JPS6314938A - Building of dome roof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a dome roof, particularly to a construction method for a dome roof used in a large-scale building.

<Conventional technology> Typical construction methods for dome roofs as described above include:
A known construction method is to install a temporary support in the center of the building, and after assembling the N-body part of the roof structure, which is divided concentrically into several parts, from the center of the dome roof, sequentially lift it up from the center of the dome roof and sequentially attach it to the temporary support.

<Problems to be solved by the invention> However, in the case of the construction method using a temporary branch as described above, until the dome roof assembly is completed and the periphery of the dome roof is completely fixed to the outer roof foundation, During this period, the weight d of the roof IrV4 structure continues to be concentrated on these temporary supports, so it is necessary to use temporary supports that are quite large and have a considerable supporting capacity, which will be dismantled after the dome roof is completed. For this reason, especially in the case of a large-scale dome roof, it takes a lot of effort to assemble or install temporary supports, and even dismantle it, making the construction of the dome roof complicated and resulting in a loss of 1 to 20%. There are problems like this.

<1000 for solving the problems> The dome roof construction method of the first invention of this application is a dome roof foundation in which both ends of the V-shaped roof beam members on the open leg side are provided on the outer edge of the dome roof. After repeating the work of fastening to the base of the dome roof in sequence, both ends of the open leg side of a similar V-shaped roof beam member are joined to the tops of two adjacent roof beam members, and this joint is Or, by repeating the process of connecting two adjacent points at the top of the roof beam members with appropriate beam materials in the circumferential direction and center direction of the dome roof, the roof beams that form the triangular shape of the roof are installed on the dome roof. The aim is to build in space.

The method for constructing a dome roof according to the second invention of this application includes, as a V-shaped roof beam member used in the first invention,
This is a method of construction in which two beams are joined at one end with a joining fitting having multiple joints.

In the second aspect of the invention, the number of beams to be finally jointed collectively using the joining fittings depends on the number of fixing points to be fixed to the dome roof foundation and the intervals between these fixing points. In addition, the number of joints of the joining metal fittings used to join these beam materials also differs. The specific number of such joints is generally about 5 to 6 as shown in the embodiments.

<Function> As in the above method, by adopting a construction method in which the groove construction of the roof beams is carried out sequentially from the dome roof foundation toward the center of the dome roof, most of the support for the already installed roof beam members is placed on the dome roof foundation. You can make them bear the burden. Therefore, the support of the roof structure during construction becomes extremely simple, and there is no need to provide temporary supports of large groove construction as in the conventional construction method.

<Example> Hereinafter, a construction method according to an example of the present invention will be explained in detail with reference to the accompanying drawings.

Embodiment 1 First, as shown in Fig. 1 (A), the work was done to fasten both ends of the V-shaped roof beam member 2 on the open leg side with metal fittings to the inside of the dome roof foundation 1 about 37 m in diameter. Repeat sequentially at intervals in the circumferential direction. This V-shaped roof beam member 2 is, for example, as shown in FIGS. 2(8) and 2(B).
In order to form the spherical surface of the dome roof, two wooden beams 3 with a length of about 10 m, such as laminated wood, which are manufactured by curving to match the curvature of the dome roof, are used.
It is sufficient to use a V-shaped joint made by joining them in a V-shape using a metal joining fitting 4 having six joining hands 5. That is,
In the illustrated example, this joining fitting 4 is constructed by combining iron plates in a hexagonal shape and welding each face of a hexahedron as joining surfaces 4a, and by fixing joint hands 5 to the joining surfaces 4a, respectively. On the other hand, a port 5C is welded and fixed to the inside of the joint 5, and a connecting plate 5b is provided between the ports 5C.
are fixed by welding, and a bolt 5C is attached to the joint by a nut 5a located inside the joint fitting 4. Then, if the end faces of the beam 3 are opposed to the two adjacent joining surfaces 4a of the joining fittings 4, and the connecting plates 5b and bolts 5C are housed in the recesses formed on the upper and lower surfaces of the ends of the beams, these By bolting the four joints 5 on the top, bottom, left and right sides of the end of the beam to the end of the beam, and fully tightening the bolt 5C inside the joint, the end of the beam is pressed against the joint surface 4a ( Note that in this press-contact state, the connecting plate 5b or bolt 5C does not come into contact with the joint surface 4a, but faces each other with an appropriate space).

