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Bearing Capacity Calculator - Terzaghi
Bearing capacity
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Weight to Volume relationships in soils
Soil Sample
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Mohr's Circle for 2D Stresses
2D Mohr's
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3D Mohr's Circle
3D Mohrs
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Wood - Densities of Various Species and Mass Calculator
Wood - Densities of Various Species
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Determine the Length Of a Side
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Equilateral Triangle Calculator
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Right Triangle Calculator
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Heron's Formula Calculator
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Calculate Arc Length and Sector Area
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Circle Dimension Calculator
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Cube Surface Area & Volume Calculator
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Dodecahedron: Surface Area & Volume
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Volume & Surface Area of Cylinder Calculator
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Calculate Sphere Surface Area And Volume
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Prime Number Spreadsheet
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Poisson Distribution Calculator
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Harmonic Mean Calculator
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Tangential Angle Method for setting out circular curves
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Harmonic Number Calculator
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Slope and Gradient Calculator
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Euler Line Calculator
Euler Line
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Relativity and Quantum Mechanics
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Energy Mass Equivalency
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Slenderness Ratio Calculator
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Moment of Inertia Calculators
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Moment of Inertia Calculator: Solid Rectangular Section
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Moment of Inertia Calculator: Solid Circular Section
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Moment of Inertia Calculator: I Beam
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Moment of Inertia Calculator: T Section
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Moment of Inertia Calculator: Angle Section
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Moment of Inertia Calculator: Channel Section
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Moment of Inertia Calculator: Triangular Section
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Moment of Inertia Calculator: Trapezoidal Area Section
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Hooke's Law
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Radius of Gyration in Structural Engineering
aisc-shapes-database-v160-all_sects
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Centre of Mass Calculator
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Centre of Gravity Calculator
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Stress Calculator
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Elastic Section Modulus Calculator
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C-Channel Shape Elastic Section Modulus Calculator
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Diamond Shape Elastic Section Modulus Calculator
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I Beam Elastic Section Modulus Calculator
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Mass Moment of Inertia
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Solid Cylinder - Central Axis
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Solid Cylinder - Diameter
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Cuboid
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Hoop - Central Axis
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Rod - Centre Normal Axis
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Regular Tetrahedron
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Regular Octahedron
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Right Solid Circular Cone
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Triangle Shaft Maximum Allowable Torsion
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Shear Modulus Calculator
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Relationship between Young's modulus, bulk modulus and Poisson’s ratio
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Steel Wire Tension Calculator
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Poisson Ratio Calculator
Poisson's Ratio
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Mass Timber Self-weight Calculator
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Wood Density Calculator
wood information
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Wood Moisture Content Calculator
wood moisture calc
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Wood Specific Gravity Calculator
wood information
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wood information
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Dynamics
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Potential Energy Calculator
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Freefall Height Calculator
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Freefall Velocity Calculator
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Acceleration vs. Velocity equations
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Rotational Kinetic Energy Calculator
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Angular Velocity Calculator
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Work Calculator
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Impulse and Momentum Calculator
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Force Due To Acceleration
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Kinetic Energy Calculator
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Pendulum Calculator
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Simple Harmonic Motion Calculator
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Frequency of a Simple Harmonic Motion Calculator
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Time Period of a Simple Harmonic Motion Calculator
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Damped Harmonic Motion Energy Loss Calculator
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Centripetal Force Calculator
Centripetal Force-Acceleration Calculator
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Velocity of a Simple Harmonic Motion Calculator
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Longitudinal Vibration of Rods Calculator
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Dunkerley’s Method for Beam Vibration Calculator
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Acceleration of a Simple Harmonic Motion Calculator (related to the displacement)
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Angular Acceleration Calculator
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Acceleration of a Simple Harmonic Motion Calculator
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Average Angular Acceleration Calculator
