JP2000336826A - Roof support structure, and roof erection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an economical roof support structure capable of stably supporting a roof without making use of any side wall large its strength. SOLUTION: This roof support structure supports a roof 1 without erecting any struts in an area below the roof corresponding thereto, and comprises a plurality of bow-shaped columns 2 erected around this area below the roof with specified intervals so that a tip side is sprung toward the center of the area below the roof, and an annular roof receiving member 3 provided to connect tip parts of these bow-shaped columns 2 to each other, and a peripheral edge part of the roof 1 is connected to the roof receiving member 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof support structure and a roof erection method for a structure, such as a baseball field or a soccer field, in which a column for roof support cannot be erected in an internal space.

[0002]

In recent years, large-scale multi-purpose stadiums have been constructed in various places. Needless to say, however, such structures cannot be provided with pillars for supporting a roof in an internal space. Therefore, the roof is usually supported by reinforced concrete side walls. That is, when the roof is erected, the horizontal force generated at the end of the roof is originally designed to be processed by the side wall dedicated to stand support.

[0003] However, when such a roof support structure is employed, the strength of the side wall must be extremely large so as to sufficiently withstand the horizontal force. In other words, a side wall strength incomparable to the case where only the stand is supported is required, resulting in an uneconomical structure. In the past, after the stand was constructed, the roof was laid and erected. this is,
This is because construction work (roofing work / construction work and stand construction work) cannot be performed at the same time for safety reasons. However, in order to further shorten the construction period, the development of a construction method capable of simultaneously performing the roofing work / construction work and the stand construction work has been awaited.

Accordingly, an object of the present invention is to provide an economical roof support structure capable of stably supporting a roof without using a strong side wall. It is another object of the present invention to provide a roof erection method that can simultaneously perform a roof erection / installation operation and a stand portion construction operation, thereby further shortening a construction period.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a structure for supporting a roof without erecting a pillar in a corresponding lower area of a roof, the leading end of the structure being directed toward the center of the lower area of the roof. A plurality of bows erected at predetermined intervals around the lower area of the roof so as to protrude, and an annular roof receiving member provided to connect tips of the bows to each other; Is connected to the roof receiving member.

Another object of the present invention is to provide a method of erection of a roof for obtaining the above-mentioned roof support structure, wherein an arch is erected and a roof receiving member is attached to the arch. B on the ground, and a rotatable peripheral edge that is finally connected to the roof receiving member at the periphery of the roof assembled in the B process, and is bent downward. C step of raising the roof higher than the erection position and raising the peripheral edge to a state where the peripheral edge can be pivoted to the final position. After this C step, pivot the peripheral edge to the final position. The method according to claim 1, further comprising: a step D for performing the following steps; and a step E for lowering the roof to the erection position after the step D, and further connecting the peripheral edge to the roof receiving member. You.

That is, according to the present invention, a plurality of arch pillars, that is, curved pillars whose tip side protrudes toward the center of the roof lower area, are erected around the lower area of the supported roof. An annular roof receiving member (compression ring) is provided so as to connect the tips of the columns, and the roof is supported by connecting the peripheral edge of the roof to the roof receiving member. In this case, tension is applied to the roof receiving member by the weight of the roof, but since the roof receiving member connects the tips of the plurality of protruding bows, a compressive force is also applied at the same time. Therefore, the tension acting on the roof receiving member is canceled out by the compressive force, and as a result, the roof is reasonably and stably supported. In other words, by employing the roof support structure of the present invention, the roof can be stably supported economically without using a strong side wall.

According to the present invention, when such a roof support structure is obtained, that is, when the roof is erected, the roof is erected, and the peripheral edge portion (rotary connection member) is bent downward. Raise the roof once higher than the erection position (and to a position where the peripheral edge can rotate to the final position), rotate the peripheral edge to the final position there, and then lower the roof to the erection position Then, the peripheral edge is connected to the roof receiving member. By the way, conventionally, when raising and setting a laid roof, its peripheral edge may interfere with the support structure, so that it is necessary to spend a great deal of labor and carefully perform the roof lifting work. Was. However, adopting the roof erection method of the present invention eliminates such labor. In other words, in the present invention, the peripheral edge of the roof is pivotable, and when the roof is raised, it is retracted and the peripheral edge is pivoted to the final position immediately before connection to the roof receiving member, There is no problem caused by mutual interference between the roof receiving member and the peripheral edge. Further, in the present invention, since the roof is erected between the bows curved so as to project toward the center of the lower area of the roof as described above, the area of the area overlapping with the stand portion is extremely small. Therefore, it is possible to construct the stand in parallel while performing the work of laying and erection of the roof, and as a result, the construction period is further reduced.

