Hyperstatic loading
RAM Concept calculates the effects of the hyperstatic loading for all objects (elements, springs, support, design sections, design strip segment cross sections and punching checks) by using the following vector relationship:
Fh = Fb - Fp |
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For objects that do not contain tendons (walls, columns, springs, rigid supports, design sections without tendons and design strips without tendons), Fp is zero, so:
Fh = Fb
For slab elements the calculation of Fp for every element is not performed, as there is no clear definition of Fp for anything except a cross section. RAM Concept ’s slab analysis plots assume Fp = Fb ( Fh = 0), but these plotted values are not used in the slab design and checking. RAM Concept calculates design section and design strip cross section forces (without the assumption of Fp = Fb) as follows:
Fh = Fb - Fp