Service life design of concrete structures, part 1: Durability and reliability concept

Abstract

The paper deals with service life design of concrete structures, as a design approach based on reliability methods comparable to load design as we are used to have it in design codes. To do that, it is necessary to quantify the deterioration mechanism with realistic models describing the process physically and chemically with sufficient accuracy. This means that all the parameters on the load side (the environmental actions) and on the resistance side (the resistance of the concrete against the considered environmental actions) must be statistically described and quantified, to enable verification of considered limit states with probabilistic methods. .

U radu je prikazan nov način tretiranja aspekata trajnosti betonskih konstrukcija i projektovanja s obzirom na trajnost, tj. koncept projektovanja betonskih konstrukcija s obzirom na njihov upotrebni vek. Ovaj koncept se bazira na pouzdanosti, slično kao i konvencionalni način projektovanja konstrukcija prema nosivosti. Osnovni preduslov je poznavanje deterioracionih mehanizama kako bi mogli da se formiraju fizički i hemijski modeli za simuliranje mehanizama oštećenja. Promenljive u modelima treba da budu kvantifikovane i statistički opisane kako bi bilo moguće da se nekim od probabilističkih pristupa izvedu proračunski dokazi razmatranih graničnih stanja. .