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BS 5268-2:1991

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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Structural use of timber Code of practice for permissible stress design, materials and workmanship

Available format(s)

Hardcopy , PDF

Withdrawn date

15-08-1996

Language(s)

English

Published date

31-07-1991

Committees responsible
Foreword
Code of practice
Section one. General
1 Scope
2 Definitions
3 Symbols
4 Materials
5 Design considerations
Section two. Timber
6 General
7 Species
8 Dimensions and geometrical properties
9 Grades
10 Grade stresses for strength classes and individual
    species
11 Additional properties
12 Duration of load
13 Load-sharing systems
14 Flexural members
15 Compression members
16 Tension members
Section three. Glued laminated timber
17 General
18 Grade stresses for horizontal glued laminated
    members
19 Grade stresses for vertically glued laminated beams
20 Glued end joints in glued laminated timber
21 Glued laminated flexural members
22 Glued laminated compression members
23 Glued laminated tension members
Section four. Plywood
24 General
25 Durability
26 Dimensions and section properties
27 Grades
28 Grade stresses
29 Duration of load
30 Flexural members
Section five. Tempered hardboard
31 General
32 Durability
33 Dimensions and section properties
34 Grades
35 Grade stresses
36 Duration of load
37 Flexural members
Section six. Joints
38 General
39 Secondary stresses
40 Anti-corrosion treatment
41 Nailed joints
42 Screwed joints
43 Bolted joints
44 Toothed-plate connector joints
45 Split-ring connector joints
46 Shear-plate connector joints
47 Glued joints
Section seven. Workmanship, inspection and maintenance
48 General
49 Moisture content
50 Machining and preparation
51 Joints
52 Transportation, storage and handling
53 Assembly and erection
54 Treatments
55 Inspection
56 Maintenance
Section eight. Testing
57 General
58 Testing authority
59 Information required
60 Quality and manufacture of test structure
61 Method of testing
62 Acceptance
63 Test report
64 Use of tested structures
Section nine. Wood chipboard
65 General
66 Durability
67 Dimensions and section properties
68 Grades and marking
69 Grade stresses
70 Duration of load
71 Flexural members
Appendices
A Structural timbers
B Species of timber used in the manufacture of plywood
C Modification factor for compression members
D Geometrical properties of softwoods
E Geometrical properties of hardwoods
F Efficiency ratings of glued end joints in softwoods
G Modulus of elasticity and shear modulus for
    tempered hardboard
H Moisture content determination by oven dry method
J Text deleted
K Text deleted
L Text deleted
M Grade marks for plywood
N Modification factors K74, K75, K76, K77 and K78 for
    determining clear wood stresses
P Text deleted
Q Modulus of elasticity and shear modulus for
    chipboard
NUMEROUS TABLES
Figures
1 Position of end bearing
2 Notched beams
3 Axes in spaced columns
4 Curved glue laminated beam
5 Pitched cambered beam
6 Connector end and edge distance
7 Dimensions of circular recesses for shear-plate
    connector units to BS 1579
8 American construction and industrial plywoods
9 British hardwood plywoods
10 Canadian Douglas fir and softwood plywoods
11 Finnish birch, birch-faced and conifer plywoods
12 Swedish softwood plywood
Index

Guidance for timber, chipboard, plywood, glued laminated timber and tempered hardboard in load bearing members. Makes recommendations on quality, grade stresses and modification factors, the design of joints, testing, workmanship, various treatments which can be applied, inspection and maintenance.

Committee
B/525/5
DevelopmentNote
SUPERSEDES BS 5268:PART 2:1991. BS DRAFT 95/101592 DC REFERS TO A NEW REVISION
DocumentType
Standard
Pages
134
PublisherName
British Standards Institution
Status
Withdrawn
SupersededBy
Supersedes

BS 6399-3(1988) : 1988 LOADING FOR BUILDINGS - PART 3: CODE OF PRACTICE FOR IMPOSED ROOF LOADS
BS 1202-1:1974 Specification for nails Specifications for nails. Steel nails
BS 5268-4.1:1978 STRUCTURAL USE OF TIMBER - PART 4: FIRE RESISTANCE OF TIMBER STRUCTURES - SECTION 4.1: RECOMMENDATIONS FOR CALCULATING FIRE RESISTANCE OF TIMBER MEMBERS
BS 5268-4.2(1990) : 1990 STRUCTURAL USE OF TIMBER - FIRE RESISTANCE OF TIMBER STRUCTURES - RECOMMENDATION FOR CALCULATING FIRE RESISTANCE OF TIMBER STUD WALLS AND JOISTED FLOOR CONSTRUCTIONS
BS 5669-5:1989 Particleboard Code of practice for the selection and application of particleboards for specific purposes
BS 5268-3:1985 Structural use of timber Code of practice for trussed rafter roofs
BS 1204-2:1979 Synthetic resin adhesives (phenolic and aminoplastic) for wood Specification for close-contact adhesives
BS 6399-1:1984 Loading for buildings Code of practice for dead and imposed loads
BS 5669-2:1989 Particleboard Specification for wood chipboard
BS 449-2:1969 Specification for the use of structural steel in building Metric units
BS 5669-1:1989 Particleboard Methods of sampling, conditioning and test

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