1	Background to the Eurocodes and Eurocode 6
2	Coherent Development of the Eurocodes
3	"Eurocode 0" Eurocode 0: Basis of Design Eurocode 1: Actions on Structures Eurocode 2: Design of Concrete Structures Eurocode 3: Design of Steel Structures Eurocode 4: Design of Composite Steel and Concrete Structures Eurocode 5: Design of Timber Structures Eurocode 6: Design of Masonry Structures Eurocode 7: Geotechnical Design Eurocode 8: Design Provisions for Earthquake Resistance of Structures Eurocode 9: Design of Aluminium Alloy Structures
4	EN 1996 EN1996 Eurocode 6: Design of masonry structures EN1996 Eurocode 6 relates to buildings and other civil engineering works and covers reinforced, prestressed and confined masonry. The three parts cover the rules for reinforced and unreinforced masonry including structural fire design, execution and simplified rules.
5	The parts of EN 1996
6	Current Progress with EC6
7	Potential Benefits of Eurocodes A common understanding regarding the design of structures. Common design criteria and methods to fulfil the specified requirements Facilitates exchange of construction services Facilitates marketing and use of structural components Facilitates marketing and use of materials and products Common basis for research and development Greater transparency for the design process Ability prepare common design aids and software.
8	Context Eurocodes support National Building regulations and other National requirements for regulated work but remain subservient to them. National regulations set the appropriate level of safety through the Nationally Determined Parameters (NDP). Certain other parameters are clearly identified in the Eurocodes so that values can be set by individual countries.
9	Context Eurocodes support National Building regulations and other National requirements for regulated work but remain subservient to them. National regulations set the appropriate level of safety through the Nationally Determined Parameters (NDP). Certain other parameters are clearly identified in the Eurocodes so that values can be set by individual countries.
10	More context It is also worth noting that the clauses in the Eurocodes are divided into Principles and Application rules. Principles are identified by (P) after the clause number and cover items for which no alternative is permitted. Application rules are recommended methods of achieving the Principles. This gives greater flexibility to use alternative rules to satisfy the Principles.
11	Part of Clause 3.3 of EC6 –example of Principle and Application Rule
12	What is an Informative Annex? There are two types of Annex in the Eurocodes. Normative annexes are part of the requirements of the Codes Informative annexes provide guidance which can be adopted or not on a country by country basis. The National Annexe is therefore informative.
13	What can the National Annexe contain? In the National Annex you can: State the values and classes which the Eurocodes require to be set to suit the needs of the construction industry in your country Provide values where a symbol only is given in the Eurocode Provide data specific to your country. For example you may have very high wind or snow loads for which you want to provide a map.
14	What can the National Annexe contain? (continued) Where alternatives are given in the Eurocode you can choose which you wished to be used in your country You can choose which of the informative annexes are applicable to you You can refer to Non-contradictory complementary information (NCCI)
15	What is an NCCI? Non-contradictory complementary information is a way of introducing additional guidance to cover aspects not covered in the Eurocodes As the name suggests this information must not contradict the requirements contained in the Eurocodes but may be used to supplement the codes.
16	Clauses in EN 1996-1-1 where National Choice is allowed
17	Summary of Current Position All three parts of Eurocode 6 are published The National Annexes will be published mid 2007 Expected withdrawal of BS 5628 in 2010
18	Masonry Organisations Brick Development Association Ltd Concrete Block Association Autoclaved Aerated Concrete Products Association Ltd British Masonry Society