RKALC Structural Engineering

Column - Interaction Diagrams

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Inputs

Materials
f'c (N/mm²)
fy (N/mm²)
fys (N/mm²)
Geometry (mm)
Column Type
Short Dimension
Long Dimension
Cover to Centre
Effective Height
Rebar Dia (mm)
No of Bars - Short Dir.
No of Bars - Long Dir.
Total Reo
Loads (KN, m)
DL
LL
Ultimate N*
Weak Dir .Moments
Top Moment
Bot. Moment
Strong Dir. Moments
Top Moment
Bot. Moment

Weak Axis

Key Values

	Φ Mub	-		Φ Nub	-

	Nc	-		Φ Mu	-

	Km	-		Φ Nuo	-

	δ b	-		Φ Nt	-



Design Loads


	N*	-		N*/ BD	-

	M*	-		M/ BD²	-


Utlilisation= -

Strong Axis

Key Values

	Φ Mub	-		Φ Nub	-

	Nc	-		Φ Mu	-

	Km	-		Φ Nuo	-

	δ b	-		Φ Nt	-



Design Loads


	N*	-		N*/ BD	-

	M*	-		M/ BD²	-


Utllisation=-

Biaxial

Desgin Loads

	M* Weak =		-

	Φ Muo Weak =		-

	M* Strong =		-

	Φ Muo Strong =		-



	Alfa n =		-


	Plan of a quarter 3D interaction diagram, at the plane of applied load OF:		-


Bi Axial Ratio = -