Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Peter Frederick via Mercedes 
Channels for post-tensioning cast slabs.


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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Mitch Haley via Mercedes 
Oops, they're having trouble taking the top off the crane.
While they're working on that, we'll go ahead and take the pins out of the 
middle of the crane to save time...
https://www.youtube.com/watch?v=te547Ek0yJo
https://www.youtube.com/watch?v=2AilIZ6FR8w

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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Mitch Haley via Mercedes 


> On October 31, 2019 at 4:51 PM Randy Bennell via Mercedes 
>  wrote:
> 
> 
> https://www.youtube.com/watch?v=hBjntrebxj8
> 
> An explanation of the design and failure.

A different sort of failure:
https://www.youtube.com/watch?v=eLS-gPu656M

Analysis:
https://www.youtube.com/watch?v=LJevke4_i5Y

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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Curley McLain via Mercedes 

"We the incompetent, led by the blind..."
Plenty of blame to slather around.

Randy Bennell via Mercedes wrote on 10/31/19 3:47 PM:

Design failure mostly.


"An examination carried out by theFederal Highway Administration 
discovered 
faults in the design of the bridge, which overestimated the strength 
of the bridge in the region which failed, and underestimated the load 
it would be expected to carry.^[4] 
 
TheNational Transportation Safety Board 
issued 
a "News Release"^[5] 
 
which said,"that load and capacity calculation errors made by FIGG 
Bridge Engineers, Inc., are the probable cause of the fatal ... bridge 
collapse in Miami ..." The same day the NTSB released a 
"synopsis"^[note 1] 
 
of its final report, which stated


   ... that the probable cause of the Florida International University
   (FIU) pedestrian bridge collapse was the load and capacity
   calculation errors made by FIGG Bridge Engineers, Inc., (FIGG) in
   its design of the main span truss member 11/12 nodal region and
   connection to the bridge deck. Contributing to the collapse was the
   inadequate peer review performed by Louis Berger, which failed to
   detect the calculation errors in the bridge design. Further
   contributing to the collapse was the failure of the FIGG engineer of
   record to identify the significance of the structural cracking
   observed in this node before the collapse and to obtain an
   independent peer review of the remedial plan to address the
   cracking. Contributing to the severity of the collapse outcome was
   the failure of MCM; FIGG; Bolton, Perez and Associates Consulting
   Engineers; FIU; and the Florida Department of Transportation to
   cease bridge work when the structure cracking reached unacceptable
   levels and to take appropriate action to close SW 8th Street as
   necessary to protect public safety.^[6]
 




/The New York Times 
/concluded that "the 
chief probable cause" was "the design by FIGG Bridge Engineers", but 
that "every company, institution and agency involved in the project 
was partly to blame for the bridge collapse"



"As the post-tensioning operation by the VSL company was being carried 
out on bridge diagonal member support #11, the bottom joint (which 
contains the anchor nut for the post-tensioning rod) apparently failed 
explosively, causing the bridge to collapse. Currently, it remains 
unknown why the joint may have failed, although post-tensioning 
remains a likely contributor.^"






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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Randy Bennell via Mercedes 

https://www.youtube.com/watch?v=hBjntrebxj8

An explanation of the design and failure.

Randy

On 31/10/2019 3:42 PM, G Mann via Mercedes wrote:

I believe I recall the postmortem on the event found a combination of lack
of spec post tension and failure to allow proper cure time for the
concrete.
Do not recall for sure, but my memory says, concrete was also sub spec for
strength in the mix.
Rush job, with failure on film as I recall..

On Thu, Oct 31, 2019 at 1:29 PM MG via Mercedes 
wrote:


I believe it was incorrect tension.

OK Don via Mercedes wrote:

The presence, or lack of them caused the collapse?

On Thu, Oct 31, 2019 at 2:01 PM Randy Bennell via Mercedes <
mercedes@okiebenz.com> wrote:


Post tensioning cables.

-D

Is that not what caused the problem with that pedestrian bridge to some
university down your way, that collapsed?

Randy




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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Allan Streib via Mercedes 
It collapsed during a post-tensioning operation, but the cause was an
error by the engineering firm that designed it.


MG via Mercedes  writes:

> I believe it was incorrect tension.
>
> OK Don via Mercedes wrote:
>> The presence, or lack of them caused the collapse?
>> 
>> On Thu, Oct 31, 2019 at 2:01 PM Randy Bennell via Mercedes <
>> mercedes@okiebenz.com> wrote:
>> 
 Post tensioning cables.

