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["A Miraftab" <seaosd(--nospam--at)hotmail.com>]

Title: Message

Thanks Gail,

 

my fax number is (858-566-0627 ATT:Amir)

 

I am doing strip design in uniformley spaced direction. width of my strip is 28' and my slab thickness is 13.5".

I calculate tendon hight to be 12.5" from bot of slab at point of support.

since in my model my support is assumed to be a line and actualy i don't have beam btwn my cols I think my tendon hights should be different in the line of support.

 

what i like to do is to layout my tendon hights like this.

 

12.5" at top of col

10" (or something less than 12.5") at left and right side of my col. 

 

Does it make any sence to you?

 

and also I like to do simillar think to my additional req'd reinforcements at top and bot of slab.

 

 

Amir Miraftab
Structural Project Engineer

 

 

-----Original Message-----
From: GSKWY(--nospam--at)aol.com [mailto:GSKWY(--nospam--at)aol.com]
Sent: Sunday, May 16, 2004 12:40 PM
To: seaint(--nospam--at)seaint.org
Subject: Re: FW: 2- way post tension slab

Find someone with a copy of the PTI Design Manual (5th Edition) or go to a university library,  they should have a copy.  Somewhere towards the back of the book, there is a sample layout. Although it is nothing very complicated - there are tendons bands along the column lines in one direction and uniformly spaced tendons in the other direction.  The page in the PTI manual is just a layout - it does not show support heights.

 

If you can't find someone,  give me your fax number and I can fax you that page (although it may not come out that well.)

 

I can't say I would recommend buying the book,  it has a little bit of good information,  but it is way out of date.

 

Gail Kelley