concreteproperties is a python package that can be used to calculate the section properties of arbitrary reinforced concrete sections. concreteproperties can calculate gross, cracked and ultimate properties. It can perform moment curvature analyses and generate moment interaction and biaxial bending diagrams. On top of this, concreteproperties can also generate pretty stress plots!

Here's an example of some of the non-linear output concreteproperties can generate:

Installation

For more detailed installation instructions, refer to the documentation.

pip install concreteproperties

Documentation

concreteproperties is fully documented including examples and a fully documented API. The documentation can found at https://robbievanleeuwen.github.io/concrete-properties.

Contributing

We welcome anyone interested in contributing to concreteproperties, whether it be through submitting bug reports, feature requests or pull requests. Please read the contributing guide prior to contributing.

Current Capabilities

Analysis Types

• Reinforced Concrete
• Steel-Concrete Composite
• Prestressed Concrete

Material Properties

• Concrete material
  • Service stress-strain profiles
    • Linear profile
    • Linear profile (no tension)
    • Eurocode non-linear
    • Modified Mander non-linear profile (confined & unconfined concrete)
  • Ultimate stress-strain profiles
    • Rectangular stress block
    • Bilinear stress-strain profile
    • Eurocode parabolic
  • Flexural tensile strength
• Steel material
  • Stress-strain profiles
    • Elastic-plastic
    • Elastic-plastic (with hardening)
• Strand material
  • Stress-strain profiles
    • Elastic-plastic (with hardening)
    • PCI journal (1992) non-linear

Gross Section Properties

• Cross-sectional areas (total, concrete, steel, strand)
• Axial rigidity
• Cross-section mass
• Cross-section perimeter
• First moments of area
• Elastic centroid
• Global second moments of area
• Centroidal second moments of area
• Principal axis angle
• Principal second moments of area
• Centroidal section moduli
• Principal section moduli
• Prestressed Actions

Service Analysis

• Cracking moment
• Cracked area properties
• Moment-curvature diagram

Ultimate Analysis

• Ultimate bending capacity
• Squash load
• Tensile load
• Moment interaction diagrams
  • M-N curves
  • Biaxial bending curve

Stress Analysis

• Uncracked stresses
• Cracked stresses
• Service stresses
• Ultimate stresses

Design Codes

• Design code modules
  • AS3600
  • AS5100
  • NZS3101 & NZSEE C5 Assessment Guidelines

Disclaimer

concreteproperties is an open source engineering tool that continues to benefit from the collaboration of many contributors. Although efforts have been made to ensure the that relevant engineering theories have been correctly implemented, it remains the user's responsibility to confirm and accept the output. Refer to the license for clarification of the conditions of use.