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Span Table – TH75-115 Top Hat
Ceiling Installation
Top Hat Section TH-75-115 = 20x35x75x35x20 x1.15 mm
| Lateral Pressure |
MAXIMUM TOP HAT SPAN
mm |
| Permissible kPa |
Ultimate Limit State |
Single Span |
Double Span |
Continuous Span |
Top Hat Spacing in mm |
| 600 |
450 |
600 |
450 |
600 |
450 |
| 0.75 |
1.12 |
1570 |
1725 |
2095 |
2305 |
1935 |
2135 |
| 1.00 |
1.50 |
1425 |
1570 |
1905 |
2095 |
1760 |
1935 |
| 1.50 |
2.25 |
1245 |
1365 |
1660 |
1830 |
1540 |
1690 |
| 2.00 |
3.00 |
1130 |
1245 |
1470 |
1660 |
1395 |
1540 |
| 2.50 |
3.75 |
1050 |
1155 |
1310 |
1510 |
1300 |
1430 |
| 3.00 |
4.50 |
990 |
1085 |
1190 |
1380 |
1220 |
1345 |
| 4.00 |
6.00 |
900 |
990 |
1035 |
1190 |
1080 |
1220 |
| 5.00 |
7.50 |
835 |
920 |
920 |
1065 |
970 |
1100 |
| 6.00 |
9.00 |
785 |
865 |
840 |
975 |
850 |
1000 |
Based on:
- Deflection = span/360.
- Critical of Strength & deflection
- As per AS1538 and AS4600 - Cold Formed Steel Structures Code.
- Permissible stress design and ultimate loads.
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