BS 227:1970
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for H-section steel arches for use in mines
Hardcopy , PDF
15-09-1995
English
11-12-1970
Cooperating organizations
Foreword
Specification
1. Scope
2. Material
3. Identification marking
4. Sections
5. Shapes of arches
6. Manufacturing tolerances
7. Freedom from defects
8. Jointing and fishplating
Appendices
A. Approximate equivalents of the metric and imperial
dimensions relating to Figs. 3 to 14
B. Details of nuts and bolts (imperial sizes)
C. Information to be given with order
Tables
1. Preferred dimensions of arches
2. Details of three-piece arches
3. H-sections
4. Splayed H-sections
Figures
1. Straight-legged arches
2. Splay-legged arches
3-12. Dimensions of arch sections
13. Arch joint and fishplate details for H-sections
14. Arch joint and fishplate details for splayed
H-sections
15. Details of nuts and bolts (metric sizes)
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