JP3691806B2 - Chimney support tower and its support unit frame and division unit frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a chimney support tower that supports a cylinder of a chimney, a support unit frame thereof, and a divided unit frame.
[0002]
[Prior art]
There are many types of chimneys. In addition to the self-supporting chimneys such as the self-supporting chimney, the chimney tube is supported by the chimney support tower, for example, a steel tower support chimney with a structure in which the cylinder is supported by a steel tower. There is a type in which the body is supported, and in the latter case, the chimney cylinder is prevented from swinging by the chimney support tower.
Conventionally, a chimney support tower for supporting the chimney cylinder of this type is formed by assembling a steel frame or the like from the lower side to the upper side. When the chimney support tower is provided around the chimney, A construction work floor for assembling steel frames, etc. will be provided around the planned installation location of the support tower, and the construction work floor will be used as a scaffold, etc., and the chimney support tower will be constructed. The work floor is removed and construction of the chimney support tower is completed.
[0003]
[Problems to be solved by the invention]
As described above, according to the conventional chimney support tower described above, it is necessary to provide a work floor for construction and to remove the work floor for the work, so that it takes a long time to complete the construction of the chimney support tower. There is a problem that it takes a long time and the construction cost is high.
[0004]
This invention is made | formed in view of the said situation, Comprising: The objective exists in shortening a construction period and improving economical efficiency.
[0005]
[Means for Solving the Problems]
The characteristic configuration of the invention according to claim 1 is a chimney support tower for supporting the cylinder of the chimney,
A plurality of support unit frames that are connectable up and down and can be inserted through the cylindrical body, and that include an assembly scaffolding attachment portion and stairs,
Wherein the plurality of supporting unit frame, together with assembled by connecting the upper and lower, at least one of the plurality of supporting unit frame is Ri Na includes a support portion capable of supporting the tubular body, scaffold attachment the assembly parts are formed to attach the assembled scaffold vertically middle portion of the supporting unit frame body and in tare Rutokoro.
[0006]
[Action and effect]
If it is a chimney support tower having this feature configuration, if you assemble a plurality of support unit frames that are arbitrarily assembled rebars, steel frames, etc., through the cylinder of the chimney, and connect them up and down, Can be formed. In addition, an assembly scaffold for assembling and constructing the plurality of support unit frames is connected to an assembly scaffold mounting portion provided in the support unit frame, and the assembly scaffold and the stairs are used. Thus, it is possible to perform the assembling work while using the support unit frame itself, and it is possible to eliminate the necessity of providing a construction work floor for performing the assembling work. And the said cylindrical body is supported by the support part with which at least one of a some support unit frame is equipped, The rocking | fluctuation is prevented.
Therefore, it is possible to shorten the construction period and improve the economic efficiency. Further, by manufacturing the support unit frame in advance at a factory or the like, it is possible to save labor in the construction site. In addition, since it is not necessary to provide a work floor for construction or to dismantle in order to perform assembly work as in the prior art, it is possible to improve work safety.
In addition, since the assembly scaffolding attachment part is formed so that the assembly scaffolding can be attached to the upper and lower intermediate parts in the support unit frame body, when the assembly is performed by arranging the support unit frame bodies vertically, the assembly scaffolding is provided. An assembly scaffold can be attached to the attachment portion. Further, when an assembly work is carried out by an operator on the attached assembly scaffold, the support unit frame is placed around the assembly scaffold. Since some parts (for example, the column frame, the upper frame, the peripheral frame, etc. above and below the upper and lower middle part) are located, these become safety frames, and it is possible to sufficiently ensure the high safety of such assembly work. consisting of [0007]
According to a second aspect of the present invention, in addition to the first aspect of the present invention, the support unit frame includes an inspection corridor capable of inspecting the cylindrical body.
[0008]
[Action and effect]
Since the support unit frame is provided with an inspection walkway, it is possible to shorten the construction and save labor when providing the inspection walkway, and use the inspection walkway provided in the support unit frame. It is convenient to check the cylinder of the chimney. By the way, this inspection walkway may be used as a scaffold when assembling and constructing a plurality of support unit frames, and if it is also used as an assembly scaffold, the number of members will be reduced, and further, It is possible to shorten the construction period and improve the economic efficiency.
