Durability design of new and existing structures is a key issue for the sustainable development of built-up environment. While the design procedure for reinforced concrete constructions was deeply investigated, the durability evaluation of metal structures has still to be fully analyzed and codified. The aim of this paper is to provide a first proposal for a general approach to the durability design of metal structures based on lifetime safety factor method. All the phases relevant to the design procedure have been discussed and defined in detail, according to a performance based approach. In particular, among the environmental deteriorating mechanisms which affect the durability of metal constructions, the atmospheric corrosion was considered. On the basis of the selected probabilistic corrosion models, which take into account different metal materials, corrosiveness of environment and effectiveness of coatings, the procedure for evaluating the design life corresponding to different environmental loads and limit states has been defined.
Durability design of metal structures based on lifetime safety factor method / Cascini, Lucrezia; Portioli, FRANCESCO PAOLO ANTONIO; Landolfo, Raffaele. - STAMPA. - 1:(2007), pp. 522-529. (Intervento presentato al convegno SB 07 - Substainable Construction, Material and Practices tenutosi a Lisbon nel 12-14 September 2007).
Durability design of metal structures based on lifetime safety factor method
CASCINI, LUCREZIA;PORTIOLI, FRANCESCO PAOLO ANTONIO;LANDOLFO, RAFFAELE
2007
Abstract
Durability design of new and existing structures is a key issue for the sustainable development of built-up environment. While the design procedure for reinforced concrete constructions was deeply investigated, the durability evaluation of metal structures has still to be fully analyzed and codified. The aim of this paper is to provide a first proposal for a general approach to the durability design of metal structures based on lifetime safety factor method. All the phases relevant to the design procedure have been discussed and defined in detail, according to a performance based approach. In particular, among the environmental deteriorating mechanisms which affect the durability of metal constructions, the atmospheric corrosion was considered. On the basis of the selected probabilistic corrosion models, which take into account different metal materials, corrosiveness of environment and effectiveness of coatings, the procedure for evaluating the design life corresponding to different environmental loads and limit states has been defined.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
