JP3194104B2 - Large roof structure and construction 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 large roof structure rising upward and a method of constructing the same.

[0002]

2. Description of the Related Art Conventionally, a large roof structure constructed in an upper part of a gymnasium or the like is constructed by mounting straight beams of equal length from both opposing building lower structures to the roof structure. It is formed in a mountain shape in side view by joining at the center in the length direction of the portions. As a construction method of the roof structure portion, a building lower structure portion on which the roof structure portion is to be mounted is built in advance, and a beam material directly from both of the opposing building lower structure portions is attached to both ends. Is set up and leans left and right. Then, in the state described above, the prestress is introduced toward the opposing opposing sides via the PC strands connecting the lower ends of the respective building substructures, thereby stably standing the building.

[0003]

However, in the case of the above-mentioned roof structure and its construction method, the following problems have arisen. That is, in the above-described roof structure and its construction method, since the stress concentration at the apex portion becomes remarkable, it is necessary to firmly configure the ridge and the structure in the vicinity thereof. In addition to being difficult to weight, it is necessary to form the substructure of the building that supports the roof structure with high strength because of its high weight, which increases the construction cost and prolongs the construction period. Was.

[0004] In view of the above problems, a large dome-shaped structure has been proposed which is constructed in a dome shape by connecting aggregates of appropriate length from the lower structure of the building so as to be sequentially added from below. However, this time, it is necessary to add a large number of aggregates, it takes time to construct, and it is necessary to build a scaffold for workers to move over the entire construction position, which reduces construction efficiency. Problems arise.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a large-sized roof structure which is light in weight, can be easily lifted, has a simple structure, and improves construction efficiency, and a construction method therefor. Is what you do.

[0006]

Means for Solving the Problems] claim 1 large roof structures in the embodiment described is a large roof structure made me caused upwards, is Tatekoma on top of the lower structure portion of the building to be construction The beam structure comprises an arched beam material and a lower string cable stretched so as to connect both lower ends of the beam material. Between them, a plurality of auxiliary cables for connecting the both are attached as a bundle in the length direction of the beam structure, and the whole is formed in an upwardly convex bow or chevron shape. Claim 2
The construction method of a large-sized roof structure according to the invention described above includes installing a beam on the floor between the lower structures where the roof structure is to be constructed, and attaching a lower chord cable so as to connect both lower ends of the beam. Attach an auxiliary cable of the desired length between the lower string cable and the beam to make it a bundle, stretch it by pulling the lower cable, raise both beams to the desired shape, and complete the beam structure And a step of performing The construction method of a large-sized roof structure according to claim 3 is to construct a lower structure portion of a building on which the roof structure portion is to be mounted, and form a gantry in a central portion of the building at a height at which the roof structure portion is installed. Erecting the beam, installing the beam at the upper part of the building by installing both ends at the upper part of the lower structure part, and installing the center part at the upper part of the gantry, and connecting both lower ends of the beam. In this way, attach the lower string cable and attach the auxiliary cable of the desired length between the lower string cable and the beam material to make a bundle ,
The present invention is characterized in that a step of stretching the lower string cable by pulling the lower string cable to raise both beam members into a desired shape to complete a beam structure is provided. The invention according to claim 4 is a method for constructing a large-sized roof structure rising upward, comprising constructing a lower structure portion of a building on which the roof structure portion is to be mounted and installing the roof structure portion at the center of the building. Erecting a gantry formed at the height of the uppermost part, and leaning a beam half member constituting the beam from the upper portion of each of the lower structural portions facing the gantry toward the upper portion of the gantry. the upper portion and a step of freely pin joints rotate up and down, attached the desired length of the auxiliary cable between the both and fitted with a lower chord cable so as to connect the lower end of the beam a half member of the lower chord cable and beam half material As a bundle , a step of stretching the lower string cable by pulling it at the upper part of the gantry or at the lower end of the beam half to raise both beam halves to the target height, and after rising to the target height, Rigid beam Characterized in that it comprises the step of completing the creation. Claim 5
Ming is a method for constructing a large-sized roof structure according to claim 2 or 4 , wherein a lower structure of a building on which the roof structure is to be mounted is constructed, and the completed beam structure is lifted up. A step of installing the lower structure above the lower structure.

