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Our experts I Clack-racks<br />
Modelling for the calculation of<br />
the structure in 3D<br />
Modelling for the calculation of a cross section<br />
of the structure in 2D<br />
• EN 15620 / Steel static storage systems.<br />
Adjustable pallet racking. Tolerances, deformations<br />
and clearances.<br />
• EN 15635 / Steel static storage systems.<br />
Application and maintenance of storage<br />
equipment.<br />
The structure of a clad-rack warehouse is<br />
composed of thousands of junctions and<br />
rods, so you need powerful calculation<br />
programs to model and calculate this type<br />
of installation in three dimensions. 3D modelling<br />
is indispensable if we want to predict<br />
the torsional effects that a simplified<br />
analysis in two dimensions cannot reveal.<br />
Calculation programs allow.<br />
by regulation EN 15620 must also be substantiated<br />
in two dimensions.<br />
It is important to point out that the calculation<br />
of a clad-rack warehouse is an<br />
iterative process. Which means that the<br />
person calculating uses some profiles and,<br />
subsequently, checks and verifies their<br />
appropriateness. This process is repeated<br />
until getting the most finely-honed solution<br />
possible, that meets all safety requirements<br />
and that delivers maximum profitability.<br />
The iterative process will be longer<br />
or shorter depending on the experience of<br />
the person calculating.<br />
Civil works and assembly<br />
The basic civil work is minimal: only the<br />
slab on which the structure sits and the pipes<br />
for the drains are required. Likewise,<br />
depending on its use, a water-proof perimeter<br />
wall and an additional operations<br />
• To consider the actions on the structure.<br />
For example, the stored load is modelled<br />
as a load evenly distributed on the beams.<br />
It also takes into account the action of the<br />
wind, roof overloads...<br />
• To obtain the forces that the racks bear:<br />
bending, shearing and axil moments on<br />
each rod and each junction.<br />
• To obtain the deformations and displacements<br />
of all the structure’s components.<br />
• Check the suitability of the sections or<br />
profiles hypothesised in the calculation,<br />
applying the verification formulas outlined<br />
in the EN 1993 and 15512 regulations.<br />
EIn very tall facilities (25 m and upwards),<br />
it is not enough to ensure that the profiles<br />
are sufficiently resistant to the forces<br />
which they must absorb, but warehouse<br />
displacement within the range specified<br />
<strong>Best</strong> <strong>Practices</strong><br />
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