If it's over 2 bays you don't need plans and yes double plans between ties as you say every 4 lifts. I think the idea is to box everything off between the ties, double sways do that but singles don't hence the plans.
sway bracing
- Thread starter joebag
- Start date
joebag
Well-known member
you know what scaff1989 your one of lifes gudduns,never failed to make me laugh my bollax off 
Alan Reade
Well-known member
Sway Brace is a bag of mixed nuts,
1) 2 bays 1 lift can be stronger BUT is a design job as it is outside TG20
2) 2 Bays 2 Lifts is as per TG20 no PB
3) 1 Bay 1 lift + PB is also within TG20.
Option one, (whilst easier to climb) involves more T&F resulting in more transport, Labour and time thus less money.
Whilst I seldom say this the stronger brace may be better in capacity but over kill in relationship to its required strength, hence best used only when designed.
With regards the positioning of sways, my own preferance would be to connect them using doubles nested side by side directley to a structural transom. In the real world I would butt them as close as possible to the node point using swiv's
1) 2 bays 1 lift can be stronger BUT is a design job as it is outside TG20
2) 2 Bays 2 Lifts is as per TG20 no PB
3) 1 Bay 1 lift + PB is also within TG20.
Option one, (whilst easier to climb) involves more T&F resulting in more transport, Labour and time thus less money.
Whilst I seldom say this the stronger brace may be better in capacity but over kill in relationship to its required strength, hence best used only when designed.
With regards the positioning of sways, my own preferance would be to connect them using doubles nested side by side directley to a structural transom. In the real world I would butt them as close as possible to the node point using swiv's