Horizontal Steel Stud and Top Hat Ceilings · 2019. 6. 3. · Technical Adice 1300 724 505 knaufplasterboard.com.au 291 Systems HORIZONTAL STEEL STUD AND TOP HAT CEILINGS 3.5.1 Fire

290 Technical Advice 1300 724 505 knaufmetal.com.au

Horizontal Steel Stud and Top Hat CeilingsThe ceilings in this section are constructed using steel studs as the ceiling joists.

Common applications for these ceilings include corridors, above stairwells, and under concrete floors, where unsupported spans are required.

This section contains systems for fire rated ceilings, including fire rated from above only, and fire rated from above and below. If access is from below only, and the ceiling is required to be fire rated from above, an alternative system is a Horizontal Shaft Wall [Refer to Section 3.5.2].

For acoustic ceiling systems using steel stud framing to control soil and waste pipe noise [Refer to Section 3.6.1].

For ceiling installation [Refer to Section 3.4.1].

SYSTEMS 291

INSTALLATION 295

FRAMING 295

CONSTRUCTION DETAILS 306

290

Technical Advice 1300 724 505 knaufplasterboard.com.au 291

Systems

3.5.1HORIZONTAL STEEL STUD AND TOP HAT CEILINGSFire Rated

KSC3CEILING LINING: [Above side] 2 layers of 16mm FireShield

[Below side] 3 layers of 16mm FireShield FRAME: Steel studs as ceiling joists at maximum 450mm spacing[Span based on Serviceability Wo 0.35 kPa and maximum deflection span/360 or 10mm] [Ceiling joists are lipped C studs]

FRL 120/120/120rated from above

and belowFire Report FAR 4456

Stud Size (mm)

Ceiling Thickness(mm)

Sound Insulation for studs at 450mm centres Rw (Rw + Ctr)

Stud Depth No Insulation

50mm EarthWool 11 kg/m³

Acoustic Report Day Design 3094–2392 172 52 (45) 57 (52)

150 230 54 (47) 57 (53)



FRL 120/120/120rated from above

90/90/90rated from below

Fire Report FAR 4456

Stud Size (mm)





Acoustic Report Day Design 3094-2392 156 49 (42) 55 (49)

150 214 51 (44) 55 (51)

KSC4CEILING LINING: [Above side] 1 layer of 16mm FireShield

[Below side] 1 layer of 10mm MastaShieldFRAME: Steel studs as ceiling joists at maximum 450mm spacing[Span based on Serviceability UDL 0.35 kPa and maximum deflection span/360 or 10mm] [Ceiling joists are lipped C studs] [Ceiling is non-trafficable]

FRL 60/60/60

rated from above onlyFire Report FAR 4456

Stud Size (mm)





Acoustic Report Insul92 118 38 (28) 42 (31)

150 176 40 (30) 45 (35)

Technical Advice 1300 724 505 knaufmetal.com.au292

Systems

3.5.1 HORIZONTAL STEEL STUD AND TOP HAT CEILINGSFire Rated


[Below side] Lining optionalFRAME: Steel studs as ceiling joists at maximum 450mm spacing[Span based on Serviceability Wo 0.35 kPa and maximum deflection span/360 or 10mm] [Ceiling joists are lipped C studs]

FRL 60/60/60


Stud Size (mm)




Acoustic Report Day Design3094-2392 124 35 (32)

150 182 35 (32)



FRL 90/90/90


Stud Size (mm)





150 189 37 (35)



FRL 120/120/120


Stud Size (mm)





150 198 38 (36)


Systems

3.5.1HORIZONTAL STEEL STUD AND TOP HAT CEILINGSFire Rated


[Below side] 1 layer of 16mm FireShield FRAME: Steel studs as ceiling joists at maximum 450mm spacing[Span based on Serviceability Wo 0.35 kPa and maximum deflection span/360 or 10mm] [Ceiling joists are lipped C studs]

FRL 120/120/120

rated from above only Fire Report FAR 4456

Stud Size (mm)






150 198 46 (38) 49 (43)


[Below side] 1 layer of 10mm MastaShield FRAME: Steel studs as ceiling joists at maximum 450mm spacing[Span based on Serviceability Wo 0.35 kPa and maximum deflection span/360 or 10mm] [Ceiling joists are lipped C studs]

FRL 90/90/90


Stud Size (mm)






150 186 44 (34) 49 (39)


[Below side] 2 layers of 13mm FireShieldFRAME: Steel studs as ceiling joists at maximum 450mm spacing[Span based on Serviceability UDL 0.35 kPa and maximum deflection span/360 or 10mm] [Ceiling joists are lipped C studs] [Ceiling is non-trafficable]

FRL 60/60/60

rated from above and below


Stud Size (mm)






150 192 46 (38) 49 (43)


Systems

3.5.1 HORIZONTAL STEEL STUD AND TOP HAT CEILINGSFire Rated



FRL 60/60/60

rated from above

120/120/120rated from below


Stud Size (mm)





Acoustic Report Day Design 3094-2392 156 48 (39) 51 (43)

150 214 49 (42) 53 (46)

3.5.1


HORIZONTAL STEEL STUD AND TOP HAT CEILINGSFraming Installation


Systems

3.5.13.5.1

295

Installation

Horizontal stud

FIRE RATED AND NON-FIRE RATEDDETAILS FOR NON-TRAFFICABLE SINGLE SPAN HORIZONTAL STUD CEILINGS

FIGURE 1 Horizontal Stud Ceiling - Type AFor fire rated and non-fire rated systems - Section

FIGURE 3 Horizontal Stud Ceiling - Type CFor fire rated and non-fire rated systems - Section

FIGURE 4 Horizontal Stud Ceiling - Type DFor fire rated and non-fire rated systems - Section

Horizontal stud

Nogging

5-10mm

15mm

15mm

Horizontal stud

Fixed connection - fix track to horizontal stud on both sides using 10g screws

Fixed connection - fix track to horizontal stud on both sides using 10g screws

Sliding connection - L-bracket (AJCB) used to reinforce connection. Use 12g hex-head screws through slots. L-bracket only suitable for 92 and 150mm studs.

