JPH0583705B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention relates to a method of constructing a pop-up roof, a dome-shaped roof, a semi-cylindrical roof, etc.

《Prior Art》 For example, when constructing a projecting roof or a dome-shaped roof on a large-scale building such as a baseball field or similar stadium, or when constructing a semi-cylindrical roof on a swimming pool, etc. It was constructed by constructing large-scale shoring over the entire area, and then lifting and assembling the steel frame with a crane.

<<Problems to be solved by the invention>> Therefore, this type of construction method requires a large number of temporary supports, which requires a huge amount of materials, labor, and construction costs.
In addition, the preparatory work for construction was long and there was a lot of work to be done at heights, which led to problems such as the need for a large amount of fall protection and safety facilities.

This invention was made in view of the above problems, and aims to save labor and shorten the construction period, as well as improve quality and safety.

<<Means for Solving the Problems>> In order to achieve the above object, the present invention includes a step of rotatably attaching the eave side end of the roof structural material to an attachment part; A process of assembling the roof with the parts installed on the installation surface; a process of lifting the ridge side end of each roof and fixing it at a predetermined roof slope;

That is, according to the present invention, the roof can be completed by assembling the parts that will become the roof in advance at a position close to the ground, then pulling them up and fixing them.

<<Example>> Hereinafter, preferred embodiments of the present invention will be described in detail using the drawings.

1 to 3 show a first embodiment of the method of this invention.

In the figure, 1 is a ground of a stadium such as a baseball stadium, and 2 is a building built around the outer periphery of the ground 1. The building 2 is provided with multi-stage spectator seats 2a that are inclined in a step-like manner toward the ground 1 side, with the outer wall section being the top level. When constructing, for example, a pop-up roof on this building 2, as shown in an enlarged view in FIG. For example, a girder 4 is rotatably connected via a hinge pin 5. Then, as shown in Figure 1, each girder 4
are installed on the ground 1 side along the spectator seats 2a, connect the 4 girders, create a structure such as a truss set as necessary, and install a roof membrane on the top of the structure. This completes the roof Y.

On the other hand, a support 6 is temporarily installed at the base of the pivoting end of the girder 4, that is, at the eave side end, and the support 6 and the pivoting end of the girder 4 are connected by a tension member 7.

Next, when all the assembly work of the roof Y is completed, by rolling up the end of the tension member 7,
The girder 4 rotates about the hinge pin 5 and rises at a predetermined position toward the ground 1 as shown in FIG. Once the specified roof slope is reached, the girder 4
By fixing the ridge side end of the roof with some kind of support means, the pop-up roof Y is completed.

In addition, if the building 2 is linear and very long, or if the building 2 is circular or close to it, the construction section will be divided into sections for each girder 4, and the roof will be assembled for each section and raised all at once. You can do it like this.

If the building 2 is linear, the ridge sides of the adjacent girders 4 are rigidly connected after being raised, and both sides of the ridge sides are fixed by some means, or if the building is circular, For example, by rigidly connecting them, they can be held in a dome-shaped raised state.

Note that the pillars 6 may be removed after the roof Y is constructed, or may be left as they are for maintenance or support.

Next, FIG. 4 shows a second embodiment of the method of this invention. In this embodiment, a crane 10 is placed on the ground 1 as a method for hoisting the girder 4. The roof Y is then lifted up.

Incidentally, by using not only the crane 10 but also the lift-up and the above-mentioned supports, the lifting operation can be performed more reliably.

Furthermore, in each of the above embodiments, the application was applied to a case where the building has walls, but for example, in the case of a dome-shaped roof, a semi-cylindrical roof, or a large gassho-shaped roof, the eave side end of the roof may be in contact with the ground surface. . In this case, the eave-side end of the roof structural material is hinged to the ground, and the roof can be assembled and then raised while it is installed on the ground, which further simplifies the work.

<<Effects of the Invention>> As explained above in the embodiments, according to the method of the present invention, the roof construction and finishing processes can be carried out with the roof structural materials installed at a level close to the ground, which is superior to the conventional method. Compared to the case where the roof is constructed while raising the supporting structure materials, there is no need for support such as temporary supports, and only a small portion of the work scaffolding and fall protection are required, so the temporary construction work can be significantly reduced, and the height can be reduced. Labor-saving is possible because office work is also reduced.

According to the method of this invention, preparatory work such as temporary shoring is greatly reduced, and the roof work itself can be started quickly. Moreover, when constructing a large roof, the work area can be divided into blocks, and Since the roof can be built in parallel within the block,
Construction period can be shortened.

Furthermore, since the assembly work can be done while lying close to the ground, inspection after completion is easy, and there is less work at heights, which contributes to safety. can be achieved.

[Brief explanation of the drawing]

Figures 1 to 3 show a first embodiment of the method of this invention, with Figure 1 being a cross-sectional explanatory view showing the state in which the roof girders are being folded toward the audience seats, and Figure 2 being 1 is a view taken in the direction of arrow A in FIG. 1, FIG. 3 is an explanatory cross-sectional view showing a state in which the roof is raised, and FIG. 4 is an explanatory cross-sectional view showing a second embodiment of the method of the present invention. 4... Roof girder (roof structural material), 5... Hinge pin, 6... Support column, 7... Tension member, 10... Crane, Y... Roof.

Claims (1)

[Claims] 1. The step of rotatably attaching the eave side end of the roof structural material to the attachment part; The step of assembling the roof with the ridge end of the first roof structural material installed on the installation surface; A method for constructing a roof, comprising: lifting the ridge end of the roof and fixing it at a predetermined roof slope; 2. As a lifting method, a support post is temporarily installed on the rotation base end of the roof structural material, and a tension member for lifting is stretched between the ridge side end of the roof and the support support, and the roof is lifted by hoisting the tension member. 2. A method of constructing a roof according to claim 1, which comprises lifting the roof. 3. The roof construction method according to claim 1, characterized in that a crane or lift-up is used as the lifting method.