JP2003268879A - Method for constructing roof structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for constructing a roof structure, which shortens working hours by making good use of advantages of a block constructing method for constructing a structure by using low-capacity equipment. <P>SOLUTION: Roof blocks 1A to 1E are sequentially or simultaneously assembled while they are borne by means of temporary supports 3A to 3E set on a foundation G present at lower peripheral locations thereof. Then, the roof blocks 1A to 1E are sequentially raised from a central portion to the periphery thereof by means of a plurality of push-up devices 4, 4, etc., which move from the central portion to the periphery thereof along a plurality of moving rails 2, 2, etc., which are radially laid from the central portion. Then, joint connecting portions 5A to 5D of the adjacent roof blocks are sequentially connected to each other. By virtue of the method, construction of the roof blocks and the push-up work are carried out by a necessary minimum number of general purpose equipment units each having an ordinary capacity, without limitation of a plot or without awaiting subsequent procedures, in a systematic and efficient manner. Further, the method contributes to shortening of a construction period, drastic reduction in construction cost, and safe work due to elimination of high-altitude work. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof structure construction method for constructing a roof structure on a foundation while connecting a plurality of annual ring-shaped roof blocks from the central portion toward the outer peripheral side.

[0002]

2. Description of the Related Art Construction of a roof structure, particularly a large roof structure having a large diameter has been conventionally performed by a number of construction methods. For example, all of the roof structure is assembled on a ground foundation, and it is built up by jacking it up with a plurality of lifting devices assembled on a temporary support at once, or a plurality of roof structures are arranged on the foundation. A lift-up method that pushes up the entire roof structure at once with a push-up device, and the roof structure is assembled into blocks on the foundation in a predetermined size,
There are a crane construction method in which these are assembled using a raft crane or the like, or a total scaffold construction method in which a scaffold is built under a roof structure and a structure is constructed on the scaffold.

However, in these conventional roof structure construction methods, the above-mentioned jack-up construction method and lift-up construction method for constructing the entire roof structure assembled on the ground foundation at once Since the roof structure has a large diameter, a heavy load is imposed on the lifting device and the push-up device for jacking up, and the device itself requires a large-scale heavy machine of enormous scale and capacity. There was a risk that it would be difficult to secure the site.
Furthermore, since the entire roof structure is assembled on the ground foundation, the scale of the temporary support pillars must be increased. Further, even in the above-mentioned total scaffolding method, the scale of the scaffolding has become large corresponding to the large roof structure. In addition, each of these construction methods involves dangerous work in high places, and work safety cannot be ensured.

[0004] Therefore, as seen in the above-mentioned crane construction method, etc., which the applicant of the present invention has been earnestly researching, a roof structure is assembled into a block in a predetermined size on a foundation, and these are used by a lifter crane or the like. A block construction method was proposed, which is, so to speak. The outline is shown in FIG. Briefly, the outermost ring structure that defines the outer periphery of the final roof structure is built on the lower structure, and the middle of the central stretched frame is intermediate on the inner foundation of these structures. A partial ring structure is constructed.

When the construction of each of these structures is completed, the central part tensioned frame is raised by lifting or pushing up, and the joint part of the outer periphery thereof is matched with the joint part of the inner periphery of the intermediate ring structure. At this point, these joints are connected, and when the connection is completed, these connected structures are further lifted or lifted to raise the joints on the outer periphery of the intermediate ring structure to the outermost peripheral ring. When the joints on the inner circumference of the structure are matched, these joints are connected to complete the construction.

With this block construction method, even a large roof structure having an extremely large diameter, which has been impossible in the past, can be easily constructed using a general crane, push-up device, etc. It requires less work, is safe, does not require much material for erection, and can shorten the construction period and cost.

