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The models have
been designed using complex state-of-the-art
computer programmes for calculating tensile
strength, based on the calculation of stiffness,
where rotation and joint displacement are unknowns,
expressing the internal stress of the bars in
function of these, using the different stiffness
involved in each unit.
The equilibrium of the structure is maintained
through the equilibrium equations of the joints.
Once all the joint displacements and rotations
are known, the interior stresses are calculated.
The recommendations of the European Convention
for metal structures have been achieved:
-Spanish Standard: UNE 76-208-92
-European Standard: CEN-TC 284
As a guide and depending upon the geographical
location of the zone where they are to be assembled,
MSC greenhouses are able to withstand
winds of up to 120 km/hour and snow and crop loads
of 40 kgs/m2.
Calculations have been made assuming the greenhouse
to be TOTALLY CLOSED (doors,
side and zenithal windows), as with any other
type of construction in order that it might withstand
said loads.
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