JP2002266434A - Method of constructing cable dome - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of constructing a cable dome eliminating the drawback with a conventional construction method: that it needs a number of timbering members to be installed on the surface of the ground, increasing the costs of materials, labor, and construction work. SOLUTION: The method of constructing a cable dome comprises a process for forming a dome roof on the surface of the ground; a process for erecting outer peripheral timbering members by erecting a small-diameter outer peripheral inner ring and a large-diameter outer peripheral outer ring at each of top ends radially disposed outside an inner peripheral ring; a process for providing a ring connector, with the inner ring rotatably connected to the rear end of the ring connector, and with the separated outer ring fixed to the front end of the ring connector; a process for lifting the dome roof to an erection height by pointing the front end of the ring connector inwards, connecting the outer ring to the inner peripheral ring using a suspension cable, and pointing the front end of the ring connector outward; and a process for connecting the inner peripheral ring to the inner ring by use of a retaining cable, while holding at the erection height the outer ring and the inner peripheral ring which are combined into the shape of an annulus with the divided portions of the outer ring connected to one another.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dome roof method for covering a large area such as a stadium and the like so as to form a space in which a game or the like can be performed inside regardless of rainy weather. The dome-shaped roof structure was supported by using a cable stretched from an inner ring and an outer ring arranged on the outer edge of the truss-shaped opening and closing roof,
Related to the cable dome construction method.

[0002]

2. Description of the Related Art At present, a large area facility such as a stadium (hereinafter referred to as a ground surface) is covered so that a game or an event can be held regardless of rainy weather. The development of a dome roof that allows many spectators to concentrate on sports and the like without getting wet with rain has been promoted, and such facilities have already been manufactured and used in various places. Among such dome roofs, it has been conventionally practiced to manufacture a dome roof (hereinafter, referred to as an openable roof) that covers the ground surface with a cable stretched between an outer ring and an inner ring. Have been done.

[0003] Fig. 6 shows an opening / closing roof formed at a predetermined height above the ground surface by using a shoring, and an inner ring provided on the outer peripheral edge of the opening / closing roof and an outer ring provided outside the stadium. FIG. 2 is a view showing an example of a conventional cable dome construction method in which the open / close roof is supported at a predetermined height that does not hinder the use of the ground surface. Such a cable dome construction method is performed according to the procedure of the construction method flow shown in FIG. As shown in the flow chart of the construction method, in the cable dome construction method, first, the position where the open / close roof 01 of the ground surface 012 is provided, that is, the ground surface 012 where the truss-like frame 03 forming the framework of the open / close roof 01 is erected. A shoring is erected on top.

[0004] That is, in such an openable roof 01, one end is fixed at an equal pitch in the circumferential direction of the inner peripheral ring 02 and the inner peripheral ring 02, and the other end is gathered and joined at substantially the center of the inner peripheral ring 02. Ten truss-shaped frames 03 and truss-shaped frames 03
The truss-shaped frame 03 is formed in a circular arc-shaped side surface that is raised from the joint with the inner peripheral ring 02 to the center of the inner peripheral ring 02, for example, 150 kg / m ^{2 to} 200 kg /
are those of the weight of m ^2, the weight of the entire opening and closing the roof 01,
It has a diameter of 100 m and a size of about 1200 tons.

Therefore, in order to install the open / close roof 01 at a predetermined height on the ground surface, as shown in FIG. Below dozens of truss-like frames 03
At least three supporters 04 capable of supporting these weights
It is necessary to further install, and furthermore, the supporter 04 that is accurately arranged and erected below each truss-shaped frame 03 having an arcuate side shape is provided at a radial position that supports the truss-shaped frame 03. They need to be of different heights.

In addition, the supporter 04 needs to be erected outside the stadium in order to arrange an outer peripheral ring for connecting the other end of the cable 05 supporting the open / close roof 01.
In addition, the supporters 04 standing outside the stadium are arranged at equal pitches to connect one ends of the two cables 05 for supporting the open / close roof 01 installed above the ground surface 012. The two truss-shaped frames 03 are erected two by two on the outer circumference of the extension line.

[0007] The ground surface 012 and the supporter 04 standing outside the baseball stadium are not integrated, but are formed by stacking modules of a predetermined length to a predetermined height. In standing, the modules arranged above are jacked up, the modules are inserted below the jacks, and the modules are jacked up one by one, so that the support 04 having a predetermined height is
Is to be erected.

As described above, the supporter 04 is connected to the ground surface 01.
After being erected on the ground surface 012 and above the ball ground 012, an inner peripheral ring 02 is erected at the top end of the erection work 04 arranged on the outermost periphery among the erection works 04 erected on the ground surface 012, Of the two supporters 04 standing outside the stadium, the supporter 04 standing on the inner peripheral side (hereinafter referred to as the inner peripheral side supporter)
And an outer peripheral ring made of an outer peripheral ring 07 is installed on the top end of a supporter 04 (hereinafter referred to as an outer peripheral supporter) erected on the outer peripheral side.

The outer inner ring 06 and the outer outer ring 07 are connected by a ring connector 08, and a relative displacement including a predetermined height difference between the outer inner ring 06 and the outer outer ring 07 occurs. I try not to. Thus, each ring 02,0
After 6 and 07 are arranged at the top end of each supporter 04, the opening and closing roof 01 is erected.

The inner peripheral ring 02 and the outer peripheral ring are erected on the top end of each shoring 04 for convenience of explanation, but the case of erection on the erected shoring 04 has been described. 02, 06, and 07 are respectively installed at the top ends, and the modularized supporters 04 can be jacked up sequentially to set up the supporters 04 of a predetermined height. That is, the arrangement of each ring 02, 06, 07 at the top end of each supporter 04 is arranged at the top end of the module arranged at the uppermost end arranged close to the ground, and together with the jack-up of the module, The rings 02, 06, 07 and the ring connector 08 can be raised to a predetermined height.

However, in this case, each ring 02, 06, 0
There is a problem in that the modules arranged at the lower part in the circumferential direction of jack 7 are simultaneously jacked up to a predetermined height, or there is a problem that the jack-up force is increased, but each ring 02, 06, 07 erection work disappeared,
An advantage in terms of safety and an advantage that mounting work of each of the rings 02, 06, and 07 is facilitated and mounting accuracy can be improved are obtained.

