Experimental and finite element investigations on shear behaviors of stud connectors embedded in Engineered Cementitious Composite (ECC)

Yiming Liu, Yi Bao, Lu Deng, Qinghua Zhang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

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.

Original languageEnglish
Article number115438
JournalEngineering Structures
Volume277
DOIs
StatePublished - 15 Feb 2023

Keywords

  • Composite structure
  • Engineered cementitious composite (ECC)
  • Finite element analysis
  • Shear behavior
  • Stud connector

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