1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2008 02:56, Uncontrolled Copy, (c) BSIg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58C
2、himneysICS 91.010.30; 91.060.40; 91.080.10Eurocode 3 Design of steel structures Part 3-2: Towers, masts and chimneys BRITISH STANDARDBS EN 1993-3-2:2006BS EN 1993-3-2:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2008 02:56, Uncontrolled Copy, (c) BSIThis British Standard was publ
3、ished under the authority of the Standards Policy and Strategy Committee on 30 May 2008 BSI 2008ISBN 978 0 580 54894 9national standards will be withdrawn by March 2010 at the latest. In the UK, the following national standard is partially superseded by BS EN 1993-3-2:2006. This standard will be wit
4、hdrawn by March 2010 at the latest. Where a normative part of this EN allows for a choice to be made at the national level, the range and possible choice will be given in the normative text, and a note will qualify it as a Nationally Determined Parameter (NDP). NDPs can be a specific value for a fac
5、tor, a specific level or class, a particular method or a particular application rule if several are proposed in the EN. To enable BS EN 1993-3-2:2006 to be used in the UK, the NDPs will be published in a National Annex, which will be made available by BSI in due course, after public consultation has
6、 taken place. The UK participation in its preparation was entrusted by Technical Committee B/525, Building and civil engineering structures, to Subcommittee B/525/32, Towers and masts and Subcommittee B/525/13, Chimneys. A list of organizations represented on this committee can be obtained on reques
7、t to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. British Standard partially supersededBS 4076:1989 Specific
8、ation for steel chimneysAmendments/corrigenda issued since publicationDate CommentsFollowing publication of the EN, there is a period allowed for national calibration during which the National Annex is issued, followed by a coexistence period of a maximum three years. During the coexistence period M
9、ember States are encouraged to adapt their national provisions. Conflicting National forewordThis British Standard is the UK implementation of EN 1993-3-2:2006.The structural Eurocodes are divided into packages by grouping Eurocodes for each of the main materials: concrete, steel, composite concrete
10、 and steel, timber, masonry and aluminium; this is to enable a common date of withdrawal (DOW) for all the relevant parts that are needed for a particular design. The conflicting national standards will be withdrawn at the end of the coexistence period, after all the EN Eurocodes of a package are av
11、ailable. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1993-3-2October 2006ICS 91.010.30; 91.060.40; 91.080.10 Supersedes ENV 1993-3-2:1997 English VersionEurocode 3 - Design of steel structures - Part 3-2: Towers,masts and chimneys - ChimneysEurocode 3 - Calcul des structures en acier - Partie
12、3-2:Tours, mts et chemines - CheminesEurocode 3 - Bemessung und Konstruktion vonStahlbauten - Teil 3-2: Trme, Maste und Schornsteine -SchornsteineThis European Standard was approved by CEN on 13 January 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate th
13、e conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in th
14、ree official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Aust
15、ria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STA
16、NDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1993-3-2:2006: ELicensed Copy: Wang Bin, ISO/EXCHANGE
17、 CHINA STANDARDS, 04/08/2008 02:56, Uncontrolled Copy, (c) BSIEN 1993-3-2: 2006 (E) 2 Contents 1 General .5 1.1 Scope5 1.2 Normative references .6 1.3 Assumptions.6 1.4 Distinction between principles and application rules.6 1.5 Terms and definitions.6 1.6 Symbols used in Part 3.2 of Eurocode 3 9 2 B
18、asis of design9 2.1 Requirements9 2.2 Principles of limit state design .10 2.3 Actions and environmental influences .10 2.4 Ultimate limit state verifications12 2.5 Geometrical data 12 2.6 Durability .12 3 Materials 12 3.1 General .12 3.2 Structural steels 12 3.3 Connections12 4 Durability .13 4.1 A
19、llowance for corrosion.13 4.2 External corrosion allowance.13 4.3 Internal corrosion allowance 13 5 Structural analysis.14 5.1 Modelling of the chimney for determining action effects14 5.2 Calculation of internal stress resultants and stresses14 6 Ultimate limit states.16 6.1 General .16 6.2 Structu
