JPH08135247A - Placing form for hopper and construction method of hopper frame using the same - Google Patents

Abstract

PURPOSE: To efficiently construct a hopper frame having a complicated shape such that a plurality of hopper ports are provided. CONSTITUTION: A PC board 41 and a stainless lining 44 of metallic material which is formed into a flat board to form an inclined shape of a hopper frame 5 are provided so as to form a concrete placing space 47 between the board 41 and the lining 44. A placing form 4 provided with a connector 48 for tightly connecting the board 41 and the lining 44 is used, and the form 4 is set on a partition wall 6 which is installed so as to form a part of the hopper frame 5, and concrete 42 is cast into the space 47 at the site, so that the concrete 42, board 41, and lining 44 are formed into a single body to form the frame 5 into an inclined shape using the lining 44.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving mold for a hopper suitable for a large silo for storing coal having a plurality of hopper openings, and a method for constructing a hopper frame using the driving mold.

[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. In addition, such a hopper skeleton requires cutting out a granular material storage material such as coal and guiding it to a hopper mouth through a shelf, so that the surface of the upper part of the hopper skeleton constructed by the site-cast concrete is sloped. Then, a lining material having excellent corrosion resistance and wear resistance and having good slippage was attached to the slope.

[0003]

However, in such a hopper skeleton, since a mold is assembled so that the surface thereof is formed into a slope while a large amount of reinforcing bar is arranged, a large amount of support material for supporting the mold is also required. become. In particular, when forming a plurality of hopper openings, the shape of the hopper body also becomes complicated, and a large amount of support material must be temporarily installed in a limited space. Further, after the construction of the hopper skeleton, it is necessary to disassemble the large amount of support material in a limited space and carry it out of the silo cylinder. In addition, it is necessary to attach a lining material to the slopes of the hopper skeleton made of concrete. In this way, the construction of the concrete hopper skeleton is complicated in many stages, the construction efficiency is low, and as a result, it takes months to build the hopper skeleton, which is a drawback. there were.
Therefore, it was considered to construct such a hopper skeleton with precast members divided into pieces, but in this case, the weight of one piece becomes very large due to the large number of reinforcements, so an ultra-large crane is required. turn into. Further, there is a drawback that the construction efficiency is lowered due to the troublesome connection and integration of the hopper body piece and other structural members of the silo or the connection between the pieces. Therefore, in view of the above circumstances, the present invention is a method for constructing a hopper skeleton using the driving mold for hopper and the hopper, which can be constructed efficiently and in a short construction period even when a plurality of hopper openings are formed. It is provided.

[0004]

That is, the invention according to claim 1 of the present invention has a back side form plate (41) and is a smooth plate which forms the slope shape of the hopper body (5). (44) made of corrosion-resistant metallic material formed in the shape of a circle
The lining material (44) and the back side mold plate (41)
And a binding tool (4) is provided in the concrete placing space (47).
8) the back side mold plate (41) and the lining material (4)
4) is provided in a tightly connected form. Further, in the invention according to claim 2 of the present invention, in the driving form (4) for the hopper according to claim 1, the backside form plate (41) is made of precast concrete formed in a thin plate shape. And then configured. The invention according to claim 3 of the present invention is the driving mold (4) for a hopper according to claim 1, wherein the backside mold plate (41) is a structural member of the hopper frame (5). It is constructed so as to have a reinforcing member (46) forming a part. Further, the invention according to claim 4 of the present invention is the driving form (4) for a hopper according to claim 1, wherein the lining is provided on the concrete placing space (47) side of the lining material (44). Material (4
4) The rigidity reinforcing means (49) is provided and configured. In the invention according to claim 5 of the present invention, in the driving form (4) for a hopper according to claim 1, a pre-assembled reinforcing bar (36) is arranged in the concrete placing space (47). hand,
Composed. In the invention according to claim 6 of the present invention, when constructing a concrete hopper body (5), a support member (6) is constructed and installed so as to form a part of the hopper body (5). Then, the driving form (4) for a hopper according to claim 1 or 2 or 3 or 4 or 5 is mounted on the supporting member (6), and the concrete pouring on the supporting member (6). The installation space (47) is arranged, concrete (42) is placed in the concrete placement space (47), and the concrete (42) is integrated with the backside formwork plate (41) and the lining material (44). Then, the hopper body (5) is constructed, and the lining material (44) is used to form the slope shape of the hopper body (5). The numbers in parentheses () indicate the corresponding elements in the drawings for convenience, and therefore the present description is not limited to the description in the drawings. The same applies to the following action columns.

