Finite element analysis of novel stiffened angle shear connectors at ambient and elevated temperature
Document Type
Article
Publication Date
1-1-2023
Abstract
This is a numerical study to investigate the behavior of novel stiffened angle shear connectors embedded in solid concrete slabs at both ambient and elevated temperatures. An advanced nonlinear finite element model is developed and validated with available experimental work by Nouri, K., et al. 2021. Additionally, parametric studies are performed to evaluate the variations in concrete strength and the connector's dimensions. The results indicate that the ultimate strength of the stiffened angle shear connector drops by 92% in 1050 degrees C. Comparing studies show the strength of the stiffened shear connector at 700-850 degrees C is equivalent to the ordinary C-shaped shear connectors. The stiffened shear connector is more ductile at elevated temperatures as compared to ambient temperatures. The shear strength raised to 66% and 159.7% by increasing the height and width of the stiffened shear connector, respectively. Furthermore, the height of the stiffened shear connector is crucial to enhance the shear strength capacity as compared to the ordinary C-shaped shear connector.
Keywords
Stiffened shear connector, Angle shear connector, C-shaped shear connector, Composite beam, Ambient temperature, Elevated temperature
Divisions
sch_civ
Funders
National Natural Science Foundation of China (NSFC) (Grant No: 42102307),Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences Grant (Grant No: Z2019023),Natural Science Foundation of Jiangsu Province (Grant No: BK20209992),Jiangsu Province High-level Innovative and Entrepreneurial Talent Introduction Plan
Publication Title
Sustainability
Volume
15
Issue
1
Publisher
MDPI
Publisher Location
ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND