JP2002038718A - Building with lifting-lowering stair and building lifting- lowering stair and its constructing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building with a lifting-lowering stair and its constructing method, in which the structure of the lifting-lowering stair is simplified and a construction schedule can be shortened. SOLUTION: In the building with the lifting-lowering stair in which the lifting- lowering stair for enabling comings and goings on a ground section and a building roof surface is installed on the side, a building body and the building lifting- lowering stair with the first support, the second support and a stair structure are mounted, the first support is used as the lower structure of the first tower crane used for constructing the building body, the second support is used as the lower structure of the second tower crane employed for constructing the building body, and the stair structure is stretched and supported between the first support and the second support.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building with a staircase, a staircase provided on the building, and a construction method thereof. More specifically, the structure of the building elevating stairs provided on the side of the building main body so as to allow traffic between the ground and the roof of the building, the structure of the building with the elevating stairs, and the construction method About.

[0002]

2. Description of the Related Art Generally, a building provided on the ground has a staircase. The workers can move between the ground and the roof of the building by the stairs. As an example of a building, tanks for storing liquefied gas, oil, water, and the like include an above-ground tank provided above the ground and an underground tank provided below the ground. Then, when constructing the above-ground tank, an elevating staircase is constructed beside it. Workers move safely above and below the tank roof by the stairs, and operate, maintain, and manage the tank.

An example of the structure of a conventional building with a staircase and an example of a construction method thereof will be described with reference to the structure of a liquefied natural gas tank and an example of the construction method. FIG. 4 is a front view of a conventional tank with a lifting staircase. FIG. 5 is a side view thereof. The tank for liquefied natural gas comprises a tank body 30, a staircase 60, a roof staircase 40, and other auxiliaries 41. The tank body 30 has a base portion 31, side portions 32, and a roof portion 33. The base 31 is a substantially circular concrete layer having a predetermined height. The appearance of the side part 32 has a cylindrical shape. The exterior of the roof part 33 has a substantially mirror-plate shape convex upward. The elevating staircase 60 has a column 61, a landing 62, and a stair structure 63. The column 61 has a truss structure in which columns are arranged at four corners, and a lower portion thereof is installed on the foundation 31. The height of the column 61 is substantially the same as the height of the side portion 32. The landing 62 divides the strut 61 into a plurality of steps,
Supported by. The stair structure 63 has a stair floor and a handrail, and is bridged between the landings 62 vertically. The roof stair 40 has a stair floor and a handrail, is provided on the upper surface of the roof, and connects the landing on the upper surface of the elevating stairs and the top platform in the center of the roof.

Next, a construction procedure of the liquefied natural gas tank will be described. FIG. 6 is a conceptual diagram showing a procedure of a conventional construction method. (Step A) A tower crane 50 is provided around a place where the tank 10 is to be constructed. The tower crane 50 includes a first tower crane 51 and a second tower crane 52. The first tower crane 51 is a fixed tower crane. The second tower crane 52 is a mobile tower crane having a crane rail 53 provided so as to surround a site where a tank is to be constructed. (Step B) The tank body 30 is constructed using the tower crane 50. Using the fixed tower crane 51 and the movable tower crane 52, the partial building of the tank body 30 is moved and installed at a predetermined position. When necessary, the partial buildings are assembled by welding to construct the tank body. (Step C) When the construction of the tank body 30 is completed, the tower crane 50 is removed. The fixed tower crane 51 and the mobile tower crane 52 are removed, and the crane rail 53 is further removed. (Step D) The elevating stairs 60 are installed, the roof stairs 40 and other auxiliary devices 41 are installed, and the tank is completed.

[0005]

As described above, in the construction of a building such as a tank, a tower crane is indispensable for the construction of the building body. Furthermore, the installation location of the tower crane and the installation location of the elevating stairs often overlap. Therefore, unless the work by the tower crane is completed and the tower crane is removed, the elevating stairs cannot be installed on the side of the building. As described above, in the conventional structure of a building with a staircase and its construction method, since the construction process of the staircase is a post-process of the construction process of the building body, it is difficult to shorten the construction process. was there.