[0009] In the present specification, the "region under the roof corresponding to the roof" means a region immediately below the roof. In particular, if the roof is to be erected on the stadium,
The area under the roof refers to the ground. Similarly, in the present specification, the "final position of the peripheral edge" is, for example, a position where the peripheral edge naturally extends from the main body of the roof, in other words, both surfaces are continuous. Meaning the position of the peripheral edge.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. FIG.
Is an external view of a large-scale multi-purpose stadium in a state where the roof erection is completed, FIG. 2 is a sectional view of a main part showing a roof support structure, and FIG.
FIG. 4 is a plan view of a main part of the roof support structure, and FIGS.
FIG. 4 is a cross-sectional view of a main part showing a procedure for installing a roof.

The structure to which the technology of this embodiment is applied is as follows:
It is a dome-shaped large-scale multipurpose stadium shown in FIG. That is, the roof support structure according to the present embodiment (hereinafter, referred to as the present roof support structure) is for stably supporting the roof 1 without standing uprights in the corresponding roof lower region (ground). is there. The roof 1 is obtained by attaching a metal plate or a film material to a disk-shaped truss structure. In a state where the stadium is completed, the same roof surface material is arranged between the protruding portions of the bow to be described later (this portion also constitutes the roof of the stadium).

The roof support structure includes a plurality of arch columns 2 and an annular roof receiving member (compression ring) 3 as main components. Of these, the arch column 2 is erected at a predetermined interval around the lower area of the roof, and as can be seen from FIG. 2, the tip side protrudes toward the center of the lower area of the roof (right side in the figure). (Shape). Here, as the bow 2, a steel pipe filled with concrete is used.

On the other hand, as shown in FIG. 3, the roof receiving member 3 has a role of connecting the tips of the bows 2 to each other.
As the roof receiving member 3, a steel pipe filled with concrete is used. Further, in the present embodiment, the arch column 2 is configured to be supported by the supporting columns 4 made of steel reinforced concrete and the inclined beams 5 made of reinforced concrete. Incidentally, the diagonal beam 5 also serves as a structural material of the stand portion. Specifically, it will be used directly or indirectly for setting up the audience seats.

As described above, in the present embodiment, the "Gokude ramen structure" is formed by using the bow 2 and the roof receiving member 3.
By constructing a roof support structure called a roof, and further connecting the peripheral edge 1a of the roof 1 to the roof receiving member 3,
The roof 1 is supported. In this case, tension is applied to the roof receiving member 3 by the weight of the roof 1, but since the roof receiving member 3 connects the tips of the plurality of bow columns 2, a compressive force is also applied at the same time. Therefore, the tension acting on the roof receiving member 3 is offset by the compressive force, and as a result, the roof 1 is supported stably without difficulty.
In other words, by adopting the present roof support structure, it is possible to economically support the roof 1 stably without using a strong side wall.

Next, a method of erection of a roof according to the present embodiment, that is, a method of erection of a roof for obtaining the above-described roof support structure, will be described in detail with reference to FIGS. When the present roof erection method is performed, first, the bows 2 are erected at predetermined intervals around the roof lower region (ground) (however, the tip of the bow 2 and the end of the stand portion are made to coincide). In addition, a column 4 and a diagonal beam 5 are provided in conjunction with this. Then, the roof receiving member 3 is attached to the bow 2 (Step A). That is,
The tip of the bow 2 is connected annularly by the roof receiving member 3. After that, a stand section is to be constructed, and this work is performed in parallel with the roofing work and erection work described below.

Now, when the virtued ramen structure mainly composed of the bow column 2 and the roof receiving member 3 is completed (or simultaneously with the construction work of the virtued ramen structure), the roof 1 is assembled on the ground (B). Process). The structure of the roof 1 and the state where the construction of the Gotoku ramen structure is completed are as shown in FIG. When the construction of the roof 1 is completed, the roof 1 is raised using the jack 6. More specifically, the roof 1 is placed at its original erection position while the pivotable peripheral edge 1a, which is finally connected to the roof receiving member 3 at the periphery of the roof 1, is bent downward. (Step C). However, the rising height of the roof 1 at this time is a height at which the peripheral edge portion 1a can rotate to the final position without interfering with the other. Incidentally, as shown in FIG. 3, the peripheral edge 1a has a triangular structure. Therefore, the peripheral edge 1a is rotated by changing the distance between the adjacent vertices (the distance between the vertices is maximized when the peripheral edge 1a is rotated to the final position).

