ESEC

Design of RC Column

This web application evaluates safety of RC column under axial load and biaxial moments for:

1. Single Case: Assesses safety under one set of loading conditions (Pu, Mux, Muy).
or 2. Multiple Cases: Assesses safety under multiple sets of loading conditions (Pu, Mux, Muy).

Safety is evaluated using:

1. Capacity/Demand (C/D) Ratio: Similar to spColumn software. A 3D interaction diagram is plotted, and the nearest point to applied loading (ΦPu, ΦMux, ΦMuy) on the diagram is identified. Cases are safe if the C/D ratio > 1.0.
2. Capacity/Demand (C/D) Ratio Using ECP 203-2020 Simplified Method: Cases are safe if C/D ratio > 1.0.
3. Demand/Capacity (D/C) Ratio: Similar to ETABS software. A 3D interaction diagram is used to find nearest point to applied load (ΦPu, ΦMux, ΦMuy). Cases are safe if D/C ratio is < 1.0.

Input

Design Code

American: ACI 318-2019
Egyptian: ECP 203-2020
British: BS 8110-1997

Material Properties Concrete Strength, f'c (MPa):
Steel Strength, fy (MPa):

Concrete Dimensions Thickness, t (mm):
Width, b (mm):

Reinforcement

All Sides Equal

Data Number of bars, Nb:
Bar size, db (mm):

Equal Spacing

Sides Different

Concrete cover, cc (mm):

Loading One Load Case

Data Axial load, Pu (kN):
Moment, Mx (kN.m):
Moment, My (kN.m):

Multiple Load Cases

Data for 2D Interaction Diagram Plotting

Axial load (kN):
Angle (Mx, My) (Degrees):

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Status:

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This web application is developed by: Assoc. Prof. Ahmed Elansary, Faculty of Engineering, Cairo University

*ResearchGate

Check out validation examples

Check out the desktop version of the software

Any iquiries or suggestions for improvements should be submitted to: