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Concrete Countertop Series #4: Computer Analysis on Concrete Countertop

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Blog entry by Siegel_KenEvil posted 11-23-2010 03:16 PM 2178 reads 0 times favorited 4 comments Add to Favorites Watch
« Part 3: Waiting for the concrete Part 4 of Concrete Countertop Series series Part 5: The Big Pour »

Still killing time waiting for the concrete. One week to go.

I work for an engineering and design company. It’s not uncommon for us to virtually simulate car crashes and structure stiffness on designs before they are made. Doing a counter-top design was a walk in the park for the FEA (Finite Element Analysis) guys.

The images below show the results of simulating two 200 pound loads (people) positioned on each side of the sink. The counter-top is only supported on the outer edges. We did this with and with-out reinforcement. The stresses were so small that there was no difference. Based on the results, I could reduce the thickness but I like the chunky 1.5” look.

We have another software program that optimizes designs. We are going to ask the software to give us the lightest feasible design and reinforcement placement. I’m not too excited about this anymore because I don’t intend to change anything but it’ll be interesting.

You can get the tensile strength of typical concrete here;

http://www.engineeringtoolbox.com/concrete-properties-d_1223.html

-- Scott



4 comments so far

View bigfish_95008's profile

bigfish_95008

250 posts in 2571 days


#1 posted 11-23-2010 05:13 PM

Very interesting. In the bottom up rendering the blue lines at the ends are the cabinets/supports? The sink appears to give support across the the length, but also give you stress at the ends where the downward force is applied. Having the different forces shown in different colors is very informative. Thanks for sharing this it was informative, and started my mind working early today.

-- bigfish "I am always doing what I cannot do yet, in order to learn how to do it." Vincent Van Gogh

View Ken90712's profile

Ken90712

16957 posts in 2656 days


#2 posted 11-23-2010 05:38 PM

Very intersting to say the least. We had some great conversation about this for the last hour or so. You should here 3 different types of engineers discuss this.

-- Ken, "Everyday above ground is a good day!"

View Brad_Nailor's profile

Brad_Nailor

2539 posts in 3425 days


#3 posted 11-23-2010 08:06 PM

View bigfish_95008's profile

bigfish_95008

250 posts in 2571 days


#4 posted 11-24-2010 05:22 PM

Ken90712, next time you are having a discussion like that give me a call I’ll zip right over.

-- bigfish "I am always doing what I cannot do yet, in order to learn how to do it." Vincent Van Gogh

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