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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
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Wood - Densities of Various Species
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Determine the Length Of a Side
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Dodecahedron: Surface Area & Volume
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Calculate Sphere Surface Area And Volume
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Tangential Angle Method for setting out circular curves
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Energy Mass Equivalency
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Moment of Inertia Calculator: Channel Section
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Moment of Inertia Calculator: Triangular 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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Mass Moment of Inertia
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Solid Cylinder - Central Axis
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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's Ratio
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wood information
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wood moisture calc
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wood information
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wood information
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Potential Energy 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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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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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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AC Current Calculator (3Ph, 1Ph)
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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
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Column Buckling Calculator
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AS/NZ
Timber Joints to AS1720.1
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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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CT - Timber Column Design to AS17201
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Concrete Slab on Grade Design to AS3600-2018
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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
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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 Slabs to AS3600
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Design Guide: Concrete Slabs to AS3600
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Concrete One-way Slab Calculator to AS3600
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Concrete Retaining Wall to AS4678
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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
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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 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 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
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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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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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Log Mean Temperature Difference in Counter Flow Heat Exchangers
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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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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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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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Power Cycles: The Carnot and Otto Cycle
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Heat Engine
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Refrigerator
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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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Units in Python
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section properties with units
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Projectile motion
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Let's determine the member force and capacity of a strut in a timber truss.
- Select your truss geometry:
Geometry tags
- Select your truss applied loads:
Load tags
Here is your truss axial force diagram:
Can’t display the image because of an internal error. Our team is looking at the issue.
👉Note, red (negative) = compression, blue (positive) = tension
- Choose and define the strut you want to check:
- Struttag:12
- Length,l:1.80m
- Depth,d:75 mm
- Width,b:50 mm
Member tags
- Design check of your compression member:
- Axial load,N:-79kN
- Axial capacity,Nd,c:102kN
- Utilisationratio:78%
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