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Posted by richard on July 23, 2006, 10:38 pm
I am considering a project which would require the use of cement pillars.
What I need to know is a rough idea of how much weight a cement pillar would
hold.
The pillar will be circular with a six inch diameter and assume a height of
10 feet.
Knowing that a rebar, or two, would improve the weight, by how much per
rebar?
If you would like, consider a wall 20 feet long with pillars as described,
one foot apart.
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Posted by Italian on July 23, 2006, 11:17 pm
Give me more info...
Required by whom?
Knowing that a rebar, or two, would improve the weight, by how much per
show/hide quoted text
> rebar?
6" x 10' at this ratio it would have to be almost all steel covered by
concrete....to hold anything remember its not just vertical load you
have to consider its horizontal also. At the ratio you mentioned simply
leaning upagainst this pillar would cause me fear.
If you would like, consider a wall 20 feet long with pillars as
described,
show/hide quoted text
> one foot apart.
Why?
Let me know what you are trying to accomplish and I will advise.
richard wrote:
show/hide quoted text
> I am considering a project which would require the use of cement pillars.
> What I need to know is a rough idea of how much weight a cement pillar would
> hold.
> The pillar will be circular with a six inch diameter and assume a height of
> 10 feet.
> Knowing that a rebar, or two, would improve the weight, by how much per
> rebar?
> If you would like, consider a wall 20 feet long with pillars as described,
> one foot apart.
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Posted by richard on July 23, 2006, 11:59 pm
> Give me more info...
> Required by whom?
> Knowing that a rebar, or two, would improve the weight, by how much per
>> rebar?
> 6" x 10' at this ratio it would have to be almost all steel covered by
> concrete....to hold anything remember its not just vertical load you
> have to consider its horizontal also. At the ratio you mentioned simply
> leaning upagainst this pillar would cause me fear.
> If you would like, consider a wall 20 feet long with pillars as
> described,
>> one foot apart.
> Why?
> Let me know what you are trying to accomplish and I will advise.
Ok. Do you know what ICF is? One method I like is taking styrofoam blocks,
building up a wall, as with bricks, with each block having holes in them.
When finished stacking, concrete is poured into the cavities which then
become the main support of the frame of the house. The prefabbed blocks are
12"x12"x48".
My idea is to eliminate the stacking. Take 2 sheets of plywood 4'x8',
seperate them by 12". Add lumber between them for extra support and other
purposes. Fill the crevices with expanding foam. A little more will go into
this but what I'm after is what amount of weight each pillar will be capable
of holding.
As these houses have already been built, I was wondering how many more
layers of standard shingles could be applied outside of the typical 3 for a
standard stick house.
show/hide quoted text
> richard wrote:
>> I am considering a project which would require the use of cement pillars.
>> What I need to know is a rough idea of how much weight a cement pillar
>> would
>> hold.
>> The pillar will be circular with a six inch diameter and assume a height
>> of
>> 10 feet.
>> Knowing that a rebar, or two, would improve the weight, by how much per
>> rebar?
>> If you would like, consider a wall 20 feet long with pillars as
>> described,
>> one foot apart.
>
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Posted by Nehmo Sergheyev on July 24, 2006, 1:15 am
Just for fun, Rich, let's figure out what you're talking about. Are you
trying to determine the load bearing capacity of a wall to see if the
roof will hold more layers of shingles?
The three-layer shingle limit is not imposed because of weight. It's
there because someone thought that at some point the fasteners would
need to be too long to reach the deck. Someone decided three layers was
the point, and everybody just copied. Now it's part of the building
code that most places adopt.
But maybe your last paragraph isn't connected with the earlier ones.
Are you trying to do something, or are you just trying to figure out
something?
(||) Nehmo (||)
-----------------------------------------------------
richard wrote:
show/hide quoted text
> Ok. Do you know what ICF is? One method I like is taking styrofoam blocks,
> building up a wall, as with bricks, with each block having holes in them.
> When finished stacking, concrete is poured into the cavities which then
> become the main support of the frame of the house. The prefabbed blocks are
> 12"x12"x48".
> My idea is to eliminate the stacking. Take 2 sheets of plywood 4'x8',
> seperate them by 12". Add lumber between them for extra support and other
> purposes. Fill the crevices with expanding foam. A little more will go into
> this but what I'm after is what amount of weight each pillar will be capable
> of holding.
> As these houses have already been built, I was wondering how many more
> layers of standard shingles could be applied outside of the typical 3 for a
> standard stick house.
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Posted by CWatters on July 24, 2006, 6:16 am
> My idea is to eliminate the stacking. Take 2 sheets of plywood 4'x8',
> seperate them by 12". Add lumber between them for extra support and other
> purposes.
Stacking polystyrene blocks is going to be a lot faster than making form
work you need out of lumber.
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