JP2000145003A - Constructing method for dome roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a constructing method for a dome roof capable of reducing cost and efficiently conducting construction in a short period. SOLUTION: For a dome roof, a dome center part 10 and a dome peripheral part 12 are separately composed, and the dome center part 10 and the dome peripheral part 12 are link-jointed at the ground level to be capable of bending at bend points 16. The dome center part and the dome peripheral part 12 are then lifted by cable wires 20 utilizing regular columns 14 installed at peripheral parts to be fixed and supported, thereby the dome roof is constructed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art In recent years, large space buildings such as baseball stadiums and stadiums having a dome roof have been installed in various places. One of the methods of constructing such a dome roof is Akira Tokuno
There is a dome construction method described in JP-A-58-33341.

In the dome construction method described in this publication, first, the center of the dome and the periphery of the dome are assembled near the ground, and the whole dome is gradually raised upward with the center of the dome and the periphery of the dome being hinged. When the dome roof is lifted and reaches a predetermined height, the hinge is fixed and joined to construct a dome roof.

[0004]

However, the dome construction method described in Japanese Patent Publication No. 58-33341 described above uses air pressure to lift the entire roof upward, and is made of, for example, a steel frame. It is not enough to support the lifted heavy dome roof as a whole,
Roof construction may not be possible.

On the other hand, there is a construction method in which a temporary scaffold or a temporary pillar is constructed in a dome without using air pressure, and a dome roof is lifted and formed with a winch, a cable wire, a crane, or the like. Since temporary pillars and scaffolds must be installed inside and outside the dome, there are problems such as an increase in cost and a longer construction period.

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem.
An object of the present invention is to provide a method of constructing a dome roof capable of reducing costs and efficiently performing construction in a short time.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a method for constructing a dome roof having a spherical shape, comprising separately assembling a dome roof into a dome central portion and a dome peripheral portion, and at the ground level. After the central portion and the dome peripheral portion are flexibly joined at a predetermined location, the central portion of the dome and the peripheral portion of the dome are lifted upward and fixed by supporting means using a permanent pillar installed at the peripheral portion of the building. It is characterized by support.

[0008] Further, as a support means for the central portion of the dome and the peripheral portion of the dome, the main column is extended around the fulcrum and one end is attached to a bending point connecting the central portion of the dome and the peripheral portion of the dome, and Is characterized by using a wire cable attached to a hoist.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIGS. 1 and 2 are schematic front views showing steps of a method for constructing a dome roof according to an embodiment of the present invention.
FIG. 3 is a schematic plan view showing the dome roof after completion.

First, the configuration will be described. The dome roof shown in FIG. 1 mainly includes a dome central portion 10, a dome peripheral portion 12, and the like. The dome central portion 10 and the dome peripheral portion 12 are both steel frame domes formed by combining steel materials. As shown in FIG. 3, the dome central portion 10 is formed in a circular shape in plan view. On the other hand, the dome periphery 12
Is formed in a donut shape, and a dome central portion 10 is linked to a central circular space as described later.

Around the dome peripheral portion 12, eight main pillars 14 (only two pillars are shown in FIG. 1) are erected at predetermined intervals along an arc. The main pillar 14 is not a temporary one, but becomes a part of the building after construction.

The dome central portion 10 and the dome peripheral portion 12 are linked to each other at a plurality of bending points 16 by linking their structural members. The steel material located substantially at the center of the dome peripheral portion 12 is bent and linked at a bending point 18.

At each bending point 16, one end 20a of a wire cable 20 is attached. The one end 20a is slidably guided on a pulley (not shown) attached to the upper end of the main pole 14, and the other end 20b is extended. Is rotatably connected to a winch 22 which is a hoist. The lower end of the outer periphery of the dome peripheral portion 12 is rotatably connected to the ground surface by a rotation fulcrum 24. In the figure, the rotation fulcrum 24 is connected to the ground surface, but may be attached to an intermediate portion of the main pillar 14.

Next, a method of constructing the dome roof constructed as described above will be described.

