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1、NA to BS EN 1993-2:2006 UK National Annex to Eurocode 3: Design of structures Part 2: Steel bridges ICS 91.010.30; 81.080.10; 93.040 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW NATIONAL ANNEX Copyright British Standards Institution Provided by IHS under license with BSI -
2、Uncontrolled Copy Licensee=Boeing Co/5910770001, User=Japan, IHS Not for Resale, 10/17/2008 22:58:09 MDTNo reproduction or networking permitted without license from IHS -,-,- Publishing and copyright information The BSI copyright notice displayed in this document indicates when the document was last
3、 issued. BSI 2008 ISBN 978 0 580 54975 5 The following BSI references relate to the work on this standard: Committee reference B/525/10 Draft for comment 07/30128148 DC Publication history First published May 2008 Amendments issued since publication Amd. no.DateText affected NA to BS EN 1993-2:2006
4、Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001, User=Japan, IHS Not for Resale, 10/17/2008 22:58:09 MDTNo reproduction or networking permitted without license from IHS -,-,- BSI 2008i NA to BS EN 1993-2:2006 Contents I
5、ntroduction 1 NA.1Scope 1 NA.2Nationally Determined Parameters 2 NA.3Decision on the status of the informative annexes 10 NA.4References to non-contradictory complementary information 11 Bibliography 12 List of tables Table NA.1 Additional sacrificial thickness 4 Summary of pages This document compr
6、ises a front cover, an inside front cover, pages i and ii, pages 1 to 12, an inside back cover and a back cover. Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001, User=Japan, IHS Not for Resale, 10/17/2008 22:58:09 MDTNo
7、 reproduction or networking permitted without license from IHS -,-,- NA to BS EN 1993-2:2006 ii BSI 2008This page deliberately left blank Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001, User=Japan, IHS Not for Resale,
8、10/17/2008 22:58:09 MDTNo reproduction or networking permitted without license from IHS -,-,- BSI 20081 NA to BS EN 1993-2:2006 National Annex (informative) to BS EN 1993-2:2006, Eurocode 3 Design of steel structures Part 2: Steel bridges Introduction This National Annex has been prepared by BSI Sub
9、committee B/525/10, Bridges, in consultation with B/525/31, Structural use of steel. NA.1 Scope This National Annex gives: a)the UK decisions for the Nationally Determined Parameters described in the following subclauses of BS EN 1993-2:2006: 2.1.3.2(1)8.2.1.6(1) 2.1.3.3(5)8.2.10(1) 2.1.3.4(1)8.2.13
10、(1) 2.1.3.4(2)8.2.14(1) 2.3.1(1) (two places)9.1.2(1) 3.2.3(2)9.1.3(1) 3.2.3(3)9.3(1)P 3.2.4(1)9.3(2)P 3.4(1)9.4.1(6) 3.5(1)9.5.2(2) 3.6(1)9.5.2(3) 3.6(2)9.5.2(5) 4(1)9.5.2(6) 4(4)9.5.2(7) 5.2.1(4)9.5.3(2) (two places) 5.4.1(1)9.6(1) (two places) 6.1(1)P9.7(1) 6.2.2.3(1)A.3.3(1)P 6.2.2.5(1)A.3.6(2)
11、6.3.2.3(1)A.4.2.1(2) 6.3.4.2(1)A.4.2.1(3) 6.3.4.2(7)A.4.2.1(4) 7.1(3)A.4.2.4(2) 7.3(1)C.1.1(2) 8.1.3.2.1(1)C.1.2.2(1) 8.1.6.3(1)C.1.2.2(2) 8.2.1.4(1)E.2(1) 8.2.1.5(1) Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001, Use
12、r=Japan, IHS Not for Resale, 10/17/2008 22:58:09 MDTNo reproduction or networking permitted without license from IHS -,-,- NA to BS EN 1993-2:2006 2 BSI 2008 b)the UK decisions on the status of BS EN 1993-2:2006 informative annexes; and c)references to non-contradictory complementary information. NA
13、.2 Nationally Determined Parameters NA.2.1Design working life BS EN 1993-2:2006, 2.1.3.2(1) Unless otherwise specified for a particular project, the design working life should be 120 years. NA.2.2Durability BS EN 1993-2:2006, 2.1.3.3(5) Additional requirements for durable details should be specified
