Home Building Formulas

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Concepts

id description formula units
Stress in Beam Determines the internal forces within a beam stress = moment*distanceFromNeutralAxis/secondMomentOfArea NewtonPerSquareMeter
Shear Force in Beam Measures the force that causes parts of a material to slide past each other in opposite directions shearForce = ∫(dMoment/dx) dx Newton
Bending Moment in Beam Calculates the reaction induced in a structural element when an external force is applied, causing the element to bend bendingMoment = ∫(shearForce dx) NewtonMeter
Deflection of Beam Calculates the displacement of a point on the beam under load deflection = load*length^3 / (48*modulusOfElasticity*secondMomentOfArea) Meter
Load-Bearing Capacity Determines the maximum weight the structure can hold loadBearingCapacity = allowableStress * area Newton
Thermal Conductivity Measures the rate at which heat passes through a material heatTransfer = thermalConductivity * area * temperatureDifference / thickness WattPerMeterKelvin
R-Value Indicates the resistance of a material to heat flow rValue = thickness / thermalConductivity SquareMeterKelvinPerWatt
Heat Loss Calculates the total heat loss through a structure heatLoss = area * uValue * temperatureDifference Watt
Concrete Mix Design Determines the proportions of materials in concrete concreteMix = (cement : sand : aggregate : water) Ratio
Roof Slope Determines the pitch of the roof roofSlope = rise / run Ratio
Brick Calculation Estimates the number of bricks needed for a wall numberOfBricks = wallArea / brickArea Integer

Measures

Name Values Coverage Question Example Type Source SortIndex IsComputed IsRequired IsConceptDelimiter Crux
id 11 100% What is the ID of this concept? Stress in Beam string 1 false true true
description 11 100% A brief description of the formula's purpose in home building Determines the internal forces within a beam string 1.9 false
formula 11 100% The mathematical formula or equation stress = moment*distanceFromNeutralAxis/secondMomentOfArea string 1.9 false
units 11 100% The units of the result of the formula NewtonPerSquareMeter string 1.9 false