1985 Ed.]
Building (Construction) Regulations
[CAP. 123
B 23
[Subsidiary]
TABLE VIII
Reductions of minimum imposed loads
Number of floors carried by member under consideration
1 2 3 4 5 or more
Percentage reduction of minimum imposed load on all floors above the member under consideration
0 10 20 30 40
(b) Where a single span of beam supports not less than 45 m2 of floor at any one level, the minimum imposed load (not including induced wind load), for the purpose only of determining the design of the beam, may be deemed to be subject to a reduction of 5 per cent for each complete 45 m2 of that floor so supported but not more than 20 per cent in all.
(c) The reduction specified in sub-paragraph (a) or (b), whichever is the greater, may be taken into account in calculating the total load on any column, pier, wall or foundation.
(d) The reductions specified in sub-paragraphs (a), (b) and (c) shall not apply with respect to-
(i) the floors of factories and workshops whereof the minimum imposed load per m2 is 6 kN or less;
(ii) the floors of warehouses, of garages, and floors used for storage purposes; or
(iii) induced wind load.
(5) Parapets, handrails and balustrades, together with the connexions and members which give them immediate structural support, shall be designed for the following minimum horizontal static loads (which shall be assumed to act at handrail or coping level) or for wind effects (where applicable)-
(a) stairways, landings and balconies for domestic buildings in single occupancy-0.35 kN/m;
(b) balustrades, parapets, handrails and barriers in places of assembly or in garages-2.2 kN/m;
(c) all other stairways, landings and balconies and all parapets, handrails and balustrades to roofs and retaining walls-0.75 kN/m.
(6) No building or part of a building shall be deemed to comply with paragraph (5) with respect to any moving load or loads from machinery inducing vibration unless adequate provision for all dynamic effects has been made to the satisfaction of the Building Authority.
L.N. 294/76.
L.N. 294/76.
L.N. 294/76.
1985 Ed.]
Building (Construction) Regulations
[CAP. 123
B 23
[Subsidiary]
TABLE VIII
Reductions of minimum imposed louds
Number of floors carried by member
under consideration
1
3
4
5 or more
2
Percentage reduction of minimum imposed load on all floors above the member under consideration
0
10
20
30
40
(b) Where a single span of beam supports not less than 45 m2 of floor at any one level, the minimum imposed load (not including induced wind load), for the purpose only of determining the design of the beam, may be deemed to be subject to a reduction of 5 per cent for each complete 45 m2 of that floor so supported but not more than 20 per cent in all.
(c) The reduction specified in sub-paragraph (a) or (b), which- ever is the greater, may be taken into account in calculating the total load on any column, pier, wall or foundation. (d) The reductions specified in sub-paragraphs (a), (b) and (c)
shall not apply with respect to-
(i) the floors of factories and workshops whereof the minimum imposed load per m2 is 6 kN or less;
(ii) the floors of warehouses, of garages, and floors used for storage purposes; or
(iii) induced wind load.
(5) Parapets, handrails and balustrades, together with the connexions and members which give them immediate structural support, shall be designed for the following minimum horizontal static loads (which shall be assumed to act at handrail or coping level) or for wind effects (where applicable)-
(a) stairways, landings and balconies for domestic buildings in
single occupancy-0.35 kN/m;
(b) balustrades, parapets, handrails and barriers in places of
assembly or in garages-2.2 kN/m;
(c) all other stairways, landings and balconies and all para- pets, handrails and balustrades to roofs and retaining walls-0.75 kN/m.
(6) No building or part of a building shall be deemed to comply with paragraph (5) with respect to any moving load or loads from machinery inducing vibration unless adequate provision for all dynamic effects has been made to the satisfaction of the Building Authority.
L.N. 294/76.
L.N. 294/76.
L.N. 294/76.
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