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1、BRITISH STANDARD BS 5516:1991 Code of practice for Design and installation of sloping and vertical patent glazing Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 15:57:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5516:1991 This British Standard, having been prepared under the direction of
2、 the Elements and Components (of Diverse Materials) for Buildings Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 30 April 1991 BSI 04-1999 First published, as CP145.101. April 1951 Second edition, as CP145-1, January 1969 Third edition,
3、as BS 5516, December 1977 Fourth edition April 1991 The following BSI references relate to the work on this standard: Committee reference ECB/25 Draft for comment 89/11294 DC ISBN 0 580 19167 2 Committees responsible for this British Standard The preparation of this British Standard was entrusted by
4、 the Elements and Components (of Diverse Materials) for Buildings Standards Policy Committee (ECB/-) to Technical Committee ECB/25, upon which the following bodies were represented: Flat Glass Manufacturers Association Glass and Glazing Federation Institution of Structural Engineers Patent Glazing C
5、ontractors Association Royal Institute of British Architects Royal Institution of Chartered Surveyors Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 15:57:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5516:1991 BSI 04-1999i Contents
6、 Page Committees responsibleInside front cover Forewordiii Section 1. General 0Introduction1 1Scope1 2Definitions1 3Provision of information3 Section 2. Components, materials and finishes 4General4 5Supporting members, flashings, ancillary components and finishes4 6Infillings7 7Sealing and glazing m
7、aterials8 Section 3. Design 8General9 9Selection of materials9 10Structural9 11Openings34 12Fire35 13Weather resistance35 14Heat conservation36 15Condensation37 16Solar heat gain37 17Thermal safety40 18Transmission of light40 19Sound reduction41 20Durability41 21Human safety42 22Security44 23Access
8、for maintenance and cleaning44 Section 4. Work on site 24Storage of materials45 25Installation45 Section 5. Maintenance 26Access for maintenance and cleaning49 27Inspection49 28Cleaning49 29Other maintenance51 Appendix A Symbols52 Appendix B Wind load53 Appendix C Snow load53 Appendix D Dead load (s
9、elf-weight)54 Appendix E Maintenance load54 Appendix F Determination of working pressures for patent glazing54 Appendix G Determination of working pressures for supporting members55 Appendix H Determination of required geometric properties of section for supporting members56 Appendix J Plastics glaz
10、ing sheet materials57 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 15:57:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5516:1991 ii BSI 04-1999 Page Appendix K Thermal stress in glass61 Figure 1 Aluminium patent glazing bars5 Figure 2 Recommended minimum thicknesses of glass for infilli
11、ng18 Figure 2(a) Two-edge supported annealed glass (float, cast, polished wired and wired cast)18 Figure 2(b) Two-edge supported toughened (tempered) float glass19 Figure 2(c) Two-edge supported laminated float glass20 Figure 2(d) Two-edge supported double glazing units (symmetrical) (float and toug
12、hened (tempered) float)21 Figure 2(e) Two-edge supported double glazing units (asymmetrical) (float, cast, toughened (tempered) float, laminated float, polished wired and wired cast)22 Figure 2(f) Four-edge supported annealed glass (float, cast, polished wired and wired cast)23 Figure 2(g) Four-edge
13、 supported toughened (tempered) float glass24 Figure 2(h) Four-edge supported laminated float glass25 Figure 2(i) Four-edge supported double glazing units (symmetrical) (annealed float glass)26 Figure 2(j) Four-edge supported double glazing units (symmetrical) (laminated float and toughened (tempere
14、d) float)27 Figure 2(k) Four-edge supported double glazing units (asymmetrical) (toughened (tempered) float and laminated float)28 Figure 2(l) Four-edge supported double glazing units (asymmetrical) (float, laminated float, polished wired and wired cast)29 Figure 2(m) Four-edge supported double glaz
15、ing units (asymmetrical) (cast, polished wired and wired cast)30 Figure 3 Recommended minimum thicknesses of solid plastics glazing sheet material for infilling31 Figure 3(a) Two-edge supported panes and four-edge supported panes with aspect ratios of pane greater than 3.5 : 131 Figure 3(b) Four-edg
16、e supported panes with aspect ratios of pane from 2.5 : 1 to 3.5 : 132 Figure 3(c) Four-edge supported panes with aspect ratios of pane from 1.5 : 1 to 2.5 : 133 Figure 3(d) Four-edge supported panes with aspect ratios of pane from 1.0 : 1 to 1.5 : 134 Figure 4 Additional framing at entrances36 Figu