[0005]

With the above construction, in the invention according to claim 1 of the present invention, the concrete (42) cast in the concrete casting space (47) is connected to the back side form plate via the binding tool (48). The lining material (44) tightly bound to (41) is attached to the surface to act to cure. In the invention according to claim 2 of the present invention, the back side form plate (41) made of precast concrete is concrete (4) cast in a concrete casting space (47).
2) Acts as one body. Further, in the invention according to claim 3 of the present invention, the reinforcing member (46) of the back side form plate (41) acts so as to reinforce the concrete (42) cast in the concrete placing space (47). To do. In the invention according to claim 4 of the present invention, the lining material (44) is reinforced by the rigidity reinforcing means (49) and acts so as to have a large rigidity. Further, in the invention according to claim 5 of the present invention, by setting the driving form (4) for the hopper at the construction position of the hopper body (5), the destination required for the hopper body (5) The braided reinforcing bar (36) acts to complete the bar arrangement. Further, in the invention according to claim 6 of the present invention, concrete (42) is placed in the concrete placing space (47) in a state where the driving form (4) for hopper is mounted and supported on the support member (6). It works as if cast.

[0006]

1 is a cross-sectional side view showing an example of a silo to which the present invention is applied, FIG. 2 is a plan view of the silo shown in FIG. 1, and FIG. 3 shows a lower portion of a cylinder and a hopper body of the silo shown in FIG. FIG. 4 is an enlarged view showing a connecting portion, FIG. 4 is a cross-sectional view taken along the line IV and IV in FIG. 3, FIG. 5 is a plan cross-sectional view showing the exterior part of the hopper body shown in FIG. 3 and a partition wall, and FIG. 7 is a sectional side view showing an upper portion of the hopper body shown in FIG. 7, FIG. 7 is a sectional side view showing a lower portion of the hopper body shown in FIG. 3, and FIGS. 8 to 10 show a procedure for constructing the hopper body shown in FIGS. 6 to 7. It is a series of figures shown.

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 constructed integrally with the above, and is provided to form the silo 1, and the hopper body 5 has a large number of partition walls 6 provided upright on the bottom board body 2 and a large number of the partition walls 6. A plurality of supported exterior parts 7 and a plurality of suspension beams 9,
It is composed of a plurality of housings 10 and the like. Also,
The hopper body 5 has a plurality of (4 in the embodiment)
The hopper space 8 is formed in a downward constricted shape so that each of the hopper spaces 8 is continuous with the exterior portion 7, the suspension beam 9, and the housing 10 in the direction intersecting the plane of FIG. The exterior portion 7 and the housing 10 are extended along the respective extending directions (directions of arrows A and B in FIG. 2) of the four hopper spaces 8, and the suspension beam 9 is provided with four ridges. Direction of extension and intersection of hopper space 8 (direction of arrows C and D in FIG. 2)
It is provided in the form of extension.

As shown in FIG. 1 or 5, the partition wall 6 has a predetermined thickness in the direction intersecting with the plane of FIG. 1 shown in the directions of arrows A and B in FIG. 5, and the arrows shown in the horizontal direction of FIG. C,
A plurality of partition walls 6 are arranged in a row at a predetermined interval in the D direction, and are arranged so as to stand side by side with a predetermined pitch in the directions of arrows A and B (direction intersecting with the plane of FIG. 1). The hopper body 5 is installed so as to be a part of the hopper body 5 in such a manner that it is arranged inside the exterior portion 7 forming the surface layer portion of the hopper body 5.

