Classification of failure modes in ductile and non-ductile concrete joints. (September 2019)

• Record Type: Journal Article
• Authors: Naderpour, Hosein; Mirrashid, Masoomeh
• Is Part Of: Engineering failure analysis. Volume 103(2019)
• Page Start: 361
• Page End: 375
• Publication Date: 2019-09
• Subjects: Classification -- Non-ductile -- Ductile joints -- Concrete joint -- Failure mode; System failures (Engineering) -- Periodicals; Fracture mechanics -- Periodicals; Reliability (Engineering) -- Periodicals; Pannes -- Périodiques; Rupture, Mécanique de la -- Périodiques; Fiabilité -- Périodiques; Fracture mechanics; Reliability (Engineering); System failures (Engineering); Periodicals; Electronic journals; 620.112
• DOI: 10.1016/j.engfailanal.2019.04.047
• Languages: English
• ISSNs: 1350-6307

Abstract

Abstract: In reinforced concrete structures, the behavior of beam-column connections has a significant effect on the overall behavior of the structure. Therefore, knowledge of the failure mode in these elements can be essential. In this article, two methods are proposed that can determine the failure mode type of the reinforced concrete joints, those with sufficient transverse reinforcement (ductile joints) and in concrete joints with no or little transverse reinforcement (non-ductile joints), in a probabilistic manner with high accuracy. For this purpose, two classification structures based on a number of classifiers for exterior and interiors concrete joints were utilized to determine the type of failure modes. A collection of laboratory tests were used to create and validate the classifications. It was concluded from the results that the models presented in this paper have the ability to determine the failure mode. The use of these models are simple and do not need any complex calculation. They also can be useful tools in structural engineering problems such as the initial investigation of damages in existing concrete structures or for retrofitting applications. Highlights: Two classifications based on a number of classifiers for concrete joints proposed to determine the type of failure modes. A collection of laboratory tests were used to create and validate the classifications. The proposed methods can quickly and only with a few simple comparison steps, be able to determine the failure modes. The proposed approach is beneficial in structural engineering problems, especially in retrofitting.