20、ral shells17 6.3 Safety assessment of other structural elements of the chimney .18 6.4 Joints and connections18 6.5 Welded connections .19 7 Serviceability limit states 19 7.1 Basis.19 7.2 Deflections .19 8 Design assisted by testing20 9 Fatigue20 9.1 General .20 9.2 Fatigue loading.21 9.3 High cycl
21、e fatigue resistances21 9.4 Safety assessment.21 9.5 Partial factors for fatigue22 Annex A normative Reliability differentiation and partial factors for actions.23 A.1 Reliability differentiation for steel chimneys.23 A.2 Partial factors for actions23 BS EN 1993-3-2:2006Licensed Copy: Wang Bin, ISO/
22、EXCHANGE CHINA STANDARDS, 04/08/2008 02:56, Uncontrolled Copy, (c) BSIEN 1993-3-2: 2006 (E) 3 Annex B informative Aerodynamic and damping measures 24 B.1 General .24 B.2 Aerodynamic measures 24 B.3 Dynamic vibration absorber.25 B.4 Cables with damping devices.25 B.5 Direct damping.25 Annex C informa
23、tive Fatigue resistances and quality requirements .26 C.1 General .26 C.2 Enhancement of fatigue strength for special quality requirements 26 Annex D informative Design assisted by testing 29 D.1 General .29 D.2 Definition of the logarithmic damping decrement .29 D.3 Procedure for measuring the loga
24、rithmic damping decrement.29 Annex E informative Execution.30 E.1 General .30 E.2 Execution tolerances 30 E.3 Quality of welds and fatigue 30 BS EN 1993-3-2:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2008 02:56, Uncontrolled Copy, (c) BSIEN 1993-3-2: 2006 (E) 4 Foreword This Eu
25、ropean Standard EN 1993-3-2, Eurocode 3: Design of steel structures: Part 3-2 Towers, masts and chimneys Chimneys, has been prepared by Technical Committee CEN/TC250 Structural Eurocodes , the Secretariat of which is held by BSI. CEN/TC250 is responsible for all Structural Eurocodes. This European S
26、tandard shall be given the status of a National Standard, either by publication of an identical text or by endorsement, at the latest by April 2007 and conflicting National Standards shall be withdrawn at latest by March 2010. This Eurocode supersedes ENV 1993-3-2. According to the CEN-CENELEC Inter
27、nal Regulations, the National Standard Organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherl
28、ands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. National Annex for EN 1993-3-2 This standard gives alternative procedures, values and recommendations for classes with notes indicating where national choices may have to be made. Therefore th
29、e National Standard implementing EN 1993-3-2 should have a National Annex containing all Nationally Determined Parameters to be used for the design of steel structures to be constructed in the relevant country. National choice is allowed in EN 1993-3-2 through paragraphs: 2.3.3.1(1) 2.3.3.5(1) 2.6(1
30、) 4.2(1) 5.1(1) 5.2.1(3) 6.1(1)P 6.2.1(6) 6.4.1(1) 6.4.2(1) 6.4.3(2) 7.2(1) 7.2(2) 9.1(3) 9.1(4) 9.5(1) A.1(1) A.2(1) (2 places) C.2(1) BS EN 1993-3-2:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2008 02:56, Uncontrolled Copy, (c) BSIEN 1993-3-2: 2006 (E) 5 1 General 1.1 Scope (1
31、) This Part 3.2 of EN 1993 applies to the structural design of vertical steel chimneys of circular or conical section. It covers chimneys that are cantilevered, supported at intermediate levels or guyed. (2) The provisions in this Part supplement those given in Part 1.1 of EN 1993. (3) This Part 3.2
32、 is concerned only with the requirement for resistance (strength, stability and fatigue) of steel chimneys. NOTE: In this context (i.e. resistance) the term chimney refers to: a) chimney structures b) the steel cylindrical elements of towers c) the steel cylindrical shafts of guyed masts (4) For pro
33、visions concerning aspects, such as chemical attack, thermo-dynamical performance or thermal insulation see EN 13084-1. For the design of liners see EN 13084-6. (5) Foundations in reinforced concrete for steel chimneys are covered in EN 1992 and EN 1997. See also 4.7 and 5.4 of EN 13084-1. (6) Wind
34、loads are specified in EN 1991-1-4. NOTE: Procedures for the wind response of guyed chimneys are given in annex B of EN 1993-3-1. (7) This Part does not cover special provisions for seismic design, which are given in EN 1998-6. See also 5.2.4.1 of EN 13084-1. (8) Provisions for the guys and their at
35、tachments are given in EN 1993-3-1 and EN 1993-1-11. (9) For the execution of steel chimneys, reference should be made to EN 1090, Part 2 and EN 13084-1. NOTE: Execution is covered to the extent that is necessary to indicate the quality of the construction materials and products that should be used
