JP2946074B2 - Large roof erection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing a large roof on an existing stadium stand, for example.

[0002]

BACKGROUND OF THE INVENTION In recent years, measures against rain in an open stadium without a roof have become increasingly important, and a method has been proposed in which a roof is erected on an existing stadium stand to cope with this. . By the way, in the case of a large structure such as an athletic stadium, where a large roof is erected on the stadium stand, it is necessary to install a large temporary stage etc. on the stadium stand. It will be severely restricted. In addition, since the work at a high place is occupied mostly, the danger is high, and the work of installing and removing the temporary materials requires a great deal of labor, and the cost is high. In addition, the stadium stands were not strong enough to support the weight of the large roof, and there was a problem with the safety of such stadium stands under heavy loads. .

[0003] Therefore, it was considered that a temporary stage was provided on the competition ground so as to connect the inside and the outside of the stadium, and a large roof erection work was carried out by relying on this.
This method has a problem that the ratio of the temporary construction is larger than that of the main construction, the construction period is significantly increased, and the construction cost is further increased.

[0004]

DISCLOSURE OF THE INVENTION An object of the present invention is to construct a large roof on an existing stadium stand so that the stadium can be used even during construction and the amount of temporary materials used is small. Eliminating the time required for removal, shortening the construction period and reducing construction costs, and also eliminating the need to bear the entire weight of the large roof on the existing stadium stand, making it easy to install the large roof It is an object of the present invention to provide a large-roof erection method with high safety.

[0005] An object of the present invention is a method of erection of a large roof on a stadium stand, comprising the steps of: erecting a main pillar at predetermined intervals around the stadium stand; A step of connecting the roof beam to the upper end of the main pillar, and a three-dimensional truss having a predetermined section of the roof beam as one side with the upper end of the main pillar as a base point. An assembling step, a step of attaching a temporary guy support, a step of attaching a temporary guy line to the three-dimensional truss via the temporary guy support, a step of roofing the roof beam, and tensioning the temporary guy line to cover the roof. And a step of causing it to be in a final state.

[0006] The temporary guy support is attached to a space truss or a main pillar so as to protrude outside the stadium stand. The roofing step is preferably performed in a state where the temporary guy line is temporarily tensioned and the erected roof beam is separated from the stand. Further, an object of the present invention is a method of erection of a large roof on a stadium stand, the step of erecting a main pillar at predetermined intervals around the stadium stand, Laying beams, connecting the laid roof beams to the upper ends of the main columns, attaching truss columns to the upper ends of the main columns, and This is achieved by a method for erection of a large roof, comprising the steps of attaching a wire, laying a roof on the roof beam, and tensioning the wire to cause the roof to be in a final state. .

It is preferable that the large roof erection method further includes a step of attaching a temporary guy support and a step of extending a temporary guy line to the truss column via the temporary guy support. Further, the step of roofing is preferably performed in a state where the wire is temporarily tensioned and the erected roof beam is separated from the stand.

[0008] Then, the above-described large roof erection method is performed, and after the roof is raised for each block, the raised roof is connected in a substantially annular shape, whereby the roof becomes self-supporting. That is, the large roof erection method of the present invention is based on the main pillars erected at predetermined intervals around the stadium stand,
For example, a large roof is erected on the stadium stand by raising the erected roof on the stadium stand using the upper end as a fulcrum.Therefore, it is necessary to provide a large temporary stage inside and outside the stadium stand. There is no stadium, and the stadium stand is used only temporarily during the construction work. Therefore, the use of the stadium is not restricted for a long period of time.

[0009] Since the amount of temporary materials used is extremely small, the troublesome work of installation and removal can be omitted, the construction period can be shortened, and the construction cost can be reduced. Furthermore, since the stadium stands do not bear the entire weight of the large roof, most of them are borne by main pillars and truss pillars, construction of the large roof should be carried out regardless of the strength of the stadium stand. And the safety of construction is high.

[0010]

1 to 10 show a first embodiment of a large roof erection method according to the present invention. FIG. 1 is a plan view showing a state in which a stadium stand is divided into large blocks, and FIG. FIG. 3 is a cross-sectional view showing a preparation process, FIG. 3 is a schematic view from the side showing an erecting process of a large pillar (main pillar), FIG. FIG. 6 is a schematic view from the side showing the process of mounting the space truss, FIG. 7 is a schematic view from the side showing the process of extending the temporary guy line, and FIG. FIG. 9 is a schematic view from the side showing a process, FIG. 9 is a perspective view showing an attached state of a space truss, FIG.
0 is a schematic side view showing the final tensioning step.