[0009]
The characteristic configuration of the invention according to claim 3 is a support unit frame for forming the chimney support tower according to claim 1,
A unit connecting part that can connect the support unit frames vertically, an insertion port through which the cylindrical body can be inserted, an assembly scaffolding attachment part for connecting the support unit frames, and a staircase are provided. Ah is, the assembling scaffold attachment portion is in the form tare Rutokoro to attach the assembled scaffold vertically middle portion of the supporting unit frame body, also as a characteristic configuration of the invention of claim 4, wherein In addition, a support portion capable of supporting the cylinder of the chimney may be provided.
[0010]
[Action and effect]
If it is a support unit frame provided with such a characteristic configuration of the invention of claim 3 or 4, any number of them can be combined to provide the chimney support tower of claim 1 and shorten the construction period. In addition, it is possible to improve the economy, and by pre-manufacturing the support unit frame body in a factory or the like, it is possible to save labor in the construction site. Thus, it is not necessary to provide a work floor for construction for performing assembly work or to perform work for dismantling, so that work safety can be improved.
That is, the assembly scaffold for attaching and assembling a plurality of support unit frames to the assembly scaffold attachment part is attached to the assembly scaffold attachment part, and the support unit frame itself is used by using the assembly scaffold and the stairs. While inserting the chimney cylinder through the insertion port, the unit connecting part can connect the multiple support unit frames up and down, and the assembly work can be performed. There is no need to bother to provide a work floor, and the cylindrical body is supported and prevented from swinging by the support unit frame provided with the support portion.
In addition, since the assembly scaffolding attachment part is formed so that the assembly scaffolding can be attached to the upper and lower intermediate parts in the support unit frame body, when the assembly is performed by arranging the support unit frame bodies vertically, the assembly scaffolding is provided. An assembly scaffold can be attached to the attachment portion. Further, when an assembly work is carried out by an operator on the attached assembly scaffold, the support unit frame is placed around the assembly scaffold. Since some parts (for example, the column frame, the upper frame, the peripheral frame, etc. above and below the upper and lower middle part) are located, these become safety frames, and it is possible to sufficiently ensure the high safety of such assembly work. Become.
[0011]
According to a fifth aspect of the present invention, in addition to the characteristic structure of the third or fourth aspect, an assembly scaffold is integrally attached to the assembly scaffold attachment portion.
[0012]
[Action and effect]
Since the assembly scaffold is integrally attached to the assembly scaffold attachment part, there is no need to perform the assembly scaffold installation work on site, and the construction period can be further shortened and the economy can be improved. In addition, the assembly scaffold can be used as an inspection corridor that can inspect, for example, a chimney cylinder inserted through the insertion port, which is convenient.
[0013]
According to a sixth aspect of the present invention, in addition to the characteristic configuration of the third or fourth aspect, an assembly scaffold is detachably attached to the assembly scaffold attachment portion.
[0014]
[Action and effect]
Since the assembly scaffold is detachably attached to the assembly scaffold attachment part, when the assembly of the support unit frames is finished and the assembly scaffold is no longer necessary, the assembly scaffold is removed and the space is removed. Can be used effectively, which is convenient.
[0015]
The characteristic configuration of the invention described in claim 7 is that of the inspection corridor capable of inspecting the cylinder of the chimney inserted through the insertion port in addition to the characteristic configuration according to any one of claims 3 to 6. Ri Oh and mounting portion is provided, and the inspection corridor lies in der Rutokoro which also serves as the assembly scaffold.
[0016]
[Action and effect]
Only permanently installing inspection corridor to the mounting portion of the inspection corridor, when Ru assembled supporting unit frame body with each other, can be used as assembling scaffold, it is possible to improve the assembling work efficiency of the supporting unit frame together, after the formation of the smoke-impact support column, by using such inspection corridor, will be able to inspect the tubular body of the chimney to be inserted into the insertion opening, it is efficient.
[0017]
In addition to the characteristic configuration described in any one of claims 3 to 7, the characteristic configuration of the invention described in claim 8 is configured by assembling a plurality of divided unit frames in the circumferential direction of the cylindrical body, and The mouth is configured to be formed.
[0018]
[Action and effect]
If it is a support unit frame provided with this characteristic structure, one support unit frame consists of a plurality of division unit frames, and the insertion slot which inserts the cylinder of the chimney has these plurality of division unit frames. Since it can be assembled and formed in the circumferential direction of the cylinder, it is not necessary to carry out the work of inserting the chimney cylinder by lifting the support unit frame up and down with a tow truck etc. Labor saving and shortening in assembling the tower can be further achieved. Further, when dismantling or replacing the chimney support tower, it is possible to save labor and shorten for the same reason, which is convenient.
