Applies To
Product(s):	AutoPIPE Vessel
Version(s):	ALL
Area:	General
Date Logged & Current Version	February 2024 44.00.01.014

Problem:

How Foundation Loads are calculated in vertical vessel?

Why vertical loads are higher than shear load and moments?

Answer:

Loads reported in foundation summary are correct. It is normal to have the vertical loads higher than shear loads and moments..
Understand the basis of foundation load calculations,

• Vertical Loads: 

Vertical Loads = Weight of vessel with liquid + Seismic vertical load + weight of support
Vertical Loads = 2010 + 323 + 50
Vertical Loads = 2383 daN (Matching with the report).

• Shear / Horizontal Load: 

See below formulae for Horizontal and Vertical Seismic Loads,

Horizontal loads are being calculated at different elevations, see below snap

Sum of all horizontal seismic loads = 296.2 daN (Matching with the report).

• Moment: 

Moment = Shear Load x Moment Arm (Elevation of Load acting)

Calculate the moments at every elevations.
Sum of all calculated moment = 252 daN.m (Matching with the report).