JPH08105229A - How to build a building - Google Patents

Abstract

(57) [Summary] [Purpose] A building that allows construction to be performed even on a narrow site, allows the construction work to be performed safely, and enables the early start of operation of the accommodated equipment and facilities. The purpose is to provide a construction method of. [Structure] In the first step, the pillar 3 and the roof frame 4 are constructed to form a core frame, and in the second step, the boiler 1 is suspended and installed at a predetermined position. The building 2 is constructed by constructing the frame 5.
Moreover, when constructing the pillar 3, after providing the roof frame 4 of the building 2 on the upper part of the temporary pillar, a part of the entire length of the pillar 3 is erected, and then the climbing work of the roof frame 4 is performed. The construction for constructing the pillar 3 to a predetermined length is alternately repeated by the extension construction work of the pillar 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a building suitable for use in constructing a building that accommodates large-scale equipment and facilities such as a boiler provided in a thermal power plant.

[0002]

2. Description of the Related Art Generally, a building for housing a large-scale device or equipment such as a boiler of a thermal power plant is made of a steel frame having a large cross section. Conventionally, in order to build such a steel frame building, a large lifting machine was used to build the steel frame from the bottom to the top, and after the building was completed, the equipment and facilities were brought in.・ It was installed.

[0003]

However, the conventional building method as described above has the following problems. First, in order to construct the steel frames constituting the building, since these steel frames have a large cross section, it is necessary to use a large lifting machine to lift them. Therefore, when the building site to be constructed is small, it is difficult to secure a space for installing such a lifting machine, or
There is a problem that the temporary land will run short. Further, when constructing the roof frame, this work is performed at a high place, and there is room for improvement in terms of safety. Furthermore, if it is desired to start operation of equipment and facilities early,
It is necessary to speed up the delivery of equipment and facilities. However, the building must have the required strength in order to support the load of large equipment and facilities during loading. Therefore, in order to carry in the equipment and facilities before the completion of building the building, it is necessary to reinforce the building with a large amount of temporary reinforcing members, which is very time-consuming. It is the actual situation that the equipment and facilities cannot be carried in until it is completed, so it was difficult to speed up the start of operation of the equipment and facilities. The present invention has been made in consideration of the above points, and construction is possible even in a narrow site,
Moreover, it is an object of the present invention to provide a method of constructing a building that enables the construction work to be performed safely, and that allows the stored equipment and facilities to start operating at an early stage.

[0004]

The invention according to claim 1 is
A method of constructing a building that accommodates large-scale equipment and facilities, comprising the steps of constructing a pillar of the building and then constructing a roof frame on the pillar, and the equipment and facilities to be accommodated. In the first step, the second step of suspending with a suspending means provided in the roof frame and installing at a predetermined position, and the third step of constructing an outer peripheral frame forming the outer periphery of the building In constructing the pillar, first, a temporary pillar having a certain length is formed, and the roof frame of the building is integrally provided on the temporary pillar, and then a part of the entire length of the pillar is erected. Then, after that, a climbing operation for obtaining a reaction force from the pillar by the jack-up means provided on the temporary support pillar to integrally climb the temporary support pillar and the roof frame, and the pillar below the climbed roof frame structure. Pillar extension work to extend and build Is characterized in that the repeated alternately.

According to a second aspect of the present invention, in the method of constructing a building according to the first aspect, after the first step, a part of the outer peripheral frame is formed on the lower surface of the roof frame constructed in the first step. It is characterized in that it is attached in advance and integrated with the pillar, and then the second step is carried out.

[0006]

According to the first aspect of the invention, the pillars of the building and the roof frame are constructed in the first step, and the equipment and facilities are suspended by the suspending means provided in the roof frame in the second step. The building is constructed by installing it at the specified position and constructing the outer frame in the third step. In this way,
When the pillars and roof frame of the building are constructed, the equipment and facilities are installed prior to the construction of the outer frame, so that it is possible to carry out the trial run of the equipment and facilities from an early stage. Further, in constructing the pillar in the first step, first, after providing the roof frame of the building on the upper part of the temporary pillar, part of the entire length of the main pillar is erected, and then the temporary structure is installed. Climbing work of columns and roof frames and extension work of columns are alternately repeated. This allows
Construction work of roof frame can be performed on the ground.
Further, by providing the roof frame with lifting means such as a hoist crane, the building can be constructed without installing other lifting equipment or the like on the ground.

