Experimental and finite element investigations on shear behaviors of stud connectors embedded in Engineered Cementitious Composite (ECC). (15th February 2023)

• Record Type: Journal Article
• Authors: Liu, Yiming; Bao, Yi; Deng, Lu; Zhang, Qinghua
• Is Part Of: Engineering structures. Volume 277(2023)
• Publication Date: 2023-02-15
• Subjects: Composite structure -- Engineered cementitious composite (ECC) -- Stud connector -- Finite element analysis -- Shear behavior; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2022.115438
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: Shear behaviors of studs embedded in ECC are studied. Effects of stud height-to-diameter ratio on the shear behaviors of the studs are evaluated. Formulas are provided to predict the shear capacity of studs embedded in ECC. Abstract: Engineered Cementitious Composite (ECC) exhibits superior mechanical properties such as high tensile strength, ductility, and toughness, which enable using thinner sections in steel-ECC composite structures. Existing design equations for the shear capacity of stud connectors were derived by regression analysis of test data from push-out specimens using normal concrete, which often have stud height-to-diameter ratios above 4. This research investigates the shear behaviors of stud connectors, with different height-to-diameter ratios from 2.73 to 4.62, embedded in ECC. Push-out tests showed that the height-to-diameter ratio is important for the shear capacity of studs. Finite element analysis was performed to evaluate the effects of the diameter, height-to-diameter ratio, and tensile strength of studs as well as the compressive properties of ECC on the shear behaviors. Regression analysis was performed using the analysis data to modify the equations for predicting the shear capacity of studs embedded in ECC for steel-ECC composite structures.