NB/T47065.3 Container Supports – Part 3: Lug Type Supports; Allowable Load [Q] for Type C Supports
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The last edit to this post was made by chen11376 on 2018-9-27 09:07. For NB/T47065.3 – Container Supports, Part 3: Ear Supports, is it true that the allowable load for Type C supports is primarily determined by the strength calculation of the gusset plates (since the reduction factor k for these gusset plates is low), rather than by the strength calculation of the base plate? The standards are determined based on the strength of the base plate; I’m not sure how that is taken into account. Are there new k=f(λ) graphs? Is the allowable load for Q345R appropriate? Table 2 Allowable load of Type A support Q345R/kN: 18, 32, 56, 112, 142, 222, 259, 381. Table 3 Allowable load Q345R/kN for Type B bearings: 17, 32, 56, 112, 142, 222, 279, 381. Table 4 Allowable load Q345R/kN for Type C bearings: 42, 74, 98, 157, 237, 283, 402, 438.
The same question: based on the previous curves, it seems that in many cases the control is done by the rib plates, but according to the standards, it should be controlled by the bottom plate. How is this reduction factor k calculated specifically?
Both the rib plates and the local stress in the shell limit the load-bearing capacity; if the thickness of the bottom plate is insufficient, it can be increased
I came to learn*, as I hadn’t calculated it myself. All are selected according to standards.