JPH08135244A - Construction of hopper body for silo - Google Patents

Abstract

PURPOSE: To efficiently construct a hopper body for a large-sized silo with a small-sized crane. CONSTITUTION: On constructing a hopper body that is composed of a plurality of hopper spaces 8 arranged in lines in the direction A-B marked with arrows on the attached figure and in parallel rows arranged in the direction intersecting the direction A-B with discharge spaces 7c formed corresponding to the hopper spaces 8, precast concrete(PC) roofs 71 are prepared with stainless linings 44 stuck thereto beforehand. Partitioning walls 6 are constructed, preceding by a plurality of numbers the installation of the PC roofs 71, at specified pitches in the direction intersecting the direction A-B. The PC roofs 71 are installed successively, being synchronized with construction of the partitioning walls 6, after being brought in with a small-sized crane 36 to positions near the direction B marked with the arrow, along which the PC roofs 71 are to be installed successively on the partitioning walls 6 that are finished up in curing. Then, cut-out shelves 7b and a hopper lower wall 7a are constructed, being connected to each of lower parts of the PC roofs 71.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a coal storage silo, etc.
The present invention relates to a method for constructing a hopper frame in a silo, which is suitable for use in forming a plurality of hopper openings with a large silo.

[0002]

2. Description of the Related Art Conventionally, since a hopper frame in a large silo such as a coal silo has a very large load applied from above, a large amount of reinforcement is applied to the inside of the hopper frame so that concrete is cast on site. Was formed by driving so as to correspond to the shape of the hopper. Further, such a hopper skeleton body, from where it is necessary to guide the powder and granular material storage material such as coal to the cutting shelf, form the slope of the upper surface of the hopper skeleton constructed by the site-cast concrete,
A lining material excellent in corrosion resistance and abrasion resistance and having good slippage was attached to the slope.

[0003]

However, in order to construct the hopper body as described above, a large amount of bar arrangement is required, and
Since it is necessary to attach the lining material to the slope of the hopper body one by one, all of the complicated work such as bar arrangement work, formwork work, concrete placing work, lining material sticking work, etc. The construction efficiency is low, and as a result,
The drawback was that it would take months to build the hopper body. Therefore, it was considered to construct such a hopper by using a precast member divided into pieces, and sequentially constructing and connecting them, but in this case, the weight of one piece is extremely large due to a large number of reinforcements. Since it will be very large, a super large crane will be required. Since such an ultra-large crane cannot enter the inside of the cylinder of the silo, when it is desired to form the hopper spaces in a plurality of rows, there is a disadvantage that the middle row portion cannot be constructed. Therefore, in view of the above circumstances, the present invention provides a method for constructing a hopper skeleton in a silo that can be efficiently constructed in a short construction period even when a plurality of hopper spaces are formed, and can be constructed with a small crane. is there.

[0004]

That is, the invention according to claim 1 of the present invention is such that a plurality of hopper spaces (8) are formed in the upper part by a storage sliding surface (7e) and a plurality of dispensing spaces are in the lower part. When constructing a hopper body (5) in which (7c) is formed in a shape corresponding to the plurality of hopper spaces (8), a plurality of unit upper parts made of precast concrete corresponding to the upper shape of the hopper body (5). A member (71) is prepared in advance with the storage sliding surface (7e) formed on each surface side, and the support member (6) is sequentially installed at the place where the unit upper member (71) should be installed. , The plurality of unit upper members (71) on the installed support member (6), and the hopper space (8) is formed by the reservoir sliding surface (7e) of the plurality of unit upper members (71). Installation work of the support member (6) Of the unit upper member (71) which is sequentially mounted in a form of being synchronized with the unit upper member (71) which is mounted on and supported by the supporting member (6) in the form of forming the payout space (7c) at the lower portion of the hopper body (5). It is constructed so that it is constructed by connecting to the lower side. In the invention according to claim 2 of the present invention, in the invention according to claim 1, the plurality of hopper spaces (8) are arranged parallel to each other in a linear shape, and the support member is provided. A plurality of (6) in the direction (arrow C, D direction) orthogonal to the arrangement direction (arrow A, B direction) of each hopper space (8), and the unit upper member (7).
It is constructed so as to be sequentially placed and installed by the site-casting concrete (42) in a form that precedes the loading of 1). In the invention according to claim 3 of the present invention, in the invention according to claim 1, the reservoir sliding surface (7e) is made of a stainless steel plate (44), and the unit upper member (71) is made of the stainless steel. It is constructed such that the steel plate (44) is manufactured as a driving form. Note that ()
Numbers in the drawings are for convenience of reference to corresponding elements in the drawings, and thus the present description is not limited to the description on the drawings. The same applies to the following action columns.