14、 for a particular project. NA.2.3Robustness and structural integrity BS EN 1993-2:2006, 2.1.3.4(1) Components which need to be designed for accidental design situations should be specified for a particular project. NA.2.4Robustness and structural integrity BS EN 1993-2:2006, 2.1.3.4(2) The safe life
15、 design method of fatigue assessment should be used unless specified otherwise for a particular project. NA.2.5Actions and environmental influences BS EN 1993-2:2006, 2.3.1(1) Actions not included in various parts of BS EN 1991 which need to be considered in the design should be specified for a part
16、icular project. Transient situations for maintenance and repair which need to be considered should be specified for a particular project. NA.2.6Fracture toughness BS EN 1993-2:2006, 3.2.3(2) The example in Table 3.1 should not be used and NA to BS EN 1993-1-10:2005, NA.2.1, should be followed. NA.2.
17、7Fracture toughness BS EN 1993-2:2006, 3.2.3(3) For components in compression, the values for Ed of 0,25fy(t) should be used for all magnitudes of Ed. Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001, User=Japan, IHS Not
18、 for Resale, 10/17/2008 22:58:09 MDTNo reproduction or networking permitted without license from IHS -,-,- BSI 20083 NA to BS EN 1993-2:2006 NA.2.8Through thickness properties BS EN 1993-2:2006, 3.2.4(1) The recommendations in Table 3.2 should not be used and NA to BS EN 1993-1-10:2005, NA.2.2, shou
19、ld be followed. NA.2.9Cables and other tension elements BS EN 1993-2:2006, 3.4(1) The types of cable which are deemed to satisfy the requirements for durability should be specified for a particular project. NA.2.10Bearings BS EN 1993-2:2006, 3.5(1) The types of bearing which may be used should be sp
20、ecified for a particular project. NA.2.11Other bridge components BS EN 1993-2:2006, 3.6(1) The types of expansion joint, guardrail, parapet and other ancillary items which may be used should be specified for a particular project. NA.2.12Other bridge components BS EN 1993-2:2006, 3.6(2) The bridge de
21、ck surfacing systems, the products used and the methods of application should be specified for a particular project. NA.2.13Durability BS EN 1993-2:2006, 4(1) The access requirements for inspection and maintenance should be specified for a particular project. Box sections that are provided with main
22、tenance access systems should be designed such that no large accumulation of moisture can occur internally and air quality is maintained. NA.2.14Durability BS EN 1993-2:2006, 4(4) For surfaces that cannot be inspected, the following design considerations should be addressed and appropriate measures
23、taken or allowances made. a)Sealing against corrosion. It is difficult to effectively seal the internal void of fabricated box girder constructions, even when using continuous welding, so this approach to corrosion control is not recommended. Instead, fabricated box girders should be detailed to all
24、ow free drainage of any condensing water at the lowest point, and a sacrificial thickness of steel should be added that is appropriate for a C2 type environment, as described in item c). Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boein
25、g Co/5910770001, User=Japan, IHS Not for Resale, 10/17/2008 22:58:09 MDTNo reproduction or networking permitted without license from IHS -,-,- NA to BS EN 1993-2:2006 4 BSI 2008 Drain holes should be sufficiently large that they do not become blocked, but not so large as to allow wildlife to enter.