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Total Harmonic Distortion (THD) Calculator
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Displacement of Harmonic Motion Calculator
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Astrophysics
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Orbital Mechanics Calculator
Orbital Mechanics
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Kepler's First Law Calculator
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Kepler's Third Law Calculator
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Y-coordinate of Keplerian Orbit
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Gravitational Force Calculator
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Acoustics and Optics
Thermodynamics and Fluid Dynamics
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Specific Heats of Solids and Heat Transfer Calculator
Solids - Specific Heats
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Pressure Calculator
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Bernoulli Calculator
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Bernoulli Equation Calculator: Volume Flow Rate
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Bernoulli Mass Flow Rate Calculator
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Hot Air Balloons - Calculating Lifting Force
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Froude Number Calculator: Open Channel Flow
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Air Density and Specific Weight Calculator
Density and Specific Weight
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Total and Partial Pressure Calculator
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Magnetic Prandtl Number Calculator
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Reynolds Number Calculator
Code source (3)
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Code source (1)
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Magnetic Reynolds Number Calculator for eddy current braking
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Magnetic Reynolds Number Calculator
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Knudsen Number Calculator
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Reynolds Number Calculator (for motion of a viscous fluid)
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Péclet Number Calculator
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Péclet number (for heat transfer using Reynolds number)
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Péclet number (for mass transfer using Reynolds number)
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Richardson Number Calculator
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Bejan Number Calculator
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Drag Force and Drag Coefficient Calculator
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Density, Specific Weight and Specific Gravity Calculator
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Mach Wave Angle Calculator
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Electrical Engineering
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Ohm's Law To Calculate Voltage In a Circuit
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Generator Load Current Calculator
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Transformer Full Load Current and Turns Ratio Calculator
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Short Circuit Current Calculation For Cable AS/NZS 3008
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Wire Voltage Drop Calculator to AS/NZS 3008
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AC Induction Motor Speed Calculator
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AC Current Calculator (3Ph, 1Ph)
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Electric Motor Torque Calculator
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Electricity Bill Calculator
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Arc Flash Calculator
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RLC Circuit Calculator
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Maximum Demand Calculator to AS/NZS 3000
MAXIMUM DEMAND CALC - AS3000
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Energy Optimisation Calculator
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Construction Calculations
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Truck Bed Volume and Weight Calculator
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Calculate Cement, Sand & Aggregate Quantity in Concrete
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Water Tank Capacity Calculator
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Rebar Weight Calculator
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Civil Engineering
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Bushfire Attack Level Calculator to AS 3959-2018
Bushfire Attack Level Calculator to AS 3959-2018
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Road Base Calculator
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Structural Engineering
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Beam Analysis Calculators
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Single-Span Beam Analysis
Single-Span Beam Analysis
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Multi-Span Beam Analysis Tool
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Column Buckling Calculator
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AS/NZ
Timber Joints to AS1720.1
Timber Screwed Joint Designer to AS 1720.1
Timber Nailed Joint Designer to AS 1720.1
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Concrete Beam Designer to AS3600
CT - RC Beam Design to AS3600
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Bolt Group Calculator to AS 4100
Bolt Group - AS4100 - Fixed
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Fillet Weld Group Calculator to AS4100
Weld Group - AS4100 (Example)
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Steel Beam and Column Designer to AS4100
CT - Standard Steel Section Capacity
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Timber Beam Calculator to AS1720.1
CT - Timber Member Design to AS17201
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Timber Column Calculator to AS1720.1
CT - Timber Column Design to AS17201
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Concrete Slab-on-grade Designer to AS3600
Concrete Slab on Grade Design to AS3600-2018
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Concrete Rectangular Footing Designer to AS3600
Concrete Footing Design to AS3600-2018
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Concrete Column Designer to AS3600
CT - RC Column Design to AS3600
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Neutral Axis Calculator: RC Section to AS3600
Reinforcement Development Length Calculator to AS3600
Concrete Punching Shear Calculator to AS3600
231204-AS3600-slab_punching_shear
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Truss Analysis and Design
2D truss input
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Timber Strut Designer to AS1720.1
CT - Timber Column Design to AS17201
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Concrete Wall to AS3600
Concrete Slabs to AS3600
Concrete Two-way Slab Calculator to AS3600
Concrete Flat Slab Calculator to AS3600
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Design Guide: Concrete Slabs to AS3600
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Concrete One-way Slab Calculator to AS3600
Steel Web Plate Connection to AS4100
Concrete Shear Wall to AS3600
Concrete Retaining Wall to AS4678