[0005]

With the above construction, the invention according to claim 1 of the present invention is such that while the support member (6) is sequentially installed,
Unit upper member (71) on the installed support member (6)
Are sequentially mounted, whereby the upper part of the hopper body (5) acts so as to sequentially build and proceed. The invention according to claim 2 of the present invention is the support member (6) currently under construction.
The support member (6) located at a position displaced by a plurality of numbers in the direction orthogonal to the arrangement direction of the hopper space (8) is in a state suitable for mounting the unit upper member (71) after a predetermined curing period. Acts to present. In the invention according to claim 3 of the present invention, the stainless steel plate (44) functioning as a driving form at the time of manufacturing the unit upper member (71) is a lining material after the unit upper member (71) is installed. Acts as to form a reservoir sliding surface (7e).

[0006]

1 is a cross-sectional side view showing an example of a silo to which the present invention is applied, FIG. 2 is an internal plan view of the silo shown in FIG. 1, and FIG. 3 is a partially enlarged hopper portion of the silo shown in FIG. 4 and 5 are plan views showing an example of a procedure for constructing the hopper body in the silo shown in FIG. 1, FIG. 5 is a side view of the procedure for constructing the hopper shown in FIG. 4, and FIGS. 6 to 8 are hoppers shown in FIG. FIG. 7 is a series of diagrams showing an example of the body sequence building procedure of FIG.

As shown in FIG. 1, the silo 1 has a concrete bottom skeleton 2, and the bottom skeleton 2 is on the ground G.
It is provided in the shape of a disk in the depression of the ground 39 dug down to a predetermined depth from L. On the bottom skeleton 2, a concrete cylindrical body 3 reinforced by a steel frame or a reinforcing bar is erected in a cylindrical shape, and inside the cylindrical body 3, powder particles 38 such as coal or limestone are stored. The storage space 30 for storing is formed in a cylindrical shape. On the upper side of the tubular body 3, a roof 31 formed by assembling a steel frame 31a into a truss and finishing the roof is provided so that only the conveyor pit 32 is opened and the storage space 30 is closed. A stacker 33 and a receiving conveyer 35 are provided in the vicinity of the upper end portion of the so as to be supported by the steel frame member 31 a of the roof 31.

Further, as shown in FIG. 1, in the lower part of the storage space 30, a concrete hopper body 5 for discharging the granular material 38 is provided, and the cylindrical body 3 around the hopper body 5 is provided.
The hopper body 5 is integrally formed with the hopper body 5 as shown in FIG. 1 and FIG. End skeleton row 5a, 5a located at the end, and the end skeleton row 5
a, 5a located between the three central body rows 5b, 5b, 5
b is the direction of arrows A and B, respectively (direction intersecting the plane of FIG. 1)
It is provided in the form of extension. Further, in the upper part of the hopper skeleton 5, two end skeleton rows 5a, 5a and three central skeleton rows 5b, 5b, 5b are provided and four hopper spaces 8 are provided.
However, each has a downward constricted cross section and is formed to extend in the directions of arrows A and B to form a straight line. The four hopper spaces 8 are arranged in the directions of arrows C and D. Are arranged in parallel.

