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1、BRITISH STANDARD BS 6093:1993 Code of practice for Design of joints and jointing in building construction Licensed Copy: London South Bank University, London South Bank University, Thu Dec 07 01:49:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6093:1993 This British Standard, having been prepared
2、 under the direction of Technical Committee B/212, was published under the authority of the Standards Board and comes into effect on 15 February 1993 BSI 03-1999 First published October 1981 Second edition February 1993 The following BSI references relate to the work on this Standard: Committee refe
3、rence B/212/1 Draft for comment 91/13660 DC ISBN 0 580 21342 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee B/212, Tolerances, drawing practice, modular coordination, joints, project information to Subcommittee B/212/4
4、. Joints and jointing, upon which the following bodies were represented: British Adhesives and Sealants Association Department of the Environment (Building Research Establishment) Department of the Environment (Property Services Agency) Royal Institute of British Architects Amendments issued since p
5、ublication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Thu Dec 07 01:49:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6093:1993 BSI 03-1999i Contents Page Committees responsibleInside front cover Foreword iii 1Scope1 2References1 2.1Normative re
6、ferences1 2.2Informative references1 3Definitions1 3.1Joint design1 3.2Materials for jointing2 4Design of joints2 4.1General2 4.2The need for joints3 4.3Location and frequency of joints3 4.4Procedure for the design of a joint3 4.5Joint functions3 4.6Variation in the sizes of joints4 4.7Dimensioning
7、joints on drawings7 5Materials for jointing7 5.1General7 5.2Sealants7 5.3Gaskets13 5.4Sealing strips16 5.5Joint fillers16 5.6Baffles17 5.7Fire resistant materials17 6Generation of solutions of joints of external walls and roofs17 6.1Basic mechanisms17 6.2Basic examples of external walls17 6.3Single
8、stage sealing of joints of external walls17 6.4Multiple stage sealing of joints or assemblies in external walls22 7Accommodation of movement30 7.1Structural and major movement joints30 7.2Minor movement joints33 8Assembly, installation and maintenance35 8.1Communication35 8.2Control of jointing on s
9、ite35 8.3Preparation for jointing35 8.4Application and insertion of jointing products35 8.5Safety in application of jointing products35 8.6Maintenance35 Annex A (informative) Data for the design of movement joints36 Annex B (normative) Recommendations for the presentation of joint drawings37 Figure
10、1 Examples of type 1 joints6 Figure 2 Examples of type 2 joints6 Figure 3 Examples of type 3 joints7 Figure 4 Examples of type 4 joints8 Figure 5 Elevation showing assembly of panels and joint types in an opening8 Licensed Copy: London South Bank University, London South Bank University, Thu Dec 07
11、01:49:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6093:1993 ii BSI 03-1999 Page Figure 6 Use of back-up materials and bond breakers in movement joints12 Figure 7 Typical examples of gaskets in joints14 Figure 8 Gasket junctions15 Figure 9 Diagrams showing component profiles on plan, for one-sta
12、ge joints indicating seals and sequence of assembly23 Figure 10 Accessibility for preparation, application and maintenance of joints with seals. Diagrams of profiles on plan24 Figure 11 Typical details of curtain walling25 Figure 12 Two-stage vertical joints26 Figure 13 Examples of relation between
13、joint profile and permissible clearances26 Figure 14 Diagram showing overlap in two-stage horizontal joint27 Figure 15 Diagram showing top of baffle in a two-stage horizontal joint: section at horizontal/vertical joint intersection27 Figure 16 Diagram showing typical intersection between horizontal
14、and vertical two-stage joints in an external wall28 Figure 17 Diagrams showing elevations of cladding, indicating how a variety of junctions can be reduced28 Figure 18 Diagrams showing wall sections of basic forms of multilayer construction29 Figure 19 Diagrams showing the processes by which rainwat
15、er leaks through joints29 Figure 20 Diagram showing a typical open rain-screen joint31 Figure 21 Diagram showing a typical labyrinth horizontal open rain-screen joints31 Figure 22 Diagram showing movement joints in structures for differential loadings and ground bearing pressures32 Figure 23 Diagram
16、 showing movement joint in roof structure which forms a discontinuity in the membrane32 Figure 24 Diagram showing movement joint in roofs where traffic prohibits the use of an upstand33 Figure 25 Diagram showing intermediate movement joint in floor tiling33 Figure 26 Diagram showing section through
17、masonry/timber frame external wall34 Figure B.1 Typical jointing detail through transom38 Table 1 Classification of sealants, sealing strips, gaskets and baffles9 Table 2 Fillers for movement joints10 Table 3 Illustrations of basic mechanisms19 Table A.1 Coefficients of linear thermal expansion of c
18、ommon building materials36 Table A.2 Moisture movement of timber37 List of references40 Licensed Copy: London South Bank University, London South Bank University, Thu Dec 07 01:49:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6093:1993 BSI 03-1999iii Foreword This revision of BS 6093 has been pre
19、pared under the direction of Technical Committee B/212, Tolerances, drawing practice, modular coordination, joints, project information. BS 6093 gives guidance on the design of joints and jointing in order to improve performance in building practice and to reduce the incidence of technical failure.