[0007]

According to the large-sized roof structure of the first aspect, an axial force resistance system is formed by setting the beam material to the stress state of the arch structure, and the load of the roof structure is efficiently supported. To reduce the cross-sectional area. Also, by adjusting the pulling force of the lower chord cable, the moment of the beam material under its own weight can be controlled, so that stress concentration can be avoided. At the same time, it is possible to configure the entire structure including the beam and each cable as a balanced system.

According to the construction method for a large-sized roof structure according to the second aspect, the beam structure is constructed by stretching the lower chord cable while the beam material is placed on the floor, thereby improving workability. improves.

According to the construction method for a large-sized roof structure according to the third aspect, since the gantry need not be formed or can be formed lower than the invention of the second aspect, the man-hour for the construction of the roof structure portion is reduced. I do. In addition, since the beam is horizontally installed between the lower structural parts, it is easy to set and raise the beam at the construction position.

According to the construction method for a large-sized roof structure of the present invention, since the beam half having a half length of the main construction is rigidly joined at the installation position, the weight of the beam half to be transferred is reduced and the beam half is moved to the installation position. Lifting work becomes easier. Moreover, since the construction work of the beam structure is performed in a state where the beam material is installed on the upper part of the lower structure, the construction of the lower part of the building can be advanced in parallel with the construction of the roof.

According to the construction method for a large-sized roof structure according to the fifth aspect, the beam structure is set at the installation position after the beam structure is completed on the floor below the installation position. Adjustment with the shape of the position can be performed before the beam material is lifted up, and construction accuracy is improved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A large-sized roof structure according to the present invention will be described below with reference to FIGS. Reference numeral 10 shown in FIG. 1 denotes a roof structure of the present embodiment.

As shown in FIGS. 1 and 2, the roof structure 10 includes an arched beam 11 and a lower chord cable 12 stretched so as to connect both lower ends of the beam 11.
And a plurality of auxiliary cables 13 attached between the beam 11 and the lower string cable 12 at appropriate positions in the length direction of the beam 11
A plurality of beam structures 14 are formed on the upper part of the lower structure, and a roof dome material 10a is attached to these beam structures 14 so as to cover the upper surfaces thereof, thereby forming a circular dome shape in plan view. ing.

The beam member 11 has an arch shape that forms an axial force resistance system by forming a stress state of the arch structure, and is formed along the outer edge of the roof structure 10 in a circular shape in a plan view. Is mounted on the lower structure portion 15 at a diameter position and fixed at both lower end portions.

The lower chord cable 12 is formed between the lower end portions of the beam member 11 and has an arc having a radius larger than the beam member 11 along the beam member 11 or a shape close thereto. The auxiliary cables 13 are attached at substantially equal intervals so as to be symmetrical at the top of the beam member 11 and both wings. As shown in FIGS. 3, 4, and 5, the lower string cable 12 and the auxiliary cable 13 are connected to each other so as to be fixed or horizontally movable.

As shown in FIG. 3, as a method of fixing and connecting the lower string cable 12 and the auxiliary cable 13 to each other, a lower string cable segment 12 forming the lower string cable 12 is used.
a in its length direction via a cable mounting plate 16 and the cable mounting plate 16
Auxiliary cable 13 is attached. Each cable is provided with a locking member 17 at an end thereof and the locking member 17.
The stopper fitting hole 17a formed at the center of the cable fitting plate 16 matches the stopper fitting hole 16a formed at the end of the cable mounting plate 16, and both stopper fitting holes 16a and 17a have rod-shaped stoppers 18 respectively. Are connected to each other. In this case,
Each cable is rotatably attached to the cable mounting plate 16.

On the other hand, as shown in FIG. 4, as a method of connecting to each other so as to be able to move horizontally, a first connection fitting 19 is attached to the lower end of the auxiliary cable 13, and the center of the first connection fitting 19 is attached to The lower string cable 12 is inserted into the provided cable insertion hole 19a. As shown in FIG. 5, in addition to the method shown in FIG. 4, the lock 17 is attached to the lower end of the auxiliary cable 13, and the lock 18 and the second connection 20 are connected to the lock 18. The auxiliary cable 13 and the lower string cable 12 may be connected by being rotatably connected via a cable. In the case of this method, since the locking fitting 17 is rotatable in the vertical direction with respect to the second connecting fitting 20, the second connecting fitting 20 is free to move horizontally when the lower string cable 12 is attached. The direction can be changed, and the construction and stretching work of the lower string cable 12 become easy.

