1、April 2016DEUTSCHE NORM English price group 17No 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).ICS 27.120.20!%YMJ“254423
2、9www.din.deDIN 25449Reinforced and prestressed concrete components in nuclear facilities Safety concept, actions, design and construction,English translation of DIN 25449:2016-04Bauteile aus Stahl- und Spannbeton in kerntechnischen Anlagen Sicherheitskonzept, Einwirkungen, Bemessung und Konstruktion
3、,Englische bersetzung von DIN 25449:2016-04Composants en bton arm et bton prcontraint dans les installations nuclaires Conception de scurit, actions, dimensionnement et construction,Traduction anglaise de DIN 25449:2016-04SupersedesDIN 25449:2008-02See start of applicationwww.beuth.deDocument compri
4、ses 42 pagesDDIN-Normenausschuss Materialprfung (NMP)DIN-Sprachendienst10.17 DIN 25449:2016-04 2 A comma is used as the decimal marker. Start of application The start of application of this standard is 2016-04-01. For DIN 25449:2008-02 there is a transition period ending on 2016-10-01. DIN 25449:201
5、6-04 3 Contents Page Foreword 5 1 Scope . 6 2 Normative references . 6 3 Terms and symbols 7 3.1 Terms 7 3.2 Symbols 7 4 Materials 9 4.1 Concrete . 9 4.1.1 General . 9 4.1.2 Temperature dependence of characteristic values 10 4.1.3 Bound water content 10 4.1.4 Heat capacity . 12 4.2 Reinforcing steel
6、 12 4.3 Prestressing steel 12 5 Actions . 12 5.1 General 12 5.2 Permanent actions 13 5.3 Variable actions . 13 5.4 Accidental actions . 13 5.4.1 General 13 5.4.2 Internal actions 14 5.4.3 External actions . 16 6 Safety concept . 18 6.1 General 18 6.2 Combination rules . 18 6.3 Partial factors and co
7、mbination factors for actions . 20 6.4 Ultimate limit states . 21 6.5 Serviceability limit states . 23 7 Procedures for structural analysis and verification . 23 7.1 General 23 7.2 Linear-elastic analysis . 23 7.3 Non-linear analysis . 24 7.4 Behaviour of structural elements subjected to dynamic act
8、ions 25 7.4.1 General 25 7.4.2 Structural element stiffness 25 7.4.3 Masses 25 7.4.4 Damping of structural elements 26 7.4.5 Soil and foundation . 26 7.4.6 Simplified methods for individual structural elements 27 8 Design recommendations . 28 8.1 Design strength of reinforced concrete . 28 8.2 Ultim
9、ate limit strain of reinforcing steel and concrete . 29 8.3 Shear forces . 29 8.4 Punching shear . 30 DIN 25449:2016-04 4 8.4.1 General 30 8.4.2 Structural elements without punching shear reinforcement . 30 8.4.3 Structural elements with punching shear reinforcement 31 8.4.4 Structural members for w
10、reckage loads . 33 8.4.5 Structural detailing . 34 Annex A (informative) Plant conditions and actions 35 Annex B (informative) Load assumptions due to blast waves from explosions for buildings as a whole and for slender structural elements 38 B.1 General 38 B.2 Rectangular buildings 39 B.2.1 Directl
11、y loaded individual structural elements . 39 B.2.2 Overall structure, bracing structural elements, foundation 39 B.3 Cylindrical and spherical buildings 39 B.4 Slender structural elements 41 Bibliography . 42 DIN 25449:2016-04 5 Foreword This standard contains safety requirements. This standard has
12、been prepared by Working Committee NA 062-07-43 AA Bauteile aus Stahl- und Spannbeton in kerntechnischen Anlagen (Reinforced and prestressed concrete components in nuclear facilities) of the DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing). Applicants wishing to erect o
13、r make substantial changes to a structure are required to draw up a report containing a list of regulations that must be taken into account and other relevant conditions (e.g. actions). In the course of the approval procedure this report will be checked for compliance with building regulations and l
14、egislation relating to nuclear facilities. This procedure ensures that due consideration is given to technical safety requirements when planning and designing suchlike structures. The loading resulting from permanent and temporary actions (including loads and stresses occurring during construction a
15、nd erection) as well as accidental actions (e.g. incidents and very rare events), and the associated technical safety requirements for the structural elements are determined in the respective approval or supervision procedure. Such requirements may be justified for structural and/or operational reas
16、ons. This standard covers additional requirements which are not included in other guidelines, regulations and standards. Particularly it describes the type of internal and external actions that have to be taken into account when designing structural elements in nuclear facilities, including the rule
17、s that are to be used regarding combinations of various types of action. Furthermore, the requirements for building approval procedures are to be met. In addition, this standard makes reference to the required dynamic calculations and to permissible simplifications. It specifies the partial factors,