Next, the ring 02 erected at a predetermined height is
The truss-like frame block 010 obtained by cutting the truss-like frame 03 in the longitudinal direction is lifted by a crane truck 09 on the ground. For this reason, the length of the truss-shaped frame block 010 is longer than the length at which both ends can be placed on the top end of the supporter 04 radiating from the center of the ring 02 and standing upright next to the supporter 04. However, depending on the lifting capacity of the crane car 09, the crane car 09, which is cut to a length shorter than the interval between the adjacent supporters 04, is lifted, and is sequentially connected from the inner peripheral ring 02 side in the lifting state. In addition, one end is connected to the inner peripheral ring 02, and the other end is connected at a substantially central position of the inner peripheral ring 02, and several tens of truss-like frames are radiated from substantially the center of the inner peripheral ring 02. 03 can also form the open / close roof 01.

After the truss-like frame 03 is erected on the top end of the supporter 04 on the ground surface 012 and the open / close roof 01 is erected,
The cable 05 for supporting the open / close roof 01 including the truss-like frame 03, the inner peripheral link 02, and the like is installed.

The cable 05 is installed by connecting one end of the cable 05 to the inner ring 02 at a position where one end of the truss-like frame 01 is connected, and connecting the other end to the outer outer ring 07 and the outer inner ring 06. The truss-like frame 03 is held at the respective positions (heights) of the inner peripheral ring 02 formed inside the truss-like frame 03, in other words, the openable roof 01, by the two cables 05 which are connected to each other. ing.

Of these cables 05, the cable 0 connecting the inner ring 02 and the outer ring 07
5 is installed in a substantially horizontal state or slightly elevated on the outer ring outer ring 07 side so as to support the weight of the open / close roof 01.
6 is connected to outer peripheral inner ring 0.
For example, when the interval between the inner peripheral ring 02 and the outer peripheral inner ring 06 is set to about 50 m so that the inner peripheral ring 06 is lower, the cable 05 is installed so that the outer peripheral inner ring 06 is lower by about 10 m, and the open / close roof 01 is opened. Resistance to blowing up.

For this reason, when the outer ring is installed, the ring connector 08 that connects the outer inner ring 06 and the outer outer ring 07 is connected to the cable 05 as described above. The inclination is set so as to connect the top ends of the outer peripheral inner ring 06 and the outer peripheral outer ring 07. Conversely, a ring connector 08 is provided between the support 4 (the inner support) on which the outer inner ring 06 is installed and the support (the outer support) on which the outer outer ring 07 is installed.
There is provided a height difference that can set the inclination of.

As described above, the radial truss-shaped frame 03 is formed above the ground plane 012, and after the cables 05 are erected, the tension of each cable 05 is adjusted.
This cable tension adjustment is performed by measuring the tension of each cable 05 using a load cell or the like provided on each cable 05, and winding the other end of each cable 05 bridged around the outer peripheral inner ring 06 and the outer peripheral ring 07 around a drum. By driving a winch (not shown) that is to be turned, the cable 05 with a small tension is wound around the drum, and the cable 05 with a large tension is unwound,
Each is designed to introduce the cable tension specified in the design.

Conversely, by introducing the cable tension determined by the design in this way, the open / close roof 01 formed of the inner peripheral ring 02, in other words, the truss-like frame 03 arranged radially, etc. , At a height and a posture as designed, and installed above the ground plane 012. As described above, after the tension of each cable 05 whose one end is connected to the outer peripheral side of the inner peripheral ring 02 is introduced, the other end of each cable 05 is connected to the outer peripheral inner ring 06 and the outer peripheral ring 07, and then the outer peripheral inner ring 07 is connected. The ring 06 is connected to the support, and the load applied to the supporter 04 is transferred to the support.

[0019] The struts from outside are inclined inwardly in 支保 Engineering 04 outside the stadium as shown in FIG. 1 (the outer peripheral side shoring), provided for several of 支保 Engineering 04 diameter Support pillar 7
And a small-diameter support column, not shown, which is inclined outward from the base end of the outer wall 011 of the stadium, and whose upper end is connected to the upper end of each supporter 04. Further, since the tension applied to the outer peripheral outer ring 07 is transmitted to the outer peripheral inner ring 06 via the ring connector 08, by supporting the outer peripheral inner ring 06 with the support without providing such a support, Along with the load applied to the supporter 04 supporting the outer peripheral inner ring 06, the load applied to the supporter 04 supporting the outer peripheral outer ring 07 can be eliminated by applying a load to the column.

As described above, after the load applied to the supporter 04 standing outside the stadium is transferred to the column, the supporter 04 is removed, so that the truss-like frame 03 is placed above the stadium. The open / close roof 01 is completed, and then a light-weight covering material made of lightweight steel, a film material, a resin plate, or the like is provided in close contact with the upper part of the truss-like frame 03, whereby the open / close roof 01 can be manufactured.

However, the cable dome manufactured in such a process requires a large number of supports to be erected in the manufacturing process. In particular, at least a few tens of truss-shaped frames 03 on the ground surface 012 are required. More than twice as many supports need to be erected, requiring a large number of supports, and requiring a huge amount of materials, labor and construction costs.

Further, when such a cable dome is erected on an existing ballpark, reinforcement of the existing ballpark, particularly reinforcement of the ground surface 012 for installing a large number of shorings 04, becomes necessary. The installation of No. 04 significantly damaged the ground plane 012 over a wide area and required a large amount of cost to recover it. Also, many supports were erected on the ground plane 012, and after the cable dome was completed, It is necessary to remove the shoring, and there is a problem that the ground plane 012 becomes unusable for a long time.

In addition, in assembling and inspecting the truss-like frame 03, there are many problems of work at high places in an unstable state, so that there is a problem that a large amount of fall curing and safety facilities are required.

[0024]

The present invention invention is to solve the above, the failure of conventional cable dome construction methods can be made to decrease by a large margin the 支保 factory to be installed in the ground surface to eliminate, enormous material, labor, the construction cost It is not necessary, and there is also a reduction in the support of the ground surface and a reduction in the load applied to the support.Therefore, it is not necessary to reinforce the ground surface. With little damage, the cost required for restoration can be significantly reduced, and the construction period can be shortened, so that the occupation period of the ground surface can be shortened.
An object of the present invention is to provide a method of constructing a cable dome which requires almost no equipment and facilities for work safety.

[0025]

Therefore, the first method of constructing a cable dome according to the present invention employs the following means.