The present invention has been devised in view of the above-described problems. Instead of the structure of a conventional building with a staircase and its construction method, the structure of the staircase is simple and the construction process is shortened. An object of the present invention is to provide a structure of a building with a lift staircase and a method of constructing the structure.

[0007]

According to the present invention, there is provided a building with a lift staircase provided with a lift staircase provided on a side of a building body so as to be able to move between the ground and the roof of the building according to the present invention. The method of constructing a building includes a building body building step of building a building body using a tower crane, and an elevating stair building step of building an elevating staircase having a lower structure of the tower crane as a part of the structure. It was prepared.

[0008] According to the configuration of the present invention, the building main body can be constructed using a tower crane in the building main body construction step. Further, in the elevating stair building process, the elevating stairs having the lower structure of the tower crane as a part of the structure can be constructed.

Still preferably, in a method of constructing a building with a staircase according to the present invention, the building main body building step uses a first tower crane and a second tower crane as a tower crane; However, a stair structure is bridged between the first lower structure of the first tower crane and the second lower structure of the second tower crane to construct the elevating stairs. According to the configuration of the present invention, the building main body can be constructed using the first tower crane and the second tower crane in the building main body construction step. In the elevating stair building process, the elevating stair can be constructed by bridging the stair structure between the first lower structure of the first tower crane and the second lower structure of the second tower crane.

Further, the method for constructing a building elevating staircase provided on the side of a building main body so as to be able to move between the ground and the roof of the building according to the present invention is used for constructing a tank main body. An upper structure removing step of removing the upper structure from the tower crane while leaving the lower structure, and a stair structure installing step of providing a stair structure in the lower structure are provided.

According to the configuration of the present invention, in the upper structure removing step, the upper structure can be removed from the tower crane used for constructing the tank body while leaving the lower structure. further,
In the staircase structure setting step, a staircase structure can be provided in the lower structure.

More preferably, in the construction method of a building elevating staircase according to the present invention, the tower crane has a first tower crane and a second tower crane, and the superstructure removing step is performed by the first tower crane. A first upper structure removing step of removing the first upper structure while leaving the first lower structure, and a second upper part removing the second upper structure leaving the second lower structure from the second tower crane And a step of installing a staircase structure, wherein the step of installing a staircase structure is a step of installing a staircase structure by bridging the staircase structure between the first lower structure and the second lower structure. According to the configuration of the present invention, in the first upper structure removing step, the first upper structure can be removed from the first tower crane while leaving the first lower structure. In the second superstructure removing step, the second upper structure can be removed from the second tower crane while leaving the second lower structure. In the stair structure installation step, the stair structure can be provided by bridging the stair structure between the first lower structure and the second lower structure.

Still further, according to the present invention, there is provided a building with a lifting stair provided with a lifting stair on a side thereof for allowing the ground and the roof of the building to move between the ground, a building main body, a column and a stair structure. And a supporting column is a lower structure of a tower crane used for constructing the building body, and the stair structure is supported by the supporting column. According to the configuration of the present invention, the building with the lifting stairs includes the building body and the building lifting stairs. The building elevating staircase has a column and a staircase structure. The column, which is the lower structure of the tower crane used for building the building body, can support the stair structure.

[0014] More preferably, in the building with the elevating stairs according to the present invention, the strut has a first strut and a second strut, and the first strut is a first strut used for constructing a building main body. Of the tower crane, the second support of which is
A lower structure of a second tower crane used for constructing a building body, wherein the staircase structure is bridged and supported between the first support and the second support. According to the configuration of the present invention, the building with the lifting stairs includes the building body and the building lifting stairs. The building elevating stair has a first support, a second support, and a stair structure. The first support, which is the lower structure of the first tower crane used to construct the building body, and the second support, which is the lower structure of the second tower crane used to build the building body, were suspended between them. We can support the staircase structure.