18、 the combination factors and the material property values to be applied to the verifications in the ultimate limit state. This standard also specifies additional conditions that need to be met in terms of structural safety at specific locations of structural elements (e.g. limits for deformation and
19、 crack width control). If this standard is applied, the load-bearing capacity of the structure as designed is ensured as is the continued function of the structure in terms of safety provided that consideration is given to additional conditions. Attention is drawn to the possibility that some of the
20、 elements of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsible of identifying any or all such patent rights. Amendments This standard differs from DIN 25449:2008-02 as follows: a) the current BMU-Sicherheitsanforderungen fr Kernkraftwerke (Safety require
21、ments for nuclear power plants issued by the German Federal Ministry for the Environment) have been taken into account; b) the standard has been brought into line with the German regulations and provisions relating to nuclear facilities; c) the standard now references Eurocodes instead of DIN standa
22、rds; d) Clause 8 “Design recommendations” has been revised to take account of the provisions of DIN EN 1992-1-1:2011-01. Previous editions DIN 25449: 1983-02, 1987-05, 2008-02 DIN 25449:2016-04 6 1 Scope This standard specifies fundamental requirements relating to analyses and design and constructio
23、n rules for reinforced and prestressed concrete components in nuclear power plants. The most important actions in connection with incidents and very rare events are taken into account. The more detailed requirements specified in DIN 25459 for reinforced concrete or prestressed concrete safety contai
24、nments in nuclear power plants shall also be taken into account. This standard may also be applied by analogy to corresponding components in other nuclear facilities. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensabl
25、e for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 488 (all parts), Reinforcing steels DIN 4102-4:1994-03, Fire behaviour of building materials and building compone
26、nts Part 4: Synopsis and application of classified building materials, components and special components DIN 4102-22:2004-11, Fire behaviour of building materials and building components Part 22: Application standard for DIN 4102-4 based on the design of partial safety factors DIN EN 197-1, Cement P
27、art 1: Composition, specifications and conformity criteria for common cements DIN EN 1990:2010-12, Eurocode: Basis of structural design DIN EN 1990/NA:2010-12, National Annex Nationally determined parameters Eurocode: Basis of structural design DIN EN 1992-1-1:2011-01, Eurocode 2: Design of concrete
28、 structures Part 1-1: General rules and rules for buildings DIN EN 1992-1-1/NA:2013-04, National Annex Nationally determined parameters Eurocode 2: Design of concrete structures Part 1-1: General rules and rules for buildings DIN EN 1992-3:2011-01, Eurocode 2: Design of concrete structures Part 3: L
29、iquid retaining and containment structures DIN EN 1992-3/NA:2011-01, National Annex Nationally determined parameters Eurocode 2: Design of concrete structures Part 3: Liquid retaining and containment structures KTA 2201.1:2011-11, Auslegung von Kernkraftwerken gegen seismische Einwirkungen Teil 1: G
30、rundstze (Design of nuclear power plants against seismic events Part 1: Principles)1)KTA 2207:2004-11, Schutz von Kernkraftwerken gegen Hochwasser (Flood protection for nuclear power plants)1)BMI-Richtlinie:1976-09 (BMI Guideline:1976-09), Richtlinie fr den Schutz von Kernkraftwerken gegen Druckwell
31、en aus chemischen Reaktionen durch Auslegung der Kernkraftwerke hinsichtlich ihrer Festigkeit und induzierter Schwingungen sowie durch Sicherheitsabstnde (Guideline for the protection of nuclear power 1) Published by Kerntechnischer Ausschuss (KTA) (Nuclear Standards Safety Commission) of the Bundes
32、amt fr Strah-lenschutz (BfS) (Federal Office for Radiation Protection). DIN 25449:2016-04 7 plants against pressure waves caused by chemical reactions in the design of nuclear power plants concerning structural strength and induced vibrations as well as safety limits, issued by the Federal Ministry
33、of the Interior), Bundanzeiger (Federal Gazette) No. 179, 22 September 1976 BMU-Sicherheitsanforderungen vom 22. November 2012, Sicherheitsanforderungen an Kernkraftwerke (Safety requirements issued by the Federal Ministry for the Environment as of 22 November 2012, Safety requirements for nuclear p