According to the second aspect of the present invention, after the first step, an outer peripheral frame having a certain length is preliminarily attached to the lower surface of the constructed roof frame to be integrated with the pillar, and then the second step is performed. . As a result, the preliminarily attached outer peripheral frame reinforces and strengthens the frame composed of the roof frame and the pillars, and it is possible to withstand the load when suspending equipment and facilities in the second step. Become.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. Here, for example, an example in the case of constructing a building for housing a boiler provided in a thermal power plant will be described. FIG. 1 shows a building constructed by applying the building construction method according to the present invention. In this figure, reference numeral 1 is a boiler (equipment), 2 is a building that houses the boiler 1, 3 is a pillar that constitutes the building 2, 4 is a roof frame, and 5 is an outer frame that forms the outer peripheral portion of the building 2 (see FIG. 1). (A) is shown by the hatched portion.

As shown in FIG. 1, the boiler 1 includes a building 2
It is housed in the central part of and is installed on the support base 6.

The columns 3, 3, ... Constituting the building 2 are the building 2
It is arranged so as to be located on four sides around the boiler 1 on the inner side of the. Each pillar 3 is made of reinforced concrete,
In addition, it is formed from a box column having a rectangular tubular shape in cross section.

The roof frame 4 is provided so as to be supported on the pillars 3, 3, ... And has a structure in which the roof frame 4 projects horizontally outward from the pillars 3, 3 ,. The roof frame 4 is made of steel and is formed by assembling an upper chord member 7, a lower chord member 8, a connecting member 9 that connects these members, and a lattice member 10 in a truss shape.

The outer peripheral frame 5 is formed so as to surround the outer peripheral sides of the columns 3, 3, ... And is joined to the outer peripheral surface of each column 3 and the lower surface of the overhanging portion 4a of the roof frame 4. The outer peripheral frame 5 is composed of a large number of block-shaped outer peripheral modules 11. Each outer peripheral module 11 is made of steel and has a vertical member 12 that constitutes a column of the outer peripheral frame 5, a horizontal member 13 that constitutes a beam, and a brace member 1 that reinforces these members.
4.

Next, a method of constructing the building 2 having the above structure will be described with reference to FIGS.

[First Step] First, as shown in FIG.
At the position where each pillar 3 should be erected on the ground, the temporary support pillar 2
0 is set up. Each of the temporary columns 20 is made of steel, has a certain length in the vertical direction, and has an outer cross-sectional dimension that can be stored in the column 3 to be constructed. Then, each temporary support column 20 is provided with a climbing mechanism (jack up means), not shown, so that the column 3 can be vertically moved by taking a reaction force.

Next, the roof frame 4 is assembled on the ground, and the roof frame 4 is joined to the temporary columns 20, 20, ...

Subsequently, as shown in FIG. 3, each temporary support column 2
By assembling a form (not shown) around the outer periphery of 0, arranging reinforcing bars here, and then placing concrete,
Form columns 3, 3, ... Of constant length. As a mold (not shown) used at this time, a mold (not shown) for the slipform method is suitable.

A jib crane (suspension means) 21 is provided on the upper surface of the roof frame 4, and a lifting mechanism (suspension means) 2 is provided on the lower surface thereof.
Install 2 respectively. The lifting mechanism 22 is composed of a hoist crane or the like that is movable in the horizontal direction and can convey materials and the like in the vertical direction.

After the concrete of each of the temporary columns 20 is hardened, a climbing mechanism (not shown) provided in each of the temporary columns 20 is simultaneously operated to simultaneously climb the temporary columns 20. As a result, the roof frame 4 integrated with the temporary columns 20, 20, ... Is jacked up and climbed upward.

Then, after this, the pillar extension work for forming the pillar 3 to a predetermined length and extending the pillar 3 on each of the pillars 3 previously formed and the climbing work for the roof frame 4 are alternately repeated. Build up each pillar 3 to a predetermined length. In addition, at this time, in the column extension work, a slip-form construction method in which the form is slid upward is applied. Further, necessary materials such as reinforcing bars are lifted by the jib crane 21 and the lifting mechanism 22.

As shown in FIG. 4, the columns 3,
After building 3, ... to the specified length, the jib crane 21
Then, the temporary columns 20 (see FIG. 3) are dismantled and removed, and the roof frame 4 is placed and fixed on the columns 3, 3, .... The pillar 3 and the roof frame 4 constructed in this manner constitute a core frame 23 for supporting the load of the boiler 1 (see FIG. 1) when it is carried in.