Still further, the building elevating staircase provided on the side of the building body for enabling the vehicle to pass between the ground and the roof of the building according to the present invention comprises a column and a staircase structure. However, the lower structure of the tower crane used to construct the building main body, and the stair structure is supported by the support. According to the configuration of the present invention, the tank elevating staircase includes the column and the staircase structure. A column, which is a lower structure of a tower crane used for constructing the building body, can support the stair structure.

Still preferably, in a building elevating staircase according to the present invention, the column has a first column and a second column, and the first column of the first tower crane used for constructing the building body. A lower structure, wherein the second support is a lower structure of a second tower crane used for building the building body, and the stair structure is bridged between the first support and the second support. Was supported. According to the configuration of the present invention, the tank elevating staircase includes the first strut, the second strut, and the staircase structure. The first support, which is the lower structure of the first tower crane used for building the building body, and the second support, which is the lower structure of the second tower crane used for building the building body, are bridged therebetween. Can support the staircase structure.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings, taking a low-temperature tank for storing liquefied natural gas as a building as an example. In each of the drawings, common portions are denoted by the same reference numerals, and redundant description will be omitted.

An outline of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of an embodiment of the present invention.

Building 10 (hereinafter referred to as "tank")
Is composed of a building body 30 (hereinafter, referred to as “tank body”), a lifting staircase 20, a roof staircase 40, and other auxiliary devices 41. The tank body 30 has a base portion 31, side portions 32, and a roof portion 33. The base 31 is a substantially circular concrete layer having a predetermined height. The appearance of the side part 32 has a cylindrical shape. The exterior of the roof part 33 has a substantially mirror-plate shape convex upward. The ascending and descending stairs 20 include a first support 21, a second support 22, a landing 24, and a stair structure 23. The first support 21 is a first lower structure 51 a of a fixed tower crane 51 used for building the tank body 30.
It is. The second support 22 is a second lower structure 52 a of the mobile tower crane 52 used for building the tank body 30.
It is. The landing 24 is a plurality of horizontal floors, and is bridged between the first support 21 and the second support 22 at predetermined intervals. The stair structure 23 has a stair floor and a handrail, is disposed between the landings 24, and is bridged between the first strut 21 and the second strut 22. The roof stair 40 has a stair floor and a handrail, is provided on the upper surface of the roof, and connects the landing on the upper surface of the elevating stairs and the top platform in the center of the roof.

Next, the procedure for constructing this tank will be described.
FIG. 2 is a side view of the tower crane. FIG. 3 is a procedure diagram of the embodiment of the present invention. (Step A) A tower crane 50 is provided around a place where the tank 10 is to be constructed. The tower crane 50 includes a first tower crane 51 and a second tower crane 52. The first tower crane 51 is a fixed tower crane. The second tower crane 52 is a mobile tower crane having a crane rail 53 provided so as to surround the planned construction site of the tank. (Step B) The tank body 30 is constructed using the tower crane 50. By using the fixed tower crane 51 and the movable tower crane 52, the partial building of the tank body 30 is moved and installed at a predetermined position. If necessary, the partial building is assembled by welding to construct the tank body 30. (Step C) When the construction of the tank body 30 is completed, the movable tower crane 52 is moved and fixed so as to line up beside the fixed tower crane 51. Fixed tower crane 51
From the first upper structure 51b while leaving the first lower structure 51a.
To remove. The second upper structure 52b is removed from the mobile tower crane 51 while leaving the second lower structure 52a. At this time, the height of the first lower structure 51a and the second lower structure 52a
Is approximately the same as the height of the side of the roof of the tank body 30. (D-step) The first lower structure 51a is used as the first column 21,
The second lower structure 52a is referred to as a second support 22. First column 2
A stair structure 23 and a landing 24 are bridged between the first and second columns 22. Further, the roof stairs 40 and other auxiliary devices 41 are installed, and the tank 10 is completed.

