The Insight: A Fire Rating Summary for Fasteners within Australian Standard 5216 (AS 5216)

The Insight: A Fire Rating Summary for Fasteners within Australian Standard 5216 (AS 5216)

ICCONS is often asked, how do we design anchors for fire exposure if Australia’s post-installed concrete standard AS 5216 does not cover the design of fastenings for exposure to fire and durability?

Fortunately, AS5216 bases its design methodology on the European Code “EN 1992-4 Design of Fastening for use in concrete” and the European Code covers “Design of Fastenings under Fire Exposure”.

AS5216 adopts European Assessment Documents (EAD’s) for their anchor testing and encourage European Testing Assessments (ETA’s) for publishing the test results.

 Below in table 1, there is a summary of both Australian Standard AS5216 and European Code EN1992-4.

Table 1: EN1992-4 and AS5216 Comparison

Code

Mechanical Anchors

Chemical Anchors

General Testing Requirement

General Test Results Published

Fire Testing Requirement

Fire Results Published

General Testing Requirement

General Test Results Published

Fire Testing Requirement

Fire Results Published

EN1992-4

EAD 330232

ETA

EAD 330232

ETA

EAD 330499

ETA

EOTA TR 20, EN 1363-1

Separate Fire Assessment Report

AS5216

EAD 330232

ETA

Not Covered Yet (Adopt European)

EAD 330499

ETA

Not Covered Yet (Adopt European)

 

As seen in table 1, for Post-installed Concrete Mechanical Anchors:

·         EAD 330232 incorporates fire testing for mechanical anchors

o   Note: EAD 330232 uses the “Standard Temperature/Time Curve” in accordance with conditions in EN 1363-1 Fire resistance tests - Part 1: General Requirements

·         As EAD 330232 includes fire testing, Fire resistance results are published in Mechanical products respected ETA

·         EN1992-4 (which AS5216 is based on) covers fire design for mechanical anchors

For Post-installed Concrete Chemical Anchors:

·         EAD 330499 does not include fire testing

·         Fire capacity of post-installed chemical anchors can be obtained through direct testing using the following European Standards:

o   EOTA TR 20 Evaluation of anchorages in concrete concerning resistance to Fire

o   EN 1363-1 Fire resistance tests - Part 1: General Requirements.

·         As Fire testing is not in EAD 330499, the Fire capacity of post-installed chemical anchors have to be published in a separate Assessment Report

·         EN1992-4 (which AS5216 is based on) covers fire design for anchors

To Summarise, with AS5216 not covering fire design for post-installed anchors, EN1992-4 may be adopted. Mechanical anchors fire exposure results can be found in their respective ETA while chemical anchors will have a published Assessment Report. ICCONS can provide these reports on request for any of our AS5216 approved anchors that are also Fire-rated.

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Should you require anymore information – please don’t hesitate to get in touch with our technical experts via sales@iccons.com.au or alternatively call us on 03 9706 4344. 

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