In this way, the two beam members 3 are fixed to the joining fittings 4, and the above-mentioned V
A letter-shaped roof eastern part material 2 is made. Furthermore, in this embodiment, a small beam 17 is pre-installed between two beams of the roof beam member 2, but such a small beam 17 is removed in the final process of constructing the roof beam. Needless to say, you can do whatever you want.

After finishing fixing the V-shaped roof beam member 2 to the dome roof foundation 1, as shown in Fig. 1(B), the roof beam member 2 is
A roof beam member 8 formed by connecting two beam members in a figure 7 shape is fastened to each of the dome roof foundation parts 1 between 0 and 1 with similar joining fittings.

Then, a beam material 9 is joined between the dome roof foundation part 1 and the joining metal fitting 4 at the head of the roof eastern part member 8, and a sash 10 is connected between the joining metal fittings at the top of the roof beam members 2 and 8. Join sequentially. Here, in the above and the following explanations, when joining the open leg side end of the beam yaya+f1 beam member to the joint of the joining metal fitting on the head of the roof beam member, the joint that comes on the lower side in the use state is fixed to the joining metal fitting in advance by bolting and temporarily attached as an integral part, and after finishing bolting on the beam O Δ end etc. by the lower jointer, the bolt and nut are fully tightened inside the joining metal fitting. Next, use the procedure of fixing the upper joint to the joining metal fittings, 2+, 1, etc., and similarly tightening the bolt portion that comes out from the bolt hole on the upper side of the joining metal fittings to the inside of the joining metal fittings with nuts.

Figures 2 (C) and (D) show the dome roof foundation part (the part shown in Figure 1 (8)) after the above steps have been completed. In this illustrated example, the dome roof foundation part 1 The joining fitting 6 fixed to has two joining surfaces 7a connected in a V-shape.

A joint member 7 is temporarily attached to each of these joint surfaces 7a in advance, and the end surface of the beam material of the roof beam member 2°8 is brought into contact with these joint surfaces 7a, and the joint member is attached to the end of these beam materials. After attaching the bolts (), fully tighten the bolts protruding inside the joint fittings with nuts, and the roof beam member 2,
The ends of the beams 8 are fastened to the dome roof base 1.

After completing the construction of the outermost roof beam member in this way, as shown in FIG. Both ends of the opened leg side of the V-shaped roof beam member 11 thus made are sequentially joined, and as shown in FIG. Beam material 1
The process of joining 2 is sequentially repeated in the circumferential direction of the dome roof. Next, two adjacent locations on the top of the roof eastern part 11 are successively connected in the circumferential direction with beams 14 (see Fig. 1).
E)). After that, a similar V-shaped roof beam part (A15) is connected between the tops of the adjacent roof beam members 11 (see Fig. 1).
F)) Next, the beam members 16 are successively joined as shown in FIG. In this case, a roof beam with a triangular roof structure is constructed in the dome roof installation space (see Figure 1 (old, (1)).

Figures 3 (A) and (B) show how the small cables 17 are installed when the above construction process is completed. ] The threaded part of the small screw 7117 is fixed by bolting with the mounting bracket 1B.

Embodiment 2 FIG. 4 (8) shows a completed view of a roof beam with a diameter of approximately 37 m constructed by the construction method of the second embodiment of the present invention. This embodiment is constructed using joining metal fittings 21 and 22 having five joining surfaces and joining fittings 23 having six joining surfaces. Then, both ends of the V-shaped roof beam member 24 on the open leg side made of the joining fittings 22 or 23 are joined to the joining fittings 21 fixed at intervals along the dome roof foundation 1, and After joining the beam material 25 between both ends, both ends of a similar V-shaped roof beam member 26 on the open leg side are joined to the top of the roof beam member 24, and the top and middle portions of the roof beam member 26 are joined. A beam material 27 is joined between the roof beam member 24 and the top of the roof beam member 24, and a beam material 28 is joined to the top of the roof beam member 26 at two adjacent locations. After that, roof structure 8I Sagi 426 part 10G,'
m V-shaped house (Ikofgobe', 42 C) joined,
The construction of the illustrated roof beam is completed by joining the beam material 30 between the tops of the roof beam members 29 and 26.

