RC Beam Design Calculator
The RC Beam Design Calculator checks a reinforced-concrete beam's moment capacity and demand-capacity ratio against NSCP/ACI. Example: for a 6 m RC beam under a 150 kN·m factored moment, Moment capacity φMn = 188.96 kN·m, Demand/capacity = 0.79, Steel area = 1256.6 mm² (per NSCP 2015 Vol.1 | AISC 360-22 | ACI 318-19 | ASCE 7-22).
How it works
Computed from your inputs per NSCP 2015 Vol.1 | AISC 360-22 | ACI 318-19 | ASCE 7-22.
Worked example (Mechanical & Machine Design)
Inputs: a 6 m RC beam under a 150 kN·m factored moment.
| Result | Value |
|---|---|
| Moment capacity φMn | 188.96 kN·m |
| Demand/capacity | 0.79 |
| Steel area | 1256.6 mm² |
Computed live by WorkHive's calculation engine; standard: NSCP 2015 Vol.1 | AISC 360-22 | ACI 318-19 | ASCE 7-22.
How to use this calculator
- Enter the figures for the duty you are sizing: the worked example below uses a 6 m RC beam under a 150 kN·m factored moment.
- The calculator returns Moment capacity φMn, Demand/capacity, Steel area, computed per NSCP 2015 | ACI 318.
- Check the worked example to confirm the method matches how you would do it by hand, then run your own numbers in the interactive tool.
FAQ
What is a reinforced concrete beam design calculator NSCP?
The RC Beam Design Calculator is a free online tool that computes checks a reinforced-concrete beam's moment capacity and demand-capacity ratio against NSCP/ACI. It shows the formula and a fully worked example so you can check the method, not just the number.
How is it calculated?
The result is computed from your inputs following NSCP 2015 | ACI 318. The worked example on this page shows a real computation with real numbers.
Is the calculator free?
Yes. WorkHive's engineering calculators are free to use, no sign-up needed for the tools. WorkHive is a free, offline-first maintenance platform built for Philippine industrial plants.
Run it on your own numbers
Open the interactive RC Beam Design Calculator in WorkHive: free, no sign-up needed for the calculators.