The spread of the longitudinal beams underneath is s = 1.25 m. The chosen length t = 2.70 m, according to the diagram in Figure 13 with an entry of mC/P = 0.49, satisfies the transverse strength requirements of the container.
The longitudinal strength of the container is safeguarded by observing the (1/4, 3/4) stowage rule. A calculated check is therefore not necessary.
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