Incidentally, in the above embodiment, the dome roof beam is constructed by joining and combining wooden beams approximately 10 m long and curved with a curvature corresponding to the shape of the dome roof using metal joining fittings. By adopting such a construction method, it is possible to create a dome roof with the following two features. First of all, when designing a dome, the rice of the dome can be freely selected from a wide range, and in particular, a dome roof with a low grain size can be produced. In other words, in conventional general construction methods that combine steel frame materials, the rice is limited to a dome diameter x O,25, and if it is less than that, it will be affected by the weight of the dome roof, wind pressure or snow accumulation applied to the dome roof after installation. This was necessary because dome roofs with low rice plates were difficult to construct, as there was a possibility that the dome roof would collapse due to loads. On the other hand, in the case of the method of the present invention,
Dome roof rice with dome diameter X O, 15~0.18
This makes it possible to construct a flat dome roof. Also, for the same reason, as a second feature, the length is 10 m as mentioned above.
The dome diameter (diameter) is approximately 400m by combining the beam materials of approximately
This makes it possible to construct relatively large dome roofs (conventional construction methods were limited to domes of up to 150 m in diameter).

Embodiment 3 FIG. 4(B) shows a roof beam with a diameter of about 106 m constructed by the construction method of the third embodiment of the present invention. In this third embodiment, except for the base portion of the dome roof, a joining metal fitting 31 having six joining surfaces is used. First, both ends of the V-shaped roof beam members 32 and 33 on the open leg side, which are formed by joining two beam members together using the joining fittings 31, are sequentially fastened to the dome roof base 1, respectively. Also,
A beam member 34 is joined between the top of the roof beam member 33 and the dome roof base. Thereafter, both ends of the open leg side of the V-shaped roof beam member 35 similar to l are joined to the tops of the roof beam members 32 and 33, and a connection is made between the tops of the roof beam members 32 or between the tops of the roof beam members 32 and the roof beam members 33. A beam member 38 is connected between the tops of the respective members. Then, the illustrated dome roof beam is constructed by repeating the same or similar procedure as above from the dome roof base side toward the center of the dome roof.

<Effects of the Invention> According to the dome roof construction method of the present invention constructed as described above, there is no need to set up a temporary branch with a large structure as in the conventional method, and the dome roof can be constructed easily and quickly. It has the effect that it can be done. Furthermore, by using light wooden beams, it is possible to construct a dome roof with a smaller rice and a larger dome diameter than with conventional construction methods.

[Brief explanation of drawings]

Figures 1 (A) to (11) are process explanatory diagrams of the construction method according to the embodiment of this invention, Figure 1 (I) is a sectional view taken along line I-I in Figure 1 (formerly), and Figure 2 (A) is A plan view of the roof beam member used in the example, FIG. 2 (B) is also a side view, and FIG. (D) is an explanatory diagram of Figure 2 (C) seen from the direction ■, Figure 3 [A] is an enlarged view of the ■ part in Figure 1 (1), and Figure 3 (8) is an explanatory diagram of 4(A) and (B) are the plan views of the dome roof constructed using the construction method on the other side, respectively. 1... Dome roof foundation, 2, 8, 11.15°24
．． 26.29.32.33.35...Roof beam part month, 3
,9,10. i2.14,16,25°27.28,3
0.34, 37.38... Beam material, 4.6.21, 22
．． 23.31...Joining metal fittings.

Claims (1)

[Claims] 1. After repeating the work of fastening both ends of the V-shaped roof beam member on the open leg side to the dome roof foundation provided at the outer edge of the dome roof in sequence along the dome roof foundation, The process of joining the open leg side ends of similar V-shaped roof beam members to the tops of two roof beam members and connecting these joints or two adjacent points of the tops of the roof beam members with beam materials is a dome process. A dome roof construction method characterized by constructing a roof beam having a triangular roof structure in a dome roof installation space by repeating the method in the circumferential direction and the center direction of the roof. 2. Claim 1, characterized in that a roof beam member and a beam material are curved according to the curvature of the dome roof.
Construction method described in section. 3. A dome in which both ends of the open leg side of a V-shaped roof beam member obtained by joining one end of two beam members to each other with a joining metal fitting having a large number of joints are attached to the outer edge of the dome roof. After repeating the work of fastening to the roof foundation sequentially along the dome roof foundation, join both ends of the open leg side of the similar V-shaped roof beam members to the joint fittings on the tops of two adjacent roof beam members. By repeating this process of connecting two adjacent points of the joint or the top of the roof beam member with the beam material in the circumferential direction and center direction of the dome roof, the roof beam with the triangular roof structure can be connected to the dome roof installation space. A method of constructing a dome roof, which is characterized by the construction of a dome roof. 4. Claim 3, characterized in that the roof beam member and beam material are curved according to the curvature of the dome roof.
Construction method described in section.