Reference Type:  Journal Article
Record Number: 1
Author: Ding, Y., Dai, X. M. and Yan, J. B.
Year: 2017
Title: Developments and behaviors of slip-released novel connectors in steel-concrete composite structures
Journal: Advanced Steel Construction
Volume: 15
Issue: 1
Pages: 7
Start Page: 30
Short Title: Developments and behaviors of slip-released novel connectors in steel-concrete composite structures
DOI: 10.18057/IJASC.2019.15.1.5
Keywords: Composite structures, Slip-released connectors, Push-out test, Finite element analysis, Shear resistance
Abstract: Effective connection between steel beam and concrete slab is the key issue for steel -concrete composite structures. The slip-released connectors were developed to overcome cracking of the concrete in the hogging moment region of a continuous beam. A full-scale push-out test with two specimens was conducted to investigate the slipping behaviors of the connectors. Test results offered useful information on the slipping behaviors of the connectors in terms of load-slip behaviors and failure modes. FE models were developed for the slip-released connectors and the accuracy of the FE simulation was checked by the reported test results. Two concepts of the connectors, i.e., an improved version with foamed plastic blocks covered by protecting shell and the sliding connectors were developed to improve the structural performances of the slip-released connectors. Numerical simulations results showed that both concepts could effectively release the shear force within their slipping allowed limit and could achieve the performance requirement of releasing slip.
Author Address: School of civil engineering, Tianjin University, Tianjin 300072, China