17、re 5 Typical rack for the storage of glass46 Figure 6 Dimensional and positional tolerances of patent glazing47 Figure 7 Use of ladders and crawling boards for temporary access50 Figure 8 Edge clearance and edge cover for plastics glazing sheet materials59 Figure 9 Cutting hollow section plastics gl
18、azing sheet materials60 Table 1 Fire performance of glass35 Table 2 Thermal transmittance (U-values) of glass (single glass and sealed double glazing units)38 Table 3 Thermal transmittance (U-values) of plastics glazing sheet materials (single and double sheet and hollow section)38 Publications refe
19、rred to62 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 15:57:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5516:1991 BSI 04-1999iii Foreword This British Standard has been prepared under the direction of the Elements and Components (of Diverse Materials) for Buildings Standards Policy C
20、ommittee. It is a revision of BS 5516:1977, which is withdrawn. This edition gives recommendations for the use of plastics glazing sheet materials as infilling and contains more detailed advice about the structural design of patent glazing. Subjects not previously dealt with and now included are hum
21、an safety, security, thermal safety and finishes of materials. Assessed capability. Users of this British Standard are advised to consider the desirability of assessment and registration of a suppliers quality systems against the appropriate Part of BS 5750 by a third party certification body. A Bri
22、tish Standard does not purport to include all the necessary provisions 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 fro
23、nt cover, an inside front cover, pages i to iv, pages 1 to 62, an 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. Licensed Copy: sheffieldun shef
24、fieldun, na, Mon Dec 04 15:57:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 15:57:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5516:1991 BSI 04-19991 Section 1. General 0 Introduction Patent glazing is the term applied to a self-dra
25、ining and ventilated system of dry glazing which does not rely necessarily for its watertightness upon external glazing seals. It consists essentially of a series of longitudinal supporting members, i.e. patent glazing bars, and an infilling of glass or other suitable infill material. Patent glazing
26、 bars are attached to and supported by structural members, either directly or indirectly, but are not usually connected together in the form of a frame. Patent glazing systems are described by the number of edges by which the infilling is supported by the supporting members. a) Two-edge systems are
27、those in which the infilling is fully supported by patent glazing bars on two opposite longitudinal edges only. Horizontal flashings or other weatherings are normally provided at the top and bottom edges and between panes. b) Four-edge systems are those in which the infilling is fully supported by p
28、atent glazing bars on two opposite longitudinal edges and additionally on the other two edges by transverse supporting members. 1 Scope This standard gives recommendations for the design, manufacture, installation and maintenance of sloping and vertical patent glazing systems attached to and support
29、ed by structural members of adequate strength, stiffness and stability. All the recommendations apply to flat, including faceted, patent glazing. The recommendations also apply to curved patent glazing except for the structural design of curved patent glazing. The patent glazing systems included in
30、this standard comprise supporting members of aluminium or steel for two-edge and four-edge systems for single and double glazing, and other components. A range of transparent and opaque infillings of glass, plastics glazing sheet and other materials is included; specific information on plastics glaz
31、ing sheet materials is given in Appendix J. This standard covers the use of patent glazing in permanent buildings and structures, other than greenhouses. Clauses which are relevant also apply to the use of patent glazing inside buildings. The procedure for structural design given in this standard is
32、 based on permissible stress design. Limit state design may be used but is not included in this standard. This standard does not include the design of the supporting structure to which the patent glazing is attached. NOTEThe titles of the publications referred to in this standard are listed on page
33、62. 2 Definitions For the purposes of this British Standard the following definitions apply, together with the symbols in Appendix A. 2.1 aspect ratio of pane ratio of the longer to the shorter side of a rectangular pane 2.2 butt joint joint between edges of adjacent panes of infilling, usually hori
34、zontal and weathered by a came or sealant 2.3 came non-loadbearing member used to weather a horizontal butt joint in a two-edge system of patent glazing 2.4 cap strip, which may retain infilling, fitted over a patent glazing bar to impede direct water penetration (See Figure 1) 2.5 fastener mechanic