As shown in FIG. 3, the suspension beam 9 is arranged on the hopper body 5 in a shape having a predetermined thickness in the direction intersecting with the plane of FIG. 3 (direction of arrows A and B in FIG. 2). Cage,
The suspension beam 9 is configured to connect the plurality of partition walls 6 and the exterior portion 7 provided on the surface layer side of the partition walls 6 in the left-right direction in FIG. Therefore, as shown in FIG. 2, the suspension beams 9 are horizontal beams that connect the cylindrical bodies 3 in the left-right direction of FIG. 2 and are arranged at predetermined intervals in the vertical direction of FIG.
It is provided in the form of being arranged at a predetermined pitch in the direction intersecting with the paper surface), and the hanging beam 9 is provided at the top 9 as shown in FIG.
The a is formed to have a pointed triangular roof-like cross-sectional shape, and is connected to and supported by the cylindrical body 3 via a bar or the like.

Further, as shown in FIG. 3, the housing 10 is arranged above the cutting shelves 7b, 7b which will be described later, and the housing 10 is, as described above, in the direction intersecting the plane of FIG. Via a plurality of suspended beams 9 lined up in
It is composed of a gate-shaped lower portion 10a extending in a direction intersecting with the plane of FIG. 3, 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 running space 11 communicates with the payout space 7c, which is the hopper opening of the silo 1, through the gap between the cutting shelves 7b, 7b facing each other in the horizontal direction in FIG. It is a space for the carriage portion (not shown) to travel.

By the way, as shown in FIG. 3, the exterior portion 7 has a top portion 7d formed in a laterally inverted triangular prism shape so as to point toward the apex, and the exterior portion 7 has a lower portion at the bottom thereof. Figure 3
As shown in FIG. 3, the hopper lower wall 7a located between the partition wall 6 and the payout space 7c is erected so as to have a predetermined height on the bottom skeleton 2 in a direction intersecting the plane of FIG. It is arranged so as to extend continuously. Lower wall 7a of each hopper
In the vicinity of the upper end of the cutout shelf 7b, the cutout shelf 7b can be formed between the hopper lower walls 7a, 7a by the cutout shelves 7b, 7b facing in the left-right direction in FIG.
As shown in FIG. 3, the member is provided as a member extending in a direction intersecting with the plane of the drawing, and therefore, the payout space 7c is formed in the hopper body 5 at the bottom portion of the storage space 30 in a form corresponding to the hopper space 8. There are 4 strips. As shown in FIG. 7, each of the cutting shelves 7b is composed of a half PC plate 41c which is a precast concrete member and a concrete 42 which is cast on-site in such a manner as to be connected and integrated with the half PC plate 41c. Between the top and 7d
As shown in FIG. 3, slope-shaped slopes 7e are arranged between the slopes 7e, 7e opposed to each other in the left-right direction in FIG. 1 so that the hopper space 8 with a downward constriction can be formed as described above. There is.

Further, as shown in FIG. 6, the exterior portion 7 constituting the hopper body 5 is a driving mold for a hopper,
A mortar form 4 including a PC plate 41, a stainless steel lining 44, a binding tool 48, and the like, which will be described later, is already integrated with the concrete 42 cast on site in the mortar form frame 4 to form the hopper skeleton 5. Is buried as part of the
The driving form 4 has a PC plate 41 made of precast concrete formed in a thin plate shape. PC version 41
Is a back side form plate for molding the back side of the concrete 42 that is placed in the driving form 4, as shown in FIG.
It is arranged on the partition wall 6 side in the exterior portion 7,
In the PC plate 41, as shown in FIG. 5 or 6, a reinforcing bar 46 functioning as a reinforcing member forming a part of the structural member of the hopper body 5 is embedded and arranged. In addition, P of the driving form 4
At a position facing the C plate 41, a stainless lining 44 made of a corrosion-resistant metal material formed in a smooth plate shape,
A concrete placing space 47 is provided between the PC plate 41 and the stainless steel lining 44. On the surface side of the stainless steel lining 44, the slope 7e is formed, and on the rear surface side of the stainless steel lining 44, that is, the concrete placing space 47 side, a reinforcing rib 49 composed of an angle or the like is formed by welding or the like. It is provided as a means for reinforcing the rigidity of the stainless steel lining 44 by being integrated with the concrete 42 that is cast in the concrete casting space 47. Further, in the concrete placing space 47 between the PC plate 41 and the stainless steel lining 44, some binding tools 48 made of a steel material formed in a rod shape are provided so as to tightly connect the PC plate 41 and the stainless steel lining 44. The binding device 48 can hold the concrete placing space 47 at a constant width. Further, as shown in FIG. 6, in the concrete placing space 47, the prefabricated reinforcing bar 36 formed by previously assembling the required bar arrangement is placed in the concrete placing space 47. As shown in FIG. 5, the exterior portion 7 that is embedded in the interior and is formed by the driving form 4 is connected to the partition wall 6 via the horizontal reinforcement bar 40. It is integrated.

