BS 1139-1.1-1990 金属脚手架.第1部分管.第1节钢管规范.pdf
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1、- - - - - - - - - - - - - - - - - - BRITISH STANDARD BS 1139-1.1: 1990 Metal scaffolding Part 1: Tubes Section 1.1 Specification for steel tube BS 1139-1.1:1990 This British Standard, having been prepared under the direction of the Civil Engineering and Building Structures Standards Policy Committee
2、, was published under the authority of the Board of BSI and comes into effect on 31 October 1990 BSI 01-1999 First published as BS 1139 November 1943 Second edition November 1951 Third edition June 1964 Fourth edition, as BS 1139-1, April 1982 Fifth edition, as BS 1139-1.1, October 1990 The followin
3、g BSI references relate to the work on this standard: Committee reference CSB/57 Draft for comment 87/15200 DC ISBN 0 580 18673 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Civil Engineering and Building Structures Standards Policy
4、Committee (CSB/-) to Technical Committee CSB/57, upon which the following bodies were represented: Association of Consulting Engineers Association of Consulting Scientists British Constructional Steelwork Association Ltd. British Steel Industry Building Employers Confederation Concrete Society Const
5、ruction Health and Safety Group Construction Industry Training Board Department of the Environment (Property Services Agency) Electricity Supply Industry in England and Wales Engineering Equipment and Materials Users Association English Net Manufacturers Association Federation of Civil Engineering C
6、ontractors Health and Safety Executive Institute of Building Control Institution of Civil Engineers Institution of Structural Engineers National Association of Formwork Contractors National Association of Scaffolding Contractors National Federation of Master Steeplejacks and Lightning Conductor Engi
7、neers Prefabricated Aluminium Scaffolding Manufacturers Association Suspended Access Equipment Manufacturers Association Amendments issued since publication Amd. No.Date of issueComments BS 1139-1.1:1990 BSI 01-1999i Contents Page Committees responsibleInside front cover Forewordii 0Introduction1 1O
8、bject and field of application1 2References1 3Terminology1 4Steel1 5Manufacture1 6Delivery conditions2 7Testing and certification2 8EN designation3 9Marking3 Annex A (Mandatory) Requirements and quality control of the zinc coating4 Annex B (Mandatory) Requirements and quality control of the paint co
9、ating4 Annex C (Informative) Values for the design of structures7 Figure 1 Maximum deviation of a tube from straight2 Figure 2 Single cutting tool6 Figure 3 Multiple cutting tool6 Table 1 Determination of chemical composition of steel by ladle analysis1 Table 2 Mechanical properties1 Table 3 Nominal
10、 dimensions, mass and tolerances for tubes2 Table 4 Classification of test results7 Publications referred toInside back cover BS 1139-1.1:1990 ii BSI 01-1999 Foreword This Section of BS 1139 has been prepared under the direction of the Civil Engineering and Building Structures Standards Policy Commi
11、ttee. Together with BS 1139-1.2:1990, it supersedes BS 1139-1:1982, which is withdrawn. This Section of BS 1139 is one of a series specifying requirements for the design, construction and testing of equipment for use in scaffolding and other temporary structures. It specifies requirements for steel
12、tubing of the type traditionally used in tubular scaffolding and false-work. Recommendations for the design of tubular scaffolding structures are given in BS 5973 and BS 5974. This standard was previously published as Part 1 of BS 1139:1982 which also contained specifications for aluminium scaffold
13、tube. With the exception of specifying one wall thickness only (i.e. 4 mm), this standard technically aligns with European Harmonization Document HD 1039. Tubing complying with this British Standard also complies with the requirements for type 4 only of HD 1039, and therefore can be classified and m
14、arked “EN 39” (see clauses 8 and 9). BS 1139 is now published in separate Parts and Sections as follows. Part 1: Tubes; Section 1.1: Specification for steel tube; Section 1.2: Specification for aluminium tube; Part 2: Couplers; Section 2.1: Specification for steel couplers, loose spigots and base pl
15、ates for use in working scaffolds and falsework made of steel tubes (Identical with HD 74); Section 2.21): Specification for steel and aluminium couplers, fittings and accessories for use in tubular scaffolding; Part 3: Specification for prefabricated access and working towers; Part 4: Specification
16、 for prefabricated steel splitheads and trestles; Part 52): Specification for materials, dimensions, design loads and safety requirements for service and working scaffolds made of prefabricated elements (Identical with HD 1000). A British Standard does not purport to include all the necessary provis
17、ions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 8, an
18、inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. 1) In preparation: it will cover couplers, fittings and accessories not included in Section 2.1.
19、Additional couplers have not yet been harmonized. 2) In preparation. BS 1139-1.1:1990 BSI 01-19991 0 Introduction This Section of BS 1139 describes a tube intended for use in falsework and working scaffolds. Other very similar tubes are available, and to ensure that scaffolding tubes are able to be
20、identified without doubt on the building site, there is a requirement for marking. Scaffolds or falsework using these tubes should be erected in accordance with sound national practice; in some countries this could restrict the choice of tube. Prefabricated steel scaffold components may be fabricate
21、d with these tubes, or others. The design of such scaffolds will relate to the steel sections actually used in them. 1 Object and field of application This Section of BS 1139 specifies requirements for steel tube intended for use in falsework and in access and working scaffolds constructed with sepa
22、rate tubes and couplers. It has an outside diameter of 48,3 mm, and a wall thickness of 4,0 mm. It also specifies tests on protective coatings and gives values for the design of structures. 2 References The titles of the publications referred to in this standard are listed on the inside back cover.
23、3 Terminology The tube is referred to as “type 4” tube and represents a wall thickness of 4,0 mm. 4 Steel 4.1 Chemical composition Tubes shall be manufactured from steel whose chemical composition shall be in accordance with Table 1. Table 1 Determination of chemical composition of steel by ladle an
24、alysis For steel treated with aluminium, the nitrogen content may be increased to a maximum of 0,015 %. For steel which is to be protected by hot dip galvanizing (see 6.1) the silicon content shall not exceed 0,05 %. The use of rimming steel is not permitted. 4.2 Mechanical properties The mechanical
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- BS 1139-1.1-1990 金属脚手架.第1部分管.第1节钢管规范 1139 1.1 1990 金属 脚手架 部分 钢管 规范
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