According to the roof structure 10, since the axial force resistance system is formed by setting the beam 11 to the stress state of the arch structure, the beam 11 can be efficiently supported by supporting the load of the roof structure 10. Can be formed to have a small cross-sectional area, thereby making it possible to improve workability and reduce construction costs by reducing the weight. Also, the lower string cable 12 at the time of rising
By adjusting the traction force, the moment of the beam 11 under its own weight can be controlled, so that stress concentration can be avoided and the cross-sectional area of the beam 11 can be made smaller. At the same time, since the entire beam structure 14 can be configured as a balancing system, horizontal thrust at the lower end can be eliminated.

As shown in FIG. 6, the beam structure 1
It is also possible to configure the building into a kamaboko shape or the like by a combination of 4 and a lower structure on which the beam structure 14 is to be placed.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. The construction of the roof structure 10 by the construction method of the large-sized roof structure according to the present embodiment is performed as follows.

That is, as shown in FIG. 7, first, the lower structural part 15 of the building 21 on which the roof structural part 10 is to be mounted is constructed and the beam material to be constructed between the opposing lower structural parts 15 is constructed. 11 is placed on the floor below the construction position.

As shown in FIG. 8, when the installation of the beam member 11 is completed, the lower string cable 12 is attached so as to connect both lower ends of the beam member 11, and an object is provided between the lower string cable 12 and the beam member 11. Is attached. The attachment of the auxiliary cable 13 to the lower string cable 12 is performed via the cable attachment plate 16, the first connection fitting 19 or the second connection fitting 20. When the lower string cable 12 and the auxiliary cable 13 are attached, the lower string cable 12 is pulled to the desired shape by pulling the lower string cable 12 at both ends of the beam 11, and the lower string cable 12 is connected to both lower ends of the beam 11. The beam structure 14 is formed by extending the connecting portions.

When the raising of the beam member 11 is completed, the beam structure 1
Attach lift-up mechanisms 23, 23 to both ends of 4,
As shown in FIG. 2, the beam structure 14 is lifted up to a construction position above the lower structure portion 15 and both lower end portions are fixed to the target positions.

According to the construction method of the large-sized roof structure of the present embodiment configured as described above, the tension of the lower chord cable 12 at the time of the above-mentioned stretching acts equally on the whole, so that the beam member 11 can bear the uneven load. Since the proof strength is improved, the cross-sectional area of the beam 11 can be further reduced, the beam 11 can be reduced in weight, and can be easily transferred to the construction position, and the material for forming the beam 11 can be saved. The manufacturing cost of the roof structure 10 can be reduced.

Further, according to the construction method of the large-sized roof structure of the present embodiment, the load on the beam 22 is reduced by the pulling force of the lower string cable 12 and the load on the gantry 22 is reduced.
The gantry 22 can be simplified to improve its construction efficiency, and the construction period of a large roof structure can be shortened.

On the other hand, since the beam structure 14 is constituted by combining the beam member 11, the lower string cable 12, and the auxiliary cable 13, the construction is easy and the necessity of the building accuracy is reduced, thereby improving the construction efficiency. In addition, beam material 1
Since the lower string cable 12 is stretched in a state where the cable 1 is placed on the floor, workability is improved and work efficiency can be improved. In addition, since the beam 11 is set at the installation position after being raised on the floor vertically below the installation position, the shape of the installation end provided after the bending of the beam 11 and the installation position provided on the lower structure portion 15 is different. Adjustment can be easily performed before lifting up without repeating raising and lowering of the beam material 11.

Hereinafter, a second embodiment of the present invention will be described with reference to FIGS.
0 will be described. The construction of the roof structure 10 by the construction method of the large-sized roof structure according to the present embodiment is performed as follows.