After the roof 1 is raised to the above-mentioned height, the peripheral edge 1a is brought to a final position, that is, the peripheral edge 1a is substantially linearly connected to the roof main body. (Step D). The state where this operation is completed is as shown in FIG. When the state shown in FIG. 5 is obtained, the roof 1 is lowered to the original erection position, and the edge 1a of the roof 1 is further connected to the roof receiving member 3 (step E). As a result, the roof 1 is in a final support state as shown in FIG. That is, the roof support structure described above is obtained.

When the above-described roof supporting method is used to obtain the above-described roof supporting structure, the roof 1 is installed between the bow columns 2 curved so as to project toward the center of the lower area of the roof. It is. Therefore, there is almost no area where the roof 1 and the stand part overlap vertically, and the stand part can be constructed in parallel with the roof erection and erection work. As a result, a further shortening of the construction period is realized. In addition, conventionally, when raising a grounded roof and setting it in a fixed position, its peripheral edge may interfere with a support structure, and in order to avoid this, a great deal of labor is required, The roof climbing work had to be done carefully. However, if this roof erection method is adopted, no trouble occurs due to mutual interference between the roof receiving member 3 and the peripheral edge 1a of the roof 1, so that such labor is unnecessary.

Next, a second embodiment of the present invention will be described.
A description will be given with reference to FIG. 7 showing the appearance of a medium-sized multipurpose stadium in a state where the roof has been erected. Note that, also in the present embodiment, the technical concept, the basic configuration, and the obtained effect are substantially the same as those in the first embodiment.
Therefore, the following description focuses on the differences from the first embodiment.

The present embodiment is characterized in that the roof 11 has a rectangular shape (100 m × 80 m) instead of a disk shape. Then, a plurality of bows 12 erected at predetermined intervals around the roof 11 so as to project the roof 11 toward the center of the lower area of the roof, and a tip of the bow 12 are connected to each other. It is supported using a rectangular roof receiving member 13. Note that the bow 12 is a truss structure. Further, although not shown in detail, the peripheral edge of the roof 11 is
Linked to

In the first and second embodiments, the case where the roof has a disk shape and a rectangular shape, respectively, has been described as an example. However, the present invention is not limited to such a shape. . In addition, the present invention is also applicable to a case in which a triangular roof or a polygonal roof having five or more corners is erected and supported.

[0022]

According to the present invention, it is possible to provide an economical roof support structure capable of stably supporting a roof without using a strong side wall. In addition, it is possible to simultaneously perform the work of laying and erection of the roof and the work of constructing the stand portion, so that the construction period can be further shortened.

[Brief description of the drawings]

FIG. 1 is an external view of a large-scale multi-purpose stadium in a state where the roof has been erected (first embodiment).

FIG. 2 is a sectional view of a main part showing a roof support structure (first embodiment).

FIG. 3 is a plan view of a main part showing a roof support structure (first embodiment).

FIG. 4 is a sectional view of a main part showing a procedure for installing a roof (first embodiment).

FIG. 5 is a sectional view of a main part showing a procedure for erection of a roof (first embodiment).

FIG. 6 is a sectional view of a main part showing a procedure for erection of a roof (first embodiment).

FIG. 7 is an external view of a medium-sized multipurpose stadium in a state where the roof has been erected (second embodiment).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof 1a Peripheral edge part 2 Arch pillar 3 Roof receiving member (compression ring) 4 Prop 5 Sloping beam 6 Jack

Continuing from the front page (72) Inventor Shizuo Mitsunobu 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Yoshihito Kazama 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. Inside the company (72) Inventor Kenya Tomi 1-25-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Etsuro Suzuki 441 Imai Minamicho, Nakahara-ku, Kawasaki-shi, Kanagawa Prefecture

Claims (2)

[Claims] 1. A structure for supporting a roof without standing uprights in a corresponding lower area of a roof, wherein the lower area of the roof projects toward a center of the lower area of the roof. A plurality of bows erected at predetermined intervals around the periphery of the roof, and an annular roof receiving member provided so as to connect the tips of the bows to each other. A roof support structure connected to a member. 2. A method of erection of a roof for obtaining a roof support structure according to claim 1, wherein: A step of erecting a bow, and further attaching a roof receiving member to the bow; A step B of assembling the roof on the ground, and a state in which the pivotable peripheral edge finally connected to the roof receiving member at the periphery of the roof assembled in the step B is bent downward. C step of raising the roof higher than the erection position until the peripheral edge can rotate to the final position, and after this C step, rotating the peripheral edge to the final position. Moving the roof to the erection position after the D step, and further connecting the peripheral edge to the roof receiving member.