JPH1162004A - How to build a dome - Google Patents

Abstract

(57) [Problem] To provide a method for constructing a dome with high working efficiency by a simple method. A rectangular parallelepiped block having curved surfaces is provided with cutouts at corners opposite to each other on a diagonal line, and a length of a lower side is longer than a length of an upper side, and a slope is provided in a thickness direction. It is a method of constructing a dome, characterized by joining by any method and closing the top with cast-in-place concrete, and, when approaching the top of the dome, changing to a substantially rectangular parallelepiped block having a small curved surface, A method for constructing a dome, comprising closing a top portion with another precast block.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a dome construction method for constructing a spherical dome by combining precast blocks.

[0002]

2. Description of the Related Art A conventional technique will be described with reference to FIGS. FIG. 6 is a side view of a dome structure constructed by stacking ice blocks using eskimos since ancient times. FIG. 7 is an exploded view. Since each block 1 is divided horizontally, it is structurally weak against horizontal force. Also, since one block is generally a rectangular parallelepiped, when assembling one ring horizontally, it is difficult to insert the last block, so adjust the dimensions of that block or prepare a new large block and assemble it to make one ring Close the minute. Similar modifications must be made when assembling the upper tier.

[0003] If the structure becomes large-scale and several places are assembled at the same time, the above-mentioned problems occur simultaneously, resulting in inefficient work.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a method of constructing a dome having a high working efficiency by a simple method.

[0005]

Means for Solving the Problems A notch is provided at each corner of a substantially rectangular parallelepiped block having a curved surface on a diagonal line, the length of the lower side is made longer than the length of the upper side, and a gradient is formed in the thickness direction. A method of constructing a dome, characterized in that the attached rectangular parallelepiped blocks are joined by an arbitrary method, and the top is closed with cast-in-place concrete, and when approaching the top of the dome, a substantially rectangular parallelepiped having a small curved surface It is a method of constructing a dome, characterized by changing to a block and closing the top with another precast block.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

<A> Overall Configuration FIG. 1 is a side view of a dome construction method according to the present invention.
When constructing the foundation structure on the ground G, the first-stage block 1 serving as the main structure of the dome is installed in advance. The block 1 is a substantially rectangular parallelepiped block having a curved surface, and a notch is provided at each of the diagonally opposite corners, and the adjacent blocks 1 and 1 are assembled using the notch as a part of a joint surface. Therefore, it takes a spiral shape toward the upper stage. The upper, lower, left and right blocks 1 may be joined by any conventional method.
That is, an arbitrary method such as bolt connection of segment pieces performed in shield construction or mounting of a plate on the end surface of the block 1 and welding may be used. The material of the block 1 may be any material such as concrete, steel, glass, etc., according to the purpose of use of the structure.

<B> General Block FIG. 2 is a perspective view of a general block 1 used in the present invention. The overall shape of the block 1 is a substantially rectangular parallelepiped having a horizontally long curved surface.
It is shorter and each side is sloped in the thickness direction. The notch 3 is provided at each of two opposing corners on one diagonal line of the block 1. Notch 3
Are cut out in a quarter length of each side.

<C> Deformation block When approaching the top of the dome, it is changed to a substantially rectangular parallelepiped block having a small curved surface. FIG. 3 is a perspective view of the modified block 11 used for one round of the dome when approaching the top of the dome. The horizontal cutout 31 of the deformed block 11 is one half of the side length c, and the other horizontal cutout 32 is one quarter of the side length d. The vertical direction of each of the notches 31 and 32 is set to a quarter of the side length d. In this deformed block 11 as well, the upper side c is shorter than the lower side d, as in the general block, and each side has a gradient in the thickness direction.

After the deformed block 11 has made one round of the dome, another deformed block 12 is used.
(FIG. 4) In this modified block 12, the cutout length in the horizontal direction is set to one half of the upper side e and the lower side both set to the side length f, and the cutout length in the vertical direction is set to one quarter of the side length.

[0011]

The method of constructing the dome will be described below.

<A> Construction of Substructure In FIG. 1, a substructure 2 is constructed on the ground G. At the time of construction, the first-stage blocks 1 are previously set on the substructure 2 so that four adjacent blocks are at the same height position. (FIG. 5) FIG. 5 is a partial development view of FIG. 1. Since the blocks 1 and 1 are assembled with the cutout 3 as a part of the joint surface, the blocks 1 and 1 assume a spiral shape toward the upper stage.

<B> Arrangement and Joining of Blocks In FIG.
, The block 1 can be arranged and joined from any location. Therefore, work can be performed simultaneously from several places at the same time. Block 1,
The joining between the members 1 may be performed by any conventional method. That is, any method may be adopted, such as bolt connection of segment pieces performed in shield construction, or mounting of a plate on the end face of the block 1 and welding.
Each of the blocks 1 and 1 is assembled in a spiral shape with the cutout portion 3 as a part of the joining surface, so that it is a rigid structure without weakness against horizontal force.

<C> Arrangement / joining of the deformed block When the arrangement / joining of the block 1 approaches the top of the dome,
Change to a substantially rectangular parallelepiped block having a small curved surface. (FIGS. 3 and 4) First, the deformation block 11 (FIG. 3) is arranged around the dome.
After joining, another deformed block 12 (FIG. 4) is assembled near the top of the dome. Note that this deformed block 1
The use of 1, 12 is not always necessary, and may not be necessary by changing the dome shape or the method of finishing the top.

<D> Top Finishing The dome top may be finished by any other method, such as closing with another precast block (not shown) or closing with cast-in-place concrete.

[0016]

Since the present invention has been described above,
The following effects can be obtained. <B> Since the blocks are assembled in a spiral shape, work can be started simultaneously at a plurality of locations, thereby shortening the construction period. <B> Because both the horizontal and vertical axes are staggered,
High rigidity of the structure. <C> When the block is fitted, the two sides are always assembled without being closed on both sides, so that the assembly is easy. <D> Since the same blocks are assembled, work can be performed without congestion. <E> Since the blocks are manufactured at the factory, the construction period can be shortened.

[Brief description of the drawings]

FIG. 1 is a side view of a dome construction method according to the present invention.

FIG. 2 is a perspective view of a general block.

FIG. 3 is a perspective view of a deformation block.

FIG. 4 is a perspective view of still another modified block.

FIG. 5 is a partial development view of FIG. 1;

FIG. 6 is a side view illustrating a conventional dome structure.

FIG. 7 is a development view of FIG. 6;

Claims (2)

[Claims] The present invention relates to a method of constructing a spherical dome, wherein cutouts are provided at corners of diagonal lines of a substantially rectangular parallelepiped block having a curved surface, and the length of the lower side is longer than the length of the upper side. A method for constructing a dome, comprising joining together approximately rectangular parallelepiped blocks having a gradient in a thickness direction by an arbitrary method, and closing a top portion with cast-in-place concrete. 2. The method for constructing a dome according to claim 1, wherein when approaching the top of the dome, the dome is changed to a substantially rectangular parallelepiped block having a small curved surface, and the top is closed with another precast block. How to build a dome.