In FIG. 1 to FIG. 10, S is a stadium stand configured like a pickpocket, 1 is a temporary stage, 2 is a temporary support pillar, and 3 is a large pillar erected outside the stadium. ,
As shown in FIG. 4, the large pillar 3 is formed in an inverted V shape, and a hinge 4 is provided at an upper end thereof.
5 is a joining member for fixing the large pillar 3 to the outer wall of the stadium stand S.

Reference numeral 6 denotes a roof girder, 7 denotes a horizontal beam, and the roof girder 6 is rotatably connected to the large column 3 via a hinge 4. Reference numeral 8 denotes a temporary support block used for laying the roof girders 6, reference numeral 9 denotes a cable staying member that plays a role of suspending the roof in the final state, reference numeral 10 denotes a truss pillar that forms a part of an outer peripheral ring in a space truss, and reference numeral 11 denotes an adjacent truss. A ring beam connecting the tips of the pillars 10, that is, the stay members 9, the truss pillars 10, and the ring beams 11 become a part of an annular three-dimensional truss surrounding the stadium, and ultimately, the annular three-dimensional truss. The truss allows the roof to be self-supporting.

Reference numeral 12 denotes a temporary guy support provided at a right angle to the truss pillar 10, and reference numeral 13 denotes a temporary guy line extended from the upper end of the truss pillar 10 through the tip of the temporary guy support 12. That is, as can be seen from FIG. 7 and the like, the roof erected by pulling the temporary guide line 13 is raised using the upper end of the large pillar 3 as a fulcrum.

Reference numeral 14 denotes a roof, and reference numeral 15 denotes a wire for preventing fluttering stretched between the stadium stand S and the roof. The schematic procedure according to the large roof erection method of the present invention will be described with reference to FIG. 1. First, the stadium stand is divided into four blocks A, B, C, and D, and after the roof construction of the A block is started. Then, the construction of the facing B block is started, and the operation sequentially shifts to the C block and the D block.

Then, for example, the A block is composed of (a) to
It is divided into 5 units of (e), and preparation work, pillar / steel frame construction work, roof framing work,
Various works such as roofing work and final tensioning work will be implemented. Prior to this construction, first, the foundation (pile,
(Soil and foundation frame) Construction will be performed, but since all these constructions are performed outside the stadium, there is no hindrance to the use of the stadium.

After the completion of the foundation work, a temporary stage 1 and a temporary support column 2 are installed at the upper end of the stadium stand as a preparatory work, as shown in FIG. Subsequently, as shown in FIG. 3, the large pillar 3 with the hinge 4 attached to the upper end is erected outside the stadium. FIG. 4 shows the standing state of the large columns 3 as viewed from the front. As can be seen from FIG. 4, at the initial stage, two inverted V-shaped large columns 3 correspond to one roof unit. This is necessary, but in the subsequent stage, only one large pillar 3 needs to be erected for one roof unit.

After fixing the large pillar 3 to the outer wall of the stadium by the joining member 5, the roof girders 6 and the horizontal beams 7 are assembled using the temporary support blocks 8 installed on the stadium stand S, and the roof girders 6 are drawn. 5. Hinge 4 at upper end of large pillar 3 as shown in 5
Attach to The roof composed of the roof girders 6 and the cross beams 7 is not completely flat, but is assembled in a curved shape in consideration of the final shape.

Subsequently, the cable stay 9, the truss pillar 10 and the ring beam 11 are assembled using the temporary support pillar 2, and a three-dimensional truss as shown in FIG. 9 is formed. Then, the temporary guy support 12 and the temporary guy line 13 are attached as shown in FIG. 7, and the unnecessary temporary stage 1 and the temporary support pillar 2 are removed. After that, the temporary guy line 13 is pulled to cut off the roof, and as shown in FIG. 8, the temporary support block 8 is removed and the roof 14 is laid.

