U.S. patent number 3,685,232 [Application Number 04/873,774] was granted by the patent office on 1972-08-22 for method of erecting a grain bin.
Invention is credited to Vincent B. Steffen.
United States Patent |
3,685,232 |
Steffen |
August 22, 1972 |
METHOD OF ERECTING A GRAIN BIN
Abstract
A method of erecting a grain bin is disclosed herein which
substantially reduces the time and effort involved in erecting
grain bins. The method comprises the steps of (1) forming a trench
in the desired configuration of the foundation; (2) attaching
wallsheets to a series of reticulated reinforcing and screed
members; (3) positioning the members with the wallsheets attached
thereto horizontally and upstandingly in the trench; and (4)
pouring concrete in the trench to form the foundation. The
reticulated reinforcing and screed members are of inverted L-shaped
configuration and unitary construction.
Inventors: |
Steffen; Vincent B. (New
Hampton, IA) |
Family
ID: |
25362284 |
Appl.
No.: |
04/873,774 |
Filed: |
December 11, 1969 |
Current U.S.
Class: |
52/741.15;
52/295; 52/745.01; 52/245; 52/364 |
Current CPC
Class: |
E04H
7/24 (20130101); E04B 1/0007 (20130101); Y02A
40/55 (20180101); Y02A 40/51 (20180101) |
Current International
Class: |
E04B
1/00 (20060101); E04H 7/24 (20060101); E04H
7/00 (20060101); E04g 021/00 (); E04f 013/06 () |
Field of
Search: |
;52/169,742,293,245,247,274,101,61,62,364,371,587,295,264
;249/13,34,90 ;25/118H |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Sutherland; Henry C.
Assistant Examiner: Ridgill, Jr.; James L.
Claims
I claim:
1. A method of erecting a grain bin comprising the steps of:
forming a trench in the desired configuration of the foundation for
the grain bin;
attaching a series of wallsheets to the upper portions of a series
of reticulated reinforcing and screed members, said reinforcing and
screed members being of an inverted L-shaped configuration and of
sufficient strength to support the weight of said wallsheets;
positioning said reinforcing and screed members and said attached
wallsheets in said trench and in an upstanding position with said
screed members extending inwardly of said reinforcing members;
pouring concrete in said trench to form a foundation, the inner
portion of said concrete being filled to substantially the same
plane as the screed members and the outer portion of said concrete
being filled to slightly above the bottom of said wallsheets.
2. The method of claim 1 wherein said trench is of circular
configuration and said reinforcing and screed members and said
wallsheets are of arcuate configuration and wherein said
reinforcing and screed members and said attached wallsheets are
positioned centrally in said trench in horizontal alignment.
3. The method of claim 2 wherein, prior to pouring said concrete,
form-holding clamps are secured in said reinforcing and screed
members, said clamps extending outwardly thereof; and wherein forms
are removably secured in said clamps and define the outer,
uppermost portion of said foundation.
Description
BACKGROUND OF THE INVENTION
This invention relates to a method of erecting a grain bin and,
more particularly, to a novel reticulated reinforcing and screed
member and its use.
Building methods for small buildings have failed to keep pace with
other technological innovations. In the construction of grain bins,
the foundation forms are first painstakingly constructed,
reinforcing wire and means for attaching the wall-sheets secured in
the forms, and concrete poured. The foundation is then cured and
wallsheets are attached to the foundation. In addition to the time
and expense required in constructing these bins, the wallsheets and
foundation generally do not fit perfectly thereby leaving openings
for rodents to enter the bin.
The method of this invention is designed to reduce the time,
effort, and financial outlay in constructing grain bins or other
small buildings. The reticulated reinforcing and screed members
described herein are advantageously utilized in this method.
SUMMARY OF THE INVENTION
This invention relates to a method of erecting a grain bin
comprising the steps of (1) forming a trench in the desired
configuration of the foundation; (2) attaching a series of
wallsheets to the upper portions of a series of reticulated
reinforcing and screed members, which members are of sufficient
strength to support the wallsheets; (3) positioning the reinforcing
and screed members and the attached wallsheets in the trench in an
upstanding position; (4) and pouring concrete in the trench to form
the foundation. This invention also relates to the foundation per
se and, more specifically, to the reticulated reinforcing and
screed members disclosed herein.
The principle object of this invention is to provide a method of
erecting a grain bin.
