Strength and Ductility of Single Point, Self-Drilling Fasteners in Bending and Shear (No. R872)
Access status:
Open Access
Type
Report, ResearchAbstract
The report describes tests on connections featuring self-drilling screws and gaps between the connected parts. Gap typically occur when using inserts of a smaller dimension than the overlapping section, e.g. a tube. In such connections, the screws are subjected to the combined ...
See moreThe report describes tests on connections featuring self-drilling screws and gaps between the connected parts. Gap typically occur when using inserts of a smaller dimension than the overlapping section, e.g. a tube. In such connections, the screws are subjected to the combined action of shear and bending. Tests were conducted on single and multiple screw connections loaded in shear. The gap was systematically increased from zero (pure shear) to about 1.3 times the screw diameter. Further gap-tests were conducted where the screw was inserted non-removed. These situations occur frequently in practice, particularly when access restrictions prevent perpendicular screw insertion or impede the control of the torque. Based on the tests, design equations are proposed for screw connections with gaps. A reliability analysis is included deriving an appropriate capacity factor for screw connections with gaps.
See less
See moreThe report describes tests on connections featuring self-drilling screws and gaps between the connected parts. Gap typically occur when using inserts of a smaller dimension than the overlapping section, e.g. a tube. In such connections, the screws are subjected to the combined action of shear and bending. Tests were conducted on single and multiple screw connections loaded in shear. The gap was systematically increased from zero (pure shear) to about 1.3 times the screw diameter. Further gap-tests were conducted where the screw was inserted non-removed. These situations occur frequently in practice, particularly when access restrictions prevent perpendicular screw insertion or impede the control of the torque. Based on the tests, design equations are proposed for screw connections with gaps. A reliability analysis is included deriving an appropriate capacity factor for screw connections with gaps.
See less
Date
2006Publisher
School of Civil Engineering, The University of SydneyLicence
Copyright All Rights ReservedRights statement
This publication may be redistributed freely in its entirety and in its original form without the consent of the copyright owner. Use of material contained in this publication in any other published works must be appropriately referenced, and, if necessary, permission sought from the author.Faculty/School
Faculty of Engineering, School of Civil EngineeringDepartment, Discipline or Centre
Centre for Advanced Structural EngineeringShare