TY - JOUR
T1 - Circular perforated steel yielding demountable shear connector for sustainable precast composite floors
AU - He, Jun
AU - Vasdravellis, George
AU - Wang, Sihao
N1 - Funding Information:
The authors gratefully acknowledge the financial support provided by the National Nature Science Foundations of China (51978081), Horizon 2020- Marie Sk?odowska-Curie Individual Fellowship of European Commission (REUSE: 793787).
Funding Information:
The authors gratefully acknowledge the financial support provided by the National Nature Science Foundations of China (51978081), Horizon 2020-Marie Skłodowska-Curie Individual Fellowship of European Commission (REUSE: 793787).
Publisher Copyright:
Copyright © 2021 Techno-Press, Ltd.
PY - 2021/6/25
Y1 - 2021/6/25
N2 - A circular steel-yielding demountable shear connector is proposed. The connector consists of a short perforated circular hollow section (CHS) welded on a base plate which in turn is bolted on the top flange of a steel section. The connector provides longitudinal shear resistance in all directions through yielding of steel and is used in conjunction with precast hollow core slab units. The mechanical behaviour is first studied using a previously validated detailed finite element model simulating horizontal pushout tests, by conducting a series of parametric studies to identify all failure modes of the novel connector. Based on the results of the numerical pushout tests, design equations to predict the strength of the connector are proposed. A composite beam using hollow core slabs and various degrees of shear connection is then simulated to verify the applicability of the circular connector and the implications in the design of composite beams.
AB - A circular steel-yielding demountable shear connector is proposed. The connector consists of a short perforated circular hollow section (CHS) welded on a base plate which in turn is bolted on the top flange of a steel section. The connector provides longitudinal shear resistance in all directions through yielding of steel and is used in conjunction with precast hollow core slab units. The mechanical behaviour is first studied using a previously validated detailed finite element model simulating horizontal pushout tests, by conducting a series of parametric studies to identify all failure modes of the novel connector. Based on the results of the numerical pushout tests, design equations to predict the strength of the connector are proposed. A composite beam using hollow core slabs and various degrees of shear connection is then simulated to verify the applicability of the circular connector and the implications in the design of composite beams.
KW - Circular yielding pocket (CYP)
KW - Composite beam
KW - Demountable shear connector
KW - Precast hollow core slab
KW - Shear strength
UR - http://www.scopus.com/inward/record.url?scp=85110556264&partnerID=8YFLogxK
U2 - 10.12989/scs.2021.39.6.701
DO - 10.12989/scs.2021.39.6.701
M3 - Article
AN - SCOPUS:85110556264
SN - 1229-9367
VL - 39
SP - 701
EP - 721
JO - Steel and Composite Structures
JF - Steel and Composite Structures
IS - 6
ER -