20、Sound building construction depends on proper joints being formed between building components. As a code of practice, this British Standard takes the form of guidance and recommendations. It should not be quoted as if it were a specification and particular care should be taken to ensure that claims
21、of compliance are not misleading. The general structure of BS 6093:1981, which is withdrawn, is retained in this updated version but the emphasis on jointing between precast concrete walling components has been reduced. Greater emphasis is now given to lightweight rain screens. The manner in which t
22、he basic principles of jointing are described remains unchanged. In recent years, many developments in design, construction and materials have supplanted traditional practices. Many proprietary products now encompass the total element, for example curtain walling, compared with separate walling comp
23、onents such as masonry, windows and sealants. The design of jointing for these components is now an integral part of the design of the whole, and performance is dependent on test work and established standards. The basic mechanisms by which these joints perform are however the same as those describe
24、d in this standard, such as profile and geometry. Materials for components such as glass and metal are capable of precision manufacture and the range of dimensional tolerances is not as coarse as that needed for traditional materials, for example masonry and concrete. The consequences of jointing fa
25、ilures are often such as to render buildings unserviceable and to necessitate extremely costly remedial repair works. With the ever increasing importance now being attached to the performance of joints and to the need to specify clearly each type of joint and the standard of workmanship that should
26、be achieved on site, a logical design process is of fundamental importance. This code therefore describes the design processes and mechanisms of a broad range of basic jointing methods in the belief that if the designers are guided along these lines they are better equipped to solve problems for the
27、ir specific designs. Great emphasis is placed upon the need to design for each particular situation in which a joint has to function. The principal factors that the designer has to consider are listed in 4.5 and 4.6, which are based on ISO 3447. Guidance on the use of sealants for joints is given in
28、 BS 6213. Considerably greater knowledge is needed about the performance of materials, building components and jointing solutions, and it is strongly recommended that designers test the joint designs if they have doubts about the design concepts, particularly where the consequences of failures would
29、 be costly. Testing, or at the least the interpretation of test results, needs to take particular account of the effects of accuracy and movements, which it may not be practical to simulate completely under test conditions. Licensed Copy: London South Bank University, London South Bank University, T
30、hu Dec 07 01:49:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6093:1993 iv BSI 03-1999 In addition to this code, the following standards are relevant to joints and jointing: BS 5606, BS 6213, BS 6750, BS 6954 and BS 8000. A British Standard does not purport to include all the necessary provisions
31、 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 to iv, pages 1 to 40, an insi
32、de 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. Licensed Copy: London South Bank University, London South Bank University, Thu Dec 07 01:49:07 GMT+00
33、:00 2006, Uncontrolled Copy, (c) BSI BS 6093:1993 BSI 03-19991 1 Scope This British Standard gives recommendations for the design of joints and the use of jointing products in building construction. Following an analysis of joint functions and of the performance of the parts to be joined, joints are
34、 classified in this standard on the basis of the movements and inaccuracies they have to accommodate. Mechanisms by which joints operate are identified and recommendations are made on the use of sealants and gaskets. Some emphasis is placed on weather resistance of joints in the external envelope of
35、 buildings. The code does not present guidance in the form of a catalogue of proven joint designs, because the extent to which a design is appropriate to a particular use depends on circumstances specific to the building, e.g. its exposure, desired performance, durability and costs. The code therefo