Sliding connection - L-bracket (AJCB) used to reinforce connection. Use 12g hex-head screws through slots. L-bracket only suitable for 92 and 150mm studs.

Use appropriate anchor for substrate. If using screws, then use minimum 12g hex-head screws through outer holes in the short leg of the Accujamb Connector Bracket (AJCB)

Use appropriate anchor for substrate

100mm between end connection and nogging or bridging

Use appropriate anchors for substrate. if using screws, then use minimum 12g hex-head screws

Use appropriate anchors for substrate. If using screws, then use minimum 12g hex-head screws


Use appropriate anchors for substrate

Refer to framing tables for nogging or bridging requirements. Fix to horizontal studs using 10g screws

Bridging

Bridging can be used as an alternative to noggings when the ceiling is lined on one side only - Fix bridging to horizontal studs using 10g screws

Bridging can be used as an alternative to noggings when the ceiling is lined on one side only - Fix bridging to horizontal studs using 10g screws

Sliding connection0.5/0.55mm BMT stud - use 0.5mm BMT track0.75mm BMT stud - use 0.7/0.75mm BMT track1.15mm BMT stud - use 1.15mm BMT track

Fixed connection - L-bracket (AJCB) used to reinforce connection. Use 12g hex-head screws through outer holes in the short leg. L-bracket only suitable for 92 and 150mm studs.




15mm

15mm

Ceiling Type A is not recommended in close proximity

to vibration or mechanical equipment.

Ceiling Type B has a low tolerance for movement, and is

not suitable for fire rated systems

FIGURE 2 Horizontal Stud Ceiling - Type BFor non-fire rated systems only - Section

Horizontal stud

Nogging

Fixed connection at both ends - fix track to horizontal stud on both sides using 10g screws


100mm between end connection and nogging or bridging

Use appropriate anchors for substrate. if using screws, then use minimum 12g hex-head screws

Strengthen frame near inspection panels to

allow for maintenance loads

FIRE RATED AND NON-FIRE RATEDDETAILS FOR NON-TRAFFICABLE SINGLE SPAN HORIZONTAL STUD CEILINGS

3.5.1



INTERNAL NON-TRAFFICABLE HORIZONTAL STEEL STUD CEILING SPAN TABLE (mm)Refer to Section 2.3 for assistance determining the relevant wind pressures for a specifi c project.

Ultimate wind pressure Wu (kPa) 0.375 Horizontal steel stud ceiling linedwith plasterboard on the underside onlyServiceability wind pressure Ws (kPa) 0.25

Horizontal Stud Depth and BMT

(mm)

MaximumHorizontal

Stud Centres(mm)

Defl ection limited to span/360

1x10mm 2x10mm 1x13mm 2x13mm 3x13mm 1x16mm 2x16mm 3x16mm

64 x 0.5

600 2040 1920 1980 1820 1710 1970 1810 1690450 2250 2110 2180 2010 1880 2170 1990 1860400 2340 2190 2270 2090 1950 2260 2070 1940300 2570 2410 2490 2290 2150 2480 2280 2130

64 x 0.75

600 2320 2180 2250 2070 1940 2240 2060 1920450 2560 2400 2480 2280 2130 2470 2270 2120400 2660 2490 2580 2370 2220 2570 2360 2200300 2930 2740 2840 2610 2440 2830 2590 2420

64 x 1.15

600 2670 2500 2590 2380 2230 2580 2370 2210450 2940 2760 2850 2620 2450 2840 2610 2430400 3060 2870 2960 2730 2550 2950 2710 2530300 3360 3150 3260 3000 2810 3250 2980 2790

76 x 0.55

600 2400 2250 2320 2140 2000 2320 2130 1990450 2640 2480 2560 2350 2200 2550 2340 2190400 2750 2570 2660 2450 2290 2650 2430 2270300 3020 2830 2930 2690 2520 2920 2680 2500

76 x 0.75

600 2650 2480 2570 2360 2210 2560 2350 2190450 2910 2730 2820 2600 2430 2810 2580 2410400 3030 2840 2940 2700 2530 2930 2690 2510300 3340 3130 3230 2970 2780 3220 2960 2760

76 x 1.15

600 3050 2860 2950 2720 2540 2940 2700 2520450 3350 3140 3250 2990 2800 3240 2970 2780400 3490 3270 3380 3110 2910 3370 3090 2890300 3840 3600 3720 3420 3200 3710 3400 3180

92 x 0.55

600 2780 2600 2690 2480 2320 2680 2460 2300450 3060 2870 2960 2730 2550 2950 2710 2530400 3180 2980 3080 2830 2650 3070 2820 2630300 3500 3280 3390 3120 2920 3380 3100 2900

92 x 0.75

600 3070 2880 2970 2740 2560 2960 2720 2540450 3380 3170 3270 3010 2820 3260 2990 2800400 3510 3290 3400 3130 2930 3390 3110 2910300 3860 3620 3740 3450 3220 3730 3430 3200

92 x 1.15

600 3130 2990 3060 2880 2750 3050 2870 2730450 3390 3230 3310 3120 2970 3300 3100 2950400 3500 3340 3420 3220 3060 3410 3200 3050300 3790 3620 3710 3480 3310 3700 3470 3300

150 x 0.75

600 4520 4240 4380 4030 3770 4360 4000 3740450 4970 4660 4820 4430 4150 4800 4410 4120400 5170 4850 5010 4610 4310 4990 4580 4280300 5690 5340 5510 5070 4750 5490 5040 4710

150 x 1.15

600 4940 4890 4940 4650 4350 4940 4620 4320450 5740 5380 5560 5110 4780 5540 5080 4750400 5960 5590 5780 5320 4980 5760 5290 4940300 6560 6160 6360 5850 5480 6340 5820 5440

ANCHOR DEMAND TABLE

CeilingSpan(mm)

Shear(kN)

Pull-out(kN)

6560 1.2 1.21. Anchors at 600mm max centres and

100mm max from ends.2. 150mm studs require 2 anchors across

width at 600mm max cenrtes.

