Laserfiche WebLink
<br />. -,' <br />,'t ; <br /> <br />( 'J(~. 1. <br /> <br />..../1' <br />4 1 <br /> <br />d' <br />f:1'I'Ehresmann <br />.. Engineering Inc. <br />and Associates <br /> <br />4400 WesI3,.1 51. - Yankton, SO 57078 <br /> <br />Phone: (605) 665-7532 Fax: (605) 665-9780 <br /> <br />E-Mail: eei@byelectric.com <br />Web Addre..: http://.dibi.norlhern.edulehre.mann <br /> <br />November 23, 1999 <br /> <br />Mr. Dan Vaughan <br />Arden Towers, Inc. <br />3440 Bayside Road <br />Orono, MN 55356 <br />Ph: 612-473-3660 <br />Fax: 612-473-3880 <br /> <br />subject: 700' Rohn 80 Guyed Tower <br />Site: Arden Hills',,' MN <br />EEl JO: 27366-99 (Revision 8) <br /> <br />Dear Mr. Vaughan, <br /> <br />We have completed our revised structural stress analysis of <br />the above described tower per your request. All information <br />required to complete our structural analysiS was furnished <br />to EEl by your office. <br /> <br /> <br />~1~i~R~r.[~!i9,..e~,::~~:9~:!:~A~~ii~~i:i;i~1:~~:i::~1; <br />an9!,,,~""t!~I!.~~".\~tglc'rJ"Q~r.c9,! f !~~" 4~~~d, 10/12(98 1nd1cpH,n,g <br />t~,bJ;,'J~l-1...!~ef1J~~sare bundled and evenly distr1buted on't'he <br />. f.:Jl''"iower . J:Bces. ' <br />~l1?f~'dflkIJ\"ff~i~;~bt~:t 1~'1:~:~1:~r~~s~~: '~~d 0~;d1~::;~~ <br /> <br />For the subject tower tQ.,.lt.gr~lEl. cWi th , ,o,ur . analysis <br />considerations and results, tJf~.f'ee~;l.lneli mustbe1nstalled <br />as shown on our attached drawing 27366A1-1. <br /> <br />As stated in previous reports, at the time this tower was <br />erected it was rated for installation up to 800 ft depending <br /> <br />~~flr:~:~:r~p~;~:~h~~~ ,~~:e~i;~~~~:g hei~t~2htjaailfltitWib~: <br /> <br />l~_".tli~!i~wha't wa!._o,riginall!__designed for. <br /> <br />Therefore, it is our opinion that even though the stress <br />ratios indicate additional loading can be installed on the <br />subject tower ,we suggest all criteria outlined in this <br /> <br />e <br /> <br />- <br /> <br />- <br /> <br />Ante...... Support Stnu:llInII - Guy<d and Self-~porling 7bwe,.. and Morwpola - Sial Fabricaamo <br />Strudl/l'Gl Analy.;. . /nepection . Spocifieotione . Project Ma_eme~ . DetoiIing - P.E. ~ <br />