This state is as shown in the perspective view of FIG. 9, and as can be seen from this figure, the weight of the roof hardly hangs on the stadium stand S, and most of the weight of the roof is large columns. 3 and are supported by a space truss. And
In order to further pull the temporary guy line 13 to raise the roof as shown in FIG. 10 and prevent the roof from being blown by the wind, a wire 15 for preventing fluttering is mounted between the stadium stand S and the stadium.

The above steps are sequentially performed for the units (a) to (e), and the construction of the block A is completed. And
Similar work is sequentially performed for the blocks B, C, and D. When the blocks A to D are all completed, the space truss becomes a ring surrounding the stadium stand S, and after these are connected to each other, The large roof can stand at a predetermined position independently of the tension of the temporary guy line 13.

After that, the temporary guy support 12 and the temporary guy line 13 are removed, and the construction is completed. According to the large roof erection method of the present invention as described above, since the use of the stadium stand is temporary, there is no major obstacle to the operation of the stadium and there is no need to use the competition ground as a work area. Therefore, the competition ground is not subject to any restrictions.

Further, since the amount of the temporary material used is extremely small, the troublesome work of installation and removal thereof can be omitted, and the construction period can be shortened and the construction cost can be reduced. Furthermore, since the existing stadium stand hardly needs to bear the weight of the large roof, it is excellent in safety and the large roof can be erected regardless of the strength of the stadium. FIG.
17 to 17 show a second embodiment of the large roof erection method according to the present invention. FIG. 11 is a cross-sectional view showing a preparation step, and FIG. 12 is a schematic side view showing an erecting step of a large pillar. FIG.
Is a schematic view from the side showing a roof terrain process, FIG. 14 is a schematic view from the side showing a truss pillar mounting process, FIG. 15 is a schematic view from a side showing a temporary guy line extension process, FIG.
FIG. 17 is a perspective view showing a tensioned state of the wire, and FIG. 17 is a schematic view from the side showing a final tensioning step.

Also in this second embodiment, the basic technical concept is the same as that of the first embodiment. Therefore, the same members as those of the first embodiment are assigned the same reference numerals as those used in the first embodiment. The description is omitted. In FIGS. 11 to 17, reference numeral 16 denotes a truss column. Unlike the first embodiment, the truss column 16 is directly attached to the upper end of the large column 3.

Reference numeral 17 denotes a wire stretched between the roof girder 6 and the truss post 16, and reference numeral 18 denotes a hydraulic jack for pulling the wire 17. In the large roof erection method of the second embodiment, first, the same foundation work as that of the first embodiment is performed.
Thereafter, as a preparatory work, the temporary stage 1 is installed at the upper end of the stadium stand S as shown in FIG.

Subsequently, the large pillar 3 having the hinge 4 attached to the upper end is erected outside the stadium as shown in FIG. The large pillar 3 is formed in an inverted V-shape as in the first embodiment. After the erecting of the pillar 3 is completed, the roof is laid on the stadium stand S using the temporary support block 8, and the roof beam 6 is connected to the pillar 3 as shown in FIG.

After the framework of the roof is substantially completed, as shown in FIG. 14, a truss column 16 is erected on the upper end of the large column 3, and a temporary guy support 12 and a temporary guy line 13 are attached to the truss column 16. The truss column 16 is prevented from collapsing. Further, a wire 17 is stretched between the roof girder 6 and the truss pillar 16, and the wire 17 is temporarily tensioned by the hydraulic jack 18, and the roof is separated from the stadium stand S.

Then, as shown in FIG. 15, the temporary support block 8 is removed and the roof 14 is laid. The wire 17
16 is as shown in FIG. 16. As can be seen from FIG. 16, the weight of the roof is hardly applied to the stadium stand S, and most of the weight of the roof is 3
And supported by wires 17. The roof assembled as described above is fully tensioned by operating the hydraulic jack 18 to raise it to a predetermined angle as shown in FIG.
In order to prevent the roof from being lifted by the wind, a wire 15 for preventing the lift is attached.

Finally, a bar-shaped cable staying member or the like is assembled in place of the wire 15, the wire 17 is removed, and the temporary guy support 12 and the temporary guy line 13 are removed. These steps are sequentially performed for the units (a) to (e) to complete the construction of the block A, and the same construction is performed for the blocks B, C, and D to complete the large roof. That is, in the second embodiment as well, the stadium can be used during construction, as in the first embodiment, saving labor and reducing costs, and furthermore, the existing stand hardly bears the weight of the roof. Therefore, a feature such as high safety in strength is obtained, and in particular, since the roof is pulled up via a wire, the angle of the roof can be freely adjusted.