In addition, since the support unit frame, which is large in size, can be configured from a plurality of divided unit frames, the carrying work can be facilitated even for a large chimney.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 (a) is a schematic perspective view of an embodiment of a chimney support tower according to the present invention, and FIG. 1 (b) is a cutaway side view of one embodiment of a support unit frame forming the chimney support tower. FIG. 2 is a partially cutaway perspective view, FIG. 3 (a) is a plan view of the support unit frame, FIG. 3 (b) is a partially cutaway side view, and an exploded perspective view of the assembly state of the chimney support tower. The figure is shown in FIG.
[0022]
As shown in FIG. 1, the chimney support tower A is constructed by assembling a number of support unit frames 1 up and down, and in the figure, as an example, two chimney cylinders C are used for the chimney. It is supported by the support tower A.
[0023]
The support unit frame 1 is formed in a block shape, and the chimney support tower A can be formed by stacking and fixing the support unit frames 1 vertically in the vertical direction. It is configured.
As shown in FIGS. 2 and 3, the support unit frame 1 is light but has sufficient rigidity if the frame body 10 is assembled and formed from a long steel material such as a steel frame or a reinforcing bar. In this embodiment, as an example, the frame main body 10 is assembled from a large number of long angle steel members 2 having an L-shaped cross section.
As shown in FIGS. 2 and 3, the frame body 10 includes four column frames 10 a erected at the four corners, and upper end sides and lower end sides of the four column frames 10 a are connected by a large number of angle steel members 2. The upper frame 10b and the lower frame 10c formed by connection and the peripheral frame 10d for connecting and fixing the upper frame 10b and the lower frame 10c up and down by the angle steel material 2 are configured in a block shape having a rectangular parallelepiped shape. It should be noted that the large number of angle steel members 2 constituting the column frame 10a, the upper frame 10b, the lower frame 10c, and the peripheral frame 10d are not limited to those connected and fixed by welding as shown in the figure. It may be connected and fixed by fastening members such as the like, and the connection fixing method of these many angle steel materials 2 may be arbitrarily selected.
[0024]
As shown in FIGS. 2, 3, and 5, a unit connecting portion 11 capable of vertically connecting the frame main bodies 10 configured as described above is provided in the frame main body 10, and the support unit frame 1 is connected vertically. I can do it.
As the unit connecting portion 11, for example, as shown in FIGS. 2, 3, and 5, bolt insertion holes 12 may be provided on the upper end side and the lower end side of each frame body 10. Specifically, for example, as shown in the figure, the bolt insertion holes 12 provided on the upper end side of the column frame 10a and the upper end side of the upper frame 10b, and the lower end side of the column frame 10a and the lower end side of the lower frame 10c, respectively. Each of the provided bolt insertion holes 12 is configured to communicate with each other when the frame main bodies 10 are vertically stacked at a predetermined position, and the lower end side of the frame main body 10 located on the upper side that communicates with each other. The frame main bodies 10 can be connected and fixed by the fastening members 13 such as bolts and nuts via the bolt insertion holes 12 provided on the upper side and the bolt insertion holes 12 provided on the upper end side of the frame main body 10 located on the lower side. What should I do?
[0025]
As shown in FIGS. 2 and 3, each frame body 10 is assembled to each frame body 10 so that the assembly work for connecting and fixing the frame body 10 as described above can be performed using each frame body 10 itself. Each frame main body 10 is provided with an assembly scaffolding attaching portion 17 to which can be attached.
In the present embodiment, as an example, the assembly scaffold 16 is placed on the inner peripheral side of the frame main body 10 in a substantially horizontal posture at the intermediate portion between the upper end side and the lower end side of each pillar frame 10a and the peripheral frame 10d. The assembly scaffold attachment portion 17 is formed so as to be attachable. Note that the attachment of the assembly scaffold 16 to the assembly scaffold attachment portion 17 is not limited to that in which the assembly scaffold 16 is integrally attached to the frame body 10 by welding or the like as in the present embodiment, although not shown. The assembly scaffold 16 may be detachably attached to the frame body 10 by a fastening member or the like.
As shown in FIG. 3, the assembly scaffold 16 is a scaffold for assembly by attaching a mesh-like metal plate member P having an insertion port 18 through which a chimney can be inserted. Further, in order to support the cylinder of the chimney, as shown in FIG. 6, the support unit frame 1 can support the cylinder C of the chimney on the insertion port 18 side of the metal plate member P as shown in FIG. The part 21 may be provided. The structure of the support portion 21 allows elongation in the height direction due to thermal expansion of the cylinder C, and supports horizontal force acting on the cylinder such as seismic force and wind load via the support portion 21. Any structure can be used as long as it is transmitted to the unit frame (that is, the chimney support tower). For example, as shown in FIG. What is necessary is just to make it the structure which fits through a clearance gap.