Since the silo 1 has the above-described structure, when constructing the silo 1, first, the silo 1
The ground 39 is excavated along the shape of the bottom skeleton 2 to a position where the bottom skeleton 2 should be constructed and constructed, and concrete is cast on site along the shape of the bottom skeleton 2.
After the bottom skeleton body 2 is constructed in this way, next, the work of constructing the hopper skeleton body 5 is performed. Therefore, first, as shown in FIG. 8, a partition wall 6 is provided at a predetermined position on the bottom board body 2 where the hopper body 5 is to be constructed, as a support member for supporting a driving form 4 described later, and the partition wall 6 is also used. The walls 6 form a part of the hopper body 5, and are sequentially constructed and installed by, for example, pouring on-site concrete.

Next, using the constructed partition wall 6,
The lower portion of the exterior portion 7 shown in FIG. 7, that is, the hopper lower wall 7a
And the cut-out shelf 7b is constructed. At this time, the hopper lower wall 7
Since a and 7a are formed so as to continuously extend in the directions of arrows A and B in FIG. 2, as shown in FIG. 9, partition walls 6 lined up at a predetermined interval in the direction intersecting with the paper surface of FIG. 9 are used. Assemble the conventional formwork 13 at the bottom of the left and right sides of FIG.
By placing concrete 42 in the conventional form 13,
Install. The cutting shelf 7b is provided with a half PC plate 41c made of precast concrete, for example, using the mold 13 of the hopper lower wall 7a, and the concrete 42 is placed so as to be integrated with the half PC plate 41c. Build and build in the form of

In this way, the lower portion of the exterior portion 7 of the hopper body 5 is constructed, and in parallel with the construction work of the lower portion,
The upper part of the exterior part 7 of the hopper body 5, that is, the part forming the slope 7e and the top part 7d is constructed. It should be noted that the in-situ pouring of the concrete 42 for constructing the upper part of the exterior part 7 may be performed simultaneously with the pouring of the concrete in the lower part of the exterior part 7 or in a separate process. Therefore, first, as shown in FIG. 9 of the upper part of the partition wall 6 constructed and installed as a part of the hopper body 5 in advance.
On the slopes on both the left and right sides, as shown in FIG.
4 are installed on the partition wall 6 respectively.
Then, the concrete casting space 47 is arranged and formed by the driving form 4 installed on the slope of the partition wall 6 so as to be located above the cutting shelf 7b. In the concrete placing space 47 in the driving form 4, pre-assembled reinforcing bars 36 for reinforcement required for the upper part of the exterior portion 7 are pre-assembled and arranged. For this reason, the installation work of the driving form 4 also completes the rebar work necessary for the upper part of the exterior part 7. Further, in the driving form 4, the PC plate 41 for forming the back surface side and the front surface side of the concrete 42 and the stainless steel lining 44 are tightly connected with each other via the binding tool 48, so that the work of the formwork is labor-saving. To be done. Furthermore, the exterior part 7
The work of loading and setting the driving form 4 into the place where the upper part of the building should be built is smoothly performed by the small crane because the concrete 42 is not yet placed in the concrete placing space 47 at this time. . Also, the driving form 4
Can be installed so as to be mounted and supported on the constructed partition wall 6, so that the form supporting work for supporting the driving form 4 can be minimized.

