1964_BUILDING_(CONSTRUCTION)_REGULATIONS — Page 44

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 con-

crete 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.

LN 294/76.

TABLE XV

Maximum compressive stress in MPa on walls and piers of concrete. when the slenderness ratio does not exceed 1

1

Maximum permissible

stress

2

Designation of concrete, as specified in regulation 19

MPa

5.3

4.7

4.2

24

1.6

L.N. 95/78.

Grade I

Grade II

Grade III

Grade IV

Grade V

TABLE XVI

[Factor for stenderness ratio of walls and piers built of concrete

2

3

Slenderness

Factor

ratio

Slenderness ratio

Factor

10

-ri***O

1.00

0.97

0.91

0.85

0.79

0.73

240X24

12

0.67

14

0.61

16

0.55

18

0.49

0.40

0.31

Note: The factor for intermediate values of the slenderness ratio shall be deter-

mined by interpolation.