As shown in FIG. 3 or 5, each of the end skeleton row 5a and the center skeleton row 5b is provided with a plurality of support members arranged in the directions of arrows A and B (direction intersecting with the plane of FIG. 3) at a predetermined interval. And a partition wall 6 integrally formed with the partition walls 6 so as to cover the surfaces of the plurality of partition walls 6. Each partition wall 6 is formed in a wall shape with a predetermined width in the directions of arrows A and B shown in the direction intersecting the plane of FIG. 3, and each partition wall 6 has a quadrangular shape as shown in FIG. Is formed by a lower portion 6a and a triangular upper portion 6b connected to the lower portion 6a.

As shown in FIG. 3 or 5, the exterior portion 7 of each central body row 5b is a unit upper member made of precast concrete and formed in a roof shape, and is a plurality of units connected in the directions of arrows A and B. Each of the PC roofs 71 is formed in a shape having a pointed top portion 7d corresponding to the upper shape of the hopper body 5. As shown in FIG. 3, a pair of slopes 7e and 7e are formed on both sides of the top 7d in the directions of arrows C and D so as to form a roof surface.
Each slope 7e is a stored-material sliding surface on which a stored material such as the granular material 38 can slide. Further, the exterior part 7 has a PC roof 7
One cutout shelf 7b is provided below the pair of slopes 7e, 7e so as to project from the lower end of the sloped surface 7e, and below each cutout shelf 7b is a hopper lower wall. 7a is erected on the bottom frame 2 so as to have a predetermined height, and in a direction intersecting with the plane of FIG. 3 (arrows A and B).
Direction). Therefore, the hopper body 5 has the plurality of hopper spaces 8 at the top.
Is formed by slopes 7e, 7e facing in the directions of arrows C, D, and the payout space 7c is formed in the lower part of the skeleton 5 by hopper lower walls 7a, 7a facing in the directions of arrows C, D. It is formed below each hopper space 8 so as to correspond to the plurality of hopper spaces 8. The payout space 7c
Is arranged as a space that communicates with the same cross section in the direction intersecting with the paper surface of FIG. 3, and the payout space 7c is provided through a gap between the cutting shelves 7b, 7b facing in the left-right direction of FIG.
It is in communication with the hopper space 8.

Further, as shown in FIG. 3, a stainless steel lining 44 made of a stainless steel plate is provided on the surface of each PC roof 71 which constitutes the exterior part 7 of the hopper body 5, as shown in FIG. It is sometimes provided in the form of being driven and laid in advance, so that the sloped surface 7e is formed by the stainless lining 44. Moreover, as shown in FIG.
In the embodiment, four housings 10 are provided corresponding to the hopper space 8 and arranged along the extending direction of the hopper space 8. Further, the hopper frame 5 is provided with a plurality of suspension beams 9. Is provided at a predetermined pitch in the directions of arrows A and B, as shown in FIG. 2, in such a manner that the end skeleton rows 5a and the central skeleton rows 5b are connected in the directions of arrows C and D across each hopper space 8. ing.

The suspension beam 9 is shown in FIG.
The suspension beam 9 is arranged on the upper part of the hopper frame 5 so as to form a predetermined thickness in the direction intersecting with the paper surface, and the hanging beam 9 includes a plurality of partition walls 6 and an exterior portion 7 provided on the surface layer side of the partition walls 6. ,
Figure 3 It is designed to be connected in the left-right direction. Therefore, as shown in FIG. 2, the hanging beam 9 is a horizontal beam that connects the cylindrical body 3 in the left-right direction in FIG. 2 and has a predetermined interval in the vertical direction in FIG. Are arranged in a line at a predetermined pitch), and the hanging beam 9 is provided in FIG.
As shown in FIG. 3, the top portion 9a is formed into a pointed triangular roof-shaped cross section, and is connected to and supported by the cylindrical body 3 via a bar or the like.

As shown in FIG. 3, the housing 10 is arranged above the cutting shelves 7b and 7b, and the housing 10 is arranged in the direction intersecting with the plane of FIG. 3 as described above. Through a plurality of suspension beams 9 arranged side by side, FIG.
It is composed of a gate-shaped lower portion 10a extending in a direction intersecting with the plane of the drawing, a pointed top portion 10c, and an intermediate portion 10b connecting the lower portion 10a and the top portion 10c. On the lower side of the housing 10, a bogie traveling space 11 is continuously formed from the inner side of the lower portion 10a to the lower side thereof in a corresponding manner as a part of the hopper space 8. The traveling space 11 is the cutout shelf 7
A trolley portion of a self-propelled powdery or granular material dispensing device (not shown) is a space for traveling in a form communicating with the dispensing space 7c through a gap between b and 7b.

