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SAP2000 Material Definition?? Fe415

 
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PujanG
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Joined: 30 Mar 2012
Posts: 11

PostPosted: Fri Mar 30, 2012 11:51 am    Post subject: SAP2000 Material Definition?? Fe415 Reply with quote

Hi,
I've been trying to learn SAP2000 on my own for some time now.
All the material on the internet, which I could lay my hand on, taught me fair enough  modeling, loading & designing RCC structures.

But as i set out for a real design, i got stuck at the very beginning.
"What is the material property?"
As a common practice, we use Fe415 bars. But i don't know how to define it in SAP2000.

Where can i find these values for Fe415 bars?

Minimum yield stress=?
minimum tensile stress?
effective yield stress=?
effective tensile stress=?

poission's ratio = 0.25 to 0.33 ( what should i adopt to be in safer side?)

Any help is highly appreciated.
A sap2000 model from a real building project will be of great help
Thank you!
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rajancivildesign@gmail.co
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Joined: 26 Jan 2011
Posts: 555

PostPosted: Sat Mar 31, 2012 3:44 am    Post subject: Material Property in SAP 2000 Reply with quote

In SAP 2000, we have to give material property based on unit selected as given below:
Define material property> modify/show material
w=wt/unit volumn of concrete=25KN/m3
m= mass/unit volume=w/g=25/9.81=2.5
E= 5000 sqrt fck =5000 sqrt 25=25000 n/mm2
E=2G(1+1/m)
G=E/2(1=u)
u=poisson ratio varies from 0.2 to 0.3.
A sample input for frame analysis for pushover analysis is given for guidance.
V.M.RAJAN.



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PujanG
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Joined: 30 Mar 2012
Posts: 11

PostPosted: Mon Apr 02, 2012 4:12 pm    Post subject: Thank u Reply with quote

Sir,
Thank you for your response.

I was looking forward to receiving material definition for fe415 bars. You happened to provide definition for concrete. Nevertheless it was useful.
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noentry
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Joined: 28 Oct 2011
Posts: 18

PostPosted: Sat Jun 15, 2013 7:07 pm    Post subject: ref. only Reply with quote

Mechanical Properties of Steel Bars
Panchakanya STEEL



CharacteristicsNS 191 Requirement for grade - fe415 (CTD)NS 191 Requirement for grade - fe 500 (TMT)
0.2% Proof Stress Yield/Stress (N/mm˛)415 min.500 min.
Ultimate Tensile Strength (N/mm˛)485 (10% more than actual 0.2% proof Yield Stress)545 (8% more than the actual Yield Stress)
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md zeeshan ali
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Joined: 12 Nov 2013
Posts: 36

PostPosted: Thu Nov 14, 2013 2:35 pm    Post subject: Reply with quote

newer version of sap2000 like v15.1.0 and 16.0.0 has all the indian steel rebar and concrete property defined.
also you can see all the value. so you can see it from there.
if want the value from any of the material i can send you from latest version of sap2000

md zeeshan ali
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