i am currently in charge of erecting truss for a workshop. the clear
span is 45 meters. the truss , itself reached our site in parts, and
we had to do some welding before hoisting them up. these ones seemed
not to be straight - and in fact they were not straight - when we put
them all up. but placing the purlins and other joineries, now they are
having a better alignment.
but my concern is will this be ok, or the truss will become crooked
and cause problems.
also as far as trusses are concerned (of any longer span, say more
than 20 meters) what about their life in general. do they fail, and if
they do so in what manner?
here in india the temp is between around 47 to 49 deg cel during the
day and when it drops low it even goes to eight or nine deg cel during