NSAI announces revisions and reviews of Eurocodes
16 January 2015
The National Standards Authority of Ireland (NSAI) has announced that the draft revision of the National Annex to I.S. EN 1997-1:2004+A1:2013 Eurocode 7: Geotechnical design – Part 1: General rules is now out for public enquiry.
This National Annex will be available for comment until 5pm, February 20 2015. It has been prepared by the NSAI Eurocodes Consultative Committee and is subject to ongoing development and change. Full details on this draft National Annex and the mechanism for submitting comments is available from Your Standards, Your Say.
A major change from the previous National Annex is the inclusion of Annex NB. Annex NB contains the values or decisions on NDPs (Nationally Determined Parameters) for partial and correlation factors for ultimate limit state design. Table NA.1 in Annex NA contains the value or decision for NDPs from clauses in the main document of EN 1997-1:2004 + A1:2013. Annex NB contains the value or decision for NDPs from clauses in Annex A of EN 1997-1:2004 + A1:2013. Where a clause in Table NA.1 deals with partial and correlation factors for ultimate limit state design, the user will be guided to Annex NB.
Structural Eurocodes and fire
In addition, the European technical committee dealing with Structural Eurocodes, CEN/TC 250 has started a systematic review of two Eurocode parts relating specifically to fire. Phase 1 of the systematic review included the review of 31 out of the 58 parts of the Eurocodes. Phase 1 ended in September, however, the following Eurocodes have been highlighted as being vital for phase 1 tasks relating to fire parts and a review phase for the 2 parts listed below has been launched:
• EN 1993-1-2:2005 [AC:2005 + AC:2009] Eurocode 3. Design of steel structures. General rules. Structural fire design
• EN 1995-1-2:2004 [AC:2006 + AC:2009] Eurocode 5. Design of timber structures. General. Structural fire design
There are six questions which are asked in this review:
- Do any clauses require editorial or technical correction?
- Which clauses would benefit from improvements in clarity?
- Where should the scope of the EN be extended?
- Where could the EN be shortened?
- Are there any clauses whose application leads to uneconomic construction?
- Are there any clauses whose application necessitates excessive design effort?
NSAI/TC 015, the Irish mirror committee of CEN/TC 250, would welcome any comments on the Eurocode parts listed above. Comments can be made by visiting the NSAI Eurocodes Review page. Here you will find information on how to submit comments. The closing date for comments to NSAI/TC 015 is 6 April 2015. The comments will then be reviewed by members of NSAI/TC 015 before they are sent to CEN/TC 250.http://www.engineersjournal.ie/2015/01/16/nsai-announces-revisions-reviews-eurocodes/http://www.engineersjournal.ie/wp-content/uploads/2015/01/nsai.jpghttp://www.engineersjournal.ie/wp-content/uploads/2015/01/nsai-300x300.jpgNewsconstruction,NSAI,standards