If the structure of the tank with the lifting stairs of the above-described embodiment is adopted, the lower structure 51a of the fixed tower crane 51 used for the construction of the tank body 30 can be diverted to the first support 21 of the lifting stairs 20. The lower structure 52a of the mobile tower crane 52 used for building the main body is moved up and down stairs 2
Since the tank 10 with the ascending and descending stairs can be easily constructed since it can be diverted to the second support column 22 of zero. In addition, if the construction method of the tank with the lifting stairs of the embodiment is adopted, the lower structure 51a of the fixed tower crane 51 used for the construction of the tank body 30 can be used for the first support 21 of the lifting stairs 20, and the tank body 30 Since the lower structure 52a of the mobile tower crane 52 used for the construction of the elevator can be used for the second support 21 of the elevator stairs 20, the work time for constructing the support of the elevator stairs 20 can be omitted.

The present invention is not limited to the embodiments described above, and various changes can be made without departing from the gist of the invention. In the embodiment, the fixed tower crane was used as the first support, and the movable tower crane was used as the second support.However, the invention is not limited thereto. Is also good. Also, after removing the superstructure of the tower crane,
Although the steps have been described in the procedure of bridging the stair structure to the support, the order is not limited to this order, and the superstructure of the tower crane may be removed after bridging the stair structure to the support.

[0022]

As described above, the construction method of a building with a staircase according to the present invention has the following effects depending on its configuration. In the building body building process, the building body can be built using a tower crane.
Since the lower structure of the tower crane can be constructed as a part of the structure, the lower structure of the tower crane can be used as the support of the lift stairs. Construction process can be omitted. Furthermore, in the building body building process, the building body can be built using the first tower crane and the second tower crane, and in the elevating stair building process, the first lower structure of the first tower crane and Since the stairs can be constructed by bridging the stairs between the second lower structure of the second tower crane and the elevating stairs, the construction process of the building with the elevating stairs can be further shortened. Further, the construction method of the building elevating staircase of the present invention has the following effects depending on the configuration. In the superstructure removal process, the upper structure can be removed from the tower crane used to construct the tank body, leaving the lower structure, and in the staircase installation process, the lower structure can be provided with a staircase structure. Of the steps for constructing the stairs, the steps for constructing the columns of the elevating stairs can be omitted. Furthermore, in the first superstructure removal step, the first superstructure can be removed from the first tower crane while leaving the first substructure, and in the second superstructure removal step, the second superstructure can be removed from the second tower crane. The second superstructure is removed leaving the substructure. In the stair structure installation step, the stair structure can be provided by bridging the stair structure between the first lower structure and the second lower structure, so that the building step of the building elevating stairs can be further shortened. Further, the structure with the ascending and descending stairs of the present invention has the following effects depending on the configuration. The building with a lifting staircase includes a building body and a building lifting staircase, and the building lifting staircase has a strut and a staircase structure, and is a lower structure of a tower crane used for building the building body. Since the pillar can support the stair structure, a structure with a simple ascending and descending stair can be provided. Further, the building with a lifting staircase includes a building body and a building lifting staircase, and the building lifting staircase has a first support, a second support, and a staircase structure, and the building body includes The staircase structure in which the first support, which is the lower structure of the first tower crane used for construction, and the second support, which is the lower structure of the second tower crane used for building the building body, are suspended between them Can be provided, so that it is possible to provide a building with a more elevating staircase having a simpler structure. Further, the building elevating staircase of the present invention has the following effects depending on its configuration. The tank elevating stairs are provided with a support and a stair structure, and since the support, which is the lower structure of the tower crane used to construct the building main body, can support the stair structure, it is possible to provide a simple structure of the building lift stairs. . Further, the tank elevating stairs are provided with a first column, a second column, and a stair structure, and are used to construct a first column and a building body, which are substructures of the first tower crane used to construct the building body. Since the second column, which is the lower structure of the second tower crane used, can support the staircase structure bridged therebetween, it is possible to provide a simpler structure ascending and descending staircase. Therefore, it is possible to provide the structure of the building with the stairs, the structure of the building stairs, and the construction method thereof, in which the stairs can be easily installed and the installation time is short.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a partial view of an embodiment of the present invention.

