Patent Application
20150143769
This application is based on Japanese Patent Application No. 2013-245224, the contents of which are incorporated herein by reference.
The present invention relates to a steel-frame building, which is installed permanently next to a stand-alone (tower-type) heavy structure, a plant including the steel-frame building, and a method for assembling the steel-frame building.
Examples of a stand-alone heavy structure which is installed next to a steel-frame building include a gasification furnace apparatus disclosed in PTL 1.
{PTL 1}
Japanese Unexamined Patent Application, Publication No. 2013-163760
When an extremely heavy (e.g., 200 t) and long (e.g., 60 m) stand-alone heavy structure such as the gasification furnace apparatus disclosed in PTL 1 is assembled, the following procedures are taken: arranging various members, which are discretely carried to an assembly site (construction site), in the longitudinal direction while being laid on their side; integrating the members by welding, annealing, incorporating built-in parts, etc.; and then pulling the whole of the integrated stand-alone heavy structure to stand up. In a conventional practice, a large-scale independent temporary gantry frame is built near the integrated stand-alone heavy structure, and the whole of the integrated stand-alone heavy structure is pulled to stand up using a crane which is installed on top of the temporary frame.
However, this temporary frame is no longer necessary after the whole of the integrated stand-alone heavy structure has been pulled to stand up, so that the temporary frame is removed and discarded, for which a wasteful construction cost is incurred.
On the other hand, a steel-frame building, which houses other devices, etc., is assembled next to the stand-alone heavy structure having been pulled to stand up, and the other devices, etc. are housed in this steel-frame building.
However, since the steel-frame building is a tall building (having a height almost equal to the height of the stand-alone heavy structure), a large crane with a long arm is required when the other devices, etc. are housed into the steel-frame building, which pushes up the construction cost.
The present invention has been made to solve the above problems, and an object of the present invention is to provide a steel-frame building which can reduce the construction cost, a plant, and a method for assembling a steel-frame building.
In order to solve the above-described problems, the present invention has adopted the following solutions:
A first aspect of the present invention is a steel-frame building which is installed permanently next to a stand-alone heavy structure, including a gantry frame which is used for pulling a whole of the stand-alone heavy structure to stand up.
According to this configuration, even after the stand-alone heavy structure which is installed next to the steel-frame building has been pulled to stand up by using the gantry frame, the gantry frame is not removed or discarded but is used as is as a section which constitutes a part of the steel-frame building.
Thus, the need for the conventionally required temporary frame is eliminated, so that a wasteful construction cost can be saved and the construction cost can be reduced.
In the first aspect, the gantry frame may be used for carrying in other devices to be housed in the steel-frame building.
According to this configuration, the gantry frame is used to carry the other devices into the steel-frame building, for example, by lifting these devices.
Thus, the need for the conventionally required large crane with a long arm is eliminated, so that the construction cost can be further reduced.
In the present invention, the permanently-installed steel-frame building refers to a building which is not only used for pulling up a stand-alone heavy structure and carrying in the other devices, but is also continuously used thereafter for purposes such as supporting the devices other than pulling up and carrying in.
A second aspect of the present invention is a plant including either one of the above-described steel-frame buildings.
According to this configuration, since the plant includes the steel-frame building, which is installed permanently next to a stand-alone heavy structure and can reduce the construction cost, the construction cost for constructing the plant can be reduced. The plant refers herein to a plant having a steel-frame building such as a chemical plant or an integrated coal gasification combined cycle plant.
A third aspect of the present invention is a method for assembling a steel-frame building which is installed permanently next to a stand-alone heavy structure, the method including the steps of: assembling sections which constitute major parts of the steel-frame building; and assembling a gantry frame which constitutes a part of the steel-frame building and which is used for pulling a whole of the stand-alone heavy structure to stand up.
According to this configuration, even after the stand-alone heavy structure which is installed next to the steel-frame building has been pulled to stand up using the gantry frame, the gantry frame is not removed or discarded but is used as is as a section which constitutes a part of the steel-frame building.
