JPH1122012A - How to build a roof frame - Google Patents

Abstract

(57) [Problem] To provide a method of constructing a roof frame 1 which does not require a high support 5 and is advantageous in terms of construction period, cost and workability even if the roof frame 1 has a wide span. Aim. A roof frame is divided into an outer roof part and an inner roof part. The outer peripheral roof portion 2 is assembled on a support 5 installed inside the roof support structure 4. Next, the inner roof part 3 is assembled on the ground surface of the space surrounded by the outer peripheral roof part 2. The outer roof part 2 is used as a reaction body, and the inner roof part 3 is used.
And the roof frame 1 is integrated. The roof frame 1 is constructed by pulling up the roof support structure 4 around the roof support structure 4 as a reaction force body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for constructing a roof frame.

[0002]

2. Description of the Related Art As one of construction methods of a roof, there is a construction method in which a roof frame b is pulled up and integrated with a roof support structure a as shown in FIGS. This construction method has a feature that the roof frame b is assembled on the ground surface and is lifted up to the upper part of the support structure a at a time, so that the construction period can be shortened and the work at high places can be reduced.

[0003]

However, the above-mentioned conventional method of constructing a roof frame has the following problems. <A> When assembling the roof frame b on the ground surface, the assembling is performed while being supported by the shoring c. Therefore, the roof frame b
As the span becomes larger, the height of the central portion becomes higher, the number of the supporters c that support it from below increases, and the height at which the supports are installed needs to be considerably high. <B> For this reason, even with the precious and innovative construction method, if the span is widened, it cannot be said that the construction period, cost, and workability are advantageous.

The present invention has been made to solve the above-mentioned conventional problems, and does not require a high support work even for a roof frame having a wide span, and is advantageous in terms of work period, cost, and workability. And a method of constructing a roof frame.

[0005]

In order to achieve the above object, a method of constructing a roof frame according to the present invention is directed to a method of lifting a roof frame above a roof support structure and integrating the same with the roof frame. Is divided into an outer roof part and a plurality of inner roof parts, and the outermost outer roof part among the split roofs is assembled on a support installed inside the roof support structure, and then surrounded by the outer roof part On the ground surface of the space, the inner roof was assembled, the outer roof was used as a reaction body, and the inner roof was pulled up and integrated to form a roof frame.
It features a method of constructing a roof frame in which a surrounding roof support structure is lifted up to the upper part as a reaction body and constructed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for constructing a roof frame according to the present invention will be described below with reference to the drawings.

<A> Roof support structure. As described above, the present invention is a construction method in which the roof frame 1 is pulled up to the upper portion of the roof support structure using a jack or the like and integrated. Therefore, first, a roof support structure constituting the periphery of the roof frame 1 is installed by a known method.

<B> Division of the roof frame 1. In that case, in the construction method of the present invention, the roof frame 1 is divided into a plurality. As the shape of the roof, the shape of the conventional roof frame 1 such as a hemisphere, a pyramid, and a hemi-cylindrical can be widely used. These roofs are divided into an outer peripheral roof portion 2 and an inner roof portion 3. For example, in the case of a hemispherical shape, FIGS.
As shown in (1), it is divided into a peripheral annular outer roof portion 2 and a hemispherical inner roof portion 3 having a small center diameter. The central hemispherical inner roof 3 can be further divided into a surrounding annular body and a hemispherical shape having a small central diameter. If it is a semi-cylindrical shape, as shown in FIGS. 6 and 7, it is divided into a peripheral arc-shaped outer peripheral roof portion 2 and a central semi-circular inner roof portion 3. The central semi-cylindrical inner roof 3 can be further divided into an arc shape and a semi-cylindrical shape.

<C> Assembly of the outer roof. In the internal space surrounded by the surrounding roof support structure 4, first, the outer peripheral roof portion 2 described above is assembled. This corresponds to the outermost part of the divided roof frame 1. The outer peripheral roof portion 2 includes a support 5 installed inside the roof support structure 4.
Assemble on If the periphery of the lower end of the outer peripheral roof part 2 is surrounded by the constrained annular body 6 as shown in FIG. 5, it is possible to prevent the force spreading outward and maintain the shape.

