[TowerTalk] torque tightening querry

DXAlert DXALERT at cox.net
Fri May 26 08:01:06 EDT 2006


Naveed,

What is the average humidity in this area as well as the average solar 
flux on Friday evenings at 2133Z?

J

Naveed at Hotmail wrote:

>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.  ?
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>Regards
>NAVEED IRSHAD
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