[0007]

However, with the proposal of this epoch-making block construction method, a large roof structure can be constructed easily and at low cost even if a general crane or push-up device which is not large-scale is used. Although it is possible to do, the erection columns for assembling each block roof structure, and the cranes and push-up devices for lifting or pushing up these structures,
It was still required for each block or needed to move between blocks. It was costly to prepare these pieces of equipment for each block, and moving the pieces of equipment between blocks was inefficient with a lot of troublesome work.

In view of the above, the present invention solves the problems of the conventional construction method for a roof structure, and utilizes the advantages of the block construction method that is safe and can be constructed with equipment with low capability, while It is an object of the present invention to provide a method for constructing a roof structure that can be easily moved in a building and can reduce the number of equipments, and can reduce waiting time and work time.

[0009]

Therefore, the present invention provides a roof structure construction method for constructing a roof structure on a foundation while connecting a plurality of annual ring-shaped roof blocks from the central portion toward the outer peripheral side. While supporting each roof block with temporary columns installed on the foundation of each outer peripheral lower part, assembling sequentially or simultaneously, move from the central part to the outer peripheral side on a plurality of moving rails laid radially from the central part The plurality of push-up devices are used to sequentially raise the roof blocks from the central portion toward the outer peripheral side and sequentially connect joint joints between adjacent roof blocks. Further, the present invention lays rails for temporary columns between the moving rails for the plurality of push-up devices radially or in parallel to the moving rails, and further extends roofs from the central portion toward the outer peripheral side. In accordance with the assembly of the blocks, the plurality of temporary columns are moved on the rails for these temporary columns from the central portion to the outer peripheral side. In the present invention, the moving rail and the temporary support rail for the push-up device are arranged in a plurality of rows, and the push-up device and the temporary support mounted on the plurality of row rails are alternately used as a pair to move. The roof blocks are assembled and pushed up in order from the central portion toward the outer peripheral side, and these are means for solving the problems.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a method for constructing a roof structure according to the present invention will be described below in detail with reference to the drawings. 1 to 3 show a first embodiment of a method for constructing a roof structure of the present invention, and FIGS. 1 (A) to 1 (C) are sectional views of the first half step during the construction of the roof structure, 2A and 2B are cross-sectional views of the latter half process, and FIG. 3 is an overall plan view of the roof structure. As shown in FIG. 1, the method of constructing a structure according to the present invention includes a plurality of annual ring-shaped roof blocks 1A to 1E from the central portion toward the outer peripheral side.
In the method for constructing the roof structure 1 in which the roof structure 1 is constructed on the foundation G while connecting the roof blocks 1A to 1
Temporary stanchions 3 in which E is installed on the foundation of each outer peripheral lower part
A plurality of push-up devices 4 and 4 that are sequentially or simultaneously assembled while being supported by A to 3E and that are moved radially from the central portion to a plurality of moving rails 2, 2 ... ..., the roof blocks 1A to 1E are sequentially lifted from the central portion toward the outer peripheral side, and joint portions 5A to 5A
The feature is that 5D is sequentially connected.

The details will be described below. As can be understood from FIG. 1C and FIG. 3 described later, the roof structure 1 is divided into a plurality of annual ring-shaped roof blocks 1A to 1E.
Although the illustrated example is a circular roof structure, it goes without saying that it may be elliptical, rectangular, or polygonal in a plane. Further, in the illustrated example, the blocks are divided into five blocks 1A to 1E, but the number of blocks to be divided can be appropriately selected.
The number is not limited to five. Furthermore, the illustrated roof structure 1 has a multi-stepped shape and is suitable for a green roof structure in which a green unit or the like is placed on each step, but the present invention is not limited to this. The illustrated circular roof structure 1 will be described below as an example.

