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ETABS 16 Strip Design

 
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George.Philip
SEFI Member
SEFI Member


Joined: 13 Mar 2017
Posts: 4
Location: Abu Dhabi

PostPosted: Tue Nov 14, 2017 1:30 pm    Post subject: ETABS 16 Strip Design Reply with quote

I have been designing a flat slab using ETABS. I have drawn strips and when comparing the strip moments and the strip based design, the reinforcement area obtained are much larger than it should be. Is there anyone faced the same problem? Could anyone clarify this?
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arunangshu
SEFI Regulars
SEFI Regulars


Joined: 18 Sep 2009
Posts: 39
Location: New Delhi

PostPosted: Tue Nov 14, 2017 10:14 pm    Post subject: Reply with quote

Dear George,<o></o>


A similar discussion going on in LinkedIn (https://www.linkedin.com/groups/2983130/2983130-6330328396933009409).<o></o>


I think the first point would be comparing the design forces and then investigating the differences (in design output) rather than directly jumping into conclusions.<o></o>



For a better comparison, hinge the columns at slab junction to prevent moment transfer and then check the punching shear ratios; and before performing design make sure that the design parameters are exactly same. Also make sure that, your models are free from 'stiffness modifiers'.<o></o>



Above exercise will help to converge the issue and we can have further discussion.<o></o>



Cheers!<o></o>

Arun
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