Concrete Section Designer Civis.ai logo

Analyse a reinforced concrete beam or column design in accordance with Eurocode 2.

Define the concrete section:

Section settings:
1. Define the section profile
Concrete Strength fck MPa
Enter strength more than 0 & less than 60MPa.
Section width mm
Enter width more than 0 & less than 3000mm.
Section depth mm
Enter depth more than 0 & less than 3000mm.
2. Specify the bottom reinforcement
No. bars
Bar diameter mm
Cover (to bottom) mm
Enter cover greater than 0 & less than depth/2
Extra settings:
3. Specify the top reinforcement
No. bars
Bar diameter mm
Cover (to top) mm
Enter cover greater than 0 & less than depth/2
4. Reinforcement properties:
Steel strength   fyk MPa
Enter strength greater than 0 & less than 700MPa
Cover to edges   mm
Enter cover greater than 0 & less than width/2

Your concrete section

Reinforcement spacing
Top bar spacing: mm
Bottom bar spacing: mm
Minimum allowable top bar spacing: mm
Minimum allowable bottom bar spacing: mm

Reinforcement area
Reinforcement area top: mm2
Reinforcement area bottom: mm2
Total reinforcement: mm2 (%)
Min reinforcement limit: mm2 (%)
Max reinforcement limit: mm2 (%)
Warnings:
❌ Top bars seem too close.
❌ Bottom bars seem too close.
❌ Cover to the top seems too little, try >30mm.
❌ Cover to the bottom seems too little, try >30mm.
❌ Cover to the sides seems too little, try >30mm.
❌ Check your reinforcement area is within max & min limits.

M-N Interaction Chart

Automatically test your section by entering applied loads.
Bending Med,y kNm
Enter moment greater than 0.
Axial Ned kN
Only axial compression is considered.
Shear Ved kN
Enter shear greater than 0.

Prediction Results

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Ultimate limit state
ULS result
M-N utilisation %
Shear analysis
Serviceability limit state
SLS result
Assumed crack limit 0.3mm
Short term crack width mm
Long term crack width mm
d
mm
x
mm
es1 es2 σ's1
N/mm2
σ's2
N/mm2
M1
Nmm
M2
Nmm
M3
Nmm
M
kNm
N
kNm

Calculation validation