NOGGING/BRIDGING TABLE

Ceiling Span (m)

No. ofNoggings/Bridging

evenly spaced0 - 2 02 - 4 14 - 6 26 - 7 3

MAXIMUM SPAN FOR CEILING TYPES (mm)

MaximumHorizontal Stud Centres (mm)

Ceiling Type

A* B or C D600 1340 3350 4940450 1790 4470 5740400 2020 5020 5960300 2690 6560 6560

* Type A Ceilings require a nogging 100mm from the sliding end connection.

1. All Type A Ceilings require either a nogging or bridging 100mm from the sliding end connection.2. Span tables include downward (suction) and upward (uplift) pressures, intended for internal use only.3. Span tables include self weight but is not applicable to additional point loads or live loads.4. Span tables refer to Knauf Steel Studs of grade G300 steel with ZincalumeTM AM150 corrosion protection. Maximum production lengths available are

7.2m5. Calculations based upon a single span and designed in accordance with AS/NZS 4600:2005 Cold Formed Steel Structures.6. End track must be similar Base Metal Thickness (BMT) as the stud. 7. Ultimate Load Case 1.2G + 1.2U + Wu8. Serviceability Load Case G + U + Ws, with deflection limited to span/360.9. Connections must be checked using ‘Maximum Span for Ceiling Types’ table.10. The project engineer must approve the nominated pressures and deflection limits are appropriate for a specific project.

3.5.1






(mm)

MaximumHorizontal

Stud Centres(mm)



64 x 0.5

600 1900 1800 1850 1720 1630 1840 1720 1620450 2090 1980 2030 1900 1790 2030 1890 1780400 2170 2060 2110 1970 1860 2110 1960 1850300 2390 2270 2330 2170 2050 2320 2160 2040

64 x 0.75

600 2160 2050 2100 1960 1850 2100 1950 1840450 2370 2250 2310 2160 2040 2310 2150 2030400 2470 2340 2400 2240 2120 2400 2230 2110300 2710 2580 2650 2470 2330 2640 2460 2320

64 x 1.15

600 2480 2350 2420 2250 2130 2410 2240 2120450 2730 2590 2660 2480 2340 2650 2470 2330400 2840 2690 2760 2580 2440 2760 2570 2420300 3120 2960 3040 2840 2680 3030 2820 2660

76 x 0.55

600 2210 2110 2170 2020 1910 2160 2010 1900450 2370 2290 2330 2230 2100 2330 2220 2090400 2450 2360 2400 2300 2190 2400 2290 2170300 2630 2540 2590 2470 2380 2580 2460 2370

76 x 0.75

600 2390 2310 2350 2240 2110 2350 2220 2100450 2580 2490 2540 2420 2320 2530 2410 2310400 2660 2570 2620 2490 2400 2610 2490 2390300 2870 2770 2820 2690 2580 2810 2680 2570

76 x 1.15

600 2780 2680 2730 2570 2430 2730 2560 2410450 3010 2900 2960 2820 2670 2950 2810 2660400 3110 3000 3060 2910 2780 3050 2900 2760300 3370 3250 3310 3150 3020 3310 3140 3000

92 x 0.55

600 2320 2230 2280 2160 2060 2270 2150 2050450 2520 2430 2480 2350 2250 2470 2340 2240400 2590 2510 2550 2440 2330 2550 2430 2320300 2790 2700 2740 2620 2520 2740 2610 2510

92 x 0.75

600 2540 2450 2490 2380 2290 2490 2370 2280450 2730 2640 2690 2560 2460 2680 2550 2450400 2820 2720 2770 2640 2540 2760 2630 2530300 3030 2930 2980 2850 2740 2980 2840 2720

92 x 1.15

600 2930 2830 2880 2740 2630 2870 2730 2620450 3170 3060 3110 2960 2840 3110 2950 2830400 3270 3150 3220 3060 2940 3210 3050 2920300 3540 3410 3480 3310 3180 3470 3300 3160

150 x 0.75

600 2950 2850 2900 2770 2660 2890 2760 2640450 3170 3060 3120 2980 2860 3110 2970 2850400 3270 3160 3210 3070 2950 3210 3060 2940300 3520 3400 3460 3300 3170 3450 3290 3160

150 x 1.15

600 3370 3250 3310 3160 3030 3300 3150 3020450 3630 3510 3570 3410 3270 3560 3390 3260400 3750 3620 3690 3510 3370 3680 3500 3360300 4050 3910 3980 3790 3640 3970 3780 3620

ANCHOR DEMAND TABLE

CeilingSpan(mm)

Shear(kN)

Pull-out(kN)





Ceiling Span (m)

No. of Noggings/Bridging

evenly spaced0 - 2 02 - 4 14 - 6 2



Ceiling Type

A* B or C D600 1140 2840 3370450 1520 3630 3630400 1710 3750 3750300 2280 4050 4050




3.5.1






(mm)

MaximumHorizontal

Stud Centres(mm)



64 x 0.5

600 1740 1670 1700 1610 1540 1700 1600 1530450 1910 1830 1870 1770 1690 1870 1760 1680400 1990 1910 1950 1840 1760 1940 1840 1750300 2190 2100 2140 2030 1930 2140 2020 1920