Steel Moment End Plate Connection to AS4100
Steel Flexible End Plate Connection to AS4100
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Europe
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Seismic Spectrum Calculator to EC8
Eurocode_8
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Steel Section Designer to EC3
Eurocode_Section_Analysis_SingleForces_00
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Timber Beam Calculator to EC5
Design+Template+-+Timber+-+Rafters+and+joists+A1
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Elastic Critical Moment Calculator for Lateral Torsional Buckling to EC3
Eurocode_Section_Analysis_Combined_00
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Steel Base Plate Designer to EC3
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Concrete One-Way Slab Designer to EC2
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Concrete Corbel Designer to EC2
Design of Corbel based on Eurocode_etc_rev1
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US
Steel Beam and Column Designer to AISC 360
CT - Steel Beam and Column Design to AISC
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Wind Loading Calculator to ASCE 7-10
Wind Load (Low-Rise)
ASCE710W_v2_4
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Wind Load (Open Building)
ASCE710W_v2_4
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Wind Load (Roof Components & Cladding)
ASCE710W_v2_4
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Wind Load (Wall Components & Cladding)
ASCE710W_v2_4
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Wind Load (Any Height)
ASCE710W_v2_4
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ASCE710W_v2_4
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Steel Baseplate Designer to AISC 360
baseplate
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Concrete Slab-on-grade Calculator to ACI 360R-10
CONCRETE SLAB ON GRADE - CT
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Concrete Rectangular Beam Calculator to ACI 318-19 (IMP)
RC Rectangular Beams
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Concrete Rectangular Spread Footing Designer to ACI
Purlin and Girts Size Calculator to AISI
Concrete One-way Slab Designer to ACI318
CT - RC Slab Design to ACI318
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Concrete Column P-M Diagram Calculator to ACI
CLT Properties Calculator to ANSI/APA PRG 320
CLT Properties Data
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Design Response Spectrum to ASCE 7
Composite Slab to ACI 318
Composite Beam to AISC 360
Concrete Shear Wall to ACI 318
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Beam Analysis using Anastruct
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Concrete Column P-M Diagram Calculator
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Beam Analysis using Macaulay's Theorem
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Beam Analysis Calculator for simply supported beam with point moment
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Beam Analysis Calculator for cantilever beam with point moment
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Beam Analysis Calculator for simply supported beam with trapezoidal load
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Beam Analysis Calculator for simply supported beam with triangular load
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Beam Analysis Calculator for cantilever beam with triangular load
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Beam Analysis Calculator for cantilever beam with point load
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Beam Analysis Calculator for simply supported beam with UDL
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Beam Analysis Calculator for cantilever beam with UDL
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Beam Analysis Calculator for cantilever beam with trapezoidal load
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Beam Analysis Calculator for beam with multiple loads
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Beam Analysis Calculator for simply supported beam with point load
Code source (1)
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2D Truss Analysis using OpenSeesPy
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Sample Project
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Beam Analysis Calculator - Beam VC
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Concrete Column Designer to AS3600
CT - RC Column Design to AS3600
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Concrete Beam Designer to AS3600 - Beam VC
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Concrete Rectangular Footing Designer to AS3600
Concrete Footing Design to AS3600-2018
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Mechanical Engineering
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Air Duct Velocity Calculator
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Buoyancy Force Calculator
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Heat Transfer Calculator
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Static Pressure Calculator
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Dynamic Pressure Calculator
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Room Ventilation Calculator: Area Method
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Mach Number Calculator
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Volumetric Efficiency Calculator
Volumetric Efficiency of an ICE
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Duct Pressure Drop Calculator
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Room ventilation calculator: Occupancy Method
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Log Mean Temperature Difference (lmtd) Calculator
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Log Mean Temperature Difference in Counter Flow Heat Exchangers
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Engineering
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General
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Engineering Calculation Template – Detailed Guide
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No more engineers? Understanding Australia’s engineering skills shortage
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Quality control in engineering calculations using Units
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Engineering Design Guide Articles
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Design Guide: Trusses
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Common Truss Types
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Truss Analysis
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Steps for Designing Truss Members to Australian Standards
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Design Guide: Shear Wall to Australian Standards
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Design Guide: Shear Wall to ACI Standards
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Design Guide: Pad Footings
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Design Guide: Purlins and Girts for Structural Support in Buildings
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Design Guide: Structural Load Calculations
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Design Guide: RC Staircase
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Design Guide: Limit State Design of steel members to AS4100
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Design Guide: Steel Bracing Systems
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Steps for Designing Steel Bracing - General Guide
