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- To: seaint(--nospam--at)seaint.org
- Subject: Re: Greetings!
- From: NWB <nwblair(--nospam--at)sunbeach.net>
- Date: Thu, 05 Oct 2000 19:07:58 -0300
Hi Arman, With regards to the modulus of subgrade reaction, Bowles recommends this value to be 40(SF)qa in kPa and 120(SF)qa is kips/square foot; where "qa" is the soil's allowable bearing capacity in the respective units and "SF" is the safety factor calculation from SF=qu/qa. Nigel. > -----Original Message----- > From: arman s rivera [mailto:asrivera(--nospam--at)edsamail.com.ph] > Sent: Friday, October 06, 2000 12:49 AM > To: seaint(--nospam--at)seaint.org > Subject: Greetings! > > Dear fellow engineers! > > Greetings! > > I am Arman Rivera, a practicing structural engineer in the Philippines. Our > firm recently purchased the software Staad Pro 2000 and from the limited > hands-on I have had on it, this software is remarkable. However, as I've > been reading the manual that came with the software, I have many questions > regarding it. Is anybody familiar with Staad Pro 2000 that won't mind > answering questions from a novice user? > > I've been using Staad Pro 2000 to design communication towers. My first > question is, should the tower be classified as SPACE or TRUSS? What I've > done is to treat it is a space and then assign the moment releases at the > end of the diagonals and verticals only (not the main posts), so that these > members would carry only axial forces. Is this correct? > > My next question is on the support conditions. I have modeled the mat > foundation using finite elements in Staad Pro 2000. I have defined the > joint supports as ELASTIC MAT by specifying the modulus of subgrade > reactions (kv). Given the allowable soil bearing capacity, how is the > modulus of subgrade reaction computed? > > I have many more questions regarding this software, any help you could give > me would be greatly appreciated. > > Thank you very much. > > Regards, > Arman S. Rivera > > _ >
- RE: Greetings!
- From: Connor, John A NWK
- RE: Greetings!
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