64 x 0.75

600 1970 1890 1940 1830 1750 1930 1820 1740450 2170 2080 2130 2020 1920 2120 2010 1910400 2260 2170 2210 2100 2000 2210 2090 1990300 2490 2390 2440 2310 2200 2430 2300 2190

64 x 1.15

600 2270 2180 2220 2110 2010 2220 2100 2000450 2500 2400 2450 2320 2210 2440 2310 2200400 2600 2490 2550 2410 2300 2540 2400 2290300 2860 2740 2800 2650 2530 2790 2640 2520

76 x 0.55

600 2030 1960 2000 1890 1800 1990 1880 1790450 2210 2150 2180 2080 1980 2180 2070 1970400 2280 2220 2250 2160 2060 2240 2150 2050300 2450 2390 2420 2330 2260 2420 2330 2250

76 x 0.75

600 2230 2160 2200 2090 1990 2190 2080 1980450 2400 2330 2370 2280 2190 2360 2280 2180400 2470 2410 2440 2350 2280 2440 2350 2270300 2670 2590 2630 2540 2460 2630 2530 2450

76 x 1.15

600 2320 2320 2320 2320 2290 2320 2320 2280450 2790 2710 2750 2640 2520 2750 2630 2510400 2880 2800 2840 2730 2620 2840 2730 2610300 3120 3030 3080 2960 2860 3070 2950 2850

92 x 0.55

600 2140 2070 2110 2020 1940 2100 2010 1930450 2330 2260 2300 2200 2120 2290 2190 2110400 2410 2340 2380 2280 2200 2370 2270 2190300 2600 2530 2570 2480 2390 2560 2470 2380

92 x 0.75

600 2360 2300 2330 2250 2180 2330 2240 2170450 2540 2470 2510 2420 2340 2500 2410 2330400 2620 2550 2590 2490 2410 2580 2490 2410300 2820 2750 2790 2690 2600 2780 2680 2590

92 x 1.15

600 2720 2640 2680 2580 2500 2680 2580 2490450 2940 2860 2900 2790 2700 2890 2780 2690400 3030 2950 2990 2880 2790 2990 2870 2770300 3280 3190 3240 3110 3010 3230 3100 3000

150 x 0.75

600 2740 2670 2710 2600 2510 2700 2590 2500450 2950 2870 2910 2810 2720 2910 2800 2710400 3040 2960 3000 2900 2810 3000 2890 2800300 3270 3190 3230 3120 3020 3230 3110 3010

150 x 1.15

600 3130 3050 3090 2980 2880 3080 2970 2870450 3370 3280 3330 3210 3110 3330 3200 3100400 3480 3390 3440 3310 3200 3430 3300 3190300 3760 3660 3710 3570 3460 3700 3560 3440

ANCHOR DEMAND TABLE

CeilingSpan (mm)

Shear(kN)

Pull-out(kN)





Ceiling Span (m)


evenly spaced0 - 2 02 - 4 1



Ceiling Type

A* B or C D600 930 2320 3130450 1240 3090 3370400 1400 3480 3480300 1860 3760 3760




3.5.1






(mm)

MaximumHorizontal

Stud Centres(mm)



64 x 0.5

600 1610 1550 1580 1510 1450 1580 1510 1450450 1770 1710 1740 1660 1600 1740 1660 1590400 1840 1780 1810 1730 1660 1810 1720 1650300 2020 1960 1990 1900 1830 1990 1900 1820

64 x 0.75

600 1830 1770 1800 1720 1650 1790 1710 1640450 2010 1940 1980 1890 1820 1970 1880 1810400 2090 2020 2060 1970 1890 2050 1960 1880300 2300 2220 2260 2160 2080 2260 2160 2070

64 x 1.15

600 1920 1920 1920 1920 1900 1920 1920 1890450 2310 2230 2270 2170 2090 2270 2170 2080400 2400 2320 2360 2260 2170 2360 2250 2160300 2640 2560 2600 2490 2390 2600 2480 2380

76 x 0.55

600 1880 1820 1860 1770 1710 1850 1770 1700450 2060 2010 2040 1950 1880 2030 1950 1870400 2130 2080 2110 2030 1950 2110 2020 1940300 2300 2260 2280 2220 2150 2280 2210 2140

76 x 0.75

600 1920 1920 1920 1920 1880 1920 1920 1870450 2250 2210 2230 2160 2070 2230 2150 2060400 2320 2270 2300 2230 2150 2300 2230 2140300 2500 2450 2480 2410 2340 2480 2400 2340

76 x 1.15

600 1920 1920 1920 1920 1920 1920 1920 1920450 2560 2550 2560 2480 2380 2560 2470 2370400 2700 2640 2670 2580 2480 2670 2570 2470300 2920 2850 2890 2800 2720 2880 2790 2710

92 x 0.55

600 1990 1940 1960 1890 1830 1960 1890 1820450 2170 2120 2140 2070 2010 2140 2070 2000400 2250 2190 2220 2150 2080 2220 2140 2070300 2450 2390 2420 2340 2270 2420 2330 2260

92 x 0.75

600 2220 2170 2200 2130 2080 2190 2130 2070450 2390 2340 2360 2300 2240 2360 2290 2230400 2460 2410 2440 2370 2310 2430 2360 2300300 2650 2600 2620 2550 2480 2620 2540 2470

92 x 1.15

600 2550 2490 2520 2450 2380 2520 2440 2370450 2750 2690 2720 2640 2570 2720 2640 2560400 2840 2780 2810 2730 2650 2810 2720 2650300 3070 3000 3040 2950 2870 3040 2940 2860