Subsequently, the side surfaces A of the outer frame 4 facing each other,
Peripheral module 11 that should be located at the top on the B side
A is lifted by the lifting mechanism 22, and is attached to the outer peripheral surface of the pillar 3 and the lower surface of the overhanging portion 4a of the roof frame 4 as shown in FIG. Then, the attached outer peripheral module 1
On the side faces C and D orthogonal to 1a and 11a, the outer peripheral modules 11b and 11b are lifted and mounted between the columns 3 and 3 in the same manner as described above. As a result, the core frame 23
The joint between the pillar 3 and the roof frame 4 is the outer peripheral module 11
It is reinforced by a, 11a, 11b and 11b.

[Second Step] Next, the boiler 1 is carried in and installed inside the core frame 23 constructed as described above. First, as shown in FIG. 6, on the side surface B side, below the outer peripheral module 11a previously attached,
The outer peripheral modules 11, 11, ... Are sequentially attached from the upper side to the lower side. However, this is performed only when the site of the building 2 to be constructed is small and it is not possible to carry in the materials from the side B side.

Next, the upper half 1 of the boiler 1 to be installed
A is mounted on the moving carriage 24, and is moved from the side surface A side in the direction of the arrow (a) in the figure to be carried in to a predetermined position in the building 2. Then, the upper half portion 1a of the boiler 1 is lifted and held by a lifting mechanism (not shown) provided on the roof frame 4.

Then, as shown in FIG. 7, the lower half portion 1b of the boiler 1 is similarly carried in from the side surface A side to a predetermined position in the building 2 by the movable carriage 24. Then, the upper half 1a of the boiler 1 that has been lifted is lowered and brought into contact with the lower half 1b, and then the upper half 1a and the lower half 1b are welded and integrated. At this time, a curing sheet 25 is stretched around the boiler 1 to prevent wind during welding. After that, the integrated boiler 1 is lifted by a lifting mechanism (not shown), and the moving carriage 24 is pulled out from below. And
As shown in FIG. 8, the boiler 1 is lowered to mount and fix the boiler 1 on the support base 6.

[Third Step] In this way, the boiler 1
After installing, the outer frame 5 is constructed. On the side surfaces C and D, the outer peripheral modules 11, 11, ... Are sequentially attached from the lower side to the upper side by the lifting mechanism 22. And finally, in the same manner, the outer peripheral modules 11, 1
Attach 1, ... to the side A side. In this way,
As shown in Fig. 1, after the construction of the outer frame 5 is completed,
The construction of the building 2 is completed by disassembling and removing the lifting mechanism 22.

In the method of constructing the building 2 described above, the pillar 3 and the roof frame 4 are constructed in the first step to form the core frame 23, and the boiler 1 is suspended in the core frame 23 in the second step. The building 2 is constructed by installing this at a predetermined position and constructing the outer peripheral frame 5 in the third step. In this way, when the pillar 3 of the building 2 and the roof frame 4 are constructed to construct the core frame 23, the boiler 1 is installed prior to the construction of the outer frame 5,
It is possible to perform a trial operation of the boiler 1 and the like in parallel with the work of constructing the outer peripheral frame 5, and thereby it is possible to speed up the operation start of the boiler 1.

After the core frame 23 is constructed in the first step, the outer peripheral modules 11a and 11b constituting the upper layer of the outer peripheral frame 5 are attached to the lower surface of the roof frame 4 in advance. As a result, the previously attached outer peripheral module 11a,
The core frame 23 is reinforced by 11b, so that the load can be resisted when the boiler 1 is suspended in the second step. As a result, it is possible to minimize the temporary reinforcing member that is installed only for ensuring the rigidity for suspending the boiler 1, and at the same time, reduce the cross section of the member that constitutes the roof frame 4 to the minimum and reduce the cost. Can be suppressed.

Further, in constructing the pillar 3 in the first step, first, after providing the roof frame 4 of the building 2 on the upper part of the temporary pillar 20, a part of the entire length of the pillar 3 is erected.
Thereafter, the climbing work of the roof frame 4 and the extension work of the pillar 3 are alternately repeated to construct the pillar 3 to a predetermined length. As a result, the work for constructing the roof frame 4 can be performed on the ground, work at high places can be reduced, and work safety can be significantly improved. Further, since the roof frame 4 is provided with the jib crane 21 and the lifting mechanism 22, the building 2 can be constructed without installing other lifting equipment or the like on the ground, and the building 2 can be constructed by the conventional method.
It is possible to build the building 2 even on a narrow site where the building could not be constructed.

In addition, since the outer peripheral frame 5 is composed of a large number of outer peripheral modules 11, work in high places can be reduced and work safety can be improved also from this point.