In this way, when the concrete placing space 47 is formed by installing the driving form 4, the concrete 42 is placed in the concrete placing space 47 on the site up to the upper end 4t position. Then, the PC plate 41 forming the back surface of the exterior portion 7 and the stainless steel lining 44 forming the surface portion are tightly bonded together via the tight fitting 48, so that the concrete 42 poured into the concrete placing space 47 is placed. The PC plate 41 and the stainless steel lining 4
The concrete 42 is accurately placed without increasing the interval 4 and protruding. Then, the concrete 42 cast in the concrete placing space 47 uses the PC plate 41 and the stainless lining 44 as a form plate, and these 41,
42 is integrally attached to the back surface and the front surface,
To cure. Then, the exterior part 7 is accurately formed into a predetermined shape. When the concrete 42 is poured and hardened, the stainless steel lining 44 has concrete adhering property due to the rib shape of the reinforcing ribs 49, and the concrete 42
And firmly established. Further, the concrete 42 is integrated with the PC plate 41 made of precast concrete in a well-known form. Therefore, the concrete 42 cast in the concrete placing space 47 is surely integrated with the PC plate 41 and the stainless steel lining 44, whereby the upper part of the exterior part 7 up to the upper end 4t is easily formed and constructed without trouble. . As shown in FIG. 6, the prefabricated reinforcing bar 36 which has been laid in advance in the driving form 4 is connected to the reinforcing bar 46 which is laid in the PC plate 41, so that concrete placement is performed. Since it can serve as a reinforcing bar for the concrete 42 cast in the space 47, the pre-assembled reinforcing bar 36 and the PC plate 4
It is possible for the first reinforcing bar 46 to function efficiently.
Therefore, as shown in FIG. 6, it is possible to regard the lower end reinforcement 36a arranged in the upper part of the exterior portion 7 as the main reinforcement connected to the reinforcing bar 46 in the PC plate 41.

Therefore, a top portion 7d which is precast in the shape of a tumbling triangular prism is prepared. As shown in FIG.
It is installed by being driven into the uncured concrete 42 in the driving form 4 in which the concrete has been cast up to the upper end 4t. Then, the exterior portion 7 is formed outside the partition wall 6 by connecting to the partition wall 6 in a form in which the sloped surface 7e is formed by the stainless steel lining 44. As a result, the most complicated construction site of the hopper body 5 is preferably the partition wall 6 and the upper part of the exterior part 7 including the PC plate 41 integrated with the concrete 42 in the concrete placing space 47 and the stainless steel lining 44. Construction is completed. Therefore,
The hopper skeleton body 5 constructed in this way can withstand a large load by utilizing the properties of concrete. Therefore, the stored matter 38 in the silo 1 is always smoothly delivered from the hopper space 8 formed by the hopper body 5 to the delivery space 7c. Further, the PC plate 41 of the driving form 4 becomes a part of the structural member of the hopper body 5 in a form that the reinforcing bars 46 embedded therein can reinforce the concrete, and even after the concrete is poured here. In addition to the fact that there is no need to remove the formwork, the installation itself of the driving formwork 4 described above becomes part of the construction of the structural member, and construction efficiency is good. Further, since the sloped surface 7e of the exterior portion 7 is formed by the stainless steel lining 44, it is possible to maintain a good sliding condition without corrosion or wear over a long period of time due to the characteristics of stainless steel. Further, the reinforcing rib 49 provided on the back surface side of the stainless steel lining 44 can firmly adhere and integrate the stainless steel lining 44 to the concrete 42 as described above, and also the rigidity of the stainless steel lining 44. Can be increased. Therefore, the stainless steel lining 44 can withstand the weight of the granular material 38 and the eccentric load when the granular material 38 is discharged, with a high degree of rigidity.