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Steel Bracing Design For Limit State
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Steps for Designing Steel Bracing to Australian Standards
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Design Guide: Concrete Footing to AS3600
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Design Guide: Timber Members
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Structural Engineering Articles
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Steel Design Rules of Thumb for Structural Engineers
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Cement 101: What you need to know about this major construction material and it’s alternatives
New Microsoft Excel Worksheet
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High strength structural steel and Its Properties
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Essential Knowledge for Structural Engineers: Skills and Expertise
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Australia's Top Stadiums: Engineer's Perspective
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OpenSeesPy vs ETABS: 2D Frame Modal Analysis Comparison
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Get started with OpenSees on CalcTree
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Electrical Engineering Articles
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Sustainable Materials in Civil Engineering
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Hempcrete: Building Smart, Green, and for the Future
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Sustainability and mass timber construction: top of mind and leading edge
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Top 5 Innovative & Sustainable Materials that should be mainstream in the construction industry
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Low Heat Cement 101 And Its Alternatives
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Embodied Carbon
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Physics
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Thermodynamics
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Intro to Thermodynamics
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Brayton Cycles
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Diesel Cycle
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Power Cycles: The Carnot and Otto Cycle
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Heat Engine
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Heat Engine Calculator
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Refrigerator
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Refrigerator Calculator
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Heat Pumps
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Heat Pump Calculator
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Types of Pulleys & Calculators
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Logic Gates explained with calculators
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Matrix Algebra and its applications in Engineering and Physics
Matrix Algebra Operations
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Fundamentals
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Beam Analysis and Design Fundamentals
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Fundamentals: Newton’s 3 Laws of Motion
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Fundamentals: Second Moment of Inertia
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Energy–momentum relation
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Energy–momentum Relation Calculator
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Applications of Fourier Series in Signal Processing and Engineering
Fourier
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Construction
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Megaproject Spotlight: Constructing the World’s Longest Railway Tunnel
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Modernism & Mishaps in Mega Project Management
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Lessons from the Tacoma Bridge Collapse: Avoiding Historic Construction Failures
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Lessons from Historic Construction Failures: Tower of Pisa and Beyond
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Mathematics
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Partial derivatives
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Probability and Statistics, including Distributions and Hypothesis Testing
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17 Of The Most Important Equations You'll Ever Learn
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Vector Calculus and its Applications in Science
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Integral and Trigonometric Relationships
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The Rise of Generative AI And Its Challenges
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ChatGPT Challenges in Engineering Data Calculation
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Construction industry challenges: Common Data Environments
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Importance of data integration for the construction industry
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Why Cloud-Based Software is the Future of the Construction Industry
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Civil Engineering Software To Transform Your Calculations
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Transform Your Python Script into a Web App with CalcTree: A Step-by-Step Guide
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Streamlining Your Workflow: How to Connect Spreadsheets and Python Scripts with CalcTree
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Embedding Spreadsheet Values in Reports with CalcTree
Structural Embodied Carbon Calculation
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Transform Your Engineering Spreadsheets into Web Apps with CalcTree: A Step-by-Step Guide
CT - RC Column Design to AS3600
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Enhancing Civil Engineering Calculations in Chatbots with CalcTree API Integration
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a_basic_spreadsheet
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Book1
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Quick start Python
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Use Parameters with Python
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Units in Python
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Grasshopper
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Estados de Vigas de Concreto
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Bust Common Myths About Java Programming
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Tensile Strength and Capacity Control of the W-Shape Sections According to AISC 360-16
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Concrete Cylinder Strength Vs Cube Strength
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Earthquake Design Action Calculation
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Projectile motion
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This page provides some insight into the Pythagorean theorem, and provides some functions to help you calculate triangle dimensions - particularly side one and side two!
Calculation
Inputs
a
:3 m
c
:5 mOutputs
b
:4 m
Explanation
Using our Pythagorean theorem identity, we can easily rearrange to find one of the other side lengths, a or b.
a2+b2=c2
To determine the length of side b:
b2=c2−a2
Triangle side length