[0026]
Further, as shown in FIGS. 2, 3, and 4, steps 16 a and 19 b are attached to the assembly scaffold 16 on the upper side and the lower side, respectively. The staircases 19a and 19b are connected and connected to each other, and the assembly scaffold 16 for the support unit frame 1 positioned on the upper side is used from the assembly scaffold 16 for the support unit frame 1 positioned on the lower side by using the steps 19a and 19b. 16 can be moved.
[0027]
Incidentally, in this embodiment, the assembly scaffold 16 made of the metal plate member P also serves as an inspection walkway 26 for the chimney support tower, and after assembling the chimney support tower A, the assembly scaffold 16 is used. It is possible to check the cylinder of the chimney inserted through the insertion port 18 by using it, which is preferable. In this case, the assembly scaffold attachment portion 17 corresponds to the inspection walkway attachment portion 27.
[0028]
In this embodiment, as shown in FIGS. 2, 3, and 4, a decorative board material 30 having a decorative finish on the surface side is provided on the outer peripheral side of the frame body 10, and a number of support unit frames 1 are connected and fixed together. If assembled, the appearance can be naturally improved, which is preferable. What is necessary is just to form this decorative board | plate material 30 from a steel material, stainless steel material, FRP material, and other various exterior materials, for example.
[0029]
Next, the assembly state of these support unit frames 1 will be briefly described. As shown in FIG. 4, the support unit frame 1 is lifted above the chimney cylinder C by a crane or the like (not shown). Assemble the cylinder with the chimney cylinder C inserted through it. At the time of this assembly, an operator is placed on an assembly scaffold 16 provided on the inner side of the support unit frame 1, and each support unit frame 1 is assembled while using the unit connecting portion 11 up and down. Can be done. Then, in the case of this embodiment, the assembly scaffold 16 is provided on the inner side of the support unit frame 1, and the column frame 10a, the upper frame, and the peripheral frame 10d are disposed on the outer peripheral side thereof. The frame main body 10 becomes a safety frame, and it is possible to sufficiently ensure the high safety of such assembly work. Further, in the present embodiment, as shown in FIGS. 1A and 4, when each support unit frame 1 is stacked up and down, the support unit frame 1 stacked on the upper side is supported on the lower side. By changing the direction of the unit frame 1 by 180 °, the steps 19a and 19b provided above and below the assembly scaffold 16 provided in each support unit frame 1 are connected to each other.
And the construction of the chimney support tower A is completed as illustrated in FIG. 1 by assembling the support unit frame bodies 1 in a number corresponding to the length of the chimney. According to the length of the chimney, the support unit frame 1 of a predetermined height is stacked and assembled one after another, and then the operation of assembling the chimney cylinder inside is repeated, so that the chimney support tower A Of course, it may be made to construct. The chimney support tower according to the present invention can be applied to a tube made of metal such as steel or stainless steel or FRP.
[0030]
As described above, according to the present invention, if a large number of support unit frames 1 are manufactured or assembled in advance in a factory or on the ground, a large number of these support unit frames 1 are stacked one on top of the other and assembled. Since the support tower A can be constructed, the construction period can be shortened and the economy can be improved. Further, not only when assembling the chimney support tower A in this way, but also when disassembling or replacing the chimney support tower A, the work of releasing the connection between the support unit frames 1 is performed, and the support unit frame body Since it suffices to remove one by one, the construction period can be shortened and the economy can be improved.
[0031]
[Another embodiment]
Other embodiments will be described below.
<1> In the previous embodiment, a configuration example of the chimney support tower A in which a large number of support unit frames 1 having the same size and shape are vertically assembled is shown, but as illustrated in FIG. Of course, it may be a chimney support tower in which the support unit frames 1 having different sizes and shapes are assembled one above the other.
In addition, the chimney support tower A shown in FIG. 7 is configured such that the support unit frame 1 is constructed by assembling a plurality of divided unit frames 31 in the circumferential direction of the cylinder C. For example, in FIGS. As shown in the drawing, four rectangular parallelepiped divided unit frames 31 are assembled in an annular shape, and an insertion port 18 through which a chimney cylinder is inserted is formed by a space surrounded by the divided unit frames 31. The In this case, although not shown, in order to provide the support unit on the support unit frame, it is only necessary to provide each support unit with a support so as to protrude toward the insertion port. In addition, in FIG. 8, as an example, only four divided unit frame bodies 31 are assembled to form one support unit frame body. Although not shown, the support unit frame body is It is sufficient that two or more divided unit frames are assembled in the circumferential direction of the cylinder.
