Home
Back
Formula Used:
| From: | To: |
Primary Shear Force on Bolt is defined as the force acting in a direction parallel to a surface or to a planar cross-section of the bolt in an eccentrically loaded bolted joint. It represents the direct shear component that each bolt experiences due to the applied load.
The calculator uses the formula:
Where:
Explanation: The imaginary force is distributed equally among all bolts in the joint to determine the primary shear force each bolt experiences.
Details: Accurate calculation of primary shear force is crucial for designing safe bolted connections, ensuring proper bolt sizing, and preventing joint failure under eccentric loading conditions.
Tips: Enter the imaginary force in Newtons and the number of bolts in the joint. Both values must be positive (force > 0, number of bolts ≥ 1).
Q1: What is imaginary force in bolted connections?
A: Imaginary Force on Bolt is the force that is considered to act virtually on the eccentrically loaded bolted joint for calculation purposes.
Q2: How is primary shear force different from secondary shear force?
A: Primary shear force is the direct shear component distributed equally among bolts, while secondary shear force results from the moment caused by eccentric loading.
Q3: When should this calculation be used?
A: This calculation is essential for designing bolted connections subjected to eccentric loads, such as bracket connections and structural joints.
Q4: Are there limitations to this formula?
A: This formula assumes equal distribution of shear force among bolts, which may not be accurate for very stiff connections or when bolt preload varies significantly.
Q5: How does bolt pattern affect the calculation?
A: While this formula calculates the average shear force, the actual bolt pattern and eccentricity will affect how the force is distributed among individual bolts.