The column is the most fundamental component of the shelf, and all forces
on the shelf must be transmitted to the column before being subjected to force
on the ground or floor. We say that the bearing capacity of the ground or floor
is generally ignored, but the column is our top priority. According to the
published "Design Outline for Storage Racks" (widely recognized and regarded as
an industry standard), the column should pay attention to the following content
when considering design:
From the perspective of cross-section, there are many types of
cross-sectional shapes of columns, but in terms of market distribution, some of
the profiles have relatively simple structures and are mainly used for
lightweight shelves; The multilateral rolling structure is relatively complex,
and the processing technology is also relatively complex, mainly used for medium
and heavy duty shelves. Other shapes derived from the basic form mainly involve
adding bends on longer edges to improve the stiffness and stability of the
column. In terms of specific design, in addition to considering strength,
stiffness, and structural stability, it is generally necessary to also consider
the impact of specific forming processes on the pass shape, the impact of pre
processing of the billet on product quality, such as the impact of pre punching
and bending deformation not on the cold bending roller line on product quality,
and the possible deformation of pre punching during the cold bending process. On
the premise of ensuring the requirements of fit size tolerance and hole spacing,
the design of section shape should take into account the requirements of
different plate thicknesses, and fixed bending radius should be used for
deformation.
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