(1) A cable dome construction method in which a dome roof is erected at a predetermined height above the ground plane by the tension of the cable connected to the outer circumference of the inner peripheral ring, and the inner peripheral ring is assembled on the ground plane by the cable dome construction method. A process of arranging truss-like frames radially from the inner center to form a dome roof,
(2) Radially arranged at intervals on the outside of the inner ring, specifically on the outer wall of the existing ballpark that forms the dome roof, and each top end has a larger diameter than the inner ring. Jacking up and erecting a supporting structure for erection of an outer ring composed of an outer ring and an outer ring having a larger diameter than the outer ring; (3) a vertical plane perpendicular to the axis of the outer ring; An outer periphery whose base end is pivotally connected to a member protruding from the outer periphery of the outer peripheral inner ring, or is rotatably connected to the outer periphery of the outer peripheral inner ring, and whose distal end is divided in the circumferential direction so that it can rotate inside. Providing a ring connector fixed to the outer ring and having both ends connected to the respective outer peripheral rings; (4) rotating the ring connector around the outer peripheral inner ring outer periphery;
With the distal end facing the inner ring, the outer ring connected to the end of the ring connector and the inner ring are connected by a suspension cable, and one end is connected to the outer ring to pull from the outer ring. The ring connector is turned to the outside of the inner ring on the opposite side by the tension or the like applied to the traction cable, and the movement of the tip of the ring connector in the vertical plane due to the rotation causes the ground to be grounded. (5) Lifting the dome roof on the surface to the erection height, (5) Lifting the dome roof, and connecting the circumferentially divided portions of the outer peripheral ring placed on the top end of the outer peripheral support to form an annular outer periphery With the tension of the suspension cable that connects the outer ring and the inner ring, the dome roof is held at the erected height,
A step of connecting between the inner ring and the outer inner ring with a restraining cable that resists blowing of the dome roof due to wind or the like; (a) the cable dome construction method of the present invention includes:
Since the above-mentioned means (1) to (5) are adopted, the dome roof assembled on the ground is lifted by the rotation of the ring connector that rotates around the outer periphery of the outer peripheral inner ring provided on the top end of the outer peripheral support. Can reduce the number of erections for erecting the dome roof to 1/10 or less. In particular, the number of erections erected on the ground surface can be reduced, and materials, labor, and construction costs can be reduced. And the erection period of the dome roof can be shortened.

[0027] Further, since the height of the erection on the ground surface at the time of manufacturing the dome roof is low and lightweight, the reinforcement of the ground surface for manufacturing the dome roof can be reduced, and further, the ground surface can be reduced. The damage that occurs in the vehicle can be made small, and the cost required for the recovery can be greatly reduced. In addition, production of the dome roof is carried out on the ground, there is no assembly work of the truss-like skeleton at heights on 支保 engineering, it is possible to reduce the aerial work is safety due to the aerial work can be significantly reduced problem, Costs required for ensuring safety can be reduced.

The second method of constructing a cable dome according to the present invention employs the following means.

(6) A step of forming a dome roof in the same manner as in the above (1), (7) An outer peripheral ring which is disposed outside the inner peripheral ring and is mounted at a high end at a tip end is fixed. An inner circumference in which the outer peripheral inner ring is fixed to the module arranged at the top end at the end, and the base end of the inclined ring connector determined by the height of the outer outer ring and the outer peripheral inner ring is fixed to the top end. Jacking up the side shoring by jacking up, etc. (8) Penetrating the center of the formed dome roof and jacking up the center shoring with the tower crane at the top end to the center of the inner ring (9) Connect the lower end of the lifting cable suspended from the tower crane to several places in the circumferential direction such as the center ring provided at the center of the dome roof, and wind up the lifting cable Lifting the dome roof to the erected height, (10) maintaining the dome roof at the erected height by the tension of a suspension cable connecting the outer peripheral ring and the inner peripheral ring, and maintaining the inner peripheral ring and the outer peripheral ring (B) The cable dome construction method of the present invention employs the above-described means (6) to (10). It is necessary to provide one central supporter at the height to install the dome roof in the area, but the number of outer peripheral supports provided at the existing stadium can be reduced to about 1/2, and it can be further reduced, so the materials required for erecting the supporter , Labor and construction costs can be further reduced. In addition, reinforcement of the ground surface for providing one center support on the ground surface, and damage to the ground surface are limited to a narrow range, and the cost and repair work required for it can be reduced.

Further, the joining work of the divided outer outer ring on the outer peripheral side support work becomes unnecessary, work at high places can be reduced, safety problems can be reduced, and the equipment cost required for these works can be reduced. Can be reduced.

The third method of constructing a cable dome according to the present invention employs the following means.

(11) A step of forming a dome roof in the same manner as in (1) above, (12) A step of erecting an inner peripheral side support in the same manner as in (7) above, and (13) an inner periphery on the ground plane. A step of connecting the ring and an outer peripheral ring fixed to the top end of a ring connector whose base end is fixed to the top end of the standing inner peripheral side support with a suspension cable, (14) a dome assembled on the ground The step of erecting the center support at the center of the inner peripheral ring by bringing the top end into contact with the center of the roof and jacking up the dome roof to the erection height. (15) Erecting the suspended dome roof Suspended cables supporting the weight of the dome roof connecting between the inner ring and the outer ring and between the inner ring and the outer ring, Usually Introducing tension to suppress cable, (c) cable dome construction methods of the present invention, described above (11) Since it employs the ~ (15), the first embodiment
As compared with the second embodiment, the stability of the dome roof when the dome roof is raised to the erection height can be held by the suspension cable and the holding cable, and the dome roof is stable without requiring any special device. Can be lifted.

The fourth method for constructing a cable dome according to the present invention employs the following means.

(16) A step of forming a dome roof in the same manner as in (1) above, (17) A step of erecting the inner peripheral support in the same manner as in (7) above, and (18) an inner part assembled on the ground. A ring supporter is installed that jacks up the dome roof, which is arranged at equal pitches in the circumferential direction below the circumferential ring and has a truss-like frame assembled inside the inner circumferential ring assembled on the ground, to a height equal to or higher than the installation height. (19) A step of connecting the inner ring and the outer ring of the suspended dome roof with a suspension cable and connecting them with a restraining cable, (20) Lowering the dome roof suspended above the erection height to the erection height To introduce tension into the suspension cable,
The process of introducing tension to the restraining cable, which resists blowing up such as wind, separately from the introduction of tension to the suspension cable,
(D) The cable dome construction method of the present invention is as described in (16) above.
Since the means of (20) to (20) are employed, the dome roof suspended above the erection height is lowered to the erection height to form a suspension cable as compared with the first, second, and third embodiments. In addition to introducing tension into the suspension cable, separately from introducing tension into the suspension cable, tension is introduced into the suppression cable that resists blowing up, such as wind. The applied tension can stably hold the dome roof, resists the blowing of the dome roof even in a strong wind, and stably build the dome roof on the ground surface.

