DIN EN 1992-1-2 NA-2010 National Annex - Nationally determined parameters - Eurocode 2 Design of concrete structures - Part 1-2 General rules - Structural fire design《国家附录 国家制定参数 欧.pdf
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1、December 2010 Translation by DIN-Sprachendienst.English price group 10No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I
2、CS 13.220.50; 91.010.30; 91.080.40!$lL“1735941www.din.deDDIN EN 1992-1-2/NANational Annex Nationally determined parameters Eurocode 2: Design of concrete structures Part 1-2: General rules Structural fire designEnglish translation of DIN EN 1992-1-2/NA:2010-12Nationaler Anhang National festgelegte P
3、arameter Eurocode 2: Bemessung und Konstruktion von Stahlbeton- und Spannbetontragwerken Teil 1-2: Allgemeine Regeln Tragwerksbemessung fr den BrandfallEnglische bersetzung von DIN EN 1992-1-2/NA:2010-12Annexe Nationale Paramtres dtermins au plan national Eurocode 2: Calcul des structures en bton Pa
4、rtie1-2:RglesgnralesCalculdu comportement au feuTraduction anglaise de DIN EN 1992-1-2/NA:2010-12www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1602.12 DIN EN 1992-1-2/NA:2010-12 2 A comma is used as the decimal marker. Contents P
5、age Foreword . 3 NA 1 Scope . 4 NA 2 National provisions for the application of DIN EN 1992-1-2:2010-12 4 NA 2.1 General . 4 NA 2.2 National provisions. 5 NCI Annex AA (normative) Simplified method for analysing class R 90 reinforced normal-weight concrete cantilever columns . 9 AA.1 Scope . 9 AA.2
6、General . 9 AA.3 Further uses of the diagrams in Figures AA.1 to AA.4 . 13 AA.4 Use of the diagrams in Figures AA.1 to AA.4 for columns in horizontally braced buildings 15 NCI Bibliography 16 DIN EN 1992-1-2/NA:2010-12 3 Foreword This document has been prepared by Working Committee NA 005-52-22 AA K
7、onstruktiver baulicher Brandschutz (which deals with some fields covered by CEN/TC 250) of the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee). This document is the National Annex to DIN EN 1992-1-2:2010-12 Eurocode 2: Design of concrete structures Part 1-2: General rul
8、es Structural fire design. European Standard EN 1992-1-2:2004 allows national safety parameters, referred to as Nationally Determined Parameters (NDPs), to be specified for a number of points. The NDPs cover alternative verification methods, the provision of individual values and the selection of cl
9、asses from designated classification systems. The relevant parts of the text are identified in the European Standard by references to the possibility of national choice and are listed in Clause NA.2.1. This National Annex also includes non-contradictory complementary information (NCI) that is permit
10、ted by the European Commissions Guidance Paper L “Application and use of Eurocodes”, and provisions for the application of DIN EN 1992-1-2:2010-12. The provisions of this National Annex are based on investigations made and on the results of fire design analyses in accordance with DIN 4102-4, and are
11、 intended to maintain the national safety level in terms of fire safety. This National Annex is an integral part of DIN EN 1992-1-2:2010-12. Annex AA below is normative. DIN EN 1992-1-2/NA:2010-12 4 NA 1 Scope This National Annex contains national provisions relating to the structural fire design of
12、 reinforced and prestressed concrete structures that are to be taken into consideration when applying DIN EN 1992-1-2:2010-12 in Germany. This National Annex is only valid in conjunction with DIN EN 1992-1-2:2010-12. NA 2 National provisions for the application of DIN EN 1992-1-2:2010-12 NA 2.1 Gene
13、ral DIN EN 1992-1-2:2010-12 refers to the option of choosing Nationally Determined Parameters (NDPs) at the following places in the text. 2.1.3(2) 5.3.2(2) 2.3(2)P 5.6.1(1) 3.2.3(5) 5.7.3(2) 3.2.4(2) 6.1(5) 3 .3.3(1)P 6.2(2) 4.1(1)P 6.3(1)P 4.5.1(2) 6.4.2.1(3) 5.2(3) 6.4.2.2(2) In addition, NA.2.2 i
14、ncludes non-contradictory complementary information for the application of DIN EN 1992-1-2:2010-12. This information is preceded by the letters “NCI”. Translators note: For ease of reference, the texts of relevant notes taken from DIN EN 1992-1-2 are given in italics in each case above the provision
15、s of this National Annex (which are printed in upright font). DIN EN 1992-1-2/NA:2010-12 5 NA 2.2 National provisions In the following, the clauses are numbered as in DIN EN 1992-1-2:2010-12. NCI re 1.2.1 Normative references DIN 488-1, Reinforcing steel Grades, properties and marking DIN EN 206-1,
16、Concrete Part 1: Specification, performance, production and conformity DIN EN 1991-1-2/NA:201012, National Annex Nationally determined parameters Eurocode 1: Actions on structures Part 1-2: General actions Actions on structures exposed to fire DIN EN 1992-1-1:200510, Eurocode 2: Design of concrete s
17、tructures Part 1-1: General rules and rules for buildings E DIN EN 1992-1-1/NA:200809, National Annex Nationally determined parameters Eurocode 2: Design of concrete structures Part 1-1: General rules and rules for buildings DIN EN 1992-1-2:2010-12, Eurocode 2: Design of concrete structures Part 1-2
18、: General rules Structural fire design NDP re 2.1.3(2) Parametric fire exposure Re NOTE The values of 1 and 2for use in a country may be found in its National Annex. The recommended values are 1= 200 K and 2= 240 K. The recommendation applies. NOTE These values are also specified in DIN EN 1993-1-2/
19、NA and DIN EN 1994-1-2/NA. NDP re 2.3(2)P Design values of thermal material properties Re NOTE 1 The value of M,fifor use in a country may be found in its National Annex. The recommended value is: for thermal properties of concrete and reinforcing and prestressing steel: M,fi= 1,0; for mechanical pr
20、operties of concrete and reinforcing and prestressing steel: M,fi= 1,0. The recommendation applies. NDP re 3.2.3(5) Reinforcing steel Re NOTE The choice of class N (Table 3.2a) or X (Table 3.2b) to be used in a country may be found in its National Annex. Class N is generally recommended. Class X is
21、recommended only when there is experimental evidence for these values. Both classes, N and X, may be used. DIN EN 1992-1-2/NA:2010-12 6 NDP re 3.2.4(2) Prestressing steel Re NOTE The choice of class A or class B for use in a country may be found in its National Annex. Both classes, A and B, may be u
22、sed. NDP re 3.3.3(1)P Thermal conductivity Re NOTE 1 The value of thermal conductivity may be set by the National Annex within the range defined by lower and upper limit. The upper limit value as defined in 3.3.3(2) applies. NDP re 4.1(1)P Design methods General Re NOTE 3 The decision on the use of
23、advanced calculation methods in a country may be found in its National Annex. Advanced calculation methods may be used. When analysing structures and parts of structures for their fire behaviour by advanced calculation methods using computing programmes, it is assumed that such programmes are valida
24、ted. Annex CC of DIN EN 1991-1-2/NA:2010-12 provides some suitable validation methods. NDP re 4.5.1(2) Explosive spalling Re NOTE The value of k for use in a country may be found in its National Annex. The recommended value is 3. A value of k = 4 applies. NDP re 5.2(3) General design rules Re NOTE W
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