Calculating bolt size required to prevent beam bending

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SUMMARY

This discussion focuses on calculating the appropriate bolt size and strength required to secure a water tank section lined with Marine Ply to a fixed bottom section using four bolts. The hydrostatic force acting on the section varies from 9810 Pa at the bottom to 0 Pa at the top, indicating a varying uniform load beam problem. The user seeks clarification on whether to treat the load as a varying uniform load or a point load at the centroid and requests guidance on calculating the minimum strength of each bolt to prevent bending, including considerations for corner forces from adjacent sides.

PREREQUISITES
  • Understanding of hydrostatic pressure calculations
  • Knowledge of beam bending theory
  • Familiarity with bolt strength and material properties
  • Basic principles of structural engineering
NEXT STEPS
  • Research hydrostatic force calculations for varying depth scenarios
  • Learn about beam bending stress and deflection formulas
  • Investigate bolt strength ratings and material selection
  • Explore methods for analyzing corner forces in structural connections
USEFUL FOR

Structural engineers, mechanical engineers, and anyone involved in the design and analysis of bolted connections in water tank systems.

Whatamiat
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The attachment shows a side section of a water tank.(lined with Marine Ply)

The section will be bolted to a fixed bottom section with 4 bolts.

I'm trying to determine the size and strength of bolts required to do this.

My attempt at starting this problem is shown in the attachment.

Ive calculated the the hydrostatic force on the section.
The pressure on the section varies with depth from 9810pa to 0pa at the top.

Is this a varying uniform load beam problem?
Or is it a point load problem acting at the centroid of the triangle (2/3rds of the way down)

Am I wrong here?

Also where do I go from here to calculate the minimum strength of each of the four bolts to prevent the section from bending?
 

Attachments

  • pressure on side.JPG
    pressure on side.JPG
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I don't follow what you are asking.

What about the corner forces with the other two sides?
 

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