26、Drainage tubes of a non-corroding material should be used and should be arranged to ensure that any water containing corrosion products is diverted away from external surfaces that could easily be stained. For structural hollow sections, the internal void should either be effectively sealed to preve
27、nt the ingress of air, moisture and contaminants, or alternatively the approach for fabricated box girders described earlier may be followed. Where structural hollow sections are to be sealed, they should be checked for structural adequacy under differential pressures between the internal and extern
28、al atmospheres. Sealed structural hollow sections should be no less than 5 mm thick. Where the design life is less than 50 years this value may be reduced to 4 mm. Narrow gaps ( 40 mm and 70 mm. The thickness may be reduced by 2 mm for lanes occupied by light vehicles. Copyright British Standards In
29、stitution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001, User=Japan, IHS Not for Resale, 10/17/2008 22:58:09 MDTNo reproduction or networking permitted without license from IHS -,-,- NA to BS EN 1993-2:2006 10 BSI 2008 b)Spacing of the supports of the deck
30、plate by webs of stiffeners in the carriageway: e u 380 mm. Locally, e may be increased by 5% where required, e.g. for adaptation to bridge curvature in plan. c)Deck plate thickness for foot bridges and footpaths which can carry maintenance vehicles: t W 10mm and e/t u 50; e u 750 mm. d)Deck plate t
31、hickness for foot bridges and footpaths with no maintenance vehicles: t W 6 mm and e/t u 92; e u 900 mm. e)Thickness of stiffener: t W 6 mm. NA.2.54Thickness of deck plates and minimum stiffness of stiffeners BS EN 1993-2:2006, C.1.2.2(2) No additional information. NA.2.55Combination factor BS EN 19
32、93-2:2006, E.2(1) Account should not be taken of the weight distribution of several lorries and the combination factor should be taken as 1,0. NA.3 Decision on the status of the informative annexes NA.3.1Annex C Recommendations for the structural detailing of steel bridge decks Annex C may be used.
33、NA.3.2Annex D Buckling lengths of members in bridges and assumptions for geometrical imperfections Annex D may be used. NA.3.3Annex E Combination of effects from local wheel and tyre loads and from global traffic loads on road bridges Annex E may be used. Copyright British Standards Institution Prov
34、ided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001, User=Japan, IHS Not for Resale, 10/17/2008 22:58:09 MDTNo reproduction or networking permitted without license from IHS -,-,- BSI 200811 NA to BS EN 1993-2:2006 NA.4 References to non-contradictory complementary in
35、formation PD 6695-2, Recommendations for the design of bridges to BS EN 19931). 1) In preparation. Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001, User=Japan, IHS Not for Resale, 10/17/2008 22:58:09 MDTNo reproduction
36、or networking permitted without license from IHS -,-,- NA to BS EN 1993-2:2006 12 BSI 2008 Bibliography For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. BS EN 1993-1-9, Eurocode 3: Design o
37、f steel structures Part 1-9: Fatigue BS EN ISO 12944-2, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 2: Classification of environments ISO 9223, Corrosion of metals and alloys Corrosivity of atmospheres Classification NA to BS EN 1991-2, Eurocode 1:
38、Actions on structures Part 2: Traffic loads on bridges NA to BS EN 1991-1-7:2006, Eurocode 1: Actions on structures Part 1-7: General actions Accidental actions2) NA to BS EN 1993-1-5:2006, UK National Annex to Eurocode 3: Design of steel structures Part 1-5: Plated structural elements NA to BS EN 1
39、993-1-9:2005, UK National Annex to Eurocode 3: Design of steel structures Part 1-9: Fatigue2) NA to BS EN 1993-1-10:2005, Eurocode 3: Design of steel structures Part 1-10: Material toughness and through-thickness properties2) PD 6695-2, Recommendations for the design of bridges to BS EN 19932) 2) In
40、 preparation. Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001, User=Japan, IHS Not for Resale, 10/17/2008 22:58:09 MDTNo reproduction or networking permitted without license from IHS -,-,- This page deliberately left bl
41、ank NA to BS EN 1993-2:2006 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001, User=Japan, IHS Not for Resale, 10/17/2008 22:58:09 MDTNo reproduction or networking permitted without license from IHS -,-,- BSI British Stan
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