 -D
>>> Is that not what caused the problem with that pedestrian bridge to some
>>> university down your way, that collapsed?
>>>
>>> Randy
>>>
>> 
>> 
>
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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Randy Bennell via Mercedes 

Design failure mostly.


"An examination carried out by theFederal Highway Administration 
discovered 
faults in the design of the bridge, which overestimated the strength of 
the bridge in the region which failed, and underestimated the load it 
would be expected to carry.^[4] 
 
TheNational Transportation Safety Board 
issued 
a "News Release"^[5] 
 
which said,"that load and capacity calculation errors made by FIGG 
Bridge Engineers, Inc., are the probable cause of the fatal ... bridge 
collapse in Miami ..." The same day the NTSB released a "synopsis"^[note 
1] 
 
of its final report, which stated


   ... that the probable cause of the Florida International University
   (FIU) pedestrian bridge collapse was the load and capacity
   calculation errors made by FIGG Bridge Engineers, Inc., (FIGG) in
   its design of the main span truss member 11/12 nodal region and
   connection to the bridge deck. Contributing to the collapse was the
   inadequate peer review performed by Louis Berger, which failed to
   detect the calculation errors in the bridge design. Further
   contributing to the collapse was the failure of the FIGG engineer of
   record to identify the significance of the structural cracking
   observed in this node before the collapse and to obtain an
   independent peer review of the remedial plan to address the
   cracking. Contributing to the severity of the collapse outcome was
   the failure of MCM; FIGG; Bolton, Perez and Associates Consulting
   Engineers; FIU; and the Florida Department of Transportation to
   cease bridge work when the structure cracking reached unacceptable
   levels and to take appropriate action to close SW 8th Street as
   necessary to protect public safety.^[6]
   



/The New York Times 
/concluded that "the 
chief probable cause" was "the design by FIGG Bridge Engineers", but 
that "every company, institution and agency involved in the project was 
partly to blame for the bridge collapse"



"As the post-tensioning operation by the VSL company was being carried 
out on bridge diagonal member support #11, the bottom joint (which 
contains the anchor nut for the post-tensioning rod) apparently failed 
explosively, causing the bridge to collapse. Currently, it remains 
unknown why the joint may have failed, although post-tensioning remains 
a likely contributor.^"





On 31/10/2019 3:42 PM, G Mann via Mercedes wrote:

I believe I recall the postmortem on the event found a combination of lack
of spec post tension and failure to allow proper cure time for the
concrete.
Do not recall for sure, but my memory says, concrete was also sub spec for
strength in the mix.
Rush job, with failure on film as I recall..

On Thu, Oct 31, 2019 at 1:29 PM MG via Mercedes 
wrote:


I believe it was incorrect tension.

OK Don via Mercedes wrote:

The presence, or lack of them caused the collapse?

On Thu, Oct 31, 2019 at 2:01 PM Randy Bennell via Mercedes <
mercedes@okiebenz.com> wrote:


Post tensioning cables.

-D

Is that not what caused the problem with that pedestrian bridge to some
university down your way, that collapsed?

Randy




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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread G Mann via Mercedes 
I believe I recall the postmortem on the event found a combination of lack
of spec post tension and failure to allow proper cure time for the
concrete.
Do not recall for sure, but my memory says, concrete was also sub spec for
strength in the mix.
Rush job, with failure on film as I recall..

On Thu, Oct 31, 2019 at 1:29 PM MG via Mercedes 
wrote:

> I believe it was incorrect tension.
>
> OK Don via Mercedes wrote:
> > The presence, or lack of them caused the collapse?
> >
> > On Thu, Oct 31, 2019 at 2:01 PM Randy Bennell via Mercedes <
> > mercedes@okiebenz.com> wrote:
> >
> >>> Post tensioning cables.
> >>>
> >>> -D
> >> Is that not what caused the problem with that pedestrian bridge to some
> >> university down your way, that collapsed?
> >>
> >> Randy
> >>
> >
> >
>
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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread MG via Mercedes 

I believe it was incorrect tension.

OK Don via Mercedes wrote:

The presence, or lack of them caused the collapse?

On Thu, Oct 31, 2019 at 2:01 PM Randy Bennell via Mercedes <
mercedes@okiebenz.com> wrote:


Post tensioning cables.

-D

Is that not what caused the problem with that pedestrian bridge to some
university down your way, that collapsed?