Therefore, according to the above-mentioned procedure, even when a plurality of hopper openings such as the hopper space 8 and the dispensing space 7c are formed, the sloped surface 7e of the exterior portion 7 which is the most complicated to construct is a solid structure portion. Since it can be efficiently constructed, as a result, the hopper frame 5 can be constructed efficiently and accurately in a short construction period. Therefore, the suspension beam 9 and the housing 10 are constructed so as to construct the upper portion of the exterior portion 7 and to connect to the exterior portion 7. In addition, in the housing 10, as shown in FIG.
Since 0a must be constructed so that it hangs under the suspension beam 9, the lower portion 10a is precast in the factory and is attached when the suspension beam 9 is installed. Then, a stainless mold 4 formed in a box shape having an open upper end corresponding to the shape of the intermediate portion 10b.
5 is installed on the lower part 10a, and the concrete 42 is cast on site in the stainless mold 45 to form the intermediate part 10b.
Construct. Then, the concrete 4 of the intermediate portion 10b
The top part 1 of the precast member before the 2 is completely cured
The housing 10 is completed when the 0c is positioned and installed so that its upper end side has a sharp shape. In this way, the lower part 1 of the housing 10 having a complicated gate shape is formed.
0a is simply carried out by installing a precast member, and the intermediate portion 10b whose level position corresponds to that of the suspension beam 9 is formed by concrete 42 cast on site to ensure that the suspension beam 9 and the intermediate portion 10b are integrated. Therefore, it can be constructed economically. Further, as shown in FIG. 4, the hanging beam 9 having a pointed cross-sectional shape also uses an appropriate driving formwork, and concrete is cast in the inside thereof to harden the concrete. Precast top 9a before
It is constructed by driving in.

In this way, the housing 10 and the suspension beam 9 are also easily constructed in the same manner as the partition wall 6 and the exterior portion 7 described above, whereby the construction of the hopper body 5 is completed. Therefore, in this way, the hopper body 5 is constructed in advance and the cylindrical body 3 is constructed. Also, the cylindrical body 3
And the steel frame 31a for the truss of the roof 31 are assembled. Then, when the tubular body 3 is built up to a predetermined height and constructed, the roof 31 is lifted up, and the stacker 33 and the receiving conveyor 35 are laid up. In this way, the outer peripheral end where the roof 31 and the tubular body 3 are connected is
Process appropriately. Then, the construction of the silo 1 is completed in a short construction period as a result of the efficient construction of the hopper body 5.

In the above-described embodiment, the back form plate of the driving form 4, which is the driving form for the hopper, is the PC plate 41 made of precast concrete in which the reinforcing bar 46 is embedded as a reinforcing member. Although an example has been described, the backside form plate may be other than precast concrete. Further, the reinforcing member held by the back side form plate does not necessarily have to be the reinforcing bar 46, and it does not matter even if such reinforcing member is not held. Further, in the embodiment, the example in which the lining material of the driving form 4 is the stainless lining 44 is described. However, the lining material is formed so as to be slippery smoothly, and is made of a corrosion-resistant metal material. Any other material may be used as long as it is formed. Further, in the embodiment, the prefabricated reinforcing bar 3 is provided in the concrete placing space 47 of the driving form 4.
Although the example in which 6 is arranged in advance has been described, the pre-assembled reinforcing bar 3
The configuration of 6 and the presence or absence thereof are arbitrary.

[0022]

As described above, according to the invention described in claim 1 of the present invention, the back side form plate such as the PC plate 41 is provided, and the slope shape of the hopper body 5 is formed so as to be smooth. A lining material such as a stainless lining 44 made of a corrosion-resistant metal material formed in a flat plate shape is provided in the form of forming a concrete pouring space 47 between the lining material and the back side form plate, and in the concrete pouring space 47. Bindings 48
Is provided in a form in which the back side form plate and the lining material are tightly connected to each other to form a driving mold for a hopper such as the driving mold 4,
Concrete 4 placed in concrete placing space 47
2 can be hardened in a form in which the lining material tightly bound to the back side mold plate via the binding device 48 is attached to the surface. Therefore, if the hopper skeleton body 5 is constructed using the hopper driving mold, the sloped shape of the hopper skeleton can be easily formed by the lining material. Also, the work of attaching the lining material to the slope of the hopper body 5 is omitted. Further, in the present invention, the lining material forming the slope shape and the back side mold plate are pre-bonded to each other, so that the back side and the front side mold plate are combined as in the case of using the conventional mold. No work required. Due to the fact that the formwork work is not required, temporary work for scaffolding and support materials and their dismantling and carrying-out work can be simplified. Furthermore, when the hopper driving formwork according to the present invention is carried into a construction site, the concrete placing space 47 is used.
Is transported in an empty state, and the concrete 42 is later used in the form of being cast on site. Therefore, during transportation,
No large crane is needed. Also, by applying on-site cast concrete, it is possible to easily achieve connection and integration between the construction sites, so that there is no need for joint work as in the case of connecting all precast members. Therefore, even when constructing a complicated hopper body such as a plurality of hopper openings such as the payout space 7c,
It is efficient and can be constructed in a short construction period.