The fifth method of constructing a cable dome according to the present invention employs the following means.

(21) In the same manner as in any of the above-mentioned steps (4), (9), and (14), the step of lifting the dome roof to the erection height includes the same dome roof as the step (18). In the step of lifting the dome roof to a height equal to or higher than the erection height, the inner ring, the outer ring, and the outer ring of the dome roof suspended above the erection height may be any one of the above (5), (10), and (15). in the same manner as the step, after introducing the ligated or tension hanging cables and suppressing cable, is lowered until erection height from above (20) of the step and the above construction height in the same manner, hanging occurs in load of the dome roof The process of maintaining the dome roof at the erection height by the tension of the cable, and introducing tension to the restraining cable that resists the blowing up of wind and the like.

(E) The cable dome construction method of the present invention
Since the above-mentioned means (21) is adopted, the first embodiment,
In addition to the actions and effects of the second and third embodiments, the above (d)
The same operation and effect as those described above can be obtained.

[0038]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the method for constructing a cable dome according to the present invention will be described below with reference to the drawings. In the drawings, the same or similar members as those shown in FIG. 6 are denoted by the same reference numerals, and detailed description thereof will be omitted. In each of the embodiments, a case in which an opening / closing roof is installed above an existing ground surface will be described. ,explain.

FIG. 1 is a view showing a first embodiment of a cable dome construction method according to the present invention. An outer wall 011 is provided around an outer periphery of a ground surface 012, and is directed upward from the top end of the outer wall 011 to the ground surface 012. The roof 1 is provided, and the open / close roof 01 is provided with a truss-like frame 03 above the ground surface 012 of an existing stadium / existing stadium 3 (hereinafter referred to as an existing stadium) in which the stand 2 is formed toward the ground surface 012. Things.

First, as shown in FIG. 1A, the inner peripheral ring 02 is assembled on the ground surface
An inner support 5 and an outer support 4 are erected outside the outer periphery 11. Further, at the top end of the outer peripheral side support 4, an outer peripheral outer ring 07 which is divided into the same number as the truss-shaped frames 03 arranged in the circumferential direction and which can be formed in an annular shape when these divided portions are connected is provided. One end is connected to each of the divided outer outer rings 07, and a ring connector inner peripheral side support 5 having a length substantially equal to the amount of overhang of the roof 1 is provided at the top end of an annular outer inner ring. A ring 06 is provided.

The other end of the ring connector 08, one end of which is connected to the outer peripheral ring 07, is pivotally connected to a bracket fixed to the outer peripheral ring 06 with a pivot pin, and the outer peripheral ring 07 is rotated in a vertical plane. It is connected to the outer peripheral inner ring 06 as much as possible. The outer peripheral inner ring 06 is also divided in the circumferential direction in the same manner as the outer peripheral ring 07, and each divided piece is rotatably attached to the top end of the inner peripheral side support 5.
8 can also be fixedly attached to the outer periphery of the outer peripheral inner ring 06.

Next, as shown in FIG. 1 (b), the placed outer peripheral support 4 and the inner peripheral support 5 having the outer inner ring 06 connected to the top end are sequentially jacked up to form an outer outer ring. In addition to increasing the height of the outer peripheral side support 4 and the inner peripheral side support 5 by adding a module constituting each of the supports 4 and 5 to the top end of the divided piece 07, the outer periphery of the outer peripheral inner ring 06 is increased. When the inner peripheral side support 5 is raised to a height that does not hinder the rotation of the ring connector 08 from being obstructed by the outer wall 012, the ring connector 08 is rotated around the outer periphery of the inner ring 06. To rotate.

As a result, the outer peripheral ring 07 connected to one end of the ring connector 08 and divided into
The inner peripheral ring 02 is separated from the inner peripheral ring 02 by the suspension cable 6 without being obstructed by the roof 1 provided above the outer wall 011. Can be connected. Also, in parallel with the operation of increasing the height of the outer peripheral support 4 and the inner peripheral support 5, the open / close roof 01 is formed using a truss-like frame 03 inside the inner peripheral ring 02. I have.

In the manufacture of the open / close roof 01, the module of the support 4 is arranged below the inner peripheral ring 02 so that the height of the inner peripheral ring 02 is slightly increased, so that the work of manufacturing the open / close roof 01 can be performed. At the same time, the outer peripheral ring 07 arranged at a lower position can be connected to the inner peripheral ring 02 by the suspension cable 6 without interfering with the roof 1.

Further, several stages of modules are stacked at the center of the open / close roof 01 manufactured on the ground so that one end of the truss-like frame 03 can be placed thereon, and the shape of the open / close roof 01 during operation is designed. It is easy to manufacture according to value.

However, as apparent from FIG. 1B, the module (support) 04 installed below the inner peripheral ring 02 and at the center of the inner peripheral ring 02 has a height as shown in FIG. It does not need to be made, but may be low.

In the state shown in FIG. 1 (b), the pulling cable 16 having one end connected to the divided piece of the outer ring 07 is pulled outward by using a winch or the like.
As shown in (c), the open / close roof 01 is lifted up to a required height above the ground surface 012, and the outer peripheral outer ring 07 is again placed on the top end of the outer peripheral support 4.
In this state, the divided portions of the outer ring outer ring 07 that have been split are joined to form the inner ring 02 and the outer ring 0.
6, the open / close roof 01 can be held at a required height by the tension of the suspension cable 6 connecting the inner peripheral ring 02 and the outer peripheral ring 07.

Thereafter, as described in the conventional construction method, the tension of the suspension cables 6 stretched at equal pitches in the circumferential direction of the inner peripheral ring 02 is adjusted, and the suspension cables 6 are rotatable about the outer peripheral inner ring 06. After fixing the ring connector 08 to the outer peripheral inner ring 06, as shown in FIG. 1D, the outer peripheral inner ring 06 and the inner peripheral ring 02 are connected by the cable 8, and then the inner peripheral side by the outer circumference inner ring 06 which is supported for coupling to the support column 7 by 5, is loaded on the outer peripheral outer ring 07 and the outer inner ring 06 is supported on the outer peripheral side 支保 Engineering 4 and the inner peripheral side 支保 Engineering 5 The existing load is transferred to this support column 7, and these supports 4,
By removing 5, the cable dome roof can be manufactured.