36、and the standard of workmanship on site needed to comply with the assumptions of the design rules. (10) The following subjects are dealt with in EN 1993-3-2: Section 1: General Section 2: Basis of design Section 3: Materials Section 4: Durability Section 5: Structural analysis Section 6: Ultimate li
37、mit states Section 7: Serviceability limit states Section 8: Design assisted by testing Section 9: Fatigue BS EN 1993-3-2:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2008 02:56, Uncontrolled Copy, (c) BSIEN 1993-3-2: 2006 (E) 6 1.2 Normative references (1) The following normativ
38、e documents contain provisions which, through references in this text, constitute provisions of this European standard. For dated references, subsequent amendments to or revisions of any of these publications do not apply. However, parties to agreements based on this European standard are encouraged
39、 to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references the latest edition of the normative document referred to applies. EN 1090 Execution of steel structures and aluminium structures EN 10025 Hot rolled products of non
40、-alloy structural steels. Technical delivery conditions EN 10088 Stainless steels EN 13084-1 Free standing industrial chimneys Part 1 : General Requirements EN ISO 5817 Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfectio
41、ns 1.3 Assumptions (1) See 1.3 of EN 1993-1-1. 1.4 Distinction between principles and application rules (1) See 1.4 of EN 1993-1-1. 1.5 Terms and definitions (1) The terms and definitions that are defined in EN 1990 for common use in the Structural Eurocodes apply to this Part 3.2 of EN 1993. (2) Su
42、pplementary to Part 1 of EN 1993, for the purposes of this Part 3.2, the following definitions apply. Definitions used for chimney structures are shown in Figure 1.1. 1.5.1 chimney Vertical construction works or building components that conduct waste gases, or other flue gases, supply or exhaust air
43、 to the atmosphere. 1.5.2 self-supported chimney A chimney whose supporting shaft is not connected with any other construction above the base level. 1.5.3 guyed chimney A chimney whose supporting shaft is held in place by guys at one or more height levels. 1.5.4 single-wall chimney A chimney whose s
44、tructural shell also conducts the flue gases. It may be fitted by thermal insulation and/or internal lining. 1.5.5 double-wall chimney A chimney consisting of an outer steel structural shell and one inner liner which carries the flue gases. BS EN 1993-3-2:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CH
45、INA STANDARDS, 04/08/2008 02:56, Uncontrolled Copy, (c) BSIEN 1993-3-2: 2006 (E) 7 1.5.6 multi-flue chimney A group of two or more chimneys structurally interconnected or a group of two or more liners within a structural shell. 1.5.7 liner The structural element (membrane) of the lining system, cont
46、ained within the structural shell. 1.5.8 lining system Total system, if any, which separates the flue gases from the structural shell. This comprises a liner and its supports, the space between the liner and structural shell and insulation, where existing. 1.5.9 structural shell The main load-bearin
47、g steel structure of the chimney, excluding any flanges. 1.5.10 aerodynamic device A device fitted to the chimney to reduce vortex excitation without increasing the structural damping. 1.5.11 damping device A device fitted to the chimney to reduce vortex excited oscillations by increasing the struct
48、ural damping. 1.5.12 spoiler A device attached to the surface of a chimney with the objective of reducing cross wind response. 1.5.13 helical strakes, shrouds or slats Devices fitted to the outer surface of the chimney to reduce cross wind response. 1.5.14 base plate A horizontal plate fixed to the
49、base of a chimney. 1.5.15 anchor bolt A bolt for the connection of the chimney to the foundation. 1.5.16 stiffening rings Horizontal members to prevent ovalling and to hold the chimney shell round during fabrication and transport. Horizontal members to provide stiffeners at cut outs and openings or possibly at changes in slope of the structural shell. BS EN 1993-3-2:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/08/2008 02:56, Uncontrolled Copy, (c) BSIEN 1993-3-2: 2006 (E) 8 1 Cravat 2 Tundish
