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BSI
BS 4074:2000

BS 4074:2000

Current

Current

The latest, up-to-date edition.

Specification for steel trench struts

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-10-2000

Publisher

British Standards Institution

Committees responsible
Foreword
1 Scope
2 Normative references
3 Definitions
4 Designation
5 Materials
6 Construction
7 Strength
8 Marking
Annex A (informative) Examples of calculations on trench
                      strut pin connections
Annex B (informative) Typical materials
Annex C (normative) Test for unintentional disengagement
Bibliography
Figure 1 - Steel trench strut
Figure 2 - Thread and collar nut clearances
Figure 3 - Calculated thickness, t, of threaded tube
Figure 4 - Dimensions of collar nut
Table 1 - Principle dimensions of trench struts
Table 2 - Minimum yield strength
Table B.1 - Typical materials

Gives the requirements for adjustable compression tubular steel trench struts, which relate to the design, materials, dimensions, strength, and resistance to inintentional disengagement. The dimensions specified include the lengths fully open and fully closed. It does not give information on the use on trench struts.

This British Standard specifies requirements for adjustable compression tubular steel trench struts. The requirements relate to materials, design, dimensions, strength and resistance to unintentional disengagement. The dimensions specified include the lengths fully open and fully closed.

The standard does not give information on the use of trench struts.

NOTE 1 The requirements of this standard are intended to ensure that the struts will have a characteristic resistance of 50 kN at all extensions. The standard does not specify a requirement for this characteristic resistance or a means of verifying it. Annex A gives examples of calculations on trench strut pin connections.

NOTE 2Various protective finishes are specified in BS EN 1065:1999.

Committee
B/514/21
DevelopmentNote
Supersedes BS 4074(1982) & 97/109950 DC (03/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Current
Supersedes

BS EN 10219-1:2006 Cold formed welded structural hollow sections of non-alloy and fine grain steels Technical delivery requirements
BS EN 10025:1993 Hot rolled products of non-alloy structural steels. Technical delivery conditions
BS EN 1563:2011 Founding. Spheroidal graphite cast irons
BS EN 10113-3:1993 Hot-rolled products in weldable fine grain structural steels Delivery conditions for thermomechanical rolled steels
ISO 2937:1974 Plain end seamless steel tubes for mechanical application
BS EN 10155:1993 Structural steels with improved atmospheric corrosion resistance. Technical delivery conditions
BS EN 10210-1:2006 Hot finished structural hollow sections of non-alloy and fine grain steels Technical delivery requirements
BS EN 10113-1:1993 Hot-rolled products in weldable fine grain structural steels General delivery conditions
ISO 3305:1985 Plain end welded precision steel tubes — Technical conditions for delivery
ISO 3304:1985 Plain end seamless precision steel tubes — Technical conditions for delivery
BS EN 1562:2012 Founding. Malleable cast irons
BS EN 10219-2:2006 Cold formed welded structural hollow sections of non-alloy and fine grain steels Tolerances, dimensions and sectional properties
BS EN 10210-2:2006 Hot finished structural hollow sections of non-alloy and fine grain steels Tolerances, dimensions and sectional properties
BS EN 10083-2:2006 Steels for quenching and tempering Technical delivery conditions for non alloy steels
BS EN 10083-1:2006 Steels for quenching and tempering General technical delivery conditions
BS EN 10113-2:1993 Hot-rolled products in weldable fine grain structural steels Delivery conditions for normalized/normalized rolled steels
BS EN 1065:1999 Adjustable telescopic steel props. Product specifications, design and assessment by calculation and tests

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