Fx Copy
LaTeX Copy
Axial Load Capacity is defined as the maximum load along the direction of the drive train. Check FAQs
Pu=Φ((.85f'cba)+(A'sfy)-(Asfs))
Pu - Axial Load Capacity?Φ - Resistance Factor?f'c - 28-Day Compressive Strength of Concrete?b - Width of Compression Face?a - Depth Rectangular Compressive Stress?A's - Area of Compressive Reinforcement?fy - Yield Strength of Reinforcing Steel?As - Area of Tension Reinforcement?fs - Steel Tensile Stress?

Axial Load Capacity of Short Rectangular Members Example

With values
With units
Only example

Here is how the Axial Load Capacity of Short Rectangular Members equation looks like with Values.

Here is how the Axial Load Capacity of Short Rectangular Members equation looks like with Units.

Here is how the Axial Load Capacity of Short Rectangular Members equation looks like.

680.0021Edit=0.85Edit((.8555Edit5Edit10.5Edit)+(20Edit250Edit)-(15Edit280Edit))
You are here -
HomeIcon Home » Category Engineering » Category Civil » Category Columns » fx Axial Load Capacity of Short Rectangular Members

Axial Load Capacity of Short Rectangular Members Solution

Follow our step by step solution on how to calculate Axial Load Capacity of Short Rectangular Members?

FIRST Step Consider the formula
Pu=Φ((.85f'cba)+(A'sfy)-(Asfs))
Next Step Substitute values of Variables
Pu=0.85((.8555MPa5mm10.5mm)+(20mm²250MPa)-(15mm²280MPa))
Next Step Convert Units
Pu=0.85((.8555MPa0.005m0.0105m)+(20mm²250MPa)-(15mm²280MPa))
Next Step Prepare to Evaluate
Pu=0.85((.85550.0050.0105)+(20250)-(15280))
Next Step Evaluate
Pu=680.00208621875N
LAST Step Rounding Answer
Pu=680.0021N

Axial Load Capacity of Short Rectangular Members Formula Elements

Variables
Axial Load Capacity
Axial Load Capacity is defined as the maximum load along the direction of the drive train.
Symbol: Pu
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Resistance Factor
The Resistance Factor accounts for the possible conditions that the actual fastener strength may be less than the calculated strength value. It is given by AISC LFRD.
Symbol: Φ
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
28-Day Compressive Strength of Concrete
The 28-Day Compressive Strength of Concrete is the average compressive strength of concrete specimens that have been cured for 28 days.
Symbol: f'c
Measurement: StressUnit: MPa
Note: Value should be greater than 0.
Width of Compression Face
Width of Compression Face is the measurement or extent of something from side to side.
Symbol: b
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Depth Rectangular Compressive Stress
Depth Rectangular Compressive Stress is defined as the depth of equivalent rectangular compressive-stress distribution, in(mm).
Symbol: a
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Area of Compressive Reinforcement
The Area of Compressive Reinforcement is the amount of steel required in the compression zone.
Symbol: A's
Measurement: AreaUnit: mm²
Note: Value should be greater than 0.
Yield Strength of Reinforcing Steel
The Yield Strength of Reinforcing Steel is the maximum stress that can be applied before it begins to change shape permanently. This is an approximation of the elastic limit of the steel.
Symbol: fy
Measurement: StressUnit: MPa
Note: Value should be greater than 0.
Area of Tension Reinforcement
The Area of Tension Reinforcement is the space occupied by the steel in order to impart tensile strength to the section.
Symbol: As
Measurement: AreaUnit: mm²
Note: Value should be greater than 0.
Steel Tensile Stress
Steel Tensile Stress is defined as the stress in the steel under tension.
Symbol: fs
Measurement: StressUnit: MPa
Note: Value should be greater than 0.

Other Formulas to find Axial Load Capacity

​Go Ultimate Strength for Symmetrical Reinforcement
Pu=0.85f'cbdPhi((-Rho)+1-(e'd)+((1-(e'd))2)+2Rho((m-1)(1-(d'd))+(e'd)))

Other formulas in Ultimate Strength Design of Concrete Columns category

​Go Column Ultimate Strength with Zero Eccentricity of Load
P0=0.85f'c(Ag-Ast)+fyAst
​Go Yield Strength of Reinforcing Steel using Column Ultimate Strength
fy=P0-0.85f'c(Ag-Ast)Ast

How to Evaluate Axial Load Capacity of Short Rectangular Members?