Further, since the pillar 3 is composed of a box pillar, and the temporary pillar 20 is climbed while being housed inside the pillar 3, there is not enough space around the pillar 3 to be constructed. In this case, the pillar 3 can be constructed. Furthermore, since the slip-form construction method is applied when constructing the pillars 3, it is possible to proceed with the work smoothly even from a small work area from this point.

In the above embodiment, the temporary support column 20 is used.
The climbing is carried out in the state where the column 3 is housed inside the pillar 3, but of course, the temporary column 2 is arranged along the outer peripheral surface of the pillar 3.
The configuration may be such that 0 is climbed. Also, pillar 3
The structure is located inside the building 2, but the pillar 3 is the building 2
Even if the structure is located at the four corners, it is possible to obtain the same effect as described above. Further, it is needless to say that the building 2 is not limited to the above-described use, and may be configured to house equipment and facilities other than the boiler 1.

[0032]

As described above, according to the building construction method of the first aspect, the pillars and roof frame of the building are constructed in the first step, and the equipment and facilities are suspended in the second step. The building is constructed by suspending it with a lower means and installing it at a predetermined position and constructing the outer frame in the third step. As a result, when the pillars and roof frame of the building are constructed, the equipment and facilities are installed prior to the construction of the outer frame, so the equipment and facilities can be commissioned in parallel with the construction of the outer frame. This makes it possible to accelerate the start of operation of the equipment and facilities. Further, in constructing the pillar in the first step, first, after providing the roof frame of the building on the upper part of the temporary pillar, a part of the entire length of the pillar is erected, and then the temporary pillar and the roof frame. The climbing work and the column extension work were alternately repeated. As a result, the work of constructing the roof frame can be performed on the ground, work at high places can be significantly reduced, and work safety can be greatly improved. In addition, by providing the roof frame with lifting means such as a hoist crane, it is possible to construct the building without installing other lifting equipment, etc. on the ground, and to construct the building by the conventional construction method. It is possible to build a building even on a narrow site that was not possible.

According to the building construction method of claim 2,
After the first step, an outer peripheral frame of a certain length is preliminarily attached to the lower surface of the constructed roof frame, and then the second step is performed. As a result, the preliminarily attached outer peripheral frame strengthens the frame composed of the roof frame and the pillars, and it becomes possible to withstand the load when the equipment or facility is suspended in the second step. As a result, it is possible to minimize the temporary reinforcing member that is installed only to secure the rigidity for suspending equipment and facilities, and at the same time reduce the cross section of the members that make up the roof frame etc. to the minimum. It is possible to keep costs down.

[Brief description of drawings]

FIG. 1 is a plan view and a side view showing an example of a building constructed by applying a building construction method according to the present invention.

FIG. 2 is a diagram showing steps of a method of constructing the building,
It is the top view and front view which show the state which built the temporary support | pillar and the roof frame.

FIG. 3 is a plan view and a front view showing a state in which a pillar is constructed to have a certain length and a temporary support pillar and a roof frame are lifted up.

FIG. 4 is a plan view and a side view showing a state where the construction of the entire length of the column is completed and the uppermost outer peripheral frame is attached.

FIG. 5 is a plan view and a front view showing a state in which the other outermost frame of the uppermost part is attached.

FIG. 6 is a plan view and a side view showing a state in which the upper half of the equipment housed in the building is carried in.

FIG. 7 is a plan view and a side view showing a state where the lower half of the device is carried in.

FIG. 8 is a plan view and a front view showing a state in which installation of the device is completed.

[Explanation of symbols]

 1 Boiler (equipment) 2 Building 3 Pillar 4 Roof frame 5 Perimeter frame 20 Temporary column

Claims (2)

[Claims] 1. A method of constructing a building for accommodating large-scale equipment and facilities, comprising the steps of constructing a pillar of the building and then constructing a roof frame on the pillar; A second step of suspending equipment and facilities by a suspending means provided in the roof frame and installing the equipment and facility at a predetermined position; and a third step of constructing an outer peripheral frame forming the outer periphery of the building, When constructing the pillar in the first step,
First, a temporary support pillar having a certain length is formed, and the roof frame of the building is integrally provided on the temporary support pillar, and then a part of the entire length of the pillar is erected, and then the temporary support pillar is installed. A climbing work to obtain a reaction force to the pillar by the jack-up means provided in the climbing work to integrally climb the temporary support pillar and the roof frame, and a pillar extension work to extend and construct the pillar below the climbed roof frame. The building construction method is characterized in that the steps are alternately repeated. 2. The building construction method according to claim 1, wherein after the first step, a part of the outer perimeter frame is attached in advance to the lower surface of the roof frame constructed in the first step, A method of constructing a building, characterized by integrating and then performing the second step.