As shown in FIG. 1A, a foundation G such as the ground is provided.
The outermost peripheral fifth roof block 1E is assembled on the fifth erection pillars 3E installed at a plurality of positions on the circumference at a position that defines the outermost peripheral edge of the roof structure 1. The outermost peripheral fifth roof block 1E may be preassembled, but may be assembled last. Inside the range defined by the outermost peripheral fifth roof block 1E, a plurality of moving rails 2, 2, ... Are laid radially on the foundation G from the central portion toward the outer peripheral side. Push-up devices 4, 4 ... Used to push up each roof block described later on these moving rails 2, 2.
Is placed rolling. First, as shown in FIG.
In the upper central part, temporary support columns 3A, 3A installed at a plurality of locations on the foundation G at the outer peripheral position of the central first roof block 1A.
Small circular center first roof block 1 supported by A ...
A is assembled. In the present embodiment, these first temporary columns 3A, 3A ... Are installed on the foundation G outside the moving rail 2.

Before the completion of the assembly of the small circular first central roof block 1A or after the completion of the assembly, the central first roof block 1A is adjacent to the central first roof block 1A during the preparation for the push-up operation by the push-up device 4 described later. Then, the ring-shaped second roof block 1B is assembled on the outer periphery thereof. The ring-shaped second roof block 1B has second temporary support columns 3B and 3B installed at a plurality of locations on the foundation G at the lower outer periphery thereof.
It can be assembled while being supported by. The inner peripheral dimension of the ring-shaped second roof block 1B is configured to be substantially equal to the outer peripheral dimension of the central first roof block 1A, and the joint joint portion 5A is formed on their opposing surfaces. To prepare for the push-up operation of the central first roof block 1A, the push-up device 4 is placed at a predetermined position on the moving rail 2 from the central portion rather than the first temporary support columns 3A installed at the lower outer periphery thereof. And is fixed on the foundation G with an outrigger, or is secured to the moving rail 2 by a brake lock or the like for safe construction. While preparing for push-up work of these central first roof blocks 1A,
After the assembly of the ring-shaped second roof block 1B is completed, the push-up work of the push-up devices 4 on the plurality of moving rails 2 is started all at once.

Although the push-up device will not be described in detail, a general push-up device, for example, a telescopic support formed by fitting a plurality of pipe members having different diameters, is provided alongside the device itself. By successively lifting it with a lifting member such as a jack installed on the tower and fixing each pipe member at the extension position with a pin member, etc., the roof block fixed to the upper part of the expansion support is gradually pushed up, etc. Various forms of can be adopted. When the push-up device 4 is extended from the state shown in FIG. 1 (A), the central first roof block 1A continues to rise apart from the first temporary support column 3A whose outer periphery was supported. When the outer circumference of the central first roof block 1A becomes the same as the height of the joint joint of the inner periphery of the ring-shaped second roof block 1B assembled on the outer side thereof, these first joint joints 5A are connected to each other. Connect with an appropriate fixture.
Preferably, the ring-shaped second roof block 1B is swung slightly upward about the second temporary support column 3B immediately before the joint joints 5A are at the same height, so that the ring-shaped second roof 3B is swung upward. An operation is performed in which the joint surface on the inner peripheral side of the block 1B is inclined outward so as to effectively prevent the joint surfaces of the first joint joint portion 5A formed in a substantially vertical plane from interfering with each other.

When the connection is completed, the push-up device 4 is contracted and released from the central first roof block 1A. At this time, the central first roof block 1A and the ring-shaped second roof block 1B are integrated into the ring-shaped second roof block 1A.
The roof block 1B is supported by the second temporary support columns 3B installed on the lower outer periphery of the roof block 1B. Unlock the plurality of push-up devices 4 released from the load, move the rails 2 for movement to the outer peripheral side, and the original ring-shaped second
The roof block 1B is set from the center of the second temporary support column 3B at the bottom. On top of that, the basic G
Fix it with an outrigger on the top, or fix it to the moving rail 2 with a tie such as a brake lock. During these operations, the ring-shaped third roof block 1C is assembled while being further adjacent to the outer peripheral side and being supported by the third temporary columns 3C, 3C, .... This state is shown in FIG.