Since the silo 1 has the above-described structure, when constructing the silo 1, first, the silo 1
The ground 39 is excavated to a position where the bottom skeleton body 2 should be placed and constructed so as to form a recess along the shape of the bottom skeleton body 2, and concrete is cast on site along the shape of the bottom skeleton body 2. . After the bottom skeleton body 2 is constructed in this way, next, the work of constructing the hopper skeleton body 5 is performed. In this embodiment, the central skeleton row 5b of the hopper skeleton body 5 is preliminarily constructed, and a method for constructing the central skeleton row 5b will be described below. Therefore, as shown in FIG. 6, first, the PC roof 71 is made to correspond to the upper shape of the hopper skeleton 5 in the form of placing concrete 42 at the factory using a stainless steel plate that will later become the stainless lining 44 as a driving form. Prepare a certain amount in advance in the form. In addition, at the time of manufacturing each of the PC roofs 71, the embedded reinforcing bars are preliminarily arranged so that the reinforcing bar 40 is projected downward. In addition, other necessary bar arrangements are also made. Then, the stainless steel lining 44 serves as a driving form, and the stainless steel lining 44 is firmly attached to and integrated with the concrete 42 cast at the factory. The PC roof 71 is prepared for manufacturing in the form in which is formed.

On the other hand, as shown in FIG. 7, on the bottom skeleton body 2 on which the hopper skeleton body 5 is to be constructed, the lower portion 6a and the upper portion 6b of the partition wall 6 are placed at the place where the PC roof 71 is to be installed, for example, on site. The concrete 42 is installed in this order, and is installed one after another. At this time, as shown in FIG. 4, a plurality of partition walls 6 are mounted on the PC roof 71, which will be described later, in the directions of arrows C and D which are directions orthogonal to the arrangement direction of the hopper space 8 shown in the directions of arrows A and B. It will be built and installed in a way that precedes it. In this way, while the partition wall 6 is installed in advance, a plurality of parts in the direction of arrows C and D from the construction work part of the partition wall 6 on the rear side (parts of the partition wall 6 in the directions of arrows C and D) At the displaced construction points), the plurality of PC roofs 71 prepared for manufacturing as described above are provided on the partition wall 6 located here, as shown in FIG.
As shown in FIG.

That is, as shown in FIG. 4, when the partition wall 6 is constructed in the direction of arrow C or D by sequentially constructing with the cast-in-place concrete 42, the partition wall 6 under construction is The partition wall 6 located at a position displaced by a plurality of numbers in the direction of arrow C or D is constructed prior to the partition wall 6 under construction by a predetermined time. Therefore, the partition wall 6 constructed earlier by the predetermined time can be mounted with the PC roof 71 on the partition wall 6 after a predetermined curing time. Therefore, when the partition wall 6 is driven and constructed in advance, as shown in FIGS. 4 to 5, the crane vehicle 36 for mounting and installing the PC roof 71 on the partition wall 6 is installed in the bottom frame 2 Place it on top. At this time, not all partition walls 6 are constructed and installed on the bottom board body 2, and the construction of the partition walls 6 is progressing along the directions of arrows C and D, so that FIG. As shown in FIG. 7, the crane vehicle 36 can enter to a position very close to the position where the PC roof 71 should be installed.