150 x 0.75

600 2560 2500 2530 2450 2370 2530 2440 2370450 2780 2720 2750 2670 2590 2750 2660 2580400 2860 2800 2830 2750 2680 2830 2750 2670300 3080 3010 3050 2960 2880 3040 2950 2880

150 x 1.15

600 2840 2840 2840 2820 2750 2840 2820 2740450 3170 3100 3140 3040 2960 3130 3040 2950400 3270 3200 3230 3140 3060 3230 3130 3050300 3530 3450 3490 3390 3300 3490 3380 3290

ANCHOR DEMAND TABLE

CeilingSpan(mm)

Shear(kN)

Pull-out(kN)




NOGGING TABLE

Ceiling Span (m)


evenly spaced0 - 2 02 - 4 1



Ceiling Type

A* B or C D600 770 1920 2840450 1030 2560 3170400 1160 2880 3270300 1540 3530 3530




3.5.1



INTERNAL NON-TRAFFICABLE HORIZONTAL STEEL STUD CEILING SPAN TABLE (mm) Refer to Section 2.3 for assistance determining the relevant wind pressures for a specific project.

Ultimate wind pressure Wu (kPa) 0.525 Horizontal steel stud ceiling lined with plasterboard above and belowServiceability wind pressure Ws (kPa) 0.35


(mm)

Maximum Horizontal

Stud Centres (mm)

Deflection limited to span/360

System Number

KSC4 KSC9, KSC10, KSC11 KSC2, KSC12 KSC3

92 x 0.75450 3100 2840 2830 2940400 3230 2960 2940 3040300 3560 3280 3250 3320

92 x 1.15 or 150 x 0.75

450 3390 3240 3190 3250400 3500 3380 3320 3370300 3770 3730 3670 3690




(mm)

Maximum Horizontal

Stud Centres (mm)


System Number


92 x 0.75450 2860 2670 2670 2790400 2980 2780 2780 2890300 3290 3080 3070 3160

92 x 1.15 or 150 x 0.75

450 3200 3050 3020 3090400 3300 3170 3140 3200300 3560 3510 3470 3510

ANCHOR DEMAND TABLE

Ceiling Span (mm)

Shear (kN)

Pull-out (kN)




NOGGING TABLE

Ceiling Span (m)

No. of Noggings evenly spaced

0 - 2 02 - 4 1


Maximum Horizontal Stud Centres (mm)

Ceiling Type

A B or C D450 2250 3390 3390400 2530 3500 3500300 3370 3770 3770

ANCHOR DEMAND TABLE

Ceiling Span (mm)

Shear (kN)

Pull-out (kN)




NOGGING TABLE

Ceiling Span (m)


0 - 2 02 - 4 1



Ceiling Type

A B or C D450 1920 3200 3200400 2160 3300 3300300 2880 3560 3560

1. Span tables include downward (suction) and upward (uplift) pressures, intended for internal use only.2. Span tables include self weight but is not applicable to additional point loads or live loads.3. Span tables refer to Knauf Steel Studs of grade G300 steel with ZincalumeTM AM150 corrosion protection. Maximum production lengths available are


3.5.1






(mm)

Maximum Horizontal

Stud Centres (mm)


System Number


92 x 0.75450 2660 2510 2530 2660400 2770 2620 2630 2750300 3060 2900 2910 3000

92 x 1.15 or 150 x 0.75

450 3030 2870 2860 2940400 3130 2990 2980 3050300 3380 3310 3290 3340

ANCHOR DEMAND TABLE

Ceiling Span (mm)

Shear (kN)

Pull-out (kN)




NOGGING TABLE

Ceiling Span (m)


0 - 2 02 - 4 1



Ceiling Type

A B or C D450 1650 3030 3030400 1850 3130 3130300 2470 3380 3380

1. Span tables include downward (suction) and upward (uplift) pressures, intended for internal use only.2. Span tables include self weight but is not applicable to additional point loads or live loads.3. Span tables refer to Knauf Steel Studs of grade G300 steel with ZincalumeTM AM150 corrosion protection. Maximum production lengths available are


3.5.1




Ultimate wind pressure Wu (kPa) 0.525 Horizontal steel stud ceiling linedwith plasterboard on the above side onlyServiceability wind pressure Ws (kPa) 0.35


(mm)

MaximumHorizontal

Stud Centres(mm)


System Number

KSC6 KSC7 KSC8

92 x 0.75450 2550 2460 2450400 2630 2540 2530300 2840 2740 2720

92 x 1.15or 150 x 0.75

450 2950 2840 2830400 3050 2940 2920300 3300 3180 3160




(mm)

MaximumHorizontal

Stud Centres(mm)


System Number

KSC6 KSC7 KSC8

92 x 0.75450 2410 2340 2330400 2490 2410 2410300 2680 2600 2590

92 x 1.15or 150 x 0.75

450 2780 2700 2690400 2870 2790 2770300 3100 3010 3000

ANCHOR DEMAND TABLE

CeilingSpan(mm)

Shear(kN)

Pull-out(kN)




NOGGING TABLE

Ceiling Span (m)

No. of Noggingsevenly spaced

0 - 2 02 - 4 1



Ceiling Type

A* B or C D450 2250 3390 3390400 2530 3500 3500300 3370 3770 3770


ANCHOR DEMAND TABLE

CeilingSpan(mm)

Shear(kN)

Pull-out(kN)




NOGGING TABLE

Ceiling Span (m)


0 - 2 02 - 4 1



Ceiling Type

A* B or C D450 1920 3200 3200400 2160 3300 3300300 2880 3560 3560




3.5.1






(mm)

MaximumHorizontal

Stud Centres(mm)


System Number

KSC6 KSC7 KSC8

92 x 0.75450 2290 2240 2230400 2360 2310 2300300 2540 2480 2470

92 x 1.15or 150 x 0.75

450 2640 2570 2560400 2720 2650 2650300 2940 2870 2860

ANCHOR DEMAND TABLE

CeilingSpan(mm)

