Behaviour of novel stiffened angle shear connectors at ambient and elevated temperatures
Document Type
Article
Publication Date
3-1-2021
Abstract
This paper presents experimental studies to investigate the behaviour of stiffened angle shear connectors subjected to isothermal fire loading. Push-out tests were conducted on 48 specimens covering various geometries of stiffened angle shear. The specimens were initially heated at room temperature, which gradually increased to target temperatures, and loaded up to failure for the assessment of their shear resistance at high temperatures. The behaviour of these connectors at ambient and high temperatures was compared. Results showed that the full-length stiffened angle shear connectors exhibited higher shear resistance compared with the half-length ones, whereas the ductility of the half-length stiffened shear connectors was greater than that of the full-length ones; the connector fracture governed the failure mode. Although heating exerted a substantially destructive effect on the resistance of the shear connectors, it led to increased ductile behaviour. Copyright (C) 2021 by The Hong Kong Institute of Steel Construction. All rights reserved.
Keywords
Stiffened Shear Connector, Composite, Angle, Monotonic Loading, Elevated Temperature, Ambient Temperature
Divisions
sch_civ
Publication Title
Advanced Steel Construction
Volume
17
Issue
1
Publisher
Hong Kong Inst Steel Construction
Publisher Location
HONG KONG POLYTECHNIC UNIV, DEPT CIVIL & STRUCTURAL ENGNG, HUNGHOM KOWLOON, HONG KONG 00000, PEOPLES R CHINA