Therefore, as shown in FIG. 5, the crane vehicle 36 is used to connect the precast PC roof 71 to the already installed PC roof 71 on the arrow B direction side in FIG. 5, and The partition wall 6 is mounted and installed on the partition wall 6 in synchronization with the above-described installation process of the partition wall 6. Then, the slopes 7e, 7e of the PC roofs 71, 71 adjacent to each other in the directions of the arrows C, D form the hopper space 8 in a straight line, and therefore, the plurality of hopper spaces 8 are formed.
However, they are formed in parallel so that their arrangement direction is directed in the directions of arrows A and B. At this time, since the PC roof 71 is a roof-shaped member that forms the upper part of the hopper body 5, it is light in weight and can therefore be carried in by a small crane vehicle 36. Therefore, the crane vehicle 36 can also enter the portion located in the middle of the silo 1 to carry out the work for mounting the PC roof 71. In this way, the precast PC
By using the roof 71, it is possible to efficiently construct the upper part of the hopper skeleton 5 without preparing a large-sized crane truck, and without performing a troublesome slope formwork or affixing work of the stainless steel lining 44. Can be done. In addition, the partition wall 6 in which concrete 42 is cast on site
Since the construction work and the installation work of the PC roof 71 are synchronized and the construction positions are deviated, the construction work can be performed simultaneously. Therefore, the construction period is short.

In this way, when the work for mounting the PC roof 71 on the partition wall 6 is carried out, the PC roof 71 is installed as shown in FIG.
As shown in FIG. 6, the bar 40 is prepared for implantation. Therefore, by utilizing the insertion line 40, the cut-out shelf 7b at the bottom of the hopper frame 5 and the hopper lower wall 7a are connected to the lower side of the PC roof 71 previously mounted on the partition wall 6. . At this time, as shown in FIG. 3, the lower portion of the hopper frame 5 such as the cutout shelf 7b and the hopper lower wall 7a is, as shown in FIG. 3, irrespective of the arrangement of the suspension beam 9, the housing 10, etc., in the direction intersecting the plane of FIG. By forming a continuous shape with the same cross section in the directions of arrows A and B, concrete 4
It is possible to collectively mount 2 in a number of pitches in the directions of arrows A and B without having to synchronize with the mounting work of one PC roof 71. Therefore, construction efficiency is good. In this way, by constructing the cut-out shelf 7b and the hopper lower wall 7a, the payout space 7c is formed correspondingly below the hopper space 8. As described above, the PC roof 7 is constructed while the partition wall 6 is sequentially constructed along the directions of arrows C and D.
1 and the cut-out shelf 7b, the hopper lower wall 7a in the order of arrow A,
By performing the process of connecting along the B direction, the construction of the hopper skeleton 5 of the central skeleton row 5b is completed.
Therefore, at the time of construction work of the hopper body 5, the cylindrical body 3 is
Since the construction has not been completed, the periphery of the construction work site of the hopper skeleton 5 which will be the cylinder 3 later is opened. For this reason, the construction work of the hopper body 5 is not limited to the work space, and the work can be freely performed with the crane truck 36 coming in and going out, and is efficiently performed.

Therefore, the hopper skeleton 5 of the end skeleton row 5a is constructed in the same manner as the construction of the central skeleton row 5b. Also, in parallel with the construction of the end body row 5a and the central body row 5b, or thereafter, the suspension beam 9 and the housing 1 are formed.
0 is constructed into a predetermined shape, for example, by using a PC member as a driving form and placing concrete 42 on the site. Then, the entire construction of the hopper frame 5 in which a plurality of hopper spaces 8 and payout spaces 7c are formed is completed. In this way, the hopper skeleton body 5 is constructed, and further, the cylindrical body 3 is constructed around the hopper skeleton body 5 in such a manner that it is raised from the bottom to the top.
Then, even when a plurality of hopper spaces 8 are formed,
By constructing the upper part of the hopper body 5 using the precast PC roof 71 and synchronizing it with the partition wall 6 to be constructed in advance, the troublesome part of the construction can be completed in a short period of time. As a result, the silo 1 can be constructed efficiently and in a short construction period.