Shear(kN)

Pull-out(kN)




NOGGING TABLE

Ceiling Span (m)


0 - 2 02 - 4 1



Ceiling Type

A* B or C D450 1650 3030 3030400 1850 3130 3130300 2470 3380 3380




3.5.1


HORIZONTAL STEEL STUD AND TOP HAT CEILINGSFramingInstallation

Structural framing

Top Hat

Top Hat span Top Hat spacing

FIGURE 3 Top Hat Span and Spacing

CEILING 50x15x1.15 TOP HAT SPAN TABLE (mm)

Span type

Top Hat spacing (mm)

Ultimate Wind Pressure Wu (kPa)

1.0 2.0 3.0 4.0 5.0 6.0 7.0

Serv

icea

bili

tydefl

ect

ion

Span /

360

Single span

600 740 610 540 500 470 440 420450 810 680 600 550 510 480 460400 850 700 620 570 530 500 480300 930 770 690 630 590 560 530

2 or more spans

600 910 760 680 560* 450* 380* 330*450 1010 840 740 680 610* 510* 440*400 1050 870 770 710 660 570* 490*300 1150 960 850 780 730 690 650

*Limited by 2 x 12g hex-head screw connection capacity into 1.15mm BMT G300 steel. Contact Knauf if fixing to a different substrate for the possibility of spanning further.


Span type



1.0 2.0 3.0 4.0 5.0 6.0 7.0

Serv

icea

bili

tydefl

ect

ion

Span /

360

Single span

600 1090 910 810 740 690 650 620450 1200 1000 890 810 760 720 680400 1250 1040 920 850 790 740 710300 1380 1140 1020 930 870 820 780

2 or more spans

600 1350 1060* 730* 560* 450* 380* 330*450 1490 1240 980* 750* 610* 510* 440*400 1550 1290 1100* 840* 680* 570* 490*300 1700 1420 1260 1130* 910* 770* 660


1. Check maximum cladding span and fastener spacing requirements from the manufacturers literature. Maximum cladding weight 20 kg/m2.2. Span tables are based upon downward (suction) and upward (uplift) pressures. 3. Span tables include self weight but is not applicable to additional point loads and live loads.4. Tables refer to Knauf Top Hats of grade G300 steel with ZincalumeTM AM150 corrosion protection.5. All Top Hats must be supported 150mm maximum from ends.6. Calculations based upon either single span or 2-or-more spans, designed in accordance with AS/NZS 4600:2005 Cold Formed Steel Structures.7. Ultimate Load Case 1.2G + 1.2U + Wu8. Serviceability Load Case G + U + Ws, with deflection limited to span/360. Serviceability pressure taken as 65% of ultimate wind pressure.9. Connections checked using 2 x 12g hex-head screws into minimum 1.15mm thick G300 steel.10. Splicing of Top Hats is not permitted.11. The project engineer must approve the nominated pressures and deflection limits are appropriate for a specific project.

Structural framing

Top Hat

Top Hat span Top Hat spacing

FIGURE 3 Top Hat Span and Spacing


Span type



1.0 2.0 3.0 4.0 5.0 6.0 7.0

Serv

icea

bili

tydefl

ect

ion

Span /

360

Single span

600 740 610 540 500 470 440 420450 810 680 600 550 510 480 460400 850 700 620 570 530 500 480300 930 770 690 630 590 560 530

2 or more spans

600 910 760 680 560* 450* 380* 330*450 1010 840 740 680 610* 510* 440*400 1050 870 770 710 660 570* 490*300 1150 960 850 780 730 690 650



Span type



1.0 2.0 3.0 4.0 5.0 6.0 7.0

Serv

icea

bili

tydefl

ect

ion

Span /

360

Single span

600 1090 910 810 740 690 650 620450 1200 1000 890 810 760 720 680400 1250 1040 920 850 790 740 710300 1380 1140 1020 930 870 820 780

2 or more spans

600 1350 1060* 730* 560* 450* 380* 330*450 1490 1240 980* 750* 610* 510* 440*400 1550 1290 1100* 840* 680* 570* 490*300 1700 1420 1260 1130* 910* 770* 660



FIGURE 5 Top hat span and spacing

3.5.1




Span type



1.0 2.0 3.0 4.0 5.0 6.0 7.0

Serv

icea

bili

tydefl

ect

ion

Span

/ 360

Single span

600 1230 1030 910 840 780 730 680450 1360 1130 1000 920 860 810 770400 1410 1180 1040 960 890 840 800300 1560 1290 1150 1050 980 930 880

2 or more spans

600 1530 1060* 730* 560* 450* 380* 330*450 1680 1400 980* 750* 610* 510* 440*400 1750 1450 1100* 840* 680* 570* 490*300 1930 1600 1420 1130* 910* 770* 660*



Span type



1.0 2.0 3.0 4.0 5.0 6.0 7.0

Serv

icea

bili

tydefl

ect

ion

Span

/ 360

Single span

600 1420 1180 1050 960 900 850 810450 1570 1300 1160 1060 990 940 890400 1630 1360 1200 1100 1030 970 930300 1800 1490 1330 1220 1130 1070 1020

2 or more spans

600 1760 1060* 730* 560* 450* 380* 330*450 1940 1410* 980* 750* 610* 510* 440*400 2020 1590* 1100* 840* 680* 570* 490*300 2220 1850 1470* 1130* 910* 770* 660*



Span type



1.0 2.0 3.0 4.0 5.0 6.0 7.0

Serv

icea

bili

tydefl

ect

ion

Span

/ 360

Single span

600 1850 1540 1370 1260 1140 960 830450 2040 1700 1510 1380 1290 1220 1100400 2120 1770 1570 1440 1340 1270 1210300 2340 1940 1730 1580 1480 1390 1330