In the cable dome construction method of the present embodiment, the above-mentioned means is adopted.
Is reduced by 1/10, and the supporter 04 provided on the ground plane 012 may be short, so that damage to the ground plane 012 can be minimized. Therefore, it is almost unnecessary to erection of the tall supporter 04 on the ground surface 012, and the necessary materials, labor and construction costs can be reduced, and the cost required for repairing the ground surface 012 damage is greatly reduced. Can be reduced.

Further, since it is not necessary to provide the supporter 04 on the ground plane 012, the period during which the ground plane 012 cannot be used can be shortened. The work for forming the frame-shaped frame 03 is eliminated, and the outer peripheral outer ring 0
Since only the connection work of 7 is required, work at a high place can be reduced, safety problems can be reduced, and a device required for safety can be simplified.

Next, FIG. 2 shows a second embodiment of the cable dome construction method of the present invention. In the cable dome construction method of the present embodiment, the ground plane 01 shown in FIG.
2 at the approximate center of the inner ring 02 manufactured on FIG.
(B) As shown in (b), a tall central supporter 9 erected to the height at which the opening / closing roof 01 is installed is erected, and an opening / closing manufactured on the ground by a tower crane 10 installed at the top end of the central supporter 9. The roof 01 is erected above the ground plane 012 which is suspended to the installation height.

The height of the outer peripheral support 4 is such that a ring connector 08 in which an outer peripheral outer ring 07 and an outer peripheral inner ring 06 are connected and fixed to both ends is provided with an opening / closing roof 01.
Is held at a predetermined height so that it can be inclined when holding and holding the ring connector 08, in other words, the lower end of the ring connector 08 is at the top end of the inner peripheral support 5. In the fixed state, as shown in FIG. 2 (b), the inner peripheral side support 5 connected to the top end with the outer peripheral inner ring 06 is jacked up, modules are sequentially added, and the height is increased. The height is set to a predetermined height so that the suspension cable 6 and the holding cable 8 can support the height.

On the other hand, the center supporter 9 at the center of the inner peripheral ring 02 together with the jacking-up of the inner peripheral side supporter 5 adds the module to the same height as the jacking up and the opening and closing roof 01 is erected. After erecting, central support 9
While installing a plurality of tower cranes 10 on the top of
Inside the inner ring 02, the opening and closing roof 01 is assembled. At the center of the roof 01 assembled on the ground, there is provided a center ring provided with a hole large enough to allow the above-described center support 8 to pass therethrough. Ten truss-shaped frames 03
Is connected to the inner ring 02 and the other end is connected to the central ring to form an open / close roof 01 composed of a truss-like frame 03.

Next, as shown in FIG. 2 (c), a plurality of lifting cables 11 are suspended from the tower crane 10, and the lower ends of the lifting cables 11 are connected to the above-mentioned center ring or the like. By driving and raising and lowering the cable 11, the inner peripheral ring 02 and the open / close roof 01 manufactured on the ground can be raised to the erected height in a lump. When the inner ring 02 and the opening / closing roof 01 are raised, at least three or more temporary cables 12 are suspended from the circumferential direction of the inner ring 02 to maintain a posture balance, and the tension of the temporary cable 12 is controlled. Thus, the level of the opening and closing roof 01 is raised to the top of the center support 9 while the level of the opening and closing roof 01 is adjusted.

When the open / close roof 01 reaches the top of the central support 9, the outer periphery fixed to the inner peripheral ring 02 and the top end of the inner peripheral support 5 erected via the ring connector 08. The outer ring 07 is connected with the suspension cable 6, and the inner peripheral ring 02 and the outer peripheral inner ring 06 are connected.
And connect them with the cable 8.

Next, after adjusting the tension of the suspension cable 6 and the holding cable 8 laid outward at equal intervals from the inner peripheral ring 02, the support column 7 is connected to the outer peripheral inner ring 06, and the center support By removing the inner support 9 and the inner peripheral support 5, as shown in FIG.
2, the roof 01 can be installed at a predetermined height on the ground 2, specifically, a height that does not hinder an event to be performed on the ground surface.

In the cable dome construction method of the present embodiment, the ground plane 012 is formed by employing the above-described means.
Although it is necessary to provide one central supporter 9 at the height where the open / close roof 01 is installed, the outer peripheral supporter 4 can be installed with a shorter height, and the supporter can be supported as compared with the first embodiment. Engineering 04
Therefore, the number of materials, labor, and construction costs required for erecting the shoring work 04 can be further reduced.

Although the ground surface 012 damaged by the erecting of the central support 9 needs to be repaired, the repair section is limited to a narrow area, and the cost required for the conventional damage repair is the same as in the first embodiment. Can be greatly reduced. In addition, since the construction time is shortened, the period during which the ground surface cannot be used can be shortened.
Is not only complete on the ground, but also the first
In the form, it is divided on the ground from the convenience of construction, and it is manufactured separately. After the open / close roof 01 is lifted, the outer peripheral ring 07 which needs to be connected by the outer peripheral support 4 can be manufactured in a complete shape on the ground. The work at high places can be reduced, which is excellent in terms of safety measures.

Further, the posture control when lifting the open / close roof 01 can be performed by the temporary cable 12 suspended from the inner peripheral ring 02 on the ground plane 012, and there is an advantage that no special device for balance control is required. is there.

Next, FIG. 3 is a diagram showing a third embodiment of the cable dome construction methods of the present invention, the inner peripheral ring 02 with the jack-up of the central 支保 Engineering 13 erected to open and close the roof 01 central opening While raising the roof 01 to a predetermined height,
From the time of production on the ground, the suspension ring 6 connected to the inner ring 02 and the outer ring 07, the outer ring 06 and the suspension cable 6 connected to the outer ring 06, and the holding cable 8 are used to balance the lifting of the open / close roof 01. It is.

As shown in FIG. 3A, the ground plane 01
At the approximate center of the inner peripheral ring manufactured on 2 above, a center supporter 13 having a height corresponding to the shape of the open / close roof 01 is erected as shown in FIG. Since this height is not so high, it can be formed by stacking about three modules, and by connecting both ends to the center support 13 and the inner peripheral ring 02, the ground surface 012 is formed.
To manufacture the open / close roof 01.