Thus, the need for the conventionally required temporary frame is eliminated, so that a wasteful construction cost can be saved and the construction cost can be reduced.
In the third aspect, the gantry frame may be used for carrying in other devices to be housed in the steel-frame building.
According to this configuration, the gantry frame is used to carry the other devices into the steel-frame building, for example, by lifting these devices.
Thus, the need for the conventionally required large crane with a long arm is eliminated, so that the construction cost can be further reduced.
According to the present invention, an advantage is afforded in that the construction cost can be reduced.
{FIG. 1}
{FIG. 2}
{FIG. 3}
{FIG. 4}
{FIG. 5}
{FIG. 6}
{FIG. 7}
{FIG. 8}
{FIG. 9}
{FIG. 10}
In the following, a steel-frame building, which is installed permanently next to a stand-alone heavy structure, according to one embodiment of the present invention will be described with reference to
A steel-frame building 10 which is installed permanently next to a stand-alone heavy structure (hereinafter called the “steel-frame building 10”) according to this embodiment includes: a gantry frame 14 including (first) columns 11, (first) beams 12, (first) vertical braces 13, and (first) horizontal braces (not shown); and (second) columns 21, (second) beams 22, (second) vertical braces 23, and (second) horizontal braces (not shown). The permanently-installed steel-frame building 10 refers to a building which is not only used for pulling up a stand-alone heavy structure (in this embodiment, a stand-alone (tower-type) gasification furnace apparatus) 31 and carrying in other devices, but is also used continuously thereafter for purposes such as supporting the devices other than pulling up and carrying in.
The column 11, which is a column used for pulling the whole of the integrated stand-alone heavy structure 31 to stand up, is thicker than the column 21 which constitutes a major part of the steel-frame building 10 (has a flange and a web of a larger plate thickness) and is made of tough H-steel.
The beam 12, which is a beam spanning the space between one column 11 and another column 11 and used for pulling the whole of the integrated stand-alone heavy structure 31 to stand up, is thicker than the beam 22 which constitutes a major part of the steel-frame building 10 (has a flange and a web of a larger plate thickness) and is made of tough H-steel.
The vertical brace 13, which is a brace provided in a vertical plane to connect the column 11 and the beam 12 in the height direction and used for pulling the whole of the integrated stand-alone heavy structure 31 to stand up, is thicker than the vertical brace 23 which constitutes a major part of the steel-frame building 10 (has a flange and a web of a larger plate thickness) and is made of tough H-steel.
The horizontal brace constituting the gantry frame 14, which is a brace provided in a horizontal plane to connect the column 11 and the beam 12 in the horizontal direction and used for pulling the whole of the integrated stand-alone heavy structure 31 to stand up, is thicker than the horizontal brace which constitutes a major part of the steel-frame building 10 (has a flange and a web of a larger plate thickness) and is made of tough H-steel.
The column 21, the beam 22, the vertical brace 23, and the horizontal brace (not shown) are a column, a beam, a vertical brace, and a horizontal brace, respectively, constituting a major part of the steel-frame building 10, and are made of H-steel having a thickness (the plate thickness of a flange and a web) required for housing other devices 24 to 28, etc.
Next, a method for assembling the steel-frame building installed permanently next to a stand-alone heavy structure, and a method for constructing a plant (in this embodiment, an integrated coal gasification combined cycle plant) including the steel-frame building installed permanently next to a stand-alone heavy structure will be described with reference to
First, as shown in
The integrated stand-alone heavy structure 31 is heavy yet can stand alone and requires no strong steel-frame structure for support, but the use of the gantry frame 14 is required to pull the whole of the stand-alone heavy structure 31 to stand up. On the other hand, the steel-frame building 10 installed permanently next to the stand-alone heavy structure 31 supports the various devices 24 to 28 to be described later. The part of this steel-frame building 10 being formed as the strong gantry frame 14 can pull up the whole of the stand-alone heavy structure 31 just like the conventional temporary gantry frame does.