Another object is to provide reinforcing and screed members which
can advantageously be utilized in this method.
Still another object is to provide a foundation for a grain bin
utilizing the reinforcing and screed members described above.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a grain bin utilizing the
foundation containing the reinforcing and screed members of this
invention with a portion thereof cut away.
FIG. 2 is an enlarged perspective view of two wallsheets attached
to a reinforcing and screed member.
FIG. 3 is an enlarged perspective view of the wallsheets attached
to the reinforcing and screed member.
FIG. 4 is an enlarged perspective view of a reinforcing and screed
member positioned in a trench, the trench being partially cut
away.
FIG. 5 is a greatly enlarged cross-sectional view of the
reinforcing and screed member with a wallsheet attached thereto.
Also shown in FIG. 5 is a form holding clamp and the form which
defines the outer, uppermost portion of the foundation.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, a grain bin 11 (FIG. 1) erected by
the method of this invention and utilizing the foundation 12 (FIG.
5) of this invention is illustrated in the drawings. The
reticulated reinforcing and screed members 13 are essential
components of the foundation 12 and the construction method
disclosed herein. Wallsheets 14 are attached to the reinforcing and
screed members 13 by suitable attaching means 16 (FIG. 3).
More specifically, he reinforcing and screed members 13 (FIGS.
1--5) may be formed from separate reinforcing members 17 and screed
members 18. The reinforcing members 17 may be manufactured in any
configuration and are generally made in the configuration of the
desired foundation 12. For grain bins 11 in particular, the usual
and preferable configuration is arcuate.
The reinforcing members 17 (FIGS. 3-5) generally comprise a series
of horizontally disposed and vertically spaced rods 19 and a series
of vertically disposed and horizontally spaced rods 21. The rods 19
and 21 are affixed together in a gridiron configuration, generally
by welding the rods 19 and 21 together. When a foundation 12 of
circular configuration is desired, the horizontally disposed rods
19 are formed in an arcuate configuration with the desired
diameter. Although the gridiron configuration disclosed herein is
preferred, any reticulated reinforcing member 17 can be utilized
herein.
The screed members 18 (FIGS. 3-5) are preferably affixed to the
uppermost portion 22 of the reinforcing members 17 and are
horizontally disposed. The screed members 18 are utilized as a
leveling device in forming the top surface 23 (FIG. 5) of the inner
portion 24 of the foundation 12 and are, therefore, disposed
proximate the top surface 23. The screed members 18 are affixed to
the reinforcing members 17 so that they extend inwardly of the
reinforcing members 18.
Preferably, the screed members 18 (FIG. 3) comprise the uppermost
portion 26 of the vertical rods 21. The rods 21 are bent or formed
inwardly so that the uppermost portion 26 is perpendicular of the
vertical portion 27. The uppermost portion 26 extends inwardly of
the reinforcing members 17 when the reinforcing and screed members
13 are utilized in constructing a foundation 12 for a grain bin 11
or other building.
The reinforcing and screed members 13 can advantageously be of
unitary construction and are of an inverted L-shaped configuration
as shown in FIG. 5. To be useful in the method of this invention,
the reinforcing and screed members 13 utilized in the foundation 12
must be of sufficient strength to support the lower tier 28 of
wallsheets 14 (FIG. 1). The structural requirements can be
calculated by determining the desired configuration of the building
11 and the weight of this lower tier 28.
The foundation 12 (FIG. 5) claimed herein has an inner portion 24
and an outer portion 29 with the reinforcing and screed members 13
being centrally disposed between the inner portion 24 and the outer
portion 29. The inner and outer portions 24 and 29 are generally
formed from poured concrete.
As shown in FIG. 5, the reinforcing members 17 are disposed in an
upstanding position and the screed members 18 are horizontally
disposed. The reinforcing members 17 (FIG. 1) are disposed in the
configuration of the foundation 12 and horizontally aligned. The
screed members 18 are rigidly affixed to the uppermost portions 22
of the reinforcing members 17 and extend inwardly toward the inside
of the grain bin 11 or building. Concrete is poured to the top
surface of the screed members 18 to form the top surface 23 of the
inner portion 24 of the foundation 12. The upper surface 31 of the
outer portion 29 of the foundation 12 preferably slopes downwardly
and outwardly from the reinforcing members 17 to provide proper
drainage for the grain bin 11.