Axial Load Capacity of Short Rectangular Members evaluator uses Axial Load Capacity = Resistance Factor*((.85*28-Day Compressive Strength of Concrete*Width of Compression Face*Depth Rectangular Compressive Stress)+(Area of Compressive Reinforcement*Yield Strength of Reinforcing Steel)-(Area of Tension Reinforcement*Steel Tensile Stress)) to evaluate the Axial Load Capacity, The Axial Load Capacity of Short Rectangular Members formula is defined as the maximum load along the direction of the drive train. Axial Load Capacity is denoted by Pu symbol.

How to evaluate Axial Load Capacity of Short Rectangular Members using this online evaluator? To use this online evaluator for Axial Load Capacity of Short Rectangular Members, enter Resistance Factor (Φ), 28-Day Compressive Strength of Concrete (f'c), Width of Compression Face (b), Depth Rectangular Compressive Stress (a), Area of Compressive Reinforcement (A's), Yield Strength of Reinforcing Steel (fy), Area of Tension Reinforcement (As) & Steel Tensile Stress (fs) and hit the calculate button.

FAQs on Axial Load Capacity of Short Rectangular Members

What is the formula to find Axial Load Capacity of Short Rectangular Members?
The formula of Axial Load Capacity of Short Rectangular Members is expressed as Axial Load Capacity = Resistance Factor*((.85*28-Day Compressive Strength of Concrete*Width of Compression Face*Depth Rectangular Compressive Stress)+(Area of Compressive Reinforcement*Yield Strength of Reinforcing Steel)-(Area of Tension Reinforcement*Steel Tensile Stress)). Here is an example- 680.0021 = 0.85*((.85*55000000*0.005*0.0105)+(2E-05*250000000)-(1.5E-05*280000000)).
How to calculate Axial Load Capacity of Short Rectangular Members?
With Resistance Factor (Φ), 28-Day Compressive Strength of Concrete (f'c), Width of Compression Face (b), Depth Rectangular Compressive Stress (a), Area of Compressive Reinforcement (A's), Yield Strength of Reinforcing Steel (fy), Area of Tension Reinforcement (As) & Steel Tensile Stress (fs) we can find Axial Load Capacity of Short Rectangular Members using the formula - Axial Load Capacity = Resistance Factor*((.85*28-Day Compressive Strength of Concrete*Width of Compression Face*Depth Rectangular Compressive Stress)+(Area of Compressive Reinforcement*Yield Strength of Reinforcing Steel)-(Area of Tension Reinforcement*Steel Tensile Stress)).
What are the other ways to Calculate Axial Load Capacity?
Here are the different ways to Calculate Axial Load Capacity-
  • Axial Load Capacity=0.85*28-Day Compressive Strength of Concrete*Width of Compression Face*Distance from Compression to Tensile Reinforcement*Capacity Reduction Factor*((-Area Ratio of Tensile Reinforcement)+1-(Eccentricity by Method of Frame Analysis/Distance from Compression to Tensile Reinforcement)+sqrt(((1-(Eccentricity by Method of Frame Analysis/Distance from Compression to Tensile Reinforcement))^2)+2*Area Ratio of Tensile Reinforcement*((Force Ratio of Strengths of Reinforcements-1)*(1-(Distance from Compression to Centroid Reinforcment/Distance from Compression to Tensile Reinforcement))+(Eccentricity by Method of Frame Analysis/Distance from Compression to Tensile Reinforcement))))OpenImg
Can the Axial Load Capacity of Short Rectangular Members be negative?
No, the Axial Load Capacity of Short Rectangular Members, measured in Force cannot be negative.
Which unit is used to measure Axial Load Capacity of Short Rectangular Members?
Axial Load Capacity of Short Rectangular Members is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Axial Load Capacity of Short Rectangular Members can be measured.
Copied!