According to a second aspect of the present invention, in the hopper driving formwork according to the first aspect, the back side form plate is made of thin cast precast concrete, Since it is configured, the backside form plate made of precast concrete can be integrated with the concrete 42 cast in the concrete casting space 47. Therefore, only by performing the work of placing the concrete 42 into the concrete placing space 47, the backside form plate can function as a part of the concrete hopper skeleton 5 after the concrete placing. For this reason,
Installing the driving mold for the hopper does not only mean that the mold is installed, but it also serves as the work of constructing a part of the concrete hopper skeleton 5. The amount of on-site casting work is reduced.

According to a third aspect of the present invention, in the driving mold for a hopper according to the first aspect, the back side mold plate is a reinforcing bar forming a part of a structural member of the hopper frame 5. Since it is configured to have the reinforcing members such as 46, the reinforcing member of the back side form plate is the concrete placing space 47.
It is possible to reinforce the concrete 42 that is placed in the. Therefore, the back side mold plate functions as a driving form plate for molding the hopper skeleton 5 at the time of pouring concrete,
After the concrete is poured, the structural portion of the hopper body 5 can bear the strength. For this reason, the amount of reinforcing bar to the concrete placing space 47 can be reduced by the amount of the reinforcing member of the back side mold plate, and by this, the reinforcing bar work at the hopper skeleton 5 construction site is reduced, It is possible to further shorten the construction period. Further, it is possible to reduce the working space for temporarily placing the reinforcing bars arranged in the concrete placing space 47.

The invention according to claim 4 of the present invention is the driving form for a hopper according to claim 1, wherein a reinforcing rib 49 of the lining material is provided on the concrete placing space 47 side of the lining material. By providing rigidity reinforcement means such as
Since it is configured, the lining material is reinforced by the rigidity reinforcing means and can have a large rigidity. Therefore, the lining material that forms the sloped shape of the hopper body has a weight of a reservoir stored inside the silo 1 or the like when the hopper body 5 is in service and an unbalanced load when the reservoir slides on the slope of the hopper. However, the lining material provided with the rigidity-reinforcing means can cause the stored material to slide properly without causing harmful deformation. Further, the rigidity reinforcing means is provided on the concrete placing space 47 side of the lining material, so that the adhesiveness between the concrete and the lining material can be enhanced when the concrete is placed in the concrete placing space 47. Therefore, the lining material is surely integrated with the cast concrete without the risk of the lining material peeling off. As a result, even when the hopper skeleton body 5 is used as described above, the lining material is not separated from the hopper skeleton body 5, and the stress can always be accurately transmitted to the concrete portion of the hopper skeleton body 5.

Further, the invention according to claim 5 of the present invention is configured by arranging the pre-assembled reinforcing bar 36 in the concrete placing space 47 in the driving form for hopper according to claim 1. Therefore, by setting the driving form for the hopper at the construction position of the hopper skeleton 5, the prefabricated reinforcing bar 36 required for the hopper skeleton 5 can be completed. Therefore, when constructing a large and complicated hopper skeleton body 5 having a plurality of hopper openings, the amount of reinforcement is also large, but the reinforcement work for applying such a large amount of reinforcement can be simplified. I can. For this reason, it becomes possible to construct the hopper body 5 more efficiently and in a short construction period.