First, as shown in FIG.
The lower structural part 15 of the building 21 on which is to be mounted is constructed, and the gantry 22 is erected at the center of the building 21. The gantry 22
It is formed at the height of the lower structure 15 where the lower end of the roof structure 10 is installed and stands upright. The gantry 22 is provided to support the beam member 11 up to immediately before it rises, and need not be provided if the space between the lower structural parts 15 is short.

Next, as shown in FIG.
1 is placed on the upper part of the building 21 by placing both ends at the installation position of the lower structure part 15 and installing the center part on the upper part of the gantry 22. The lower string cable 12 is attached to the beam material 11 having been installed so as to connect both lower ends, and an auxiliary cable 13 having a desired length is attached between the lower string cable 12 and the beam material 11. Then, as shown in FIG. 10, in this state, the lower chord cable 12 is pulled and stretched at the lower end portion of the beam member 11, thereby raising the beam member 11 to configure the beam structure 14. After the beam structure 14 is completed, both lower ends are fixed to the upper portion of the lower structure portion 15 to complete the installation.

Therefore, according to the method for constructing a large-sized roof structure of the present embodiment, the same effects as those of the first embodiment can be obtained. In addition, the beam 11 is leveled and the lower structure 15
Since it is erected between the beams, it is easy to set and raise the beam 11 at the construction position, and since the beam 11 is set at the construction position before raising, the beam 11 can be moved to the construction position. Position adjustment is easy and the workability is improved.

Hereinafter, a third embodiment of the present invention for constructing a roof structure 10a having a mountain shape in side view will be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIG. 11, the roof structure 10a is formed in a mountain shape by being fixed by being joined in a straight state without raising the beam material 11 of the roof structure 10.

In order to construct the roof structure 10a by the method for constructing a large roof structure according to this embodiment, first, as shown in FIG. A beam half 11a forming the beam 11 is leaned from the upper part toward the upper part of the gantry 22. Then, when the upper ends of the beam half members 11a, 11a are raised, they are pin-joined so as to be rotatable up and down at an appropriate angle. The beam half 11a is a straight member that constitutes the beam 11 formed to be approximately half the length of the beam 11.

After the pin connection is completed, the lower string cable 12 is attached so as to connect the lower ends of both beam halves 11a, and an auxiliary cable 13 having a desired length is attached between the lower string cable 12 and the beam 11a. The attachment of the auxiliary cable 13 to the lower string cable 12 is performed via the cable attachment plate 16, the first connection fitting 19 or the second connection fitting 20.

As shown in FIG. 13, when the lower string cable 12 and the auxiliary cable 13 have been attached, the lower string cable 12 is pulled to stretch the beam 11 so that the center of the beam 11 is at the height of the top of the gantry 22. Raise until it becomes. Note that the traction force of the lower string cable 12 required for ascending is about 1.5 times the load to be lifted, and a normal jack for introducing tension into the cable can be used as it is.

When the beam 11 has been raised to the desired height, the pin joint is rigidly joined, and then the other parts are constructed to complete the roof structure 10a.

After the completion of the above steps, the construction inside the building 21 is completed and the gantry 22 is removed to complete the entire structure of the building 21.

According to the method for constructing a large-sized roof structure according to the present embodiment, since the beam 11 is joined while the beam half 11a is set at the construction position of the beam 11, the beam 11 is joined.
The half beam 11a, which is half the weight of the beam half 11a, can be easily transported, the construction efficiency is improved, and the beam half 11a is installed at a high position and is formed so as to form an upwardly convex curve substantially along the beam member 11. From the above, at the same time as the construction of the beam material 11 of the building 21 using the space formed under the beam structure 14 during the construction, the construction of the roof structure 10a and the lower structure 15 located below the beam structure 14 The work can be performed in parallel, and the construction efficiency of the roof structure 10a can be further improved.

[0038]

As described above, the large-sized roof structure according to the first aspect of the present invention is a large-sized roof structure rising upward, which is located above a lower structural portion of a building to be constructed. The beam structure comprises an arch-shaped beam material and a lower chord cable stretched so as to connect both lower ends of the beam material. Auxiliary cable connecting both materials and lower string cable
A plurality of beams are attached in the length direction of the beam structure as a bundle, and the whole is formed in an upwardly convex bow shape or mountain shape, so that the beam material is in a stress state of the arch structure. As a result, the axial force resistance system is formed, and the load of the roof structure is efficiently supported. As a result, the cross-sectional area of the beam is reduced, and the workability and the construction cost of the beam can be reduced.