This process is sequentially repeated from the central portion to the outer peripheral side. In FIG. 1 (C), the second push-up work is completed, and the second joint connecting portion 5B between the outer circumference of the ring-shaped second roof block 1B and the inner circumference of the ring-shaped third roof block 1C is connected. At the same time, the ring-shaped fourth roof block 1D is assembled on the fourth temporary support column 3D. From the state of FIG. 1 (C), the push-up device 4 moves on the moving rail 2 to the outer peripheral side and is set to the lower 4'position of the ring-shaped third roof block 1C. The push-up device 4 is extended at the position 4 ′ in FIG. 1 (C), and the third joint connecting portion 5C between the outer circumference of the ring-shaped third roof block 1C and the inner circumference of the ring-shaped fourth roof block 1D is extended. 2A shows a state in which is connected.

When the third push-up operation in FIG. 2A is completed, the push-up device 4 is contracted, the rail 2 for movement is moved to the position 4 ", and the fourth push-up operation is performed. Ring-shaped fourth roof block 1
The fourth joint joint portion 5D between the outer circumference of D and the inner circumference of the outermost fifth roof block 1E is connected, and the construction of the roof structure 1 is completed. FIG. 2B shows this state. FIG. 3 is an overall plan view of the roof structure 1 whose construction has been completed. The moving rails 2, 2, ... Radially laid from the central portion toward the outer peripheral side, and the moving rails 2 are shown. The set configuration of the push-up device 4 moving in the radial direction (arrow) is clearly shown.

FIGS. 4 and 5 show a second embodiment of the method for constructing a roof structure according to the present invention. In this embodiment, a temporary support column is provided in which the assembly of each roof block is installed at the lower outer periphery. 3 and the intermediate temporary support pillars 7 installed at the lower part of the inner circumference, and in the present embodiment, the roof structure 1 is not directly built on the foundation G such as the ground, It is constructed on an outer peripheral frame (a spectator stand or the like) 6 as a lower structure that defines the outermost peripheral edge of the structure 1. Therefore, in the present embodiment, on the ground G corresponding to the foundation in the outer peripheral frame 6, the steps similar to those in the above-described embodiment are performed in the same manner as in the central first roof shown in FIGS. 4 (A) to 4 (E). Block 1A ~ Ring-shaped third roof block 1
Construction of C is performed. Next, as shown in FIG. 5 (A), the ring-shaped fourth roof block 1D assembled on the outer peripheral frame 6 is connected, and finally, as shown in FIG. 5 (B), the outer periphery of the outer peripheral frame 6 is connected. The construction of the roof structure 1 is completed by connecting the outermost fifth roof block 1E that also serves as a wall. Therefore, in the present embodiment, the push-up device 4 mounted on the moving rail 2 requires an extension stroke corresponding to the height of the outer peripheral body 6 at the time of final push-up.

In the method for constructing a roof structure of the present invention, although not shown and described, between the moving rails 2 and 2 for the plurality of push-up devices 4,
The temporary support rails are laid radially or in parallel with the moving rails 2, and the plurality of temporary support pillars, for example, substantially the same, are assembled in accordance with the assembly of the roof blocks 1A to 1E from the central portion toward the outer peripheral side. Only the temporary columns 3A, 3A, ... Which should be arranged on the circumference may be configured to be moved from the central portion to the outer peripheral side on these temporary column rails. With such a configuration, during the push-up work of the roof block on the inner side from the central portion, the temporary support columns 3A released from the burden of the load are mounted on the temporary support column rails laid independently of the moving rails 2. Can be moved to the assembly position of the roof block on the outer peripheral side, and it is possible to reduce the material for temporary support columns without delaying the construction period.
Moreover, since it is laid independently of the moving rail 2, it can be used for a temporary column that needs to be moved and set further outward than the moving rail. The present embodiment is optimal for the first embodiment constructed only on the foundation.