35、al device for securing patent glazing to the supporting structure, or for connecting or fastening one part to another 2.6 fixing item or assembly of items which forms the attachment of patent glazing to the supporting structure 2.7 fixing bracket fitting attached to a patent glazing bar and secured
36、to a structural member by fasteners NOTECleat, plate, shoe and slipper are deprecated terms for fixing bracket. 2.8 flashing strip of impervious material, usually metal, dressed or fitted in order to exclude water from the junction between patent glazing and adjacent material or between joints in pa
37、tent glazing Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 15:57:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5516:1991 2 BSI 04-1999 2.9 four-edge system patent glazing with infilling fully supported on four edges 2.10 glazing stop fitting attached to the lower end of a patent glazing
38、bar to prevent the infilling from sliding 2.11 head top member in patent glazing, usually horizontal 2.12 infilling sheet material that occupies the space between supporting members 2.13 pane infilling cut to size and shape 2.14 patent glazing bar longitudinal supporting member in patent glazing tha
39、t spans between structural members and incorporates water channels 2.15 setting blocks pieces of resilient material used at the bottom edge of infilling 2.16 sill bottom member in patent glazing, usually horizontal 2.17 sloping patent glazing patent glazing at an angle of less than 75 to the horizon
40、tal 2.18 spacing perpendicular distance between the centres of two adjacent parallel supporting members, measured in the plane of the glazing 2.19 span of infilling perpendicular distance between two adjacent parallel supporting members, measured in the plane of the glazing 2.20 span of supporting m
41、ember parallel distance between the centres of two adjacent points of attachment of a supporting member to a structural member, or to another supporting member, measured in the plane of the glazing 2.21 storm clip fitting attached to a patent glazing bar to restrain the infilling against negative wi
42、nd pressure 2.22 supporting member member that supports and retains the edge of infilling 2.23 transom intermediate transverse supporting member in a four-edge system of patent glazing, spanning between patent glazing bars and incorporating a water channel 2.24 two-edge system patent glazing with in
43、filling fully supported on two opposite longitudinal edges 2.25 vertical patent glazing patent glazing at an angle of 75 or more to the horizontal 2.26 water channel groove within the section profile of a supporting member to collect and drain water to the outside of the building, either directly or
44、 indirectly (See Figure 1) 2.27 weathering strip of material to control the passage of water and/or air through a joint in patent glazing, or between patent glazing and adjacent material 2.28 wing metal strip fitted to the side of a patent glazing bar to retain infilling and impede direct water pene
45、tration (See Figure 1) Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 15:57:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5516:1991 BSI 04-19993 3 Provision of information 3.1 General To ensure that the intentions of the building designer and the requirements of the patent glazing contrac
46、tor are clearly understood, consultation is recommended at both the initial design and tender stages. Information normally required by the patent glazing contractor is given in 3.2 to 3.4 and is usually best provided in the form of drawings, specifications, bills of quantities or other related docum
47、ents. 3.2 Design and performance Information which should be provided by the building designer includes the following: a) location, degree of exposure and the altitude of the site where the building is situated; b) intended use and occupancy of the building together with any specific performance cri
48、teria in respect of the following: 1) fire (see clause 12); 2) weather resistance (see clause 13); 3) heat conservation (see clause 14); 4) condensation (see clause 15); 5) solar heat gain (see clause 16); 6) thermal safety (see clause 17); 7) transmission of light (see clause 18); 8) sound reductio
49、n (see clause 19); 9) durability (see clause 20); 10) human safety (see clause 21); 11) security (see clause 22); c) details of any environmental factors or atmospheric conditions which may have an adverse effect on the patent glazing, especially any corrosive conditions; d) position of the patent glazing on the building, the external dimensions of the building and details of any features which may affect the distribution of wind or snow; e) design loads for the particular situation of the patent glazing; f) details o
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