2 or more spans

600 1880* 1060* 730* 560* 450* 380* 330*450 2510 1410* 980* 750* 610* 510* 440*400 2630 1590* 1100* 840* 680* 570* 490*300 2890 2120 1470* 1130* 910* 770* 660*



3.5.1Details

306

HORIZONTAL STEEL STUD AND TOP HAT CEILINGSConstruction Details

3.5.1


Details

FIRE RATED AND NON-FIRE RATEDDETAILS FOR HORIZONTAL STUD CEILINGS

FIGURE 6 Ceiling EndHorizontal stud to trackSliding connection - Section

FIGURE 9 Ceiling EndHorizontal stud fixed to Accujamb Connector BracketFixed connection - Section

SECTION A-A Ceiling EndHorizontal stud fixed to substrateFixed connection - Section

FIGURE 8 Ceiling EndHorizontal stud fixed to Accujamb Connector BracketSliding connection - Section

Knauf fire rated plasterboard



Horizontal stud

Horizontal stud

End track

Horizontal stud

Fix track to substrate with appropriate anchor at 600mm max centres and 100mm max from ends

Fix bracket to substrate with appropriate anchor

Horizontal stud

Nogging, if required. Fix to both sides of horizontal stud


Fix horizontal stud to substrate with appropriate anchor at 600mm centres and 100mm max from ends

A

A

A

A

Fix Accujamb Connector Bracket (AJCB) to horizontal studs with 12g Hex-head screws through slots

Fix Accujamb Connector Bracket (AJCB) to horizontal studs with 12g Hex-head screws through outer holes on short legA

A

5-10mm clearance to plasterboard. Fire andacoustic sealant required to maintain integrity

5-10mm clearance to plasterboard.Fire and acoustic sealant requiredto maintain integrity



Fix screws 50mm from sheet end

FIGURE 7 Ceiling EndHorizontal stud screw fixed to trackFixed connection - Section


Horizontal stud

Fix both sides of end track to horizontal stud


A

A





15mm

5-10mm

15mm


3.5.1

307Technical Advice 1300 724 505 knaufplasterboard.com.au

DetailsHORIZONTAL STEEL STUD AND TOP HAT CEILINGS

Construction Details


FIGURE 10 Ceiling EndHorizontal stud to trackFixed Connection - Section

SECTION B-B Ceiling EndHorizontal stud fixed to wall studFixed connection - Section

FIGURE 12 Ceiling EndHorizontal stud fixed to Accujamb Connector BracketSliding connection - Section

Horizontal stud

Load bearing

stud

Load bearing

stud

Load bearing

stud

Horizontal stud

End track



Fix track to wall stud with 12g Hex-head screws at 600mm max centres and 100mm max from ends

Fix 10g screws at 600mm max centres and 100mm max from ends

Fix Accujamb Connector Bracket (AJCB) to wall stud with 12g Hex-head screws through holes


Horizontal stud

Fix horizontal stud to wall stud with 12g Hex-head screws at 600mm centres and 100mm max from ends


B

B

B

B

5-10mm clearance to plasterboard. Fire and acoustic sealant required to maintain integrity

For 1 and 2 layer ceiling systems, use 50x50mm steel angle (ABA50).For 3 layer ceiling systems use 75x75mm steel angle (ABA75).




FIGURE 11 Ceiling EndHorizontal stud screw fixed to trackFixed Connection - Section

Horizontal stud

Load bearing

stud Knauf fire rateplasterboard


Fix track to wall stud with 12g Hex-head screws at 600mm max centres and 100mm max from ends

Fix 10g screws at 600mm max centres and 100mm max from ends

B

B



5-10mm

15mm


3.5.1Details

308 Technical Advice 1300 724 505 knaufmetal.com.au



FIGURE 14 Ceiling EndHorizontal stud fixed to load bearing wall studFixed connection - Section

SECTION D-D Ceiling EndHorizontal stud fixed to load bearing wall studFixed connection - Section

Bracing may be required when connected to stud walls

Load bearing

stud

Load bearing

stud

Horizontal stud End track



Horizontal studD

D 5-10mm clearance to plasterboard. Fire and acoustic sealant required to maintain integrityFor 1 and 2 layer ceiling systems,

use 50x50mm steel angle (ABA50).For 3 layer ceiling systems use 75x75mm steel angle (ABA75).

Fix track to both sides of load bearing wall stud


Bracing may be required when connected to stud walls


SECTION C-C Ceiling EndHorizontal stud fixed to load bearing wall studFixed connection - Section

Load bearing

stud

End track

Horizontal stud



FIGURE 13 Ceiling EndHorizontal stud fixed to load bearing wall studFixed connection - Section

Load bearing

stud

Horizontal stud


C

C


Fix track to both sides of load bearing wall stud


3.5.1




FIGURE 15 Soffit Connection Concrete slab to dropper studSection

FIGURE 16 Purlin Connection Purlin to dropper studSection

FIGURE 17 Horizontal Stud CeilingDropper stud to horizontal studSection

FIGURE 18 Horizontal Stud CeilingDropper stud to horizontal stud with top hatsSection

Horizontal stud

Horizontal stud

Dropperstud

Dropperstud

Dropperstud

Dropperstud


Top hats under horizontal studs

Hex-head screw through top hat flange

Additional horizontal stud required to provide adequate restraint

Fix dropper stud web to purlin web using hex-head screws

Fix dropper stud web to horizontal stud web using hex-head screws

Fix horizontal stud to dropper stud using hex-head screws


Fix track to both sides of dropper stud

Fix Accujamb Connector Bracket (AJCB) to substrate using appropriate anchor Purlin