Randy






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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread OK Don via Mercedes 
The presence, or lack of them caused the collapse?

On Thu, Oct 31, 2019 at 2:01 PM Randy Bennell via Mercedes <
mercedes@okiebenz.com> wrote:

>
> > Post tensioning cables.
> >
> > -D
>
> Is that not what caused the problem with that pedestrian bridge to some
> university down your way, that collapsed?
>
> Randy
>


-- 
OK Don

"Whenever you find yourself on the side of the majority, it is time to
pause and reflect." Mark Twain

"There are three kinds of men: The ones that learns by reading. The few who
learn by observation. The rest of them have to pee on the electric fence
for themselves."

WILL ROGERS, *The Manly Wisdom of Will Rogers*
2013 F150, 18 mpg
2017 Subaru Legacy, 30 mpg
1957 C182A, 12 mpg - but at 150 mph!
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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Craig via Mercedes 
On Thu, 31 Oct 2019 14:00:29 -0500 Randy Bennell via Mercedes
 wrote:

> On 31/10/2019 1:48 PM, Dan--- via Mercedes wrote:
> > Figured it out after our afternoon walk:
> >
> > Post tensioning cables.
> >
> > -D
> 
> Is that not what caused the problem with that pedestrian bridge to some 
> university down your way, that collapsed?

Yes, IIRC. Post tensioning, however, has been used for many years with
very successful results.


Craig

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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Curt Raymond via Mercedes 
 Ahh, you beat me to it...
-Curt

On Thursday, October 31, 2019, 3:01:23 PM EDT, Randy Bennell via Mercedes 
 wrote:  
 
 On 31/10/2019 1:48 PM, Dan--- via Mercedes wrote:
> Figured it out after our afternoon walk:
>
> Post tensioning cables.
>
> -D

Is that not what caused the problem with that pedestrian bridge to some 
university down your way, that collapsed?

Randy


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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Randy Bennell via Mercedes 

On 31/10/2019 1:48 PM, Dan--- via Mercedes wrote:

Figured it out after our afternoon walk:

Post tensioning cables.

-D


Is that not what caused the problem with that pedestrian bridge to some 
university down your way, that collapsed?


Randy


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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Dan--- via Mercedes 
Figured it out after our afternoon walk:

Post tensioning cables.

-D

> On Oct 31, 2019, at 1:13 PM, Dan--- via Mercedes  
> wrote:
> 
> They’re now two floors up and there’s no sidewalk on that side of the street, 
> so we can’t ask. Otherwise we would.
> 
> Not the top floor - second floor of 18, I believe.
> 
> -D
> 
>> On Oct 31, 2019, at 12:25 PM, MG via Mercedes  wrote:
>> 
>> If it's the top floor of the parking deck then it might be for solar hot 
>> water heating.
>> 
>> MG
>> 
>> Dan--- via Mercedes wrote:
>>> Nope. If you closely, you can see the conduit (gray) run across the deck as 
>>> well.
>>> Note that it’s spaced pretty evenly in one direction, but the ones that 
>>> cross at 90 degrees are grouped closely together.
>>> It’s a mystery to us...
>>> -D
 On Oct 31, 2019, at 10:57 AM, Floyd Thursby via Mercedes 
  wrote:
 
 Conduit for cables?
 
 --FT
 
> On 10/31/19 10:48 AM, Dan--- via Mercedes wrote:
> Here’s a better picture now that it’s out of the shade.
> 
> 
> 
>> On Oct 31, 2019, at 10:38 AM, Dan--- via Mercedes 
>>  wrote:
>> 
>> Nope. If you look closely, it’s not a loop or interconnected. The tubing 
>> is laid out in straight lines and in a grid arrangement, but it just 
>> ends up at the edge of the slab.
>> 
>> No need for floor heating in Florida. And the deck you see in the 
>> picture is for a parking garage.
>> 
>> -D
>> 
>>> On Oct 31, 2019, at 10:23 AM, Floyd Thursby via Mercedes 
>>>  wrote:
>>> 
>>> Probably heating tubes
>>> 
>>> --FT
>>> 
 On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:
 We’re puzzled by the red tubing that's being laid in the concrete 
 floors of a high rise building being built in the next block. It’s 
 clearly flexible, doesn’t appear to be interconnected as if it would 
 be passing liquids or gasses, so what is it?
 