Further, in the invention according to claim 6 of the present invention, when the hopper body 5 made of concrete is constructed, the supporting member such as the partition wall 6 is constructed so as to form a part of the hopper body 5. It is installed, the driving form for hoppers according to claim 1 or 2 or 3 or 4 or 5 is mounted on the supporting member, and the concrete placing space 47 is mounted on the supporting member.
And placing the concrete 42 in the concrete placing space 47 to integrate the concrete 42 with the backside formwork plate and the lining material to construct the hopper skeleton 5, and to construct the hopper skeleton with the lining material. Since it is configured so as to form the sloped shape of 5, the concrete 42 can be poured into the concrete placing space 47 in a state where the driving form for the hopper is mounted and supported on the support member. Therefore, when the hopper skeleton body 5 is driven and constructed, it is not necessary to assemble the formwork so that the surface thereof is formed into an inclined surface as in the case of using the conventional formwork. Further, the driving mold for the hopper can be installed at the construction site by being mounted on the already constructed supporting member, so that it is not necessary to temporarily install a large amount of support material for supporting the mold. Further, the work of dismantling and carrying out the large amount of the support material after the hopper skeleton body 5 is constructed is omitted. Further, according to the present invention, the sloped shape of the hopper body 5 can be formed on the lining material only by performing the concrete pouring work, so that the work of sticking the lining material on the sloped surface of the hopper body 5 is omitted. It Further, according to the present invention, when the hopper driving mold is installed at the position where the hopper frame 5 is to be constructed, the concrete 42 is not yet cast into the concrete placing space 47, so that the hopper driving mold is The frame can be smoothly transported by a small crane and does not require a large crane. Therefore, even a large hopper frame having a plurality of hopper openings can be constructed and constructed extremely efficiently in a short construction period.

[Brief description of drawings]

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

FIG. 2 is a plan view of the silo shown in FIG.

FIG. 3 is an enlarged view showing a connecting portion between a lower portion of a cylindrical body and a hopper body in the silo shown in FIG.

FIG. 4 is a sectional view taken along arrows IV and IV in FIG.

5 is a plan cross-sectional view showing the engagement between the exterior wall and the partition wall of the hopper body shown in FIG.

FIG. 6 is a sectional side view showing an upper portion of the hopper body shown in FIG.

7 is a sectional side view showing a lower portion of the hopper body shown in FIG.

FIG. 8 is one of a series of diagrams showing the procedure for constructing the hopper body shown in FIGS. 6 to 7.

9 is one of a series of diagrams showing a procedure for constructing the hopper body shown in FIGS. 6 to 7. FIG.

FIG. 10 is one of a series of diagrams showing the procedure for constructing the hopper body shown in FIGS. 6 to 7.

[Explanation of symbols] 4 ... Driving form for hopper (driving form) 41 ... Backside form plate (PC version) 42 ... Concrete 44 ... Lining material (stainless steel lining) 47 ... Concrete placing Space 46 ... Reinforcing member (reinforcing bar) 48 ... Tightening device 49 ... Rigid reinforcing means (reinforcing rib) 36 ... Prefabricated reinforcing bar 5 ... Hopper frame 6 ... Supporting member (partition wall)

Claims (6)

[Claims] 1. A lining material made of a metal material which has a back side form plate and is formed into a smooth plate shape so as to form a slope shape of a hopper body, and concrete is provided between the lining material and the back side form plate. A driving form for a hopper, which is provided so as to form a driving space, and a binding tool is provided in the concrete driving space so as to bond the back side mold plate and the lining material. 2. The driving mold for a hopper according to claim 1, wherein the backside mold plate is made of thin cast precast concrete. 3. The driving mold for a hopper according to claim 1, wherein the backside form plate has a reinforcing member which is a part of a structural member of the hopper body. 4. The driving mold for a hopper according to claim 1, wherein a rigidity reinforcing means for the lining material is provided on the side of the lining material facing the concrete placing space. 5. The driving formwork for a hopper according to claim 1, wherein a pre-assembled reinforcing bar is arranged in the concrete placing space. 6. When constructing a hopper skeleton made of concrete, a supporting member is constructed and installed so as to form a part of the hopper skeleton, and said supporting member is any one of claims 1 or 2 or 3 or 4 or 5. The mounting formwork for a hopper according to claim 1 is mounted, the concrete placing space is arranged on the support member, concrete is placed in the concrete placing space, and the concrete and the backside form plate and A method for constructing a hopper skeleton, wherein a lining material is integrated to construct the hopper skeleton, and the lining material forms a slope shape of the hopper skeleton.