User Interfaces

• Graphical User Interface
• Command Prompt (batch mode)

Input File Formats

• pcaColumn/spColumn Binary Input (COL) File
• pcaColumn/spColumn Text Input (CTI) File

Material properties

• Concrete compressive strength and modulus of elasticity
• Maximum allowable compressive strength
• Rectangular stress block depth factor
• Ultimate compressive strain
• Yield strength
• Modulus of elasticity
• ASTM A615, ASTM A615M, CSA, G 30.18, prEN 10080, or user defined

Section Geometry

• Rectangular, circular, or irregular shapes
• Equally-spaced bars - rectangular or circular layout
• Rectangular layout with equal number of bars on each side
• Rectangular layout with a different number of bars on each side
• Irregular pattern
• Tied, spiral, or other (strength reduction factors may be modified)

Design Parameters

• Clear cover to bars or ties
• Bar spacing
• Minimum and maximum reinforcement