36、re draws attention to matters that need consideration, in order that solutions may be developed that are appropriate. The code does not cover: a) rigidly connected joints (except type 1 joints, see 4.6.4.1); b) joints within components normally made in a factory, such as those around opening lights
37、in windows; c) the load-bearing functions of structural joints; d) glazing (see BS 6262); e) joints in service pipes and ducts and their connections to appliances; f) methods of test for joints or for jointing products. NOTEAll figures in this standard showing detailed joint designs illustrate princ
38、iples in a recognizable context and are not production drawings of proven and universally applicable joints. 2 References 2.1 Normative references This British Standard incorporates, by reference, provisions from specific editions of other publications. These normative references are cited at the ap
39、propriate points in the text and the publications are listed on page 40. Subsequent amendments to, or revisions of, any of these publications apply to BS 6093 only when incorporated in it by updating or revision. 2.2 Informative references This British Standard refers to other publications that prov
40、ide information or guidance. Editions of these publications current at the time of issue of this standard are listed on page 40, but reference should be made to the latest editions. 3 Definitions For the purposes of this British Standard, the definitions given in BS 6100-1.3.6:1991, BS 6100-1.5.1:19
41、84 and BS 6100-1.5.2:1987 apply, together with the following. 3.1 Joint design 3.1.1 induced deviation dimensional deviation caused by work done NOTEThe operations of setting out, manufacture, assembly and erection give rise to this type of deviation. 3.1.2 inherent deviation dimensional deviation c
42、aused by an inherent material property NOTEChanges in temperature, humidity, stress etc. give rise to this type of deviation. 3.1.3 interchangeability ability of a component to be used and jointed satisfactorily with a variety of other components 3.1.4 joint (1)1) construction formed by the adjacent
43、 parts of two or more products, components or assemblies when these are put together, fixed or united with or without the use of a jointing product 3.1.5 joint (2)1) position in the construction works where the joint (1) is situated 3.1.6 joint clearance2) distance between the joint faces of adjacen
44、t building components, i.e. the joint gap widths considered in order to achieve fit 3.1.7 joint gap2) space between adjacent components, with or without a jointing product 1) Definition repeated from BS 6100-1.3.6. 2) Definition differs from that given in BS 6100. Licensed Copy: London South Bank Un
45、iversity, London South Bank University, Thu Dec 07 01:49:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6093:1993 2 BSI 03-1999 3.1.8 joint geometry disposition of all the parts that contribute to the functions of a joint 3.1.9 joint profile3) form of that part of the cross section of a joint deri
46、ved from each of its components 3.1.10 joint reference plane4) theoretical reference plane from which the relative position of the joint profiles of adjacent building components and/or associated jointing products may be determined 3.1.11 movement accommodation factor (MAF) of a sealant maximum move
47、ment which a sealant is capable of tolerating throughout its working life, expressed as a percentage of the minimum joint width 3.2 Materials for jointing 3.2.1 seal4) physical barrier that is notionally impenetrable and is in contact with the components forming the joint NOTEThe term does not presu
48、ppose the use of any particular material or mechanism, but implies effectiveness in sealing against whatever agent is relevant, such as water, air, fire or sound. 3.2.2 sealant4) 5) material which, applied in an unformed state to a joint, seals it by adhering to appropriate surfaces within the joint
49、 3.2.3 elastic sealant5) sealant which after application exhibits predominantly elastic behaviour, i.e. remaining stresses induced in the sealant as a result of joint movement are almost proportional to the strain 3.2.4 plastic sealant5) sealant which after application retains predominantly plastic properties, i.e. the remaining stresses induced in the sealant as a result of joint movement are rapidly relieved 3.2.5 elastoplastic sealant4) sealant which after application has predominantly elastic properties but exhib
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