 -D
 
 
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>>> -- 
>>> --FT
>>> 
>>> ___
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>>> 
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>> 
 -- 
 --FT
 
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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Dan--- via Mercedes 
They’re now two floors up and there’s no sidewalk on that side of the street, 
so we can’t ask. Otherwise we would.

Not the top floor - second floor of 18, I believe.

-D

> On Oct 31, 2019, at 12:25 PM, MG via Mercedes  wrote:
> 
> If it's the top floor of the parking deck then it might be for solar hot 
> water heating.
> 
> MG
> 
> Dan--- via Mercedes wrote:
>> Nope. If you closely, you can see the conduit (gray) run across the deck as 
>> well.
>> Note that it’s spaced pretty evenly in one direction, but the ones that 
>> cross at 90 degrees are grouped closely together.
>> It’s a mystery to us...
>> -D
>>> On Oct 31, 2019, at 10:57 AM, Floyd Thursby via Mercedes 
>>>  wrote:
>>> 
>>> Conduit for cables?
>>> 
>>> --FT
>>> 
 On 10/31/19 10:48 AM, Dan--- via Mercedes wrote:
 Here’s a better picture now that it’s out of the shade.
 
 
 
> On Oct 31, 2019, at 10:38 AM, Dan--- via Mercedes  
> wrote:
> 
> Nope. If you look closely, it’s not a loop or interconnected. The tubing 
> is laid out in straight lines and in a grid arrangement, but it just ends 
> up at the edge of the slab.
> 
> No need for floor heating in Florida. And the deck you see in the picture 
> is for a parking garage.
> 
> -D
> 
>> On Oct 31, 2019, at 10:23 AM, Floyd Thursby via Mercedes 
>>  wrote:
>> 
>> Probably heating tubes
>> 
>> --FT
>> 
>>> On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:
>>> We’re puzzled by the red tubing that's being laid in the concrete 
>>> floors of a high rise building being built in the next block. It’s 
>>> clearly flexible, doesn’t appear to be interconnected as if it would be 
>>> passing liquids or gasses, so what is it?
>>> 
>>> -D
>>> 
>>> 
>>> ___
>>> http://www.okiebenz.com
>>> 
>>> To search list archives http://www.okiebenz.com/archive/
>>> 
>>> To Unsubscribe or change delivery options go to:
>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>> 
>> -- 
>> --FT
>> 
>> ___
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>> 
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> 
>>> -- 
>>> --FT
>>> 
>>> ___
>>> http://www.okiebenz.com
>>> 
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>>> 
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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread MG via Mercedes 
If it's the top floor of the parking deck then it 
might be for solar hot water heating.


MG

Dan--- via Mercedes wrote:

Nope. If you closely, you can see the conduit (gray) run across the deck as 
well.

Note that it’s spaced pretty evenly in one direction, but the ones that cross 
at 90 degrees are grouped closely together.

It’s a mystery to us...

-D


On Oct 31, 2019, at 10:57 AM, Floyd Thursby via Mercedes 
 wrote:

Conduit for cables?

--FT


On 10/31/19 10:48 AM, Dan--- via Mercedes wrote:
Here’s a better picture now that it’s out of the shade.




On Oct 31, 2019, at 10:38 AM, Dan--- via Mercedes  wrote:

Nope. If you look closely, it’s not a loop or interconnected. The tubing is 
laid out in straight lines and in a grid arrangement, but it just ends up at 
the edge of the slab.

No need for floor heating in Florida. And the deck you see in the picture is 
for a parking garage.

-D


On Oct 31, 2019, at 10:23 AM, Floyd Thursby via Mercedes 
 wrote:

Probably heating tubes

--FT


On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:
We’re puzzled by the red tubing that's being laid in the concrete floors of a 
high rise building being built in the next block. It’s clearly flexible, 
doesn’t appear to be interconnected as if it would be passing liquids or 
gasses, so what is it?

-D


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--
--FT

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--
--FT

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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Allan Streib via Mercedes 
I'm no expert but in the all the construction I've seen, all plumbing
for sprinklers, domestic water, and sewer is installed below the slab.

My thought was that it's for cooling the poured concrete to get a
slower/stronger cure.

I agree -- ask someone on the site.

