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Eurocode 2 Table of Reinforcement Area and Weight for Distributed Reinforcement Bars and Individual Reinforcement Bars

Description:
Design aid - Table of reinforcement area and weight for distributed reinforcement bars (in cm2/m, mm2/m or kg/m2) and individual reinforcement bars (in cm2, mm2, or kg/m)
According to:
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All Calculations
Input
Tables
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Area of distributed reinforcement bars
Area of distributed reinforcement bars (cm2/m)
column 0column 1column 2column 3column 4column 5column 6column 7column 8column 9column 10column 11column 12
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Area of individual reinforcement bars
Area of individual reinforcement bars (cm2)
column 0column 1column 2column 3column 4column 5column 6column 7column 8column 9column 10column 11column 12
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Weight of distributed reinforcement bars
Weight of distributed reinforcement bars (kg/m2)
column 0column 1column 2column 3column 4column 5column 6column 7column 8column 9column 10column 11column 12
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Weight of individual reinforcement bars
Weight of individual reinforcement bars (kg/m)
column 0column 1column 2column 3column 4column 5column 6column 7column 8column 9column 10column 11column 12
Notes
  1. Reinforcement areas are provided in units of cm2/m or mm2/m for the case of distributed reinforcement bars and units of cm2 or mm2 for the case of individual reinforcement bars. Reinforcement weights are provided in units of kg/m2 for the case of distributed reinforcement bars and units of kg/m for the case of individual reinforcement bars.
Details

Calculation of reinforcement area

The cross-sectional area of a single reinforcement bar is:

As = π ⋅ Φ2 / 4

where Φ is the nominal diameter of the bar.

For n isolated reinforcement bars the total cross-sectional area is:

As,tot = nAs

For distributed reinforcement bars at spacing s the total cross-sectional area is:

As,tot/s = As / s

Calculation of reinforcement weight

The unit weight of reinforcement steel γ is specified in EN1991-1-1 Annex A. The unit weight of steel γ is specified between 77.0 kN/m3 and 78.5 kN/m3. In this calculation the density of reinforcement steel is assumed equal to ρ = 7850 kg/m.

For n isolated reinforcement bars the total weight is:

wtot = nρAs

For distributed reinforcement bars at spacing s the total weight is:

wtot/s = ρAs / s