Further, as in the second embodiment, the height of the outer peripheral support 4 provided on the outer side of the outer wall 011 is the same as that of the second embodiment. The opening / closing roof 01 is set to a height that can be inclined when supporting and holding the opening / closing roof 01 at a predetermined height, and while maintaining the inclination angle of the ring connector 08, FIG.
As shown in (b), the inner peripheral side support 5 connected to the top end of the outer peripheral inner ring 06 is jacked up, modules are sequentially added, and the height is raised. The height is set so that it can be supported by the cable 6 and the holding cable 8.

In this embodiment, the ground plane 012
A suspension cable 6 connects the inner ring 02 and the outer ring 07 on which the open / close roof 01 is manufactured, and a restraining cable 8 connects the inner ring 02 and the outer ring 06. I am trying to do it.

Next, the center supporter 13 is jacked up, modules are sequentially added, and the open / close roof 01 is raised to above the ground plane 012 on which the open / close roof 01 is erected. The rising balance of the open / close roof 01 is such that the inner peripheral ring 02 and the outer peripheral inner ring 0
It can be removed by the tension of the holding cable 8 and the suspension cable 6 connecting the outer ring 7 and the outer ring 7.

The balance control during the raising of the open / close roof 01 may be performed by the provision of the temporary cable 12 shown in the second embodiment, regardless of the cables 8 and 6, so as to achieve balance. .

When the opening / closing roof 01 is erected at a predetermined height in this way, as shown in FIG. 3 (c), the length of the suspension cable 6 and the holding cable 8 is adjusted by the winch, thereby opening and closing the roof. The roof 01 is transferred from being supported by the central supporter 13 to being supported by the tension of the suspension cable 6 and the holding cable 8.

Next, by removing the central support 13 which has become no load due to the support of the cables 6 and 8, and connecting the outer inner ring 06 to the support column 7, the inner support having no load has become free. 5 by removing
As shown in (d), the openable roof 01 can be completed above the ground surface 012.

In the cable dome construction method according to the present embodiment, the ground plane 01
It is necessary to provide one central supporter 13 having a height at which the opening / closing roof 01 is installed on the upper surface 2. However, as in the second embodiment, the outer peripheral supporter 4 can be installed with a shorter height, There is an advantage that the number of the shorings 04 can be reduced as compared with the first embodiment, and the materials, labor, and construction costs required for standing the shorings 04 can be further reduced.

Although repair of the ground plane 012 damaged by the erecting of the central support 13 is necessary, the repair section is limited to a narrow range, and the cost required for the conventional repair can be greatly reduced.

Further, since the construction time is shortened, the period during which the ground surface cannot be used can be shortened, and not only can the truss-shaped frame 03 and the outer peripheral inner ring 06 be completed completely on the ground, but also the outer peripheral outer ring 07 can be used. Like the second embodiment, it can be made into a completely circular shape on the ground,
Work in high places can be reduced, and safety measures can be improved. Furthermore, since the attitude control when lifting the open / close roof 01 can be performed by the suspension cable 6, the holding cable 8, or the temporary cable 12, there is an advantage that a special device is not required.

Next, FIG. 4 is a view showing a fourth embodiment of the cable dome construction method of the present invention. The cable dome is jacked up by a supporter 04 installed at an equal pitch in the circumferential direction below the inner peripheral ring 02. By raising the peripheral ring 02 and the opening / closing roof 01 to a predetermined height or higher for erection, and adjusting the tension of the suspension cable 6 and the holding cable 8 raised to a predetermined height or more by lowering the opening / closing roof 01, Opening / closing roof 01
Are installed in a well-balanced manner.

As shown in FIG. 4A, the ground plane 01
At the approximate center of the inner peripheral ring manufactured on 2 above, a center supporter 14 having a height corresponding to the shape of the open / close roof 01 is erected as shown in FIG. Since this height is not very high, it can be formed by stacking about three modules, and by connecting both ends to the center support 14 and the inner peripheral ring 02, the ground surface 012 is formed.
To manufacture the open / close roof 01.

The height of the outer peripheral support 4 provided on the outer side of the outer wall 011 is the same as that of the second and third embodiments, and a ring connector for connecting the outer peripheral outer ring 07 and the outer peripheral inner ring 06. 08 is set to a height that can be inclined to support and hold the opening / closing roof 01 at a predetermined height, and while maintaining the inclination angle of the ring connector 08, as shown in FIG. 06
Jack is connected to the top end of the inner peripheral support 5 and the modules are added one after the other.
The height is set to a predetermined height of 0 to 30 m so as to be supported by the suspension cable 6 and the holding cable 8.

Next, as shown in FIG. 4 (c), ring supports 15 are arranged at equal pitches in the lower circumferential direction of the inner peripheral ring 02, the ring supports 15 are jacked up, modules are sequentially added, and opening and closing are performed. The openable roof 01 is raised to a position above the ground surface 012 on which the roof 01 is erected. The balance during the rising of the openable roof 01 can be maintained by simultaneously jacking up the ring supports 15. In this state, the inner peripheral ring 02, the outer peripheral inner ring 06 and the outer peripheral ring 07 are suppressed and connected by the cable 8 and the suspension cable 6.

In the case of this embodiment, the introduction of tension to the holding cable 8 and the suspension cable 6 is modest, and as shown in FIG. Therefore, the height indicated by the solid line, that is, a height suitable for the use of the ground surface 012, for example, in the case of a baseball field, is lowered to a height of about 60 m, and is lowered. The same magnitude of tension is introduced into the suspension cable 6 and the holding cable 8 arranged at equal pitches, and the openable roof 01 can be supported in a stable posture.

Next, FIG. 5 shows a construction similar to the first embodiment of the cable dome construction method shown in FIG.
The open / close roof 01 manufactured on the ground is lifted by the suspension cable 6 (traction cable 16) above the ground plane 012, and is erected. In the present embodiment, the embodiment shown in FIG. As in the fourth embodiment,
The height of the opening / closing roof 01 to be hung by the hanging cable 6 is lifted to the erection position (height), and the height of the opening / closing roof 01 raised to the erection height or more is lowered by its own weight.
And by adjusting the tension of the holding cable 8,
It is designed so that it can be installed with a good balance with the posture of the opening / closing roof 01.