The grain bin 11 (FIG. 1) of this invention comprises the
foundation 12 described above having a series of wallsheets 14
juxtaposed of the upper portion 22 of the reinforcing members 17
and the outer portion 29 of the foundation 12. Because the grain
bins 11 are usually of circular configuration, the wallsheets 14
necessity are of arcuate configuration. To lend strength to the 14
of the wallsheets 14 are also preferably corrugated and readily
attachable together with bolts, rivets or the like.
The lower portions 32 (FIG. 5) of the wallsheets forming the lower
tier 28 are utilized, when attached to the reinforcing members 17,
as an outer form for the inner portion 24 of the foundation 12.
Additionally, the wallsheets 14 can be embedded in the foundation
12 to prevent rodents from entering the grain bin 11.
Attaching means 16 are utilized to secure the wallsheets 14 to the
reinforcing members 17. The attaching means 16 (FIG. 3) can be a
rectangular metal strip 33 securable about the reinforcing members
17 and attachable to the wallsheets 14. The particular attaching
means 16 is not critical in this invention.
As shown in FIG. 1, a suitable roof 34 is utilized with the grain
bin 11 of this invention. The roof 34 shown is standard for grain
bins 11.
The preferred configuration for the grain bin 11 and the foundation
12 of this invention is circular. In this preferred embodiment, the
wallsheets 14 and the reinforcing members 17 are, of course,
arcuately formed.
In the method of erecting the grain bin 11, the above described
reinforcing and screed members 13 and wallsheets 14 are utilized.
The first step of this method comprises forming a trench 36 in the
desired configuration of the foundation 12. Preferably, prior to
forming the trench 36, the construction site is leveled. The trench
36 is then formed, usually circularly, to a depth of at least 10
inches and a width of about 12 inches. No forms are utilized in
this method; at the proper time the trench 36 is merely filled with
concrete.
A series of wallsheets 14 are then attached to a series of
reinforcing and screed members 13 by attaching means 16 as shown in
FIG. 2. The wallsheets 14 are attached to the uppermost portions 22
of the reinforcing members 17 on the side opposite the screed
members 18. The wallsheets 14 extend downwardly about 6 to about 18
inches from the top 37 of the reinforcing members 17 and in
juxtaposition with the members 17. The reinforcing members 17
should be of sufficient strength to support the lower tier 28 of
wallsheets 14.
The reinforcing and screed members 13 and the attached wallsheets
14 are then positioned in the trench 36 in an upstanding position
with the screed members 18 extending inwardly of the reinforcing
members 17 (FIGS. 1 and 5). The reinforcing members 17 should be
centrally disposed in the trench 36 and horizontally aligned
whereby all of the screed members 18 are disposed in the same
horizontal plane.
In this position, the lower portions 32 of the wallsheets 14 serve
as forms to define the outer upper most surface 38 of the inner
portion 24 of the foundation 12. The outer, uppermost surface 39 of
the outer portion 29 of the foundation 12 can be defined by a form
41 held in a specially designed form-holding clamp 42 (FIG. 5). The
form-holding clamp 42 comprises a U-shaped end 43 for holding the
form 41 and a 7-shaped end 44 for securing the clamp 42 to the
reinforcing member 17. The ends 43 and 44 are joined together by a
leg 46.
Prior to pouring the concrete, the form holding clamp 42 is secured
in the reinforcing member 17 and the form 41 is removably secured
in the clamp 42. As shown in FIG. 5, the clamps 42 extend outwardly
of the reinforcing members 17 and the form 41 is secured on the
periphery of the foundation 12.
The concrete is then poured in sufficient amount to fill the trench
36 to thereby form the foundation 12. The concrete, on the inside
of the wallsheets 14, is filled to substantially the same plane as
the screed members 18. It is convenient, in this method, to also
pour the floor 47 of the bin 11 at this same time. To provide
proper drainage, the floor 47 should slope downwardly from the
center of the bin 11 to the foundation 12.
On the outside of the wallsheets 14, the concrete is filled to
slightly above the lower portion 32 of the wallsheets 14 and
preferably the concrete slopes downwardly from the wallsheets 14.
Rodents are thereby prevented from entering the grain bin 11 and
water will not seep into the bin 11.
Although a preferred embodiment has been described herein, various
modifications within the scope of the appended claims may be
made.
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