First, as shown in FIG.
0 and the dome peripheral portion 12 are linked at a bending point 16 at a stage at the ground level, and in this state, one end 20a of the cable wire 20 is connected to the bending point 16 and, at the same time, a main pillar standing upright around the circumference. The other end 20 through 14
b is attached to the winch 22 so that it can be wound up. Also,
The rotation fulcrum 24 of the dome peripheral part 12 is fixed to the ground surface
4 to connect the entire roof component.

Then, as shown in FIG. 1, each cable wire 20 is gradually wound up by a winch 22, and the dome central portion 10 is pulled up in the direction of arrow A. Then, as shown in FIG. 2, the entire dome central portion 10 is lifted upward, and the bending points 16 and 1 where the links are joined are formed.
8 extends to a predetermined shape and is connected to the dome peripheral portion 12 to form a semicircular dome roof.

Preferably, while maintaining this state, the bending point 16 is fixed to fix the dome central portion 10 and the dome peripheral portion 12, and at the same time, the bending point 18 and the rotation fulcrum 24 are fixed. This fixing operation is performed by inserting a pin (not shown) or a wedge (not shown) into a hole (not shown) provided in each member near each bending point. Then
Connect the cable wire 20 to the other end 2 through the main pillar 14.
The dome roof is completed by fixing Ob to the ground surface with a pile or the like and supporting the entire dome roof. However, it is necessary to separately perform finishing work for the interior and exterior of the building as a whole.

Although the winch 22 can be removed,
It may be left as it is or installed at any time. Then, if necessary, the end portion 20b of the cable wire 20
Is released and connected to the winch 22, and when the bending points 16, 18 and the pivot 24 are fixed, the fixed state is released and the shape of the dome roof is changed by the winch operation. It becomes possible.
On the other hand, the cable wire 20 is fixed at the upper end of the main pole 14 under the condition that the main pole 14 can sufficiently cope with the overturning force. The pulleys and winches 22 at the upper end of the main pillar 14 may be removed without cutting / removing or cutting the cable wires 20.

As described above, according to the dome roof construction method of the present embodiment, in order to raise the dome central portion 10 and the dome peripheral portion 12 constituting the dome roof, the main pillar, which is a part of the building, is raised. Because we use 14,
There is no need to build large temporary pillars and scaffolds inside and outside the dome. For this reason, construction materials can be reduced, and construction costs can be reduced. In addition, the construction period required for building the dome roof can be shortened,
Efficient dome roof construction is possible.

In this embodiment, the dome roof is lifted by using cable wires as the dome roof support means. However, the present invention is not limited to this. The dome roof can be lifted, and the entire dome roof is permanently installed. Any support means may be used as long as it can be fixed using the column 14.

[0022]

As described in detail above, according to the method of constructing a dome roof of the present invention, it is not necessary to construct scaffolds or temporary pillars, so that the construction period can be shortened and the construction cost can be reduced. Can be.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing each step of a dome roof construction method according to an embodiment of the present invention.

FIG. 2 is a schematic front view showing each step of a dome roof construction method according to an embodiment of the present invention.

FIG. 3 is a schematic plan view showing a dome roof constructed by the dome roof construction method of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Dome center part 12 Dome peripheral part 14 Main pillar 16 Bending point 18 Bending point 20 Cable wire 20a One end 20b Other end 22 Winch 24 Rotation fulcrum

Claims (2)

[Claims] 1. A method for constructing a dome roof having a spherical shape, comprising separately assembling a dome roof into a dome central portion and a dome peripheral portion, and combining the dome central portion and the dome peripheral portion at a ground level. The dome, wherein the dome center portion and the dome peripheral portion are lifted up and fixedly supported by supporting means using a main pillar installed at a peripheral portion of the building after being flexibly joined at a predetermined location. How to build a roof. 2. The dome center portion and the dome peripheral portion are supported by the main pillar as a fulcrum, and one end is attached to a bending point connecting the dome central portion and the dome peripheral portion, and the other end is provided. The method according to claim 1, wherein a wire cable attached to the hoist is used.