In the above-described embodiment, the four hopper spaces 8 and the four payout spaces 7c are formed in the hopper body 5 of the silo 1 so as to be bilaterally symmetrical as shown in FIG. Although the formed example is described, the number and shape of the hopper space 8 and the payout space 7c provided in the hopper body 5 are arbitrary. Therefore, the left and right sides of each central body row 5b do not have to be the slopes 7e, and only one surface may be the slopes 7e. Further, in the above-described embodiment, the example in which the unit upper member is the PC roof 71 formed in a roof shape so as to form the exterior part 7 is described, but it is particularly troublesome when constructing the upper part of the hopper body 5. The reason is that the slope 7e is formed and the lining material is attached.
The unit upper member includes an upper portion 6b of the partition wall 6 shown in FIG.
It does not matter if the parts are integrally attached. In addition, in the embodiment, the sloped surface 7e, which is the sliding surface of the stored material of the hopper body 5, has the stainless steel lining 4.
Although the example formed by No. 4 has been described, the lining material attached here may be a steel material other than the stainless steel plate or a resin coating material. Further, in the embodiment, the example in which the supporting member of the hopper frame 5 is the partition wall 6 made of concrete 42 cast on site is described, but the supporting member may be made of a steel aggregate.

[0021]

As described above, according to the invention described in claim 1 of the present invention, a plurality of hopper spaces 8 are formed in the upper portion by the storage sliding surfaces such as slopes 7e, and a plurality of dispensing spaces in the lower portion. In constructing the hopper skeleton 5 in which 7c is formed in a shape corresponding to the plurality of hopper spaces 8, unit upper members such as a plurality of PC roofs 71 made of precast concrete corresponding to the upper shape of the hopper skeleton 5 are formed. Prepared in advance in a form in which the storage sliding surface is formed on each surface side, sequentially install a support member such as the partition wall 6 at a place where the unit upper member should be installed, and perform the above-mentioned operation on the installed support member. A plurality of unit upper members are sequentially mounted in such a manner that the hopper space 8 is formed by the reservoir sliding surfaces of the plurality of unit upper members and in a form that is synchronized with the installation process of the support member. Hot The lower part of the lower wall 7a, the cutout shelf 7b, etc. was constructed in such a manner as to form the payout space 7c and to connect to the lower side of the unit upper member mounted and supported by the supporting member. Therefore, while sequentially installing the support members, the unit upper members are sequentially mounted on the installed support members, whereby the upper part of the hopper skeleton 5 can be sequentially built and advanced. At this time, since the unit upper member mounted on the support member is formed corresponding to the upper shape of the hopper body 5, the unit upper member is lightweight and can be installed and installed using a small crane. Further, since the support members are installed sequentially in synchronization with the installation process of the unit upper member, the place where the crane for transporting the unit upper member passes and is placed is blocked by the already constructed support member. There is no such thing. Therefore, a small crane is used, which enters the unit upper member very close to the installation location,
The installation work of the unit upper member can be performed. In addition, since the formation of the hopper space 8 and the formation of the storage slide surface are performed at the same time simply by installing the unit upper member, complicated mold work and lining for forming the storage slide surface are performed. The time and effort of attaching the material is omitted. Also, since the unit upper member is made of precast concrete,
Labor saving work in the field is also saved. Therefore, the construction efficiency is good. Further, the installation work of the support member and the installation work of the unit upper member are carried out at the same time in such a manner that the two work in synchronization with each other. Therefore, the construction period is short.

According to a second aspect of the present invention, in the first aspect of the invention, each of the plurality of hopper spaces 8 is arranged in parallel in a linear shape. A direction (arrow C, D direction) orthogonal to the arrangement direction of each hopper space 8 (arrow A, B direction).
A plurality of the above-mentioned unit upper members are installed in advance in such a manner that they are sequentially placed and installed by on-site casting concrete such as concrete 42. Arrangement direction (arrows A, B
The support member located at a position displaced by a plurality of numbers in the direction (direction of arrow C, D) orthogonal to the direction) can be in a state suitable for mounting the unit upper member after a predetermined curing period. Therefore, when the support member construction work is performed at the construction start position of the support member, the rear side (arrow C
Alternatively, the support member which has reached a predetermined strength after a predetermined curing period has already been arranged at a position (shifted in the D direction), so that the unit upper member can be immediately mounted here. Therefore, even when the support member is constructed of cast-in-place concrete, the hopper frame 5 can be constructed by surely and efficiently mounting and supporting the unit upper member on the support member. Further, the hopper body 5 has a shape in which a plurality of hopper spaces 8 are formed, while the construction direction of the support member is a direction (arrow C) intersecting with the arrangement direction of the hopper space 8 (arrow A, B direction). , D direction), the support member on which the unit upper member is to be mounted is installed on the front side in the direction along the arrangement direction of the hopper space 8 (direction of arrows A and B). It is always open. For this reason, since the loading and installation work of the unit upper member can be performed freely by using the crane vehicle, the construction work of the hopper skeleton 5 can be performed more efficiently.

