Pull-Out Strength of Screws in Screw Chases: Part 2

James C. LaBelle; J. Randolph Kissell; Tanya A. Dolby

doi:10.4028/www.scientific.net/KEM.710.121

Paper Titles

Practical Design of Aluminium Silos According to EC9-1-5
p.97

Bearing Capacity of Aluminum Bars with Built-Up Cross Section and Glued or Welded Connections
p.103

Interfacial Morphology and Mechanical Properties of Aluminium to Copper Sheet Joints by Electromagnetic Pulse Welding
p.109

Pull-Out Strength of Screws in Screw Chases: Part 1
p.115

Pull-Out Strength of Screws in Screw Chases: Part 2
p.121

Structural Response of Aluminium T-Stub Connections at Elevated Temperatures and Fire
p.127

Advances and Potentials in Friction Stir Welding of Aluminum Alloys
p.137

Macroscopic Modelling of Flow-Drill Screw Connections
p.143

Joining Mechanism of Dissimilar Materials such as Metal and Plastic Sheets by Friction Lap Joining
p.149

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Pull-Out Strength of Screws in Screw Chases: Part 2

Abstract:

This paper (Part 2 of 2) presents a study of the structural behavior of tension-loaded screws installed in screw chases in extruded aluminum profiles. This connection is commonly used to resist outward wind load on glass in curtainwalls and skylights. See Part 1 for details of the pull-out testing. Two types of chase, each with 1/4 in. (6.35 mm) diameter stainless steel screws were used: a flat chase with AB tapping screws (1/4-14; 14 threads per 25.4 mm) and F tapping screws (1/4-20; 20 threads per 25.4 mm), and a longitudinally ribbed chase with UNC-thread machine screws (1/4-20). The extrusions included six cross-section shapes (three with flat chases and three with ribbed chases) and three alloy-tempers.