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Pier Footing Size Calculator Online

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The Pier Footing Size Calculator serves as a crucial tool in construction and engineering, aiding in the determination of the required size of footings for supporting piers. It calculates the footprint area necessary to distribute the load exerted on the pier effectively. By inputting specific values such as the total load, soil bearing capacity, and safety factor, this calculator generates the area needed for the footing to ensure stability and prevent settling or structural issues.

Formula

The formula used by the Pier Footing Size Calculator is as follows:

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Footprint Area = Load / (Soil Bearing Capacity × Safety Factor)

Where:

  • Load: Represents the total load applied on the pier, measured in pounds or Newtons.
  • Soil Bearing Capacity: Denotes the allowable bearing capacity of the soil, typically measured in pounds per square foot or kiloNewtons per square meter.
  • Safety Factor: This factor accommodates uncertainties and safety margins, usually ranging between 1.5 to 3.

General Terms for Quick Reference

To aid users in understanding and utilizing this tool more effectively, here are some general terms or units often associated with pier footing calculations:

TermDescription
LoadThe force or weight exerted on the pier.
Soil Bearing CapacityThe maximum pressure the soil can support.
Safety FactorA factor accounting for uncertainties in the calculation.

Example of Pier Footing Size Calculator

Let’s consider a scenario where a construction project requires determining the footing size for a pier. Suppose the total load on the pier is 20,000 pounds, the soil bearing capacity is 4,000 pounds per square foot, and a safety factor of 2 is deemed appropriate.

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By plugging these values into the Pier Footing Size Calculator’s formula:

Footprint Area = 20,000 / (4,000 × 2) = 2.5 square feet

Therefore, a footing area of 2.5 square feet would be necessary to adequately support the given load under the specified conditions.

Most Common FAQs

Q1: How do I determine the total load on the pier?

The total load can be calculated by summing up the weights of all loads acting on the pier, including the structure it supports, materials, and additional applied forces.

Q3: Can the calculator handle metric units for load and soil bearing capacity?

Yes, the calculator is versatile and can handle both metric and imperial units, facilitating ease of use for different users.

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