B 44
[Subsidiary]
L.N. 294/76.
CAP. 123] Building (Construction) Regulations
Provided that the slenderness ratio shall not exceed-
(a) in the case of a pier, 18;
[1985 Ed.
(b) in the case of a wall with the minimum reinforcement
specified in paragraph (4), 24.
(3) The compressive stress shall be deemed to be the sum of the dead and imposed loads distributed uniformly over the area sustaining such load.
(4) (a) Shrinkage reinforcement shall be provided in all concrete walls.
(b) The volume of that reinforcement shall be not less than 0.4 per cent of the volume of the concrete in the wall, and half of that reinforcement shall be disposed vertically and half horizontally.
(c) The reinforcement shall be disposed near the wall surface and the spacing of bars shall not exceed 300 mm.
L.N. 294/76.
TABLE XV
Maximum compressive stress in MPa on walls and piers of concrete, when the slenderness ratio does not exceed 1
1 2 Maximum permissible stress Designation of concrete, as specified in regulation 19 MPa 5.3 Grade I 4.7 Grade II 4.2 Grade III ... Grade IV 1.6 Grade V L.N. 95/78.TABLE XVI
Slenderness ratio Factor Slenderness ratio Factor 10 1.00 16 0.55 12 0.97 18 0.49 14 0.91 20 0.40 24 0.31Note: The factor for intermediate values of the slenderness ratio shall be determined by interpolation.