Cullen Technical Guide 2024

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Multiple Connections PSTS

Characteristic Parameters For Calculation To Eurocode 5

PSTS 6.5mm

PSTS 8.0mm

Characteristic yield moment (My,k)

14.74 kN/mm

18.60 kN/mm

Characteristic withdrawal parameter (fax,k)

16.20 N/mm 2

15.40 N/mm 2

Characteristic head pull through parameter (fhead,k)

8.80 N/mm 2

14.40 N/mm 2

1. All data included is based on tests in accordance with EN14592. 2. Paslode Structural Tests are CE marked in accordance with EN14592 following testing at TRADA Technology. For applications outside the scope of those specified please contact our Technical Department.

— Screws must be installed precisely at the vertical centre of the chord. — Washer head should meet flush with the face of the timber. — All load values assume TR26 timber. Connecting Multiple Open Web Joists With PSTS 6.5mm Ø

TO BE USED WITH 2 PLY JOISTS ONLY WITH A MINIMUM CHORD DEPTH OF 47mm

Regular Points Loads / UDL

MIN 150MM/MAX 600MM FROM JOIST END

MIN 150MM/MAX600MM BETWEEN FIXINGS HORIZONTALLY

PSTS screws should be installed into both top and bottom chords ensuring a fastener is located within each V section.

Length of Paslode STS 6.5mm

Long–Term Permissible Lateral Load–Carrying Capacity (kN) Per Fixing

Characteristic Capacity (kN) Per Fixing

Open Web Connection – Fasteners to Top & Bottom Chords*

2–ply 72mm wide Open Web Joists 2–ply 97mm wide Open Web Joists 2–ply 122mm wide Open Web Joists 2–ply 147mm wide Open Web Joists

115 150 200 250

0.75 0.75 0.60 0.60

2.28 2.28 1.65 1.65

Concentrated Point Load

MAX 250MM

MAX 250MM

150MM

Characteristic Capacity (kN)

Length of Paslode STS 6.5mm

Open Web Connection – Fasteners to Top & Bottom Chords

4 screws

8 screws

2–ply 72mm wide Open Web Joists 2–ply 97mm wide Open Web Joists 2–ply 122mm wide Open Web Joists

115 150 200

18.24 18.24 13.20

36.48 36.48 26.40

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Technical support 01592 771132 / technical@itwcp.com / https://www.itwcp-offsite.co.uk

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