Bin Foundation - Meridian 1505 SC Owner's Manual

Owner's Manual: Corrugated Hopper Combos

3.2 BIN FOUNDATION

The following foundation specifications shall
be interpreted as recommendations only. We
recommend that you consult a civil engineer
regarding the chosen site. Because of the many
variable soil conditions, Meridian Manufacturing
Inc. assumes no liability for results arising from
the use of the recommendations. However,
these minimum standards must be respected to
assure bin warranty applicability.
1. Gravel Base:
Meridian® hopper combo bins installed
with steel skid bases require proper site
preparation to prevent damage or possible
overturning.
- The site should be in a well-drained
location with all silt, organic, and loose
soil removed. Topsoil should be excavated
to a depth equivalent to the depth of the
gravel base specified below.
- Provide a compacted gravel base of
sufficient depth and bearing capacity as
follows:
- 21 ft dia. hopper (23 ft max. wall height)
- 18 in. depth at 4500 lb/ft
- 24 ft dia. hopper (23 ft max. wall height)
- 24 in. depth at 5000 lb/ft
- 27 ft dia. hopper (23 ft max. wall height)
- 30 in. depth at 6000 lb/ft
- The gravel base should extend beyond the
inner and outer perimeter of the foundation
a distance equal to the depth of the gravel
base.
- The compacted gravel base must be
level within ± 3/8". This condition must be
maintained even after loading in order to
prevent damaging eccentric loading.
- The foundation must contact the gravel
base at all points around its perimeter.
Gaps between the foundation and the
gravel are not acceptable.
- The assembled foundation, hopper, and
bin should be anchored to prevent the
overturning from wind when empty.
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2. Concrete Slab:
We recommend that you consult a civil
engineer regarding the site you choose,
the soil conditions, and soil load bearing
capacity. A professional engineer can advise
on the proper method of construction and
type of concrete slab for your needs.
The best type of base, and the one we
recommended, is a concrete slab that is
located on well drained, level ground that is
capable of supporting the concrete slab and
a full bin under all environmental conditions.
The design of a concrete slab is based on
varied load bearing specifications for the
different sized corrugated bins. Meridian®
is not responsible for damage caused
by an inadequate concrete slab. It is the
responsibility of the owner to ensure that
good construction practices are followed to
obtain the required load carrying capacity for
the slab. A concrete slab built to the proper
performance specifications will ensure a
long, trouble-free life for the storage system.
Meridian® can provide your engineer with
the required information, such as bin design
and leg reactions (wind and weight load).
The bin must be bolted to the slab so that
all the legs or bolt plates sit evenly and are
firmly in contact with the concrete. If the
concrete is uneven, full "leg base plate"
shims can be used.
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04.2020