Column Construction Calculator vs PIDSimLab

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

PIDSimLab — PID Simulator PIDSimLab is a lightweight PID simulator built to help you understand and practice PID tuning. Adjust Kp, Ki, and Kd and instantly see how the system responds on a live step-response chart. Save traces and compare runs to find stable, fast, and smooth settings. Key features PID tuning: Edit Kp / Ki / Kd and observe the response immediately Time duration control: Adjust the simulation duration to observe system behavior across different time scales Start / Stop control: Run and pause simulations with a tap Test profiles: Try preset scenarios to speed up experimentation Real-time charts: Visualize the response curve as it evolves Save traces: Store runs and compare results across different settings Simple UI: Designed for quick learning and practical use PIDSimLab is useful for students, hobbyists, and engineers who want a clean, focused environment for exploring PID behavior.