i pojačanjem ziđa na posmik. Postojeći propisi ne pokrivaju proračune pojačanja s takvim sustavima. U radu su prikazani suvremeni postupci pojačanja ziđa FRP-om ili TRM-om, znanstvena istraživanja iz tog područja, prednosti i nedostaci te proračun takvih pojačanja., In addition to traditional methods of strengthening shear masonry walls, some newer materials and systems, such as fibre reinforced polymers (FRP) and textile reinforced mortars (TRM), have recently been introduced. The earthquake that occurred in Zagreb and its surroundings on 22 March 2020 has revealed the sensitivity of unreinforced masonry buildings to horizontal actions, while pointing to the need to repair damage to load-bearing and non-load-bearing walls and to strengthen walls against shear failure. Existing regulations do not cover design of structures with such systems. The paper presents modern procedures for strengthening masonry with FRP or TRM, scientific research in this area, advantages and disadvantages, and calculation of such reinforcements.