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Posted by Michael Bulatovich on November 18, 2007, 5:39 pm
>
>>
>>> Here is S.Africa, where they had a burglary over a 1 meter high wall,
>>> they have highened the wall to 3 m. with old-used [but good quality]
>>> bricks which they had lying around.
>>>
>>> I have heard of free-standing walls collapsing and killing persons,
>>> eg. in a storm.
>>
>> It happens.
>>
>>> Apparently free-standing walls should have 'posts' built from eg.
>>> 4-bricks at specified intervals ?
>>
>> "Pilasters."
>>
>>> Since the government building inspection department is probably
>>> non-functional since the recent 'liberation take over', I'd like
>>> some international advice.
>>>
>>> The bricks are British imperial sized: 75x 110x 230 mm.
>>> The wall is double bricked, with 'cross-layed' at the top.
>>>
>>> [...]
>>
>> Another variable to consider is the straight length of the masonry
>> wall. Walls with jogs, spaced closely enough, buttress themselves.
>> (Our code here calls for intersecting walls or buttresses (pilasters)
>> at no more than 36x the wall thickness for non-loadbearing walls.)
>
> The UK codes have something similar - can't remember the ratio, 25 years
> since I last had to use it - but that code didn't have seismic
> requirements, or much in the way of wind-loading for free-standing, as I
> recall.
>
> Avoidance of pilasters would require some form of reinforced bond beam
> coping, maybe post-tensioned rods, foundation to coping at ?? spacing.
> Easier to do it in hollow masonry block. Keep the bricks for decorative
> paving. Or crush into pea-gravel for the same purpose :-)
This is already built and the OP is concerned about it...
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