According to a third aspect of the present invention, in the first aspect of the invention, the storage sliding surface is made of a stainless steel plate such as a stainless lining 44, and the unit upper member is the Since the stainless steel plate was manufactured as a driving mold, the stainless steel plate that functioned as a driving mold at the time of manufacturing the unit upper member was used as a lining material after the unit upper member was installed. A surface can be formed. Therefore, normally, the work of attaching the lining material to the sloped storage sliding surface of the hopper body is very troublesome, but according to the present invention, when the unit upper member is manufactured in a factory, the unit upper member is The lining material can be attached integrally with the upper member by a simple manufacturing process. Therefore, in the present invention, as described above, in addition to improving the efficiency of the construction of the hopper body 5 in the silo 1 and shortening the construction period, the reliability of the hopper body 5 that can withstand a heavy load. The durability and the like are also improved.

[Brief description of drawings]

FIG. 1 is a sectional side view showing an example of a silo to which the present invention is applied.

2 is an internal plan view of the silo shown in FIG. 1. FIG.

FIG. 3 is a partially enlarged view of a hopper portion of the silo shown in FIG.

FIG. 4 is a plan view showing an example of a procedure for constructing a hopper body in the silo shown in FIG.

5 is a side view of a procedure for constructing the hopper shown in FIG.

FIG. 6 is one of a series of diagrams showing an example of a procedure for constructing a body row of the hopper shown in FIG.

FIG. 7 is one of a series of diagrams showing an example of a procedure for constructing a body row of the hopper shown in FIG.

FIG. 8 is one of a series of diagrams showing an example of a procedure for constructing a body row of the hopper shown in FIG.

[Explanation of symbols]

5 ... Hopper body 6 ... Support member (partition wall) 7a, 7b ... Lower part of hopper body (hopper lower wall, cutout shelf) 71 ... Unit upper member (PC roof) 7e ... Storage sliding surface 7c ... … Dispensing space 8 …… Hopper space 44 …… Stainless steel plate (stainless steel lining)

Claims (3)

[Claims] 1. When constructing a hopper skeleton in which a plurality of hopper spaces are formed in the upper part by a reservoir sliding surface and a plurality of dispensing spaces are formed in a lower part in a shape corresponding to the plurality of hopper spaces, said hopper skeleton body is provided. , A plurality of unit upper members made of precast concrete corresponding to the upper shape of the above, prepared in advance in a form in which the storage sliding surface is formed on the surface side of each, the support member in order at the place where the unit upper member should be installed The plurality of unit upper members are installed on the installed support member, in a form of forming the hopper space by the reservoir sliding surface of the plurality of unit upper members, and synchronized with the installation process of the support member. And the lower part of the hopper body is connected to the lower side of the unit upper member mounted and supported by the supporting member. A method of constructing a hopper body in a silo that was created. 2. The plurality of hopper spaces are arranged parallel to each other in a linear shape, and a plurality of the supporting members are arranged in a direction orthogonal to the arranging direction of the hopper spaces. The method for constructing a hopper frame in a silo according to claim 1, wherein the hopper frame is constructed by sequentially placing and installing the cast-in-place concrete in such a manner as to precede the loading of the members. 3. The method for constructing a hopper frame in a silo according to claim 1, wherein the storage sliding surface is made of a stainless steel plate, and the unit upper member is manufactured by using the stainless steel plate as a driving mold.