Allan

Floyd Thursby via Mercedes  writes:

> What is below the deck?  Might be for sprinklers?
>
> Go down and ask them!
>
> --FT
>
> On 10/31/19 11:00 AM, Dan--- via Mercedes wrote:
>> Nope. If you closely, you can see the conduit (gray) run across the deck as 
>> well.
>>
>> Note that it’s spaced pretty evenly in one direction, but the ones that 
>> cross at 90 degrees are grouped closely together.
>>
>> It’s a mystery to us...
>>
>> -D
>>
>>> On Oct 31, 2019, at 10:57 AM, Floyd Thursby via Mercedes 
>>>  wrote:
>>>
>>> Conduit for cables?
>>>
>>> --FT
>>>
 On 10/31/19 10:48 AM, Dan--- via Mercedes wrote:
 Here’s a better picture now that it’s out of the shade.



> On Oct 31, 2019, at 10:38 AM, Dan--- via Mercedes  
> wrote:
>
> Nope. If you look closely, it’s not a loop or interconnected. The tubing 
> is laid out in straight lines and in a grid arrangement, but it just ends 
> up at the edge of the slab.
>
> No need for floor heating in Florida. And the deck you see in the picture 
> is for a parking garage.
>
> -D
>
>> On Oct 31, 2019, at 10:23 AM, Floyd Thursby via Mercedes 
>>  wrote:
>>
>> Probably heating tubes
>>
>> --FT
>>
>>> On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:
>>> We’re puzzled by the red tubing that's being laid in the concrete 
>>> floors of a high rise building being built in the next block. It’s 
>>> clearly flexible, doesn’t appear to be interconnected as if it would be 
>>> passing liquids or gasses, so what is it?
>>>
>>> -D

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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Floyd Thursby via Mercedes 

What is below the deck?  Might be for sprinklers?

Go down and ask them!

--FT

On 10/31/19 11:00 AM, Dan--- via Mercedes wrote:

Nope. If you closely, you can see the conduit (gray) run across the deck as 
well.

Note that it’s spaced pretty evenly in one direction, but the ones that cross 
at 90 degrees are grouped closely together.

It’s a mystery to us...

-D


On Oct 31, 2019, at 10:57 AM, Floyd Thursby via Mercedes 
 wrote:

Conduit for cables?

--FT


On 10/31/19 10:48 AM, Dan--- via Mercedes wrote:
Here’s a better picture now that it’s out of the shade.




On Oct 31, 2019, at 10:38 AM, Dan--- via Mercedes  wrote:

Nope. If you look closely, it’s not a loop or interconnected. The tubing is 
laid out in straight lines and in a grid arrangement, but it just ends up at 
the edge of the slab.

No need for floor heating in Florida. And the deck you see in the picture is 
for a parking garage.

-D


On Oct 31, 2019, at 10:23 AM, Floyd Thursby via Mercedes 
 wrote:

Probably heating tubes

--FT


On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:
We’re puzzled by the red tubing that's being laid in the concrete floors of a 
high rise building being built in the next block. It’s clearly flexible, 
doesn’t appear to be interconnected as if it would be passing liquids or 
gasses, so what is it?

-D


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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Dan--- via Mercedes 
Nope. If you closely, you can see the conduit (gray) run across the deck as 
well.

Note that it’s spaced pretty evenly in one direction, but the ones that cross 
at 90 degrees are grouped closely together.

It’s a mystery to us...

-D

> On Oct 31, 2019, at 10:57 AM, Floyd Thursby via Mercedes 
>  wrote:
> 
> Conduit for cables?
> 
> --FT
> 
>> On 10/31/19 10:48 AM, Dan--- via Mercedes wrote:
>> Here’s a better picture now that it’s out of the shade.
>> 
>> 
>> 
>>> On Oct 31, 2019, at 10:38 AM, Dan--- via Mercedes  
>>> wrote:
>>> 
>>> Nope. If you look closely, it’s not a loop or interconnected. The tubing is 
>>> laid out in straight lines and in a grid arrangement, but it just ends up 
>>> at the edge of the slab.
>>> 
>>> No need for floor heating in Florida. And the deck you see in the picture 
>>> is for a parking garage.
>>> 
>>> -D
>>> 
 On Oct 31, 2019, at 10:23 AM, Floyd Thursby via Mercedes 
  wrote:
 
 Probably heating tubes
 
 --FT
 
> On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:
> We’re puzzled by the red tubing that's being laid in the concrete floors 
> of a high rise building being built in the next block. It’s clearly 
> flexible, doesn’t appear to be interconnected as if it would be passing 
> liquids or gasses, so what is it?
> 
> -D
> 
> 
> ___
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> 
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> 
> To Unsubscribe or change delivery options go to:
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> 
 -- 
 --FT
 
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>>> 
>>> ___
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> -- 
> --FT
> 
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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Floyd Thursby via Mercedes 

Conduit for cables?

