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BS 5977-1:1981

Current
Current

The latest, up-to-date edition.

Lintels Method for assessment of load
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-12-1981

Foreword
Cooperating organizations
Method
1 Scope
2 References
3 Definitions
4 Basic principles
5 Limiting conditions
6 Loads
7 Assessment of load for lintel supporting wall without
   openings within the interaction zone
8 Assessment of load for lintel supporting wall with
   one or more openings within the interaction zone
9 Assessment of load for lintel directly supporting
   roof or point loads
Appendix
A Use of assessed loads for design or selection of
   lintels
Tables
1 Conversion factors for determining equivalent UDLs
   from assessed UDLs
2 Conversion factors for determining equivalent UDLs
   from point loads close to the lintel
Figures
1 Load triangle and interaction zone
2 Dispersion of loads
3 Effect of openings above the lintel
4 Example showing the loads on lintel with floor,
   partition and opening over the lintel
5 Example showing the loads on lintels supporting walls

Method for assessment of load carried by lintels in masonry of up to 4.5 metres in span for single storey buildings and of up to 3.6 metres in span for two or three storey buildings in normal domestic use.

This Part of BS 5977 describes a method for assessing the load carried by lintels in masonry: where lintels span up to 4.5 m in single storey buildings and up to 3.6 m in two or three storey buildings in normal domestic use; and where no openings are wholly or partly within the load triangle (see 3.2). Appendix A gives guidance on the use of assessed loads for design or selection of lintels, but does not cover assessment of the overall stability of the structure or the design of adjacent masonry. NOTE It has been assumed in the drafting of this Part that the assessment of load on a lintel is entrusted to chartered structural or civil engineers or other appropriately qualified persons, for whose guidance it has been prepared. The responsibility for providing adequate support for lintels and for compatibility between lintels and other parts of the supporting structure rests with the designer responsible for the overall stability of the building. For guidance, see BS 5628-1.

Committee
B/519/3
DevelopmentNote
Supersedes 79/13060 DC (09/2005) Reviewed and confirmed by BSI, January 2010. (12/2009)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Current

BS ISO 15686-1:2011 Buildings and constructed assets. Service life planning General principles and framework
BS 5628-3:2005 CODE OF PRACTICE FOR THE USE OF MASONRY - PART 3: MATERIALS AND COMPONENTS, DESIGN AND WORKMANSHIP
09/30172555 DC : 0 BS ISO 15686-1 REV - BUILDINGS AND CONSTRUCTED ASSETS - SERVICE LIFE PLANNING - PART 1: GENERAL PRINCIPLES AND FRAMEWORK
DD ENV 1996-1.1 : DRAFT DEC 1996 EUROCODE 6: DESIGN OF MASONRY STRUCTURES - GENERAL RULES FOR BUILDINGS - GENERAL RULES FOR BUILDINGS - RULES FOR REINFORCED AND UNREINFORCED MASONRY (TOGETHER WITH UNITED KINGDOM NATIONAL APPLICATION DOCUMENT)
05/30131954 DC : DRAFT APR 2005 BS 5628-3 - CODE OF PRACTICE FOR THE USE OF MASONRY - PART 3: MATERIALS AND COMPONENTS, DESIGN AND WORKMANSHIP
BS 5977-2:1983 Lintels Specification for prefabricated lintels
ISO 15686-1:2011 Buildings and constructed assets — Service life planning — Part 1: General principles and framework
I.S. 255:1983 PRECAST REINFORCED CONCRETE LINTELS

BS 5628-3:1985 Code of practice for use of masonry Materials and components, design and workmanship
BS 6399-1:1984 Loading for buildings Code of practice for dead and imposed loads
BS 648:1964 Schedule of weights of building materials
BS 5628-2:1985 Code of practice for use of masonry Structural use of reinforced and prestressed masonry
BS 5628-1:1978 Code of practice for use of masonry Structural use of unreinforced masonry

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