1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1UK National Annex to Eurocode 1: Actions on structures Part 3: Actions induced by cranes and machineryNA to BS EN
2、 1991-3:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/11/2009 02:56, Uncontrolled Copy, (c) BSINA to BS EN 1991-3:2006 NATIONAL ANNEXPublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the document was last issued. BSI 2009ISBN 978 0
3、 580 67719 9ICS 91.010.30The following BSI references relate to the work on this standard: Committee reference B/525/1 Draft for comment 09/30128344 DCPublication historyFirst published August 2009Amendments issued since publicationDate Text affected Summary of pagesThis document comprises a front c
4、over, an inside front cover, pages 1 to 4, an inside back cover and a back cover.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/11/2009 02:56, Uncontrolled Copy, (c) BSINATIONAL ANNEX BSI 2009 1NA to BS EN 1991-3:2006National Annex (informative) to BS EN 1991-3:2006, Eurocode 1: Actionson
5、 structures Part 3: Actions induced bycranes and machineryIntroductionThis National Annex has been prepared by BSI Subcommittee B/525/1, Actions (loadings) and basis of design. In the UK it is to be used in conjunction with BS EN 1991-3:2006.NA.1 ScopeThis National Annex gives:a) the UK decisions fo
6、r the Nationally Determined Parameters described in the following subclauses of BS EN 1991-3:2006: 2.1(2) 2.5.2.1(2) 2.5.3(2) 2.7.3(3) A.2.2(1) A.2.2(2) A.2.3(1)b) the UK decision on the status of informative Annex B.NA.2 Nationally Determined ParametersNA.2.1 GeneralUK decisions for the Nationally
7、Determined Parameters described in BS EN 1991-3:2006 are given in NA.2.2 to NA.2.8.NA.2.2 Procedure when actions are given by the crane supplier BS EN 1991-3:2006, 2.1(2)No additional information is given.NA.2.3 Eccentricity of wheel loads BS EN 1991-3:2006, 2.5.2.1(2)The recommended value should be
8、 used.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/11/2009 02:56, Uncontrolled Copy, (c) BSINA to BS EN 1991-3:20062 BSI 2009NATIONAL ANNEXNA.2.4 Maximum number of cranes to be considered in the most unfavourable position BS EN 1991-3:2006, 2.5.3(2)The maximum number of cranes considere
9、d in the most unfavourable position should generally be as recommended in BS EN 1991-3:2006, Table 2.3. However, where two or more cranes are intended to work in cooperation, they should be counted as one in applying this table.NA.2.5 Value of friction factor BS EN 1991-3:2006, 2.7.3(3)The recommend
10、ed values should be used.NA.2.6 Definition of c-values for cases STR and GEO BS EN 1991-3:2006, A.2.2(1)The c-values for cases STR and GEO recommended in BS EN 1991-3:2006, Table A.1, should be used.NA.2.7 Definition of c-values for case EQU BS EN 1991-3:2006, A.2.2(2)The c-values for case EQU recom
11、mended in the Note to BS EN 1991-3:2006, A.2.2(2), should not be used. Instead the NA to BS EN 1990:2002+A1, NA.2.2.3.1 and Table NA.A1.2 (A), should be adopted, including the alternative combined verification given in the footnote of this table.NA.2.8 Definition of w-values BS EN 1991-3:2006, A.2.3
12、(1), Table A.2The w-values for crane loads should be as recommended.NA.3 Decision on the status of informative Annex BBS EN 1991-3:2006, Annex B, may be used.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/11/2009 02:56, Uncontrolled Copy, (c) BSINATIONAL ANNEX BSI 2009 3NA to BS EN 1991-3
13、:2006BibliographyStandards publicationsFor dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.NA to BS EN 1990:2002+A1:2005, UK National Annex for Eurocode Basis of structural designLicensed Copy:
14、 Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/11/2009 02:56, Uncontrolled Copy, (c) BSINA to BS EN 1991-3:20064 BSI 2009NATIONAL ANNEXThis page deliberately left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/11/2009 02:56, Uncontrolled Copy, (c) BSIThis page deliberately left blankLic
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