--FT

On 10/31/19 10:48 AM, Dan--- via Mercedes wrote:

Here’s a better picture now that it’s out of the shade.




On Oct 31, 2019, at 10:38 AM, Dan--- via Mercedes  wrote:

Nope. If you look closely, it’s not a loop or interconnected. The tubing is 
laid out in straight lines and in a grid arrangement, but it just ends up at 
the edge of the slab.

No need for floor heating in Florida. And the deck you see in the picture is 
for a parking garage.

-D


On Oct 31, 2019, at 10:23 AM, Floyd Thursby via Mercedes 
 wrote:

Probably heating tubes

--FT


On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:
We’re puzzled by the red tubing that's being laid in the concrete floors of a 
high rise building being built in the next block. It’s clearly flexible, 
doesn’t appear to be interconnected as if it would be passing liquids or 
gasses, so what is it?

-D


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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Curt Raymond via Mercedes 
 Cooling? Run the AC into the floor of the parking structure?
-Curt

On Thursday, October 31, 2019, 10:44:55 AM EDT, Curley McLain via Mercedes 
 wrote:  
 
 They could be doing an exposed manifold  at the ends.

Dan--- via Mercedes wrote on 10/31/19 9:38 AM:
> Nope. If you look closely, it’s not a loop or interconnected. The tubing is 
> laid out in straight lines and in a grid arrangement, but it just ends up at 
> the edge of the slab.
>
> No need for floor heating in Florida. And the deck you see in the picture is 
> for a parking garage.
>
> -D
>
>> On Oct 31, 2019, at 10:23 AM, Floyd Thursby via Mercedes 
>>  wrote:
>>
>> Probably heating tubes
>>
>> --FT
>>
>>> On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:
>>> We’re puzzled by the red tubing that's being laid in the concrete floors of 
>>> a high rise building being built in the next block. It’s clearly flexible, 
>>> doesn’t appear to be interconnected as if it would be passing liquids or 
>>> gasses, so what is it?
>>>
>>> -D
>>>
>>>
>>> ___
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>>>
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>>>
>>> To Unsubscribe or change delivery options go to:
>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>>
>> -- 
>> --FT
>>
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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Curley McLain via Mercedes 

They could be doing an exposed manifold  at the ends.

Dan--- via Mercedes wrote on 10/31/19 9:38 AM:

Nope. If you look closely, it’s not a loop or interconnected. The tubing is 
laid out in straight lines and in a grid arrangement, but it just ends up at 
the edge of the slab.

No need for floor heating in Florida. And the deck you see in the picture is 
for a parking garage.

-D


On Oct 31, 2019, at 10:23 AM, Floyd Thursby via Mercedes 
 wrote:

Probably heating tubes

--FT


On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:
We’re puzzled by the red tubing that's being laid in the concrete floors of a 
high rise building being built in the next block. It’s clearly flexible, 
doesn’t appear to be interconnected as if it would be passing liquids or 
gasses, so what is it?

-D


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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Dan--- via Mercedes 
Nope. If you look closely, it’s not a loop or interconnected. The tubing is 
laid out in straight lines and in a grid arrangement, but it just ends up at 
the edge of the slab.

No need for floor heating in Florida. And the deck you see in the picture is 
for a parking garage.

-D

> On Oct 31, 2019, at 10:23 AM, Floyd Thursby via Mercedes 
>  wrote:
> 
> Probably heating tubes
> 
> --FT
> 
>> On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:
>> We’re puzzled by the red tubing that's being laid in the concrete floors of 
>> a high rise building being built in the next block. It’s clearly flexible, 
>> doesn’t appear to be interconnected as if it would be passing liquids or 
>> gasses, so what is it?
>> 
>> -D
>> 
>> 
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>> 
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>> 
> -- 
> --FT
> 
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Re: [MBZ] OT - Concrete Slab Construction

2019-10-31 Thread Floyd Thursby via Mercedes 

Probably heating tubes

--FT

On 10/31/19 10:18 AM, Dan--- via Mercedes wrote:

We’re puzzled by the red tubing that's being laid in the concrete floors of a 
high rise building being built in the next block. It’s clearly flexible, 
doesn’t appear to be interconnected as if it would be passing liquids or 
gasses, so what is it?

-D


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