Further, by adjusting the pulling force of the lower string cable, the moment of the beam under its own weight can be controlled, so that stress concentration can be avoided and the cross-sectional area of the beam can be made smaller. Becomes possible. At the same time, it is possible to configure the entire structure consisting of the beam and each cable as a balanced system.Therefore, it is possible to eliminate the horizontal thrust at the lower end of this structure, thereby simplifying the structure of the building and its design. it can.

Furthermore, since the beam is lifted up and set on the upper part of the lower structure before joining, it is easy to proceed with the construction of the building located below the beam structure simultaneously with the construction of the beam. The lower cable is stretched so as to form an upwardly convex curve roughly along the beam material, making effective use of the space formed below the lower cable during the construction work for other parts of the building Since it can be used, construction efficiency can be further improved.

As a result of the above, since the cross-sectional area of the beam material can be further reduced, the weight of the beam material can be reduced and the material can be easily transported to the construction position. The manufacturing cost of the structure can be reduced. In addition, since the tension of the lower string cable at the time of the stretching works equally on the whole, the strength against the uneven load is improved.

According to the method for constructing a large-sized roof structure according to the second aspect of the present invention, a beam is installed on the floor between the lower structures where the roof structure is to be constructed, and both lower ends of the beam are installed. Attach the auxiliary cable object length between the mounting of the lower chord cables and lower chord cables and beam members so as to connect the
It is characterized by having a process of completing the beam structure by bundling and stretching the lower string cable by pulling the lower string cable to raise both beam materials to the desired shape, so that the beam material is put on the floor By stretching the lower string cable with it placed,
Workability is improved, and construction efficiency and construction efficiency can be improved.

According to the method for constructing a large-sized roof structure according to claim 3 of the present invention, the lower structure of the building on which the roof structure is to be mounted is constructed, and the gantry and the roof structure are installed at the center of the building. Erecting the beam at the height of the building, erecting the beam at the upper part of the building by installing both ends at the upper part of the lower structure part and installing the center part at the upper part of the gantry, Attach the lower string cable so as to connect both lower ends of the material, and attach an auxiliary cable of the desired length between the lower string cable and the beam material to form a bundle. Since the method is provided with a step of completing the beam structure by raising the material to a desired shape, the same effect as that of the invention of claim 2 can be obtained. Then, since the gantry is unnecessary or may be formed lower, Man-hours of construction of the root structure is reduced.
In addition, since the beam is installed horizontally between the lower structural parts, it is easy to set and raise the beam at the construction position, which can further improve the construction efficiency and By setting the beam material at the construction position before rising, the position adjustment of the beam material to the construction position becomes easy, and the workability is improved.

According to the method for constructing a large-sized roof structure according to the fourth aspect of the present invention, there is provided a method for constructing a large-sized roof structure rising upward, wherein a lower structural portion of a building on which the roof structural portion is to be mounted is provided. Erecting a gantry formed at the height of the top of the roof structure in the center of the building by performing construction, and directing the gantry from the upper portion of each of the lower structures facing the center to the upper portion of the gantry. Setting the upper half of the beam half up and down and pivotally connecting the upper and lower ends of the beam half, and attaching the lower string cable so as to connect the lower ends of both the beam half and the lower string cable and the beam half. Attaching an auxiliary cable of the desired length to the bundle, and stretching the lower string cable by pulling it at the top of the gantry or the lower end of the beam half to raise both beam halves to the desired height; and Height Since the method includes a step of rigidly joining the pin joint portion after the ascending to complete the beam structure, the beam structure can be easily configured by combining the beam material, the lower string cable, and the auxiliary cable. In addition to the ease of construction and the reduction in the need for accuracy in building, the beam half is lighter and easier to transport than the beam, so it can be easily set in the construction position and the roof structure can be constructed. Efficiency is improved.