When the gantry frame 14 can alone pull up the stand-alone heavy structure 31, the columns 21, the beams 22, the vertical braces 23, and the horizontal braces constituting a major part of the steel-frame building 10 may be sequentially assembled after the stand-alone heavy structure 31 has been pulled to stand up by using the gantry frame 14.
Subsequently, a crane 32 is installed on top of the gantry frame 14, and a wire 33 hung from the crane 32 is anchored at one end, which forms the top part of the stand-alone heavy structure 31, through a lifting jig 34, and the other end, which forms the bottom part of the stand-alone heavy structure 31, is loaded on a carriage 35 using a jack (not shown), etc.
Next, as shown in
Subsequently, as shown in
The intermediate steel frame 43 includes (third) columns 41 and (third) beams 42.
Next, after the stand-alone heavy structure 31 and the carriage 35 have been moved to a predetermined position, only the stand-alone heavy structure 31 is jacked up, and as shown in
Subsequently, as shown in
When the other devices 24 to 28, etc. have been carried into the steel-frame building 10, as shown in
The columns 11, the beams 12, the vertical braces 13, and the horizontal braces (not shown) constituting the gantry frame 14 are not removed or discarded but are utilized as they are as columns, beams, vertical braces, and horizontal braces constituting a part of the steel-frame building 10.
According to the steel-frame building 10 related to this embodiment, even after the stand-alone heavy structure 31 installed next to the steel-frame building 10 has been pulled to stand up by using the gantry frame 14, the gantry frame 14 is not removed or discarded but is used as is as a section constituting a part of the steel-frame building 10.
Thus, the need for the conventionally required temporary frame is eliminated, so that a wasteful construction cost can be saved and the construction cost can be reduced.
In addition, the gantry frame 14 can also be used for maintenance purposes during normal operation, periodic inspection, etc. of the gasification furnace 31 or other devices 24 to 28, so that the maintenance cost can be reduced and the construction period can be shortened.
According to the steel-frame building 10 related to this embodiment, the gantry frame 14 is used to lift and carry the other devices 24 to 28, etc. into the steel-frame building 10.
Thus, the need for the conventionally required large crane with a long arm is eliminated, so that the construction cost can be further reduced.
According to the method for assembling the steel-frame building 10 related to this embodiment, even after the stand-alone heavy structure 31 installed next to the steel-frame building 10 has been pulled to stand up using the gantry frame 14, the gantry frame 14 is not removed or discarded but is used as is as a section constituting a part of the steel-frame building 10.
Thus, the need for the conventionally required temporary frame is eliminated, so that a wasteful construction cost can be saved and the construction cost can be reduced.
According to the method for assembling the steel-frame building 10 related to this embodiment, the gantry frame 14 is used to lift and carry the other devices 24 to 28, etc. into the steel-frame building 10.
Thus, the need for the conventionally required large crane with a long arm is eliminated, so that the construction cost can be further reduced.
The present invention is not limited to the above-described embodiment, but can be implemented with appropriate modifications/changes made as necessary to it.
For example, in the above-described embodiment, one specific example has been described in which the stand-alone heavy structure 31 is pulled to stand up by installing the crane 32 on top of the gantry frame 14 and anchoring the wire 33 hung from the crane 32 at one end, which forms the top part of the stand-alone heavy structure 31, through the lifting jig 34. However, the present invention is not limited to this example, and the stand-alone heavy structure 31 may be pulled to stand up by installing the crane 32 at an intermediate part of the gantry frame 14, which is located above the center of gravity of the stand-alone heavy structure 31 when the stand-alone heavy structure 31 is pulled to stand up, and anchoring the wire 33 hung from the crane 32 at an intermediate part of the stand-alone heavy structure 31, which is located above the center of gravity of the stand-alone heavy structure 31, through the lifting jig 34.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2013-245224 | Nov 2013 | JP | national |
