In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Coupled Damage Model For RC Elements Assessment Under Environmental Degradation
Author(s): Luisa Berto; Harald Budelmann; Irene Barbara Nina Finozzi; Anna Saetta and Diego Alejandro Talledo
Publication: Special Publication
Appears on pages(s): 5.1-5.10
Keywords: chemical attack; corrosion; damage model; concrete durability; frost and thaw attack
Abstract:In the present work, a coupled environmental-mechanical damage model for structural analysis of RC elements subjected to aggressive action - originally developed by some of the authors - is presented and further enhanced, introducing some innovative formulations. In particular the effect on structural performance of rebars corrosion, induced both by chloride attack and carbonation, and of freeze-thaw cycles is analyzed. To this aim, the environmental damage parameter is re-formulated and splitted in two contributions in order to better represent the degradation of concrete caused by cracking due to different processes (e.g. development of expansive products during corrosion, pressure induced by internal ice formation). The proposed models are implemented in the finite-element framework OpenSees, developed at Berkeley, University of California and validated by comparison with a number of experimental tests. In the first part of the paper the proposed constitutive models are introduced discussing the most relevant features and characteristics. Then, in the second part of the paper, the validation tests are presented and the obtained results are compared with experimental ones, proving that the model is suitably accurate in reproducing the main aspects observed during experiments: i.e. failure load, ultimate displacement and failure mode.
Click here to become an online Journal subscriber