1. QUINN TRUSS OPEN WEB JOIST SYSTEM TECHNICAL DETAILS

2. Finished beam depths

3. Web dimensions

4. PSD01 - L70 Hanger Simpson L70 angles as specified by design Simpson LBV hangerBottom member of posi beam to be notched over bottom flange of hanger

5. PSD02 - Bottom chord fixing to timber frame 47x97 Top chord restraint fixed between beams

6. PSD03 - Top chord fixing to timber frame 47x97 Packing pieces Ring beam (size to suit) 47x47 Continuous plasterboard noggin 6 mm gap

7. PSD04 - Masonry hanger detail Minimum bearing determined by design (choose correct hanger for load, bearing width and coursework level of hanger bearing flange). 47x97 Top chord restraint fixed between beams

8. PSD05 - Masonry hanger detail (with continuous ledger) Minimum bearing determined by design (choose correct hanger for load, bearing width and coursework level of bearing flange Continuous 47x97 ledger.Top chord of beam fixed to ledger

9. PSD06 - Bottom chord built into masonry Blockwork to continue between beams to provide restraint

10. PSD07 - Top chord built into masonry Continuous 47x97 ledger fixed to wall Max 6mm gap

11. PSD08 - Top chord fixing to steel 47x97 Noggins between top chords Wallplate fixed to top of steel Timber pack fixed to beam (size ti suit) Max 6mm gap

12. PSD09 - Internal bearing on bottom chord 47x97 top chord restraint fixed between beams

13. PSD10 - Non load bearing partition parallel to beams Wall panels skew nailed through onto noggins with a min of 2 no 3.35 dia galvanised wire nails (length to suit). Simpson Z35N clips 38x97 C16 (min) noggins at max 600mm centres

14. PSD11 - Maximum duct sizes INSERT LARGE SERVICES THROUGH JOISTS BEFORE FIXING JOISTS. IT MAY NOT BE POSSIBLE AFTER JOISTS HAVE BEEN FIXED DOWN.

15. PSD12 - Edge closure detail 35mm Prefabricated edge closure pre faced with plywood with 20mm lap at the top edge Edge closure to be supplied to site as 4.8m long lengths and cut on site as required

16. PSD13 - Wide stair opening Bottom member of posi to be notched over bottom flange of hanger Simpson L70 angles as specified by design Simpson LBV hangers

17. PSD14 - Narrow stair opening Trimmer to be notched over bottom flange of hanger Simpson L70 angles as specified by design Simpson LBV hanger Trimmer depth to be adjusted on site to suit

18. PSD15 - Narrow stair opening Trimmer to be notched over bottom flange of hanger Simpson L70 angles as specified by design Simpson LBV hanger Trimmer depth to be adjusted on site to suit

19. PSD16 - Narrow stair opening Simpson L70 angles as specified by design Beam (depth to suit) Slotted through girders Packing piece to pick up ceiling

20. PSD17 - Strongback Detail INSTERT STRONGBACK THROUGH JOISTS BEFORE FIXING JOISTS. IT CANNOT BE INSTALLED AFTER JOISTS HAVE BEEN FIXED DOWN Fix at a maximum of 4.0 metre centres Position strongbacks either tight to the underside of top chord (shown), or alternatively tight to topside of bottom chord 35x72 (min) blocks twice nailed to top and bottom members and twice nailed to brace using 3.35x90mm long galvanised wire nails

21. PSD18 - Strongback Detail INSTERT STRONGBACK THROUGH JOISTS BEFORE FIXING JOISTS. IT CANNOT BE INSTALLED AFTER JOISTS HAVE BEEN FIXED DOWN Fix at a maximum of 4.0 metre centres Position strongbacks either tight to the underside of top chord (shown), or alternatively tight to topside of bottom chord (with built in verticals)

22. PSD19 - Strongback Bridging Bridging joists to overlap by at least 1 joist spacing and not less than 600mm

23. PSD20 - Strongback Splice Timber splice plate fixed to strongback with 10 nails each side of splice. Splice plate to be same section size as strongback

24. PSD21 - Horizontal restraint detail 35x97 timber twice nailed to bottom chord of each joist Strap to be fixed with a minimum of four fixings of which one is to be over the third joist