<D> Assembly of the inner roof 3 After or simultaneously with the assembly of the outer roof, the inner roof 3 is assembled on the ground surface of the space surrounded by the outer roof 2. Since this is not assembled as an extension of the outer peripheral roof portion 2 but is assembled on the ground surface, a high support 5 is not required. When the span is large, the inner roof portion 3 needs to be restrained so that its outer periphery does not expand. For this purpose, for example, the periphery of the lower end of the inner roof part 3 is restricted by a constrained annular body (FIG. 5).
If it surrounds in 6), expansion can be prevented. Alternatively, a similar effect can be obtained by connecting the lower ends of the inner roof portions 3 with tension members (7 in FIG. 7).

<E> Pull up the inner roof 3. The inner roof 3 assembled in this manner is pulled up using the assembled outer roof 2 as a reaction body. For this pulling, a conventionally known technique, such as pulling up a steel wire in a bug-like shape with a center hole jack 8 attached to the tip of the outer peripheral roof portion 2, can be used. The raised inner roof portion 3 is connected to and integrated with the existing outer peripheral roof portion 2 in an extended state to form the roof frame 1.

<F> Pull up the roof frame 1. The roof frame 1 that has been assembled and integrated in this way is finally connected to the surrounding roof support structure 4 by a jack 8 as a reaction force body.
Pull up to the upper part and fix it.
Thus, the roof frame 1 is completed.

<G> Division of the inner roof portion 3. When the inner roof part 3 assembled inside the outer peripheral roof part 2 is further divided and configured, similarly to the above-described process, the inner roof part 3 is sequentially lifted by the jack 8 and attached to the inside, and finally the surrounding part A full-sized roof frame 1 is built inside the support structure and then lifted.

[0014]

The construction of the roof frame 1 according to the present invention is as described above, and the following effects can be obtained. <B> In the conventional method, the height of the shoring work had to be adjusted to the height of the highest part of the roof frame 1 assembled on the ground surface. However, according to the method of the present invention, it is possible to construct only the support 5 that can support even the outer peripheral portion of the divided roof frame 1. Therefore, even for a building having a wide span, it is sufficient to prepare a low shoring 5, so that material costs and assembly and disassembly costs can be reduced. <B> The divided roof frame 1 can perform simultaneous operations such as assembling the outer peripheral portion, the inner portion, and the support structure 4 at the same time. Therefore, it is possible to carry out concentrated work and concentrated arrangement of workers, thereby shortening the construction period. <C> Since the roof frame 1 can be divided into a plurality of parts and assembled in a low state, work at a high place is not performed. Therefore, work is safe and workability can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view of the steps of a method for constructing a roof frame according to the present invention.

FIG. 2 is an explanatory view of the steps of the method for constructing a roof frame according to the present invention.

FIG. 3 is an explanatory view of the steps of the method for constructing a roof frame according to the present invention.

FIG. 4 is an explanatory view of an embodiment of a method for constructing a hemispherical roof frame.

FIG. 5 is an explanatory view of an embodiment of a method for constructing a hemispherical roof frame.

FIG. 6 is an explanatory view of an embodiment of a method for constructing a semi-cylindrical roof frame.

FIG. 7 is an explanatory view of an embodiment of a method for constructing a semi-cylindrical roof frame.

FIG. 8 is an explanatory view of an embodiment of a conventional method of constructing a roof frame.

FIG. 9 is an explanatory diagram of an embodiment of a conventional roof frame construction method.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Akio Iwai 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Corporation

Claims (4)

[Claims] 1. A method of lifting and integrating a roof frame on an upper portion of a roof support structure, wherein the roof frame is divided into an outer peripheral roof portion and a plurality of inner roof portions, and the outermost outer peripheral roof among the divided roofs is provided. Is assembled on the support installed inside the roof support structure, and furthermore, the inner roof is assembled on the ground surface of the space surrounded by the outer roof, The roof frame is constructed by pulling it up and integrating it to form a roof frame, and pulling this roof frame up to the roof support structure as a reaction force body. 2. The method for constructing a roof frame according to claim 1, wherein the inner roof portion assembled inside the outer peripheral roof portion is further divided and configured. 3. The method for constructing a roof frame according to claim 1, wherein the periphery of the lower end of the inner roof part being assembled is surrounded by an annular body to prevent expansion of the inner roof part. 4. The method for constructing a roof frame according to claim 1, wherein the lower portion of the inner roof portion being assembled is connected by a tension member to prevent expansion of the inner roof portion.