Further, in the method for constructing a roof structure according to the present invention, the moving rail 2 for the push-up device 4 is provided.
Also, the rails for temporary support columns are arranged in a plurality of rows, and the push-up devices 4 and the temporary support columns 3A mounted on the rails in a plurality of rows are alternately used as pairs to be moved, and the roofs are sequentially moved from the central portion toward the outer peripheral side. The blocks 1A to 1E may be assembled and pushed up. With this configuration, before the push-up work of the roof block inside the central portion is completed, the push-up device 4 and the temporary support column 3 that are placed on the opposite side of the pair of multi-row rails are mounted.
A is moved to the assembly position of the roof block on the outer peripheral side (the push-up device 4 and the temporary support column 3A are reduced to a height that does not interfere with the roof block on the inner side from the central portion, and are moved to the assembled position of the roof block on the outer peripheral side. Since it can be moved), the roof block on the outer peripheral side can be assembled on the moved push-up device 4 and the temporary support column 3A, and the push-up work can be prepared. Furthermore, the work period can be shortened.

FIG. 6 is a cross-sectional view of a roof structure that is actually frequently used, and shows suspended floors 8A, 8 on which maintenance equipment and lighting equipment are placed.
B is assembled on the foundation G and is simultaneously lifted when the roof block is pushed up. I won't go into detail,
Finishing materials and greening units on the outside of the roof structure (which are encouraged for the purpose of urban greening and air purification and the effect of suppressing high temperature in the dome, and culture soil is added to each step on the upper surface of the stepped roof structure shown in the figure. Plantin-like units in which plants are planted are also pushed up at the same time. Also, unless consideration is given to reducing the number of temporary columns, each roof block 1A-
It is within the scope of the present invention to simultaneously assemble 1E on a foundation.

Although the respective embodiments of the present invention have been described above, the shape of the roof structure, that is, the shape of each roof block (if it has an annual ring shape, is circular in plan view) within the scope of the gist of the present invention. Not limited, elliptical, rectangular, polygonal, etc. cross-sectional shape and radial width may differ for each roof block), type (in addition to truss structure, girder structure, etc.), for moving rails and temporary columns Rail laying form (may be laid on the foundation or may be laid in the engraved groove) and array form (preferably radial around the center and parallel to this) , If there is a risk of interference with the auxiliary equipment of the roof block, each rail can be configured so that its swing can be adjusted on the foundation), the shape and type of the push-up device, temporary support pillar, and intermediate temporary support pillar, etc. And the number of arrangements, These rails are mounted on the rails and the roof blocks are supported (preferably, not only simple support, but also deviation from a temporary support column that serves as a fulcrum for tilting when connecting joint joints occurs. A supporting form that does not exist), the shape and connection form of the joint joint between the roof blocks, the shape and form of the outer peripheral frame, and the like can be appropriately adopted.

[0023]

As described above in detail, according to the present invention, a roof structure for constructing a roof structure on a foundation while connecting a plurality of annual ring-shaped roof blocks from the central part toward the outer peripheral side. In the method of constructing a building, each roof block is assembled sequentially or simultaneously while being supported by temporary columns installed on the foundation of each outer peripheral lower part thereof, and at the same time, a plurality of moving rails laid radially from the central part to the central part From multiple push-up devices that move from the
By sequentially raising the roof blocks from the central part toward the outer periphery and connecting the joints of adjacent roof blocks one by one, the minimum number of general-purpose equipment with normal capacity is used. There is no limit, and construction of each roof block and push-up work can be done systematically and efficiently without waiting time, shortening the construction period and greatly reducing the construction cost, and without the work of high places. It's safe.

Further, between the moving rails for the plurality of push-up devices, rails for temporary columns are laid radially or in parallel with the moving rails, and each roof extends from the central portion toward the outer peripheral side. When the plurality of temporary columns are moved from the central part to the outer peripheral side on these temporary column rails in accordance with the assembly of the blocks, the load of the load is applied during the push-up work of the roof block inside the central part. It is possible to move each temporary strut released from the above to the assembly position of the roof block on the outer peripheral side on the temporary strut rail laid independently of the moving rail, and the temporary strut material without delay in the construction period. Can be reduced. Moreover, since it is laid independently of the moving rail, it can be moved further to the outer peripheral side than the moving rail.
Can be used for temporary columns that require a set.

