Column Construction Calculator vs Simplex Optima

Column Construction Calculator contains 35 calculators to measure and calculate different column and civil engineering parameters. NEW — Built-in Reference Library Look up standard material properties and auto-fill them straight into any calculator: • Steel — ASTM grades (A36, A992 W-shapes, A572 Grade 50, A500 Grade B & C HSS, A53 Grade B Pipe) with Yield Strength (Fy) and Modulus of Elasticity (E) • Aluminum — common structural aluminum grades • Concrete — ACI mix classes from 2500 psi to 10000 psi with compressive strength (f'c), modulus (Ec) and β₁ factor Available in Metric (SI) and Imperial (USCS) Units Column Calculator contains the following 35 Calculators: • Critical Buckling Load - Column Pivoted at Both Ends (Euler's Formula) • Critical Buckling Load - One End Fixed and Other End Rounded (Euler's Formula) • Critical Buckling Load - Both Ends Fixed (Euler's Formula) • Critical Buckling Load - One End Fixed and Other End Free (Euler's Formula) • Nominal Bearing Strength of Concrete (Column Base Plate Design) • Area of Base Plate for Factored Load • Length of Rectangular Base Plate (Wide-Flange Column) • Width of Base Plate - Parallel to the Flanges • Projection of Base Plate beyond the Flange and Parallel to the Web (m) • Projection of Base Plate beyond the Edges of the Flange and Perpendicular to the Web (n) • Equivalent Cantilever Dimension (n') • Column Base Plate Design Value (Lambda) • Column Base Plate Design Value (X) • Thickness of Base Plate (m) • Thickness of Base Plate (n) • Thickness of Base Plate (Lambda n') • Area of the Column • Allowable Bearing Pressure on Support (Base Plate occupies Full Area of Support) • Allowable Bearing Pressure on Support (Base Plate covers less than Full Area of Support) • Wall Thickness of Steel Pipe (Width of Face of Rectangular Section) • Wall Thickness of Steel Pipe (Outside Diameter of Circular Section) • Design Strength of Axially Loaded Composite Column • Design Strength of Concrete (Direct Bearing) • Effective Length Factor • Slenderness Ratio • Critical Buckling Load • Elastic Critical Buckling Load • Allowable Design Load – Aluminum Columns • Allowable Design Load – Aluminum Columns (Johnson's Equation – Straight Line) • Allowable Design Load – Aluminum Columns (Johnson's Equation – Squared Parabolic) • Ultimate Strength of Column - Zero Eccentricity of Load • Axial Load Capacity – Short Rectangular Members • Balanced Moment • Eccentricity – Balanced Condition • Eccentricity – Slender Columns

The general form of an optimization problem comprises a linear function of variables, also called "objective function" and a number of constraint inequalities. The app can facilitate a maximisation as well as minimisation problem bearing up to 7 variables and up to 6 contraint inequalities. The solution algorithm is implemented by constructing and manipulating the Simplex tableau before calculating the parameters for which the maximum value of the objective function is obtained.