[0032]
<2> In the previous embodiment, the example in which the peripheral frame 10d is provided so as to extend over the entire vertical length of the frame body 10 has been described. However, the present invention is not limited to such a configuration example. Even when the frame main body 10 is provided so as to extend from an intermediate portion between the upper end side and the lower end side of the frame main body 10 to the upper end side of the frame main body, when the assembling work is performed using the assembly scaffold as described above, the pillar frame The upper frame 10a, the upper frame 10d and the peripheral frame 10d also function as a safety frame, and can be assembled while ensuring high safety.
[0033]
<3> In the embodiments described so far, the configuration example in which the assembly scaffold is attached to the inside of the support unit frame has been shown. However, the assembly scaffold is attached to the outside of the support unit frame. Also good.
[0034]
<4> In the previous embodiment, the example in which the decorative plate material is provided on the outer peripheral side of the frame main body has been described. However, as shown in FIGS. Even if the external structure 31 having a window formed from a material, stainless steel, FRP material, or other various exterior materials is provided, the external appearance of the chimney support tower can be improved by assembling the support unit frame 1. This is preferable.
[Brief description of the drawings]
1A and 1B are explanatory views showing an example of a chimney support tower according to the present invention. FIG. 1B is a schematic perspective view. FIG. 2B is a cutaway side view. FIG. 3 is an explanatory view of the support unit frame shown in FIG. 2 (a) a plan view and (b) a partially cutaway side view. FIG. 4 is an exploded perspective view showing an assembly state of a chimney support tower. FIG. 5 is a cross-sectional view of the main part showing the assembly state of the chimney support tower. FIG. 6 is a plan view of the main part showing the support unit frame provided with the support part. FIG. 7 shows another embodiment of the chimney support tower. FIG. 8 is a schematic plan view showing an example of a support unit frame formed by assembling divided unit frames. FIG. 9 is a front view showing another embodiment of the support unit frame. FIG. Schematic perspective view showing another embodiment of a chimney support tower provided with a body
A Chimney Support Tower C Chimney Cylinder 1 Support Unit Frame 11 Unit Connecting Portion 16 Assembly Scaffolding 17 Assembly Scaffold Mounting Portion 18 Insertion Port 19 Staircase 21 Supporting Portion 26 Inspection Walkway Portion 27 Inspection Walkway Portion Mounting Portion 31 Split unit frame

Claims (8)

A chimney support tower that supports the cylinder of the chimney,
A plurality of support unit frames that are connectable up and down and can be inserted through the cylindrical body, and that include an assembly scaffolding attachment portion and stairs,
Wherein the plurality of supporting unit frame, together with assembled by connecting the upper and lower, at least one of the plurality of supporting unit frame is Ri Na includes a support portion capable of supporting the tubular body, scaffold attachment the assembly parts are tear Ru chimney supporting column formed to attach the assembled scaffold vertically middle portion of the supporting unit frame body.   The chimney support tower according to claim 1, wherein the support unit frame includes an inspection walkway capable of inspecting the cylindrical body. A support unit frame for forming the chimney support tower according to claim 1,
A unit connecting part that can connect the support unit frames vertically, an insertion port through which the cylindrical body can be inserted, an assembly scaffolding attachment part for connecting the support unit frames, and a staircase are provided. Ah is, the scaffold attachment portion for assembly, formed to attach the assembled scaffold vertically middle portion of the supporting unit frame body tare Ru supporting unit frame.   The support unit frame according to claim 3, wherein a support portion capable of supporting the chimney cylinder is provided.   The support unit frame according to claim 3 or 4, wherein an assembly scaffold is integrally attached to the assembly scaffold attachment portion.   The support unit frame according to claim 3 or 4, wherein an assembly scaffold is detachably attached to the assembly scaffold attachment portion.   7. An inspection corridor mounting portion capable of inspecting a chimney cylinder inserted through the insertion opening is provided, and the inspection corridor also serves as an assembly scaffold. The support unit frame described in the item.   The support unit frame according to any one of claims 3 to 7, wherein a plurality of divided unit frames are assembled in a circumferential direction of the cylindrical body so that the insertion opening can be formed.

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