BCSI- Code for handling, installing, restraining and bracing structural components

if a truss is over ________ a registered design professional is required

60 ft

what are the do’s of truss moving

multiple trusses must be bundled together, unload trusses as close to site as possible, lift truss up by top chords, avoid lateral bending

what are the don’ts of truss moving

don’t lift truss by banding when bundled or break banding before installation, don’t drag/push trusses on ground

what are the do’s of truss storage

provide coverage for trusses stored outside that allow airflow, put blocking under trusses stored laterally

what are the don’ts of truss storage

don’t store trusses upright, don’t store trusses on uneven ground

what is the allowance for truss installation on a bearing plate

truss installed ± 1/4” from specified location on bearing place

hip girder brace

braced to the top of a parallel wall, then the wall is braced to the floor

top of wall brace on a hip girder brace should be ____ below the top plate

12”

diagonal brace splices should overlap a minimum of ___

36”

brace splices

needed if truss is too long

vertical uplift loads

could be due to wind or gravity pulling the ground framing down

lateral loads

wind loads apply force through walls & roof of a structure

the larger the diameter of bracing nails….

the more resistance there is to lateral loads and withdrawal

toe nailing

attaching a truss directly on top of structural wood; be careful not to split the wood

in what position is a truss strongest in

vertical

what is the requirement when crane installing a truss near an airport

if using a crane within 5 miles of an airport you must contact the airport 30 days before

how many lift points do single trusses 30 ft in length need

2 near the top spaced up to ½ the truss length apart

what kidn of a spreader bar is needed for trusses 30-60 2/3 the truss length ft long

one that’s ½ to 2/3 the truss length

what kind of spreader bar is needed for trusses over 60 ft long

one that’s 2/3 to ¾ truss length

how to calculate the weight of trusses

do 15 lbs for every foot of truss length x # of trusses in bundle

until trusses are properly braced…

no loads should be placed on them

OSB may be stacked ___ high on trusses with a live load of 20 PSF

8”

before any repairs are made what must be obtained

written permission from a registered design professional

an out of plumb truss will ________ in a vertical position

lean left or right