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RE: Concrete Spring Constant for Base Plate Modeling
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- Subject: RE: Concrete Spring Constant for Base Plate Modeling
- From: Harold Sprague <spraguehope(--nospam--at)hotmail.com>
- Date: Sat, 31 Jan 2009 23:25:14 +0000
John, I would suggest the procedure in Omer Blodgett's "Design of Welded Structures". It accounts for the stretch in the anchor rods and the strain in the concrete. As with all of his work, it is very logically presented and well thought. It is easily presented in a MathCAD template. Regards, Harold Sprague Date: Fri, 30 Jan 2009 11:22:07 -0800 Subject: Re: Concrete Spring Constant for Base Plate Modeling From: jeongidea(--nospam--at)gmail.com To: seaint(--nospam--at)seaint.org Hmm, just pick the number. However, the question is what is the reasonable number. Depending on spring constant, it will change tensions on the anchor bolts. If somebody starts with no idea of bolts' tensions, they may come up with very small number if they use very flexible springs. Anyway, the reason that I am modeling the base plate instead of using AISC design guide is my base plate has re-entrant corner inside and have both direction lateral loads (of course both direction shears and moments) at the same time. I want to know how much stress concentrations at the re-entrant corners are and I don't think AISC design guide covers this situation. Thank you so much. John On Fri, Jan 30, 2009 at 10:42 AM, David Fisher <dfisher(--nospam--at)fpse.com> wrote:
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- Concrete Spring Constant for Base Plate Modeling
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- RE: Concrete Spring Constant for Base Plate Modeling
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- RE: Concrete Spring Constant for Base Plate Modeling
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