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: On the cracking behaviour of the reinforced concrete tension chord under repeated loading
Author(s): Carlos Zanuy, Luis Albajar, Fuente de la
Appears on pages(s): 611-632
Keywords: Reinforced concrete, Cracking, Repeated loading, Bond
Abstract:It is well known that repeated loads lead to increasing crack widths and deformations of reinforced concrete members. This is due to the progressive reduction of the parameters influencing the bond mechanism at the steel-concrete interface. However, current engineering methods employ severe simplifications to account for this influence, in particular to estimate values under permanent load. In this paper a model is presented to reproduce the distribution of longitudinal stresses and strains, bond stresses and relative slips along the crack spacing of a reinforced concrete tie with number of cycles. The model allows for a better understanding of the mechanical degradation sources affecting the evolution of tension-stiffening contribution. On the one hand, a cyclic degradation law is introduced to affect the local bond-slip behaviour. On the other hand, the mechanical damage of concrete is also introduced in the analysis. A parametric study is reported to show the role played by the different sources of degradation. Finally, the model capabilities are employed to analyse own experimental results.
International union of laboratories and experts in construction materials, systems and structures, International Partner Access.
View Resource »