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  • BS 5291(1984) : 1984

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    SPECIFICATION FOR MANUFACTURE OF FINGER JOINTS OF STRUCTURAL SOFTWOOD

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-11-1995

    Language(s):  English

    Published date:  01-01-1984

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Committees responsible
    Specification
    Section one. General
    0. Introduction
    1. Scope
    2. Definitions
    Section two. Manufacturing requirements
    3. Timber
    4. Joint spacing
    5. Adhesives
    6. Moisture content
    7. Finger cutting
    8. Gluing
    9. Preservative and flame retardent treatments
    10. Marking
    Section three. Quality control
    11. General
    12. Records
    13. Sampling
    14. Preparation of specimens
    15. Testing
    16. Batch acceptance requirements
    Section four. Joint efficiency rating
    17. General
    18. Sampling
    19. Preparation of specimens
    20. Testing
    Appendices
    A. Names and species of structural softwoods
    B. Assessment of joint strength for quality control
    C. Glue mix slip test
    D. Determination of joint efficiency rating
    Tables
    1. Minimum joint testing frequency during production
    2. Minimum breaking stress for unjointed defect-free
        softwood
    3. Guide to the efficiency ratings of some profiles
        in bending
    4. Names and botanical species of structural softwoods
        to be used for finger joints
    5. Factor for depth
    6. Factor for moisture content
    7. Factor for calculation of control limits for minimum
        and mean breaking loads
    8. Values of alpha
    9. Factor for density
    Figures
    1. Typical profile of a finger joint
    2. Restrictions on knots
    3. Wane and cross section of wane and edge damage
    4. Arrangement of bending test apparatus on specimen
        with a finger joint at mid-span
    5. Close-contact joint

    Abstract - (Show below) - (Hide below)

    Describes requirements for the manufacture of cut, interlocking, glued finger joints in structural softwood members, quality control of their manufacture and assessment of efficiency ratings. Includes requirements for timber, joint spacing, adhesives, moisture content, cutting, glueing, preservative and flame retardant treatments. Does not cover impressed joints and in laminated timber applies only to individual laminations.

    General Product Information - (Show below) - (Hide below)

    Committee TIB/51
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 5268-4.1(1978) : 1978 STRUCTURAL USE OF TIMBER - PART 4: FIRE RESISTANCE OF TIMBER STRUCTURES - SECTION 4.1: RECOMMENDATIONS FOR CALCULATING FIRE RESISTANCE OF TIMBER MEMBERS
    BS 1186-2:1988 Timber for and workmanship in joinery Specification for workmanship

    Standards Referencing This Book - (Show below) - (Hide below)

    BS 6100-4.1(1984) : 1984 GLOSSARY OF BUILDING AND CIVIL ENGINEERING TERMS - FOREST PRODUCTS - CHARACTERISTICS AND PROPERTIES OF TIMBER AND WOOD BASED PANEL PRODUCTS
    BS 6100-4.3:1984 GLOSSARY OF BUILDING AND CIVIL ENGINEERING TERMS - FOREST PRODUCTS - WOOD BASED PANEL PRODUCTS
    BS 6100-4.5:1984 GLOSSARY OF BUILDING AND CIVIL ENGINEERING TERMS - FOREST PRODUCTS - CORK
    BS 6100-4.4(1985) : 1985 GLOSSARY OF BUILDING AND CIVIL ENGINEERING TERMS - FOREST PRODUCTS - CARPENTRY AND JOINERY
    BS 6100-4.2:1984 GLOSSARY OF BUILDING AND CIVIL ENGINEERING TERMS - FOREST PRODUCTS - SIZES AND QUANTITIES OF SOLID TIMBER
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