Load set Simplified arrangements for slabs
The load arrangements can be simplified for slabs where it is only necessary to consider the all spans loaded arrangement (see Figure 3), provided the following conditions are met:
■ In a one-way spanning slab the area of each bay exceeds 30 m2 (a bay means a strip across the full width of a structure bounded on the other sides by lines of support).
■ The ratio of the variable actions (Qk) to the permanent actions (Gk) does not exceed 1.25.
■ The magnitude of the variable actions excluding partitions does not exceed 5 kN/m2.
Table 1
Indicative design working life (from UK National Annex to Eurocode)
Table 1
Indicative design working life (from UK National Annex to Eurocode)
|
Design life (years) |
Examples |
|
10 |
Temporary structures |
|
10-30 |
Replaceable structural parts |
|
1S-ZS |
Agricultural and similar structures |
|
SO |
Buildings and other common structures |
|
1Z0 |
Monumental buildings, bridges and other civil engineering structures |
Table 2
Selected bulk density of materials (from Eurocode 1, Part 1-1)
Table 2
Selected bulk density of materials (from Eurocode 1, Part 1-1)
|
Material |
Bulk density (kN/m3) |
|
Normal weight concrete |
Z4.0 |
|
Reinforced normal weight concrete |
ZS.O |
|
Wet normal weight reinforced concrete |
Alternate spans loaded Figure 1 Alternate spans loaded 
Figure Z Adjacent spans loaded Figure Z Adjacent spans loaded
|
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