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

Figure 3 All spans loaded
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