The components shown in FIGS. 5A and 5B are constructed in the same manner as in FIGS. 1A and 1B, and will not be described. As shown in FIG. 5 (c) from the state of FIG. 5 (b), when the open / close roof 01 is lifted up via the suspension cable 6 by the tension of the traction cable 16 unwound from the winch at a height higher than the erection height. in the inner periphery while stretched the restraining cable 8 between the ring 02 and the outer inner ring 06, a circle connecting the outer peripheral outer ring 07 which is split is placed on the top end of the outer peripheral side 支保 Engineering 4 cyclic After the outer peripheral ring 07 is formed and the ring connector 08 rotating around the inner peripheral ring 06 is inclined at a predetermined angle, the open / close roof 01 is lifted to a height equal to or higher than the installation height. The tension of the traction cable 16 is reduced to zero.

As a result, as shown by the dotted line in FIG. 5 (d), the open / close roof 01 arranged at a height equal to or higher than the erection height has its own weight, and the open / close roof 01 has the height indicated by the solid line from the height of the dotted line. In other words, the suspension cable 6 is lowered to a height suitable for the use of the ground surface 012 and is installed. In addition, a tension for stabilizing the posture of the open / close roof 01 is introduced, and the open / close roof 01 can be supported in a stable posture.

As described above, as described in the fifth embodiment,
A tension higher than a predetermined value is introduced into the suspension cable 6 to lift the opening / closing roof 01 to a height equal to or higher than the erection height, and the opening / closing roof 01 is lowered to the erection height by its own weight to introduce tension to the holding cable 8. In this way, tension is introduced into a large number of the suspension cables 6 and the holding cables 8 so that the opening / closing roof 01 is supported in a stable posture by the cables, and the tower crane 10 is used to lift the opening / closing roof 01. 2nd form, or central supporter 13
, The open / close roof 01 can be lifted up to the erected height on the ground plane 012 by jacking up the third embodiment.

That is, in the second embodiment, this construction method can be performed by setting the center support 9 higher than the height of the erection roof 01 and installing the tower crane 10 above it. In the third embodiment, a similar construction method becomes possible by setting the central supporter 13 to have a height equal to or higher than the erection height of the opening / closing roof 01, and the opening / closing roof 01 erected at a height equal to or higher than the erection height is grounded. 012 is lowered to a height suitable for use, and the number of suspension cables 6 arranged at equal pitches in the outer circumferential direction of the inner peripheral ring 02 and A tension that can stabilize the attitude of the open / close roof 01 can be introduced into the holding cable 8, and the cables 6 and 8 can maintain the open / close roof 01 in a stable attitude.

[0081]

As described above, according to the cable dome construction method of the present invention, the inner peripheral ring is assembled on the ground surface,
A process of arranging truss-shaped frames radially from the center of the assembled inner peripheral ring to form a dome roof, arranging them radially outside the inner peripheral ring with a space between each, and each top end being larger than the inner peripheral ring. A step of erecting an outer peripheral side support for installing an outer peripheral ring composed of an outer peripheral inner ring having a diameter and an outer peripheral ring having a larger diameter than the outer peripheral inner ring, which is rotatably connected to the outer peripheral inner ring outer periphery and is divided into a tip portion. The outer outer ring is fixed and the ring connector is connected to each outer ring at both ends.The ring connector is rotated around the outer inner ring, and the outer peripheral ring and the inner ring are turned with their tips toward the inner ring. Is connected to the outer ring with the pulling cable connected to the outer ring. Moving the dome roof on the ground surface to the erected height by this rotation, lifting the dome roof, and connecting the outer circumferential outer ring placed at the top end of the outer circumferential support to the circumferential outer ring. And a step of holding the dome roof at the erection height with a hanging cable and suspending the inner ring and the outer ring with a cable to connect the inner ring with the inner ring.

As a result, the number of shoring works to be erected is reduced by 1 /
It can be reduced to 10 or less, and materials, labor and construction costs can be reduced, and the dome roof construction period can be shortened. In addition, the height of the support of the ground surface can be reduced and the weight can be reduced, so that reinforcement of the ground surface is not required, and damage to the ground surface can be reduced.
Further, the dome roof can be manufactured on the ground, and the work of assembling the truss-like frame on the shoring work can be eliminated, work at heights can be reduced, safety problems can be reduced, and costs required for these can be reduced.

The cable dome construction method of the present invention comprises:
The process of forming the dome roof in the same manner as described above, arranged outside the inner peripheral ring, fixing the outer peripheral ring at the distal end and fixing the outer peripheral ring at the base end, and the ring connector with a predetermined inclination The process of erecting the inner peripheral support with the base end fixed to the top end, the process of erecting the central support with the tower crane installed at the top end through the center of the dome roof, the tower Connect the lower end of the lifting cable suspended from the crane to the center of the dome roof,
The process of hoisting the hoisting dome roof of the elevating cable to the erection height, holding the dome roof at the erection height by the hanging cable connected to the outer ring and the inner ring, and suppressing the inner ring and the outer ring Connecting with a cable.

As a result, it is necessary to provide one central supporter for erection of the dome roof on the ground surface. However, the number of outer peripheral supports can be reduced to about １ ／, so that materials, labor and construction costs can be further reduced. In addition, the cost and work required for reinforcing the ground surface and repairing the damage generated on the ground surface by providing one central supporter on the ground surface can be reduced. Furthermore, the joining work of the divided outer outer ring is not required, the work at high places can be reduced, and the safety problem is reduced,
Equipment costs for these can be reduced.

The cable dome construction method of the present invention
The process of forming the dome roof as described above, the process of erecting the inner peripheral support in the same manner as described above, the inner peripheral ring on the ground surface and the top end of the ring connector at the top of the inner peripheral support that is erected Connecting the outer ring fixed to the outer ring with a suspension cable, abutting the center of the assembled dome roof and raising the center support to the erection height at the center of the inner ring, erecting the dome roof At the erection height, and introduce tension to the suspension cable and holding cable connecting the inner and outer rings and the inner and outer rings that resist the dome roof from blowing up wind. Process.

Thus, the stability when the dome roof is raised to the erection height can be held by the suspension cable and the holding cable, and the dome roof can be stably lifted without requiring any special device.

The cable dome construction method of the present invention is as follows.
A process of forming a dome roof as described above, a process of erecting the inner peripheral side support as described above, and a dome roof which is disposed in a circumferential direction below the assembled inner ring and is assembled in the inner ring, The process of erecting a ring support that rises above the height, the process of connecting the inner ring of the dome roof, the outer outer ring and the outer inner ring of the dome roof with a suspension cable and a restraining cable, The step of lowering the dome roof to the erection height and introducing tension to the suspension cable, and separately introducing tension to the holding cable that resists the blowing of the dome roof.

