BS 227:1995

Committees responsible
Foreword
Specification
1. Scope
2. Normative references
3. Definitions
4. Information and requirements to be agreed and to be
     documented
5. Common requirements
6. Semi-circular and double radiused arches
7. Cambered and flat top arches
Annexes
A. (normative) Material testing
B. (normative) Joint assembly testing
Tables
1. Steel properties
2. Preferred sections
3. Semi-circular arch forms
4. Preferred double radiused 3-piece arch forms in
     127 x 114 mm and 152 x 127 mm H-section
Figures
1. Tolerances on cross-section
2. Rolled steel in-web fishplated joint
3. Pressed steel in-web fishplated joint
4. Wrap-around fishplated joint
5. Fish bolt
6. Semi-circular arch
7-42.Strut hole positioning
43. Semi-circular arch: refuge hole type
44. Double radiused arch
45. Joint holes in semi-circular and double radiused
     arch members
46. Cambered top arch with 120 deg cranked fishplate
47. Cambered top arch with 135 deg cranked fishplate
48. Flat top arch with 120 deg cranked fishplate
49. Flat top arch with 135 deg cranked fishplate
50. Flat top arch with straight vertical legs and beam
     overhang
51. Flat top arch with straight inclined legs and beam
     overhang
52. Hole details for cranked fishplates in arch members
     with mitred ends
53. Hole details for cranked fishplates in arch members
     with square cut ends
B.1.1 Test arrangements for flange-mounted joint
       assemblies: closure
B.1.2 Test arrangements for flange-mounted joint
       assemblies: opening
B.1.3 Test arrangements for flange mounted joint
       assemblies: lateral bending
B.2.1 Test arrangements for end-mounted joint
       assemblies: closure
B.2.2 Test arrangements for end-mounted joint
       assemblies: opening
B.2.3 Test arrangements for end-mounted joint
       assemblies: lateral bending
B.3.1 Test arrangements for angled fishplate joint
       assemblies: closure
B.3.2 Test arrangements for angled fishplate joint
       assemblies: opening
B.3.3 Test arrangements for angled fishplate joint
       assemblies: lateral bending
B.4.1 Test arrangements for fishplate joint
       assemblies: closure
B.4.2 Test arrangements for fishplate joint
       assemblies: opening
B.4.3 Test arrangements for fishplate joint
       assemblies: lateral bending
List of references

Specifies requirements for H-section steel arches for use in underground roadways in mines. Applies to semi-circular and double radiused profile arches and cambered and flat- top arches. Excludes H-section steel arches used in roadway junction structures.

This British Standard specifies requirements for H-section steel arches for use in underground roadways in mines.

This standard applies to semi-circular and double radiused profile arches and cambered and flat-top arches.

This standard excludes H-section steel arches used in roadway junction structures.

In addition to the definitive requirements, this standard also requires the items detailed in 6.1, 6.2, 7.1 and 7.5 to be documented. For compliance with this standard, both the definitive requirements and the documented items have to be satisfied.

NOTE Dimensions on figures are in millimetres.