PD 6688-1-4:2015

What is PD 6688-1-4- Background information to the National Annex to BS EN 1991‑1‑4 about?   

PD 6688-1-4 is a background paper that gives non‑contradictory complementary information for use in the UK with BS EN 1991-1-4:2005 and its UK National Annex. 

PD 6688-1-4 gives: 

• Background to the decisions made in the National Annexes for some of the Nationally Determined Parameters 
• Commentary on some specific subclauses from BS EN 1991-1-4:2005 
• additional data that can be used in conjunction with BS EN 1991-1-4:2005 

Who is PD 6688-1-4- Background information to the National Annex to BS EN 1991‑1‑4 for?  

PD 6688-1-4 on background information to the National Annex to BS EN 1991‑1‑4 is useful for:  

• Documentation agencies 
• Documentation specialists 

Why should you use PD 6688-1-4- Background information to the National Annex to BS EN 1991‑1‑4?   

When there is a need for guidance on a subject that is not covered by the Eurocode, a country can choose to publish documents that contain non‑contradictory complementary information that supports the Eurocode. PD 6688-1-4 provides just such information and has been cited as a reference in the National Annex to BS EN 1991-1-4:2005. 

PD 6688-1-4 gives non-contradictory complementary information for use in the UK with BS EN 1991-1-4:2005 and its UK National Annex. BS EN 1991-1-4 contains guidance applicable to all structures. Therefore, B/525/10, which is responsible for Eurocodes for the design of bridges, was consulted in the drafting of PD 6688-1-4. 

As a guide, PD 6688-1-4 takes the form of guidance and recommendations. It should not be quoted as if it were a specification and particular care should be taken to ensure that claims of compliance are not misleading.