Thus, the first embodiment, the second embodiment,
As compared to the third form, the dome roof suspended above the erection height can be lowered to the erection height and tension can be introduced into the suspension cable, and the tension that separately resists blow-up is introduced into the holding cable, The dome roof can be stably held by the tension introduced into the suspension cable and the hold-down cable, and a stable dome roof can be erected by resisting the blowing of the dome roof.

Further, the cable dome construction method of the present invention is as follows.
The step of lifting the dome roof to the erection height by any of the above-described steps is the step of lifting the dome roof to the erection height or higher, and the inner peripheral ring and the outer peripheral ring of the dome roof that is raised above the erection height and After connecting the outer inter-ring with the suspension cable and holding cable or introducing tension in the same manner as in the above process, lower the dome roof from the height above the erection height in the same manner as in the above process, and load the dome roof. And the step of holding the dome roof at the erection height by the tension of the suspension cable generated in the above, and introducing a tension to the holding cable that resists the blowing of the dome roof.

As a result, in addition to the above-described functions and effects, the dome roof can be stably held by the tension introduced into the suspension cable and the holding cable, and a stable dome roof can be provided which resists the blowing of the dome roof. The same operation and effect as described above that can be installed can be obtained.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a first embodiment of a cable dome construction method of the present invention;

FIG. 2 is a flowchart showing a second embodiment of the cable dome construction method of the present invention,

FIG. 3 is a flowchart showing a third embodiment of the cable dome construction method of the present invention;

FIG. 4 is a flowchart showing a fourth embodiment of the cable dome construction method of the present invention;

FIG. 5 is a flowchart showing a fifth embodiment of the cable dome construction method of the present invention;

6A and 6B are diagrams showing an embodiment of a conventional cable dome construction method, in which FIG. 6A is a cross-sectional view showing a dome roof when opening and closing a roof, and FIG. 6B is a view showing a construction flow. It is.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof 2 Stand 3 Existing ballpark 4 Outer side support 5 Inner side support 6 Suspension cable 7 Support column 8 Suppression cable 9 Central support 10 Tower crane 11 Elevating cable 12 Temporary cable 13 Central support 14 Central support 15 Ring Shoring 16 Towing cable 01 Opening / closing roof 02 Inner ring 03 Trussed frame 04 Shoring 05 Cable 06 Outer inner ring 07 Outer outer ring 08 Ring connector 09 Crane truck 010 Trussed frame block 011 Outer wall 012 Ground plane

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoichi Iwamoto 2-1-1 Shinhama, Arai-machi, Takasago City, Hyogo Prefecture Inside the Takasago Research Laboratory, Mitsubishi Heavy Industries, Ltd. (72) Inventor Masaaki Fukihara 1-1-1, Wadazakicho, Hyogo-ku, Kobe-shi No. 1 In the Kobe Shipyard of Mitsubishi Heavy Industries, Ltd. (72) Inventor Katsuki Toya 1-1-1, Wadazakicho, Hyogo-ku, Kobe F-term in Kobe Shipyard, Mitsubishi Heavy Industries, Ltd. 2E174 AA01 BA05 DA02 DA08 DA18 DA24

Claims (5)

[Claims] 1. A cable dome in which a dome roof comprising an inner peripheral ring and a truss-like frame radially arranged inside the inner peripheral ring is erected above a ground plane by a cable connected to an outer periphery of the inner peripheral ring. In the construction method, a step of forming the dome roof on the ground surface, and a step of erecting a shoring that is disposed outside the inner peripheral ring and is erected at each top end to install an outer peripheral ring, Providing a ring connector that rotates in a vertical plane perpendicular to the axis of the outer peripheral ring and has both ends connected to the outer peripheral rings; and rotating the ring connector toward the inner peripheral ring, the ring connector The outer ring and the inner ring connected to one end are connected by a suspension cable, and the ring connector is pivoted outward to suspend the dome roof to an installation height. A cable dome construction method, comprising: a step of lifting the dome roof; and a step of holding the suspended dome roof at an erected height by tension of the suspension cable. 2. A cable dome in which a dome roof comprising an inner peripheral ring and a truss-like frame radially arranged inside the inner peripheral ring is erected above a ground plane by a cable connected to an outer periphery of the inner peripheral ring. In the construction method, a step of forming the dome roof on the ground surface, a step of erecting a support provided outside the inner peripheral ring and erection of an outer peripheral ring at a top end, and a tower crane at a top end A step of erecting a center support installed at the center of the inner peripheral ring and penetrating the center of the dome roof; and And lifting the dome roof to the erection height, and tensioning a suspension cable connecting the lifted dome roof to the outer ring and the inner ring. A method for constructing a cable dome, comprising the step of maintaining the erection height by force. 3. A cable dome in which a dome roof comprising an inner peripheral ring and a truss-like frame radially arranged inside the inner peripheral ring is erected above a ground plane by a cable connected to an outer periphery of the inner peripheral ring. In the construction method, a step of forming the dome roof on the ground plane, a step of erecting a supporter provided outside the inner peripheral ring and erection of an outer peripheral ring at a top end, and disposed on the ground plane. Connecting a hanging cable between the inner ring and the outer ring provided on the upright support, and a central support for jacking up the dome roof to a erection height. A cable comprising a step of erecting the dome roof at the center of the peripheral ring, and a step of holding the suspended dome roof at the erected height by tension of the suspension cable. Dome construction method. 4. A cable dome in which a dome roof comprising an inner peripheral ring and a truss-like frame radially arranged inside the inner peripheral ring is erected above a ground plane by a cable connected to an outer periphery of the inner peripheral ring. In the construction method, a step of forming the dome roof on the ground surface, a step of erection of an outer peripheral supporter provided outside the inner peripheral ring and erection of an outer peripheral ring at a top end thereof, and Erecting a ring supporter that is arranged at equal pitches in the lower circumferential direction and jacks up the dome roof to a height equal to or higher than the erection height, and suspends the inner ring and the outer ring of the lifted dome roof. A cable connecting step, and a step of lowering the dome roof raised above the erection height to the erection height and introducing tension to the suspension cable. Characteristic cable dome construction method. 5. The step of hoisting the dome roof to the erection height, wherein the step of hoisting the dome roof to a height higher than the erection height, wherein the inner peripheral ring and the outer peripheral ring of the dome roof suspended above the erection height After connecting the dome roof with the suspension cable and the holding cable, the tension of the suspension cable and the holding cable caused by the load on the dome roof when the dome roof is lowered from the erection height or higher to the erection height. 4. The method according to claim 1, further comprising the step of holding.