[0029]

According to the present invention, when a large roof is erected on an existing stadium stand, the stadium can be used even during construction, and the amount of temporary materials used is small, so that installation and removal work is troublesome. And the construction period can be shortened and the construction cost can be reduced.In addition, there is no need to bear the entire weight of the large roof on the existing stadium stand, and the large roof can be erected regardless of the strength of the stadium stand. it can.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state where a stadium stand is divided into large blocks.

FIG. 2 is a cross-sectional view showing a preparation step in the first embodiment.

FIG. 3 is a schematic side view showing a step of erecting a large pillar in the first embodiment.

FIG. 4 is a schematic view from the front showing a standing state of a large pillar in the first embodiment.

FIG. 5 is a schematic side view showing a roof laying process in the first embodiment.

FIG. 6 is a schematic side view showing a mounting step of the space truss in the first embodiment.

FIG. 7 is a schematic side view showing a step of extending a temporary guide line in the first embodiment.

FIG. 8 is a schematic side view showing a roofing step in the first embodiment.

FIG. 9 is a perspective view showing an attached state of the space truss in the first embodiment.

FIG. 10 is a schematic side view showing a final tensioning step in the first embodiment.

FIG. 11 is a sectional view showing a preparation step in the second embodiment.

FIG. 12 is a schematic side view showing a step of erecting a large pillar in a second embodiment.

FIG. 13 is a schematic side view showing a roof laying process in the second embodiment.

FIG. 14 is a schematic side view showing a step of extending a temporary guy line in the second embodiment.

FIG. 15 is a schematic side view showing a roofing step in the second embodiment.

FIG. 16 is a perspective view showing a state where wires are stretched in the second embodiment.

FIG. 17 is a schematic side view showing a final tensioning step in the second embodiment.

[Explanation of symbols]

 S Stadium stand 1 Temporary stage 2 Temporary support pillar 3 Large pillar 4 Hinge 5 Connecting member 6 Roof girder 7 Cross beam 8 Temporary support block 9 Cable stay 10, 16 Truss pillar 11 Ring beam 12 Temporary guy support 13 Temporary guy line 14 Roof 15 Wire 17 for preventing fluttering 17 Wire 18 hydraulic jack

Claims (9)

(57) [Claims] 1. A method of erection of a large roof on a stadium stand, comprising: erecting main pillars at predetermined intervals around the stadium stand; Connecting the erected roof beam to the upper end of the main pillar; assembling a three-dimensional truss having the upper end of the main pillar as a base and a predetermined section of the roof beam as one side; A step of attaching a guy support, a step of attaching a temporary guy line to the space truss via the temporary guy support, a step of roofing the roof beam, and tensioning the temporary guy line so that the roof is in a final state. A method for erection of a large roof. 2. The method according to claim 1, further comprising the step of connecting the roof raised for each block in a substantially annular shape. 3. The method according to claim 1, wherein the temporary guy support is attached to the space truss so as to protrude outside the stadium stand. 4. The method according to claim 1, wherein the temporary guy support is attached to the main pillar so as to protrude outside the stadium stand. 5. The large roof erection method according to claim 1, wherein the step of roofing is performed in a state where the temporary guy line is temporarily tensioned and the erected roof beam is separated from the stand. 6. A method of erection of a large roof on a stadium stand, comprising: erecting a main pillar at predetermined intervals around the stadium stand; Connecting the erected roof beam to the upper end of the main column, attaching a truss column to the upper end of the main column, and attaching a wire between the truss column and the roof beam. And a step of laying a roof on the roof beam, and a step of tensioning the wire to cause the roof to be in a final state. 7. The method according to claim 6, further comprising the step of connecting the roof raised for each block in a substantially annular shape. 8. The method according to claim 6, further comprising a step of attaching a temporary guy support and a step of extending a temporary guy line on the truss column via the temporary guy support. 9. The large roof erection method according to claim 6, wherein the step of roofing is performed in a state where the wire is temporarily tensioned and the erected roof beam is separated from the stand.