Actions on Building Structures - Europa

1 EUROCODES. A tool for Building safety and reliability enhancement EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 1. EUROCODE 1. Actions on Building Structures Paolo Formichi CEN/TC250/SC1. University of Pisa (Italy). EUROCODES. A tool for Building safety and reliability enhancement EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 2. Scope of the presentation: illustrate Eurocode 1: Actions on Structures , its architecture and general principles with reference to buildings background and pre-normative studies illustrate the main concepts and design philosophy for some parts of Eurocode 1.

2 EUROCODES. A tool for Building safety and reliability enhancement The Eurocode programme EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 3. EN Number The Structural Eurocodes (58 parts) N of Parts EN 1990 Eurocode: Basis of structural design 1. EN 1991 Eurocode 1: Actions on Structures 10. EN 1992 Eurocode 2: Design of concrete Structures 4. EN 1993 Eurocode 3: Design of steel Structures 20. EN 1994 Eurocode 4: Design of composite steel and 3. concrete Structures EN 1995 Eurocode 5: Design of timber Structures 3. EN 1996 Eurocode 6: Design of masonry Structures 5. EN 1997 Eurocode 7: Geotechnical design 3.

3 EN 1998 Eurocode 8: Design of Structures for earthquake 6. resistance EN 1999 Eurocode 9: Design of aluminium Structures 3. EUROCODES. A tool for Building safety and reliability enhancement The Eurocode 1 package EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 4. EN 1991 Published part EN 1991-1-1 Densities, self weight, imposed loads for buildings 2002. EN 1991-1-2 Actions on Structures exposed to fire 2002. EN 1991-1-3 Snow loads 2003. EN 1991-1-4 Wind Actions 2005. EN 1991-1-5 Thermal Actions 2003. EN 1991-1-6 Actions during execution 2005. EN 1991-1-7 Accidental Actions 2006.

4 EN 1991-2 Traffic loads on bridges 2003. EN 1991-3 Actions induced by cranes and machinery 2006. EN 1991-4 Silos and tanks 2006. EUROCODES. A tool for Building safety and reliability enhancement Format of the Eurocode 1. EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 5. Each part of Eurocode 1 (except part 1-2 on Actions on Structures exposed to fire ) is made up by the following sections: - Foreword - Section 1: General - Section 2: Classification of Actions - Section 3: Design Situations - Section 4 .: Representation of Actions (specific rules for the definition of each action 's values).

5 - Annexes (Normative or Informative). EUROCODES. A tool for Building safety and reliability enhancement Format of the Eurocode 1. EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 6. The Foreword is common for all EC1 parts and contains information on: - The Structural Eurocode programme;. - The Status and Field of Application of Eurocodes;. - National Standards implementing Eurocodes;. - Links between Eurocodes and harmonised technical specifications (ENs and ETAs) for products;. - Additional information specific for each part;. - National Annex for each part. EUROCODES. A tool for Building safety and reliability enhancement Format of the Eurocode 1.

6 EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 7. National Standards implementing Eurocodes National Annex European Commission recognises the responsibility of regulatory Authorities in each EU member state in the determination of values related to safety matters at national level through a National Annex. The National Annex may only contain information on those parameters, which are left open in the Eurocode for national choice, known as Nationally Determined Parameters (NDPs). EUROCODES. A tool for Building safety and reliability enhancement Format of the Eurocode 1. EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 8.

7 Nationally Determined Parameters (NDPs). Differences in geographical or climatic conditions ( wind or snow maps). or in ways of life, as well as different levels of protection that may prevail at national, regional or local level, can be taken into account through NDPs specifying: values and/or classes where alternatives are given in the Eurocode;. values to be used where a symbol only is given in the Eurocode;. country specific data (geographical, climatic, etc.) snow map;. procedure to be used where alternative procedures are given in the Eurocode. The National Annex may also contain: decisions on the application of informative annexes.

8 References to non contradictory complementary information to assist the user to apply the Eurocode. EUROCODES. A tool for Building safety and reliability enhancement Format of the Eurocode 1. EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 9. Nationally Determined Parameters (NDPs). 1500 NDPs in the Eurocode suite 355 NDPs in EN 1991. EN 1999 EN 1990. EN 1998 6% 3%. 9% EN 1991. EN 1997. 24%. 5%. EN 1996. 4%. EN 1995. 2%. EN 1994. 4% EN 1992. 15%. EN 1993. 28%. EUROCODES. A tool for Building safety and reliability enhancement Format of the Eurocode 1. EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 10.

9 Section 1 - General Scope Normative references Distinction between Principles and Application Rules Terms and definitions The Principles comprise: - general statements and definitions for which there is no alternative, as well as - requirements and analytical models for which no alternative is permitted unless specifically stated. The Application Rules are generally recognised rules which comply with the Principles and satisfy their requirements. EUROCODES. A tool for Building safety and reliability enhancement Format of the Eurocode 1. EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 11.

10 Section 2 Classification of Actions Permanent (G). Variation in Variable (Q). time Accidental (A). Direct ( forces). Origin Indirect ( temperature). Spatial Fixed ( self weight). variation Free ( predeformation). Nature and/or Static Structural response Dynamic EUROCODES. A tool for Building safety and reliability enhancement Format of the Eurocode 1. EU-Russia cooperation on standardisation for construction Moscow, 9-10 October 2008 12. Section 3 Design situations EN 1990 (1)P The relevant design situations shall be selected taking into account the circumstances under which the structure is required to fulfil its function.