According to the construction method for a large-sized roof structure according to the fifth aspect, the lower structure of the building on which the roof structure is to be mounted is constructed, and the completed beam structure is lifted up. It is characterized by having a process of installing the beam on the upper part of the beam, and setting the beam at the installation position after completing the beam structure on the floor vertically below the installation position, so that the mounting end of the beam after rising Adjustment of the shape of the installation position provided in the part and the lower structure part can be easily performed before lifting up without repeatedly raising and lowering the beam material, and the construction accuracy is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a large-sized roof structure according to the present invention.

FIG. 2 is the front sectional view.

FIG. 3 is a perspective view showing the cable attachment plate.

FIG. 4 is a perspective view showing a first connection fitting for connecting the cables.

FIG. 5 is a perspective view showing the second connection fitting.

FIG. 6 is a perspective view showing an example of the other building.

FIG. 7 is a construction procedure diagram showing an initial stage of the first embodiment of the present invention.

FIG. 8 is a construction procedure diagram showing the construction of the beam structure.

FIG. 9 is a construction procedure diagram showing an initial stage of the second embodiment of the present invention.

FIG. 10 is a construction procedure diagram showing construction of the beam structure.

FIG. 11 is a side view showing a large roof structure to be constructed by the construction method of the third embodiment of the present invention.

FIG. 12 is a construction procedure diagram showing installation of the beam half.

FIG. 13 is a construction procedure diagram showing the construction of the beam structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Roof structure part 11 Beam material 11a Beam half material 12 Lower string cable 13 Auxiliary cable 14 Beam structure 15 Lower structure part 21 Building 22 Gantry

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Naomori Taniguchi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Kenji Suzuki 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu (56) References JP-A-3-241128 (JP, A) JP-A-3-90783 (JP, A) JP-A-3-228983 (JP, A) JP-A 64-6429 JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) E04B 1/34 E04B 1/32 102 E04C 3/10 E04G 21/14

Claims (5)

(57) [Claims] 1. A large-sized roof structure rising upward, comprising a plurality of beam structures built above a lower structure portion of a building to be constructed, wherein the beam structure has an arch shape. And a lower chord cable stretched so as to connect both lower ends of the beam material, and an auxiliary cable connecting the both is connected between the beam material and the lower chord cable as a bundle . A large-sized roof structure, wherein a plurality of roof structures are attached in the longitudinal direction of the roof, and the whole is formed in an upwardly convex bow shape or mountain shape. 2. A beam material is installed on the floor between the lower structural parts on which the roof structure is to be constructed, and a lower string cable is attached so as to connect both lower ends of the beam material. Attach an auxiliary cable of the desired length to the bundle
A method for constructing a large-sized roof structure, comprising a step of stretching the lower string cable by pulling the lower string cable to raise both beam members into a desired shape to complete the beam structure. 3. A step of constructing a lower structure portion of a building on which a roof structure portion is to be mounted, forming a gantry in a central portion of the building at a height at which the roof structure portion is to be installed, and erecting the beam material. Installing both ends on the upper part of the lower structural part and installing the center part on the upper part of the gantry at the top of the building, attaching the lower chord cable so as to connect both lower end parts of the beam material, and A process of attaching a supplementary cable of the desired length between the cable and the beam to form a bundle, stretching the lower string cable by pulling it, and raising both beams to the desired shape to complete the beam structure A method for constructing a large roof structure, comprising: 4. A method for constructing a large roof structure rising upward, comprising: constructing a lower structure portion of a building on which a roof structure portion is to be mounted; Erecting a gantry formed at the height of the gantry, and leaning a beam half member constituting a beam from each upper portion of the lower structure portion facing the gantry toward the upper portion of the gantry, and both upper ends thereof Connecting the lower ends of both beam halves to the lower string cable, and attaching an auxiliary cable of the desired length between the lower string cable and the beam half to form a bundle. Stretching the lower string cable by pulling it at the upper part of the gantry or at the lower end of the beam half to raise both beam halves to the desired height; and after the rise to the desired height, rigidly join the pin joints. Complete the beam structure A method for constructing a large-sized roof structure, comprising the step of: 5. The method for constructing a large-sized roof structure according to claim 2, wherein a lower structure of a building on which the roof structure is to be mounted is constructed, and the completed beam structure is lifted. A method for constructing a large-sized roof structure, comprising a step of raising and installing the structure on an upper part of a lower structure.