If you have that much specific data, what does the manufacturer or engineer
that designed it say??
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> -----Original Message-----
> From: towertalk-bounces@contesting.com [mailto:towertalk-
> bounces@contesting.com] On Behalf Of Naveed at Hotmail
> Sent: Friday, May 26, 2006 07:32
> To: towertalk@contesting.com
> Subject: [TowerTalk] torque tightening querry
>
> What should be torque tightening for the bolts 0f 20mm and 16mm ASTM A36 ,
> ISO GRADE 5.8 bolts , of a lattice structure which is 60m high and has to
> resist a wind speed of 150kph , lying in seismic zone IV , dead load in
> addition to self weight is the feeder cables and ladder wieghing 0.22kn/m
> , 8 antenas weighing 23kg each, 4 microwaves wieghing 12kg each, having
> maximum allowable twist and tilt to be +-0.45 deg.Can you please tell me
> the source atleast. ?
>
>
>
> Regards
> NAVEED IRSHAD
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