34、ower plants) *)3 Terms and symbols 3.1 Terms For the purposes of this document, the terms given in DIN EN 1990:2010-12 and DIN EN 1990/NA:2010-12 apply. 3.2 Symbols The symbols referred to for the purposes of this document are explained in Table 1. SI units shall be used throughout. Table 1 Symbols
35、(1 of 3) Symbol Term Accidental action d Design value of an accidental action EdDesign value of an action due to a seismic design situation EkCharacteristic value of a seismic action s,erfRequired longitudinal reinforcement gHeat capacity of normal-weight aggregate (4.1.4) wHeat capacity of water (4
36、.1.4) zHeat capacity of cement (4.1.4) *)Translators note. The following documents are also referenced in this standard: DIN 18800-1:1981-03, Steel structures; Design and construction KTA 2201.1, Design of nuclear power plants against seismic events Part 1: Principle KTA 2201.2, Design of nuclear po
37、wer plants against seismic events Part 2: Subsoil KTA 2201.3, Design of nuclear power plants against seismic events Part 3: Structural components KTA 3201.2:1996-06, Components of reactor coolant pressure boundary of light water reactors Part 2: Design and analysis KTA 3205.1:2002-06, Component-supp
38、ort structures with non-integral connections Part 1: Component-support structures with non-integral connections for components of the reactor coolant pressure boundary KTA 3205.2:1990-06, Component support structures with non-integral connections Part 2: Component support structures with non-integra
39、l connections for pressure and activity-retaining components in systems outside the primary circuit KTA 3211.2:2013-11, Pressure and activity retaining components of systems outside the primary circuit Part 2: Design and analysis DIN 25449:2016-04 8 Table 1 Symbols (2 of 3) Symbol Term dDesign value
40、 of an effect of actions, internal force or moment, stress or deformation Force SJet impingement force ckCharacteristic 28-day compressive strength of a concrete cylinder cmMean compressive strength of a concrete cylinder cRNotional compressive strength of concrete pkCharacteristic tensile strength
41、of prestressing steel p0,1RNotional 0,1 % proof stress of prestressing steel ykCharacteristic yield strength of reinforcing steel yRNotional yield strength of reinforcing steel Permanent action, e.g. self-weight kCharacteristic value of a permanent action kCharacteristic value of a prestressing forc
42、e Differential pressure Variable action ,1Characteristic value of a leading variable action 1 ,( 1) Characteristic value of an accompanying variable action i Temperature Time E Fundamental period 1, 2Points in time Shear force Ed Design value of the applied shear force Rd Design shear resistance of
43、a structural element with shear reinforcement Rd,c Design shear resistance of a structural element without shear reinforcement Rd,s Design shear resistance limited by the yield point of the shear reinforcement Rd,max Maximum design shear resistance limited by the strength of the struts Rd,c,min Mini
44、mum design shear capacity of a structural element without shear reinforcement EdApplied design shear force per unit area minMinimum punching shear resistance (shear resistance) of a slab without punching shear reinforcement Rd,cPunching shear resistance per unit area of a slab without punching shear
45、 reinforcement DIN 25449:2016-04 9 Table 1 Symbols (3 of 3) Symbol Term Rd,csPunching shear resistance per unit area of a slab with punching shear reinforcement Rd,max Maximum design punching shear resistance per unit area ccFactor to take account of unfavourable long-term effects on the compressive
46、 strength of concrete 1Weighting factor (6.2) cPartial safety factor for concrete GPartial safety factor for permanent actions IImportance factor (6.2) pPartial safety factor for actions associated with prestressing QPartial safety factor for variable actions RPartial safety factor for the resistanc
47、e of the system SPartial safety factor for reinforcing steel or prestressing steel DLFDynamic load factor E,iCombination value of a variable action i to be applied when determining the loads for the design seismic action 0Combination factor for variable actions 1Factor for a frequent value of a vari
48、able action 2Factor for a quasi-permanent value of a variable action “to be combined with” 4 Materials 4.1 Concrete 4.1.1 General Concrete covered by the scope of this standard shall conform to DIN EN 1992-1-1:2011-01 and DIN EN 1992-1-1/NA:2013-04 and the respective associated standards. The presen
49、t standard is limited to normal-weight concrete up to strength class C50/60. For normal-weight concrete with a dry density between 2 000 kg/m3and 2 600 kg/m3, the characteristic material properties givenin DIN EN 1992-1-1:2011-01, 3.1, and DIN EN 1992-1-1:2013-04*)shall apply. For concrete with a dry density of more
