Shaft Resistance using Allowable Load and Safety Factor Calculator

✖Factor of Safety in Pile Foundation is the ratio of the ultimate capacity of the pile to the working load (the load the pile is designed to carry safely).ⓘ Factor of Safety in Pile Foundation [F_s]			+10% -10%
✖Allowable Load is the maximum working load that can be applied on the structure.ⓘ Allowable Load [P_allow]			+10% -10%
✖Toe Resistance is the capacity of the soil at the base or toe of a structure (such as a retaining wall, foundation, or slope) to resist sliding or overturning.ⓘ Toe Resistance [Q _bu]			+10% -10%

✖Shaft Resistance is the load-bearing capacity of deep foundations such as piles or drilled shafts, derived from the frictional resistance along the sides of the shaft.ⓘ Shaft Resistance using Allowable Load and Safety Factor [Q _su]

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Shaft Resistance using Allowable Load and Safety Factor Solution

STEP 0: Pre-Calculation Summary

Formula Used

Shaft Resistance = (Factor of Safety in Pile Foundation*Allowable Load)-Toe Resistance
Q _su = (F_s*P_allow)-Q _bu
This formula uses 4 Variables

Variables Used

Shaft Resistance - (Measured in Newton) - Shaft Resistance is the load-bearing capacity of deep foundations such as piles or drilled shafts, derived from the frictional resistance along the sides of the shaft.
Factor of Safety in Pile Foundation - Factor of Safety in Pile Foundation is the ratio of the ultimate capacity of the pile to the working load (the load the pile is designed to carry safely).
Allowable Load - (Measured in Newton) - Allowable Load is the maximum working load that can be applied on the structure.
Toe Resistance - (Measured in Newton) - Toe Resistance is the capacity of the soil at the base or toe of a structure (such as a retaining wall, foundation, or slope) to resist sliding or overturning.

STEP 1: Convert Input(s) to Base Unit

Factor of Safety in Pile Foundation: 2.8 --> No Conversion Required
Allowable Load: 10 Kilonewton --> 10000 Newton (Check conversion here)
Toe Resistance: 10.23 Kilonewton --> 10230 Newton (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q _su = (F_s*P_allow)-Q _bu --> (2.8*10000)-10230

Evaluating ... ...

Q _su = 17770

STEP 3: Convert Result to Output's Unit

17770 Newton -->17.77 Kilonewton (Check conversion here)

FINAL ANSWER

17.77 Kilonewton <-- Shaft Resistance

(Calculation completed in 00.020 seconds)

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Home » Engineering » Civil » Geotechnical Engineering » Pile Foundations » Axial Load Capacity of Single Piles » Shaft Resistance using Allowable Load and Safety Factor

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< Axial Load Capacity of Single Piles Calculators

Allowable Load using Safety Factors

LaTeX Go Allowable Load = (Shaft Resistance/Factor of Safety F1)+(Toe Resistance/Factor of Safety F2)

Shaft Resistance using Allowable Load and Safety Factor

LaTeX Go Shaft Resistance = (Factor of Safety in Pile Foundation*Allowable Load)-Toe Resistance

Allowable Load for given Safety Factor

LaTeX Go Allowable Load = (Shaft Resistance+Toe Resistance)/Factor of Safety in Pile Foundation

Pile Capacity

LaTeX Go Pile Capacity = Shaft Resistance+Toe Resistance

Shaft Resistance using Allowable Load and Safety Factor Formula

LaTeX Go

Shaft Resistance = (Factor of Safety in Pile Foundation*Allowable Load)-Toe Resistance
Q _su = (F_s*P_allow)-Q _bu

What is Allowable Load?

Allowable Load is the maximum working load that can be applied on the pile without the fear of failure.

How to Calculate Shaft Resistance using Allowable Load and Safety Factor?

Shaft Resistance using Allowable Load and Safety Factor calculator uses Shaft Resistance = (Factor of Safety in Pile Foundation*Allowable Load)-Toe Resistance to calculate the Shaft Resistance, The Shaft Resistance using Allowable Load and Safety Factor formula is defined as the load resisted by the pile's shaft, considering allowable load and safety factor. Shaft Resistance is denoted by Q _su symbol.

How to calculate Shaft Resistance using Allowable Load and Safety Factor using this online calculator? To use this online calculator for Shaft Resistance using Allowable Load and Safety Factor, enter Factor of Safety in Pile Foundation (F_s), Allowable Load (P_allow) & Toe Resistance (Q _bu) and hit the calculate button. Here is how the Shaft Resistance using Allowable Load and Safety Factor calculation can be explained with given input values -> 0.01777 = (2.8*10000)-10230.

FAQ

What is Shaft Resistance using Allowable Load and Safety Factor?

The Shaft Resistance using Allowable Load and Safety Factor formula is defined as the load resisted by the pile's shaft, considering allowable load and safety factor and is represented as Q _su = (F_s*P_allow)-Q _bu or Shaft Resistance = (Factor of Safety in Pile Foundation*Allowable Load)-Toe Resistance. Factor of Safety in Pile Foundation is the ratio of the ultimate capacity of the pile to the working load (the load the pile is designed to carry safely), Allowable Load is the maximum working load that can be applied on the structure & Toe Resistance is the capacity of the soil at the base or toe of a structure (such as a retaining wall, foundation, or slope) to resist sliding or overturning.

How to calculate Shaft Resistance using Allowable Load and Safety Factor?

The Shaft Resistance using Allowable Load and Safety Factor formula is defined as the load resisted by the pile's shaft, considering allowable load and safety factor is calculated using Shaft Resistance = (Factor of Safety in Pile Foundation*Allowable Load)-Toe Resistance. To calculate Shaft Resistance using Allowable Load and Safety Factor, you need Factor of Safety in Pile Foundation (F_s), Allowable Load (P_allow) & Toe Resistance (Q _bu). With our tool, you need to enter the respective value for Factor of Safety in Pile Foundation, Allowable Load & Toe Resistance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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