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南非土木工程施工标准 K部分 墙壁 英文原文节选 20100079 3-11 |
BALUSTRADE WALLS
KK1O.l Any balustrade wall shall conform to the requirements contained in rule DD2.
KK10.2 Notwithstanding the requirements of KK1O.l in any building-
(a) solid masonry balustrade walls shall -
(i)
(ii)
be tied to reinforced concrete or brick columns or bonded into return
walls or reinforced brick piers;
where deemed necessary, be provided with expansion joints spaced
not more than 8 m apart where such wall is supported by reinforced
concrete or brick columns or reinforced brick piers and such expansion
joints shall be formed in such columns or piers;
(b) return walls and reinforced brick piers shall be bonded into the structural
beam or slab, and return walls shall not be spaced further apart than 6,O m
for 230 mm thick walls or 5,O m for 190 mm thick walls or 4,O m for 110 mm
thick walls;
(c) brick balustrade walls shall be reinforced in the highest four bed joints
with reinforcement consisting of two strands of galvanized steel wire not
!ess than 3,5 mm in diameter, or two flat galvanized strips of equivalent
area and such reinforcement shall have a lap of not less than 150 mm with
the anchors to the supporting columns or piers.
KK11 FREE-STAN DI NG WALLS
KK11.1 (a) Where any free-standing wall is a masonry wall -
(i) the courses of such wall shall be laid in any acceptable fully-bonded
pattern;
(ii) the height, thickness and pier size of such wall shall conform to
the relevant values given in Table 5 and any cavities in piers in a
wall constructed of hollow units shall be filled with concrete.
(b) In the case of a precast concrete fence the fixing of posts shall be in accordance
with Appendix C of SABS 1372.
KK11.2 (a) A damp-proof course shall not be installed in any free-standing wall.
(b) Where moisture is likely to be encountered from ground water, high density
bricks with a water absorption of not more than 7% shall be used in
any free-standing wall up to 150 mm above ground level.
75 SABS 0400-1990
KK11.3 Where any wall consists of two or more sections of different thicknesses -
(a) the thickness of the top section shall be less than that of any lower section;
(b) the height of the top section shall not be greater than 80% of the maximum
height given in Table 5 for the thickness in question;
(c) the sum of the heights of the various sections of such wall shall not be
greater than the maximum height given in Table 5 for the thickest section
of such wall; and
(d) any piers used in the thickest section of such wall shall extend, without
reduction in size, to the top of such wall.原件下载：  |
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