FIG. 3 is a work procedure diagram of the embodiment of the present invention.

FIG. 4 is a conventional front view.

FIG. 5 is a conventional side view.

FIG. 6 is a conventional work procedure diagram.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Building (tank) 20 Elevating stairs 21 First support 22 Second support 23 Stair structure 24 Landing 30 Building main body (Tank main body) 31 Base 32 Side 33 Roof 40 Roof stair 41 Auxiliary device 50 Tower crane 51 No. One tower crane (fixed tower crane) 51a Lower structure 51b Upper structure 52 Second tower crane (mobile tower crane) 52a Lower structure 52b Upper structure 53 Crane rail 60 Elevating stair 61 Strut 62 Landing 63 Stair structure

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshiro Mizoguchi 3-2-1-16 Toyoshu, Koto-ku, Tokyo Ishikawajima-Harima Heavy Industries Co., Ltd. Tokyo Engineering Center (72) Inventor Satoru Namo 2-16, Ishikawajima-Harima Heavy Industries, Ltd. Tokyo Engineering Center (72) Inventor Hiroto Ikeda 2-2-1-16, Hyoshu, Koto-ku, Tokyo Ishikawajima-Harima Heavy Industries, Ltd. Tokyo Engineering Center F-term (reference) 2E101 AA00 BB00 DD13 EE00 2E174 CA03 CA09 CA13 DA11 DA24 DA51

Claims (8)

[Claims] 1. A method of constructing a building with a lift staircase provided with a lift staircase provided on a side of a building main body so as to be able to move between the ground and a roof of the building, the building method using a tower crane. A building main body building step of building a building body, and a lifting stair building step of building a lifting staircase in which the lower structure of the tower crane is part of the structure. Construction method. 2. The building main body construction step uses a first tower crane and a second tower crane as tower cranes, and the elevating staircase construction step includes a first lower structure of the first tower crane. The method for constructing a building with a staircase according to claim 1, wherein a staircase is constructed by bridging a staircase structure with the second lower structure of the second tower crane. 3. A method for constructing a building elevating staircase provided on a lateral side of a building main body so as to be able to move between the ground and the roof of the building, wherein the tower crane is used for constructing a tank main body. A method for constructing a building elevating staircase, comprising: an upper structure removing step of removing an upper structure while leaving a lower structure, and a stair structure installing step of providing a stair structure in the lower structure. 4. The tower crane further includes a first tower crane and a second tower crane, and the superstructure removal step includes removing the first lower structure from the first tower crane with the first upper crane. A first upper structure removing step of removing the structure, and a second upper structure removing step of removing the second upper structure while leaving the second lower structure from the second tower crane; 4. The method according to claim 3, further comprising a stair structure installation step of providing a stair structure by bridging the stair structure between the first lower structure and the second lower structure. 5. A building with a lifting staircase provided on a side thereof with a lifting stair for allowing the ground and the roof of the building to move between and out of the building, the building having a building body, a column and a staircase structure. What is claimed is: 1. A building with an elevator staircase, comprising: a lifting stair, wherein a support is a lower structure of a tower crane used for constructing a building body, and the stair structure is supported by the support. 6. The post has a first post and a second post, and the first post is a lower structure of a first tower crane used for building a building body, and the second post is a second post. The strut is a lower structure of a second tower crane used for constructing the building body, and the staircase structure is bridged and supported between the first strut and the second strut. The building with a staircase according to claim 5. 7. A building elevating staircase provided on a side of a building main body so as to be able to move between the ground and the roof of the building, comprising a column and a stair structure, wherein the column is a building What is claimed is: 1. A lowering structure of a tower crane used for constructing a main body of a building, wherein the staircase structure is supported by the column. 8. A column having a first column and a second column, wherein the first column is a lower structure of a first tower crane used for constructing a building body, and the second column is provided. Is the lower structure of the second tower crane used for building the building body, wherein the staircase structure is supported by being bridged between the first support and the second support. The building elevating staircase according to claim 7.