Cullen Technical Guide 2024

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Masonry Joist Hanger European Community Registered Design JHI

— Suitable for use with Open Web Joists, I–Joists and trusses — Floor can be propped with acroprops and fully decked but must not be fully loaded until the masonry above has fully cured

In Situ

— A minimum of 3 courses (675mm) of masonry above is required for hanger to achieve loads stated — The masonry above must be fully cured for 28 days prior to loading the floor — All hangers in this range do not provide restraint, therefore restraint straps may be required for joist applications (see pages 128 – 129)

Load Data

Characteristic Capacity (kN)

Fixings (3.4 x 35mm)

Masonry Crushing Strength

Masonry Above (Min 675mm)

Product Code

3.5N/mm 2 All widths

7.0N/mm 2

Uplift

2.8N/mm 2 All widths

Incoming

39 – 100mm wide 122 – 198mm wide

JHI JHIR JHIST

2

2.00

Yes

11.17

13.97

23.04

13.97

4.50

5 (2)

Enhanced Uplift (2)

Hanger Depth (mm)

Min Timber Depth (mm)

— Fixings into the incoming joist/truss are required to resist uplift — Increased uplift figures can be achieved by nailing the additional triangular nail holes into the incoming member — Web stiffeners required for I–Joists, 2No end blocks required for Open Web Joists & minimum bottom chord depth/vertical required for trusses — Requires minimum full storey of masonry above to achieve values

150

84

175 – 195 225 – 240

122 172 195 235 300 350

250 300 350 400

Incorrect Installation

5

MAX 6MM

NO GAP

Do not install the hanger with a gap between the hanger and the face of the block work.

Do not install the hanger with a gap exceeding 6mm between the joist/truss and the hanger.

Do not flatten the 5mm upstands on the hanger top flanges. These are critical to the performance.

Do not install the hanger onto a timber wall plate.

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

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