Fix Accujamb Connector Bracket (AJCB) to dropper stud with 12g Hex-head screws through holes


Web to web connection. Fix using hex-head screws

Fix horizontal stud to dropper stud using hex-head screws

Bracing may be required

15mm min

15mm min

15mm min

15mm min


3.5.1Details

310


FIRE RATEDDETAILS FOR HORIZONTAL STUD CEILINGS - BUILT FROM UNDERSIDE

SECTION E-E Ceiling EndHorizontal stud fixed to substrateSection

SECTION E-E Option 1Section


FIRE RATEDDETAILS FOR HORIZONTAL STUD CEILINGS - BUILT FROM UNDERSIDE

FIGURE 19 Sacrificial Horizontal Stud CeilingFire rated from above and below (Built from underside)Section

FIGURE 20 Sacrificial Horizontal Stud CeilingFire rated from above (Built from underside)Section


Lower horizontal stud

Upper sacrificial horizontal stud

Fix lower horizontal stud to upper horizontal stud at 300mm max centres and 100mm max from ends

Alternative fixing method. Fix 35x35 steel angle to both studs at 300mm max centres and 100mm max from ends


Optional layer of plasterboard

Joint face layer only




E

E 15mm clearance to plasterboard. Fire and acoustic sealant required to maintain integrity





Fix bracket to substrate with appropriate anchor

15mm

15mm


3.5.1




Horizontal stud

Dropper stud

Dropper stud

Knauf plasterboard

Fix track to horizonal stud using 10g screws

Fix track to dropper stud using 12g hex-head screws

Nogging, if required. Fix to both sides of horizontal stud using 10g screws


Fix Accujamb Connector Bracket (AJCB) to substrate using appropriate anchor




NON-FIRE RATEDDETAILS FOR STUD BULKHEADS

FIGURE 21 Stud BulkheadSection



Fix track to wall stud with 12g Hex-head screws at 600mm centres and 100mm max from ends


Horizontal stud

Knauf plasterboard

Fix track to horizonal stud using 10g screws




15mm


15mm

15mm

15mm

NON-FIRE RATEDDETAILS FOR STUD BULKHEADS

3.5.1Details

312


NON-FIRE RATEDDETAIL FOR STUD BULKHEAD

Dropper studDiagonal

stud brace

Fix dropper stud web to purlin web using hex-head screws

Purlin

Stud off-cut to connect Dropper stud to Diagonal stud brace

Screws to be minimum 15mm from steel stud ends and edges


15mm min

15mm min

15mm min15mm min

NON-FIRE RATEDDETAIL FOR STUD BULKHEAD

3.5.1




Dropper stud




Maximum drop

1200mm

Fix track to both sides of dropper stud using 10g screws



FIRE RATEDDETAILS FOR STUD BULKHEADS - FIRE RATED FROM BOTH DIRECTIONSUsing Wall Systems KSW312 or KSW317 with Ceiling Systems KSC2 or KSC3

E

E


FIGURE 24 Stud BulkheadFire rated from both directionsSection




Fix lower horizontal stud to upper horizontal stud at 300mm max centres and 100mm max from ends using 12g hex-head screws

Alternative fixing method. Fix 35x35 steel angle to both studs at 300mm max centres and 100mm max from ends using 12g screws







Fix both sides of end track to horizontal stud using 10g screws

15mm

15mm


3.5.1Details

314


Innersacrificialdropper

stud

Outerdropper

stud






E

E



FIGURE 25 Stud BulkheadFire rated from both directions (Built from outside only)Section




Fix lower horizontal stud to upper horizontal stud at 300mm max centres and 100mm max from ends using 12g hex-head screws







Fix both sides of end track to horizontal stud using 10g screws

Max

imum

dro

p12

00m

m

Alternative fixing method. Fix 35x35 steel angle to both studs at 300mm max centres and 100mm max from ends using 12g screws

15mm


3.5.1




Dropper stud

Fix track to dropper stud using hex-head screws using 12g screws

25mm Shaft Liner

Horizontal CH-stud

Shaft WallJ-trackShaft Wall

J-trackShaft WallJ-track

CH-stud

25mm Shaft Liner

Any plasterboard minimum 10mm thick to cover exposed metal flanges of CH-stud, E-stud and J-track. Use cornice cement to adhere.

Any plasterboard minimum 10mm thick to cover exposed metal flanges of CH-stud, E-stud and J-track. Use cornice cement to adhere. Fix Shaft Liner to J-track

at 200mm max centres (after adhesive sets)




FIRE RATEDDETAILS FOR STUD BULKHEADS - FIRE RATED FROM BOTH DIRECTIONSUsing Wall Systems KSW312 or KSW317 with Ceiling Systems KSHWC3 or KSHWC4

F

F



J-trackE-stud


FIGURE 26 Stud Bulkhead Using Shaft Wall CeilingFire rated from both directions (Built from outside only)Section

SECTION F-F Ceiling EndHorizontal E-stud fixed to substrateSection

SECTION F-F Ceiling EndHorizontal J-track fixed to substrateSection

SECTION F-F Ceiling MiddleSection


Fix E-stud and J-track to substrate with appropriate anchor at 600mm max centres and 100mm max from ends


Maximum drop

1200mm

Fix both sides of end track to horizontal CH-stud using 10g screws

15mm

FIRE RATEDDETAILS FOR STUD BULKHEADS - FIRE RATED FROM BOTH DIRECTIONSUsing Wall Systems KSW312 or KSW317 with Ceiling Systems KSHWC3 or KSHWC4

Documents

Horizontal Steel Stud and Top Hat Ceilings · 2019. 6. 3. · Technical Adice 1300 724 505 knaufplasterboard.com.au 291 Systems HORIZONTAL STEEL STUD AND TOP HAT CEILINGS 3.5.1 Fire