Further, the moving rails for the push-up device and the rails for the temporary columns are formed in a plurality of rows, and the push-up devices and the temporary columns mounted on the rails for a plurality of rows are alternately used as a pair to move. When sequentially assembling and pushing up each roof block from the central part toward the outer peripheral side, before completing the push-up work of the roof block inside the central part,
Since the push-up device and the temporary support column mounted on the other side of the pair of the plural-row rails can be moved to the outer peripheral side roof block assembly position, the outer peripheral side roof block is assembled by the moved push-up device. Moreover, the work can be performed on the temporary support, and the push-up work can be prepared, and the work period can be further shortened. Thus, according to the present invention, while utilizing the advantages of the block construction method that is safe and can be constructed with low-capacity equipment, it is possible to easily move the equipment between blocks and reduce the number of equipment, Provided is a method for constructing a roof structure that can reduce waiting time and work time.

[Brief description of drawings]

FIG. 1 shows a first embodiment of a method for constructing a roof structure according to the present invention, and FIGS. 1 (A) to 1 (C) are cross-sectional views of a first half step during the construction of a roof structure.

2 (A) and 2 (B) are sectional views of a latter half process.

FIG. 3 is an overall plan view of the roof structure.

FIG. 4 shows a second embodiment of the method for constructing a roof structure according to the present invention, and FIGS. 4 (A) to 4 (E) show the first half step during the construction of the roof structure on the foundation. FIG.

5 (A) and 5 (B) are cross-sectional views of the latter half process on the outer peripheral body.

FIG. 6 is a cross-sectional view of a roof structure that is actually heavily used, having a suspended floor on which maintenance equipment and lighting equipment are placed.

FIG. 7 is an overall sectional view showing a conventional construction method for a roof structure.

[Explanation of symbols]

1 ... Roof structure 1A: Central first roof block 1B .... Ring-shaped second roof block 1C: Ring-shaped third roof block 1D ... Ring-shaped fourth roof block 1E ... Outermost 5th roof block 2 ・ ・ Rail for movement 3 ... Temporary columns 3A ... First temporary support 3B ... Second temporary support 3C ... 3rd temporary support 3D ... 4th temporary support 3E ... Fifth temporary support 4 ... Push-up device 5 ··· Joint joint 5A --- First joint joint 5B ... ・ Second joint joint 5C ... ・ 3rd joint joint 5D ... 4th joint joint 6 ... Peripheral structure (stand) 7 ... Intermediate temporary support 8 ... Suspended floor G ... Basic

Claims (3)

[Claims] 1. In a method of constructing a roof structure on a foundation while connecting a plurality of annual ring-shaped roof blocks from the central portion toward the outer peripheral side, in each roof block, a lower portion of each outer peripheral portion of each roof block is constructed. While being assembled sequentially or at the same time while being supported by temporary columns installed on the foundation of the center, a plurality of push-up devices that move from the center to the outer peripheral side on a plurality of moving rails laid radially from the center From the above to the outer peripheral side, the respective roof blocks are sequentially lifted, and joint joint portions of adjacent roof blocks are sequentially connected to each other. 2. The temporary support rails are laid radially between the moving rails for the plurality of push-up devices or in parallel with the moving rails, and each roof extends from the central portion toward the outer peripheral side. The method for constructing a roof structure according to claim 1, wherein the plurality of temporary columns are moved from the central portion to the outer peripheral side on the rails for the temporary columns in accordance with the assembly of the blocks. 3. A rail for moving and a rail for temporary support for the push-up device are provided in a plurality of rows, and the push-up device and the temporary support mounted on the rails for a plurality of rows are alternately used as a pair to move. 3. The method for constructing a roof structure according to claim 1, wherein each roof block is assembled and pushed up from the central portion toward the outer peripheral side in order.