Seismic design of elements outside of the short low-yield-point steel shear links. (March 2021)

• Record Type: Journal Article
• Authors: Ghadami, A.; Pourmoosavi, Gh.; Ghamari, A.
• Is Part Of: Journal of constructional steel research. Volume 178(2021)
• Publication Date: 2021-03
• Subjects: EBF -- Ultimate strength -- Short shear link -- LYP -- Slenderness; Steel, Structural -- Periodicals; Building, Iron and steel -- Periodicals; Acier de construction -- Périodiques; Construction métallique -- Périodiques; 624.1821
• DOI: 10.1016/j.jcsr.2020.106489
• Languages: English
• ISSNs: 0143-974X

Abstract

Abstract: This paper relies on the finite element method to find the safe factor considering the economical aspect to design members outside the short shear links with/without stiffeners constructed from low-yield-point (LYP) steels with nominal yield strength of 100 and 225 MPa . To this end, 147 I-shaped shear links with link length ratios in the range of 0.34–1.83 were numerically analyzed and compared. According to nonlinear finite element results, the classification of short links based on the link length ratio parameter, which has been used in past researches as a convenient measure of yield behavior, does not represent the actual characteristics and behavioral differences between short links. Accordingly, an effective parameter, namely non-dimensional plate slenderness, is introduced in the article. This parameter is employed to investigate the behavior of short links. Finally, the finite element results were used to modify the AISC341-16 design equation for predicting the maximum shear forces generated by the fully yielded and strain hardened shear links. Graphical abstract: Unlabelled Image Highlights: This study was focused on the estimating generated forces by (very) short low yield point (LYP) steel shear link to the design of elements outside of the link. The generated force by LYP shear links not only related to the length of links, but also to the slenderness of the links. New equations have been proposed to predict the maximum generated shear forces by LYP shear links.