JP3225455B2 - How to build a building - Google Patents

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 constructing a building for accommodating large-scale equipment and equipment, such as a boiler for a thermal power plant.

[0002]

2. Description of the Related Art In general, a building for accommodating large-scale equipment and facilities, such as a boiler of a thermal power plant, is formed of a steel frame having a large cross section. Conventionally, to build such a steel-framed building, a large lifting machine was used to construct the steel frame from below to above, and after the construction was completed, equipment and facilities were brought inside.・ It was installed.

[0003]

However, the conventional building construction method as described above has the following problems. First, in order to construct the steel frames constituting the building, it is necessary to use a large lifting machine because these steel frames have a large cross section. For this reason, when the site of the building to be constructed is narrow, there is a problem that it is difficult to secure a space for installing the hoisting machine, and there is a shortage of temporary premises. In addition, when installing the roof frame, since this work is performed at a high place, there is room for improvement in terms of safety. Further, when it is desired to start the operation of the equipment or the facility at an early stage, it is necessary to accelerate the loading of the equipment or the equipment. However, in order to support the load of large-sized equipment and equipment at the time of loading, the building must have a required strength. For this reason, in order to carry in the equipment and facilities before the building is completed, the building must be reinforced with a large number of temporary reinforcing members, which is very time-consuming. Was. For this reason, in reality, it is difficult to carry in the equipment and facilities until the construction work of the building is completed. Therefore, it has been difficult to promptly start the operation of the equipment and facilities. The present invention has been made in consideration of the above points, and can be constructed even on a narrow site,
It is another object of the present invention to provide a method for constructing a building that can safely perform the construction work and that can start operation of the housed equipment and facilities at an early stage.

[0004]

The invention according to claim 1 is
A method for constructing a building accommodating large-scale equipment, equipment, and the like, wherein a pillar of the building is constructed, and a roof frame that has been prefabricated is lifted and installed by a lifting means provided on the pillar. And a second step of suspending the equipment and facilities to be accommodated by suspending means provided on the roof frame and installing it at a predetermined position, and a second step of constructing an outer frame forming the outer periphery of the building. When constructing the pillar in the first step, firstly, a part of the entire length of the pillar is erected, and then the temporary erection is established on the side of the pillar. With a jack-up means provided on a support, a push-up operation of pushing up the column and a column extension operation of extending and building the column below the pushed-up column are alternately repeated. I have.

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

[0006] The invention according to claim 3 is the invention according to claim 1 or 2.
In the method for constructing a building described in the above, in the first step, pillar members made of a tubular steel pipe having a certain length in the vertical direction are arranged at four corners, and a beam member is erected between these pillar members. After connecting a predetermined number of column units consisting of up and down, concrete is poured into each of the column members, whereby the columns are constructed.

[0007]

According to the first aspect of the present invention, in the first step, the pillars and the roof frame of the building are constructed, and in the second step, the equipment and facilities are suspended by the suspension means provided on the roof frame, and this is suspended. The building was constructed by installing it at a predetermined position and constructing the outer frame in the third step. In this way,
When the pillars and the roof frame of the building are constructed, the equipment and facilities are installed prior to the construction of the outer frame, so that the test operation of the equipment and facilities can be performed from an early stage. Further, when constructing the pillar in the first step, firstly, a part of the total length of the main pillar is erected, and then a jack-up means provided on a temporary support pillar erected on the side of the pillar. Thus, a push-up operation of pushing up the pillar and a pillar extension operation of extending and building the pillar below the pushed-up pillar are alternately repeated.
Thereby, the construction work of the pillar can be performed on the ground. Furthermore, since the roof frame was previously grounded, and this was lifted and installed by the lifting means provided on the pillar,
The work of assembling the roof frame at a high place can be minimized.

According to the second aspect of the present invention, after the first step, an outer peripheral frame having a predetermined length is attached to the lower surface of the constructed roof frame to be integrated with the pillar, and then the second step is performed. . With this, the frame consisting of the roof frame and the pillars is reinforced by the pre-installed outer frame and becomes strong, and it is possible to withstand the load when suspending equipment and facilities in the second step. Become.

According to the third aspect of the present invention, in the first step, a column member made of a steel pipe having a certain length in the vertical direction is arranged at four corners, and a beam member is erected between these column members. After connecting a predetermined number of vertical column units, concrete was poured into each column member. As a result, each column is provided with four filled steel pipe concrete columns in which the column members are filled with concrete, and each column has a high strength. In addition, since the concrete is cast after connecting the pillar units, each pillar unit itself becomes lightweight, and it is not necessary to use a large-scale lifting equipment at the time of installation.

[0010]

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 which a building for housing a boiler provided in a thermal power plant is constructed 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 denotes a boiler (equipment), and 2 denotes a building that houses the boiler 1.

The building 2 has core pillars (pillars) 3 at its four corners.
Are arranged between the core pillars 3, 3, and an outer peripheral frame 4 that forms the outer peripheral portion of the building 2 is arranged. It has a configuration in which a covering roof frame 5 is provided.

As shown in FIG. 1B, each core pillar 3
Is composed of a predetermined number of pillar units 6 connected in the vertical direction. As shown in FIG. 2, each pillar unit 6
Column members 7, 7,... Made of a steel pipe having a certain length in the vertical direction and having a rectangular cross section are arranged at four corners, and beam members 8, 8 are erected above and below between the adjacent column members 7, 7. Configuration. The beam member 8a located on the lower side of the column unit 6 has a cross-sectional dimension as a large beam, and the beam member 8b located on the upper side has a cross-sectional dimension as a connecting member. Things are used. As shown in FIG. 1, in the column units 6, 6,... Connected in a predetermined number in the vertical direction, concrete is poured and filled in the column members 7 that are vertically continuous at the four corners. Thus, the core pillar 3 has a configuration in which four pillars 10 made of filled steel pipe concrete are provided.

The outer frame 4 is formed from a plurality of block-shaped outer modules 11. Each peripheral module 1
Reference numeral 1 denotes a vertical member 1 which is a steel frame and forms a column of an outer frame 4.
2, a horizontal member 13 forming a beam, and a brace member 14 for reinforcing these members.

The roof frame 5 is made of a steel frame and has an upper chord material 15 and
A lower chord member 16, a connecting member 17 for connecting these members, and a lattice member 18 are formed in a truss shape.

The boiler 1 is accommodated in the center of the building 2 having the above-described configuration, and is installed on a support 19.

Next, a temporary support 20 used when constructing the core column 3 of the building 2 will be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIGS. 3 and 4, the temporary support 20 is a support main body 21 having a certain length in the vertical direction.
And a guide member 22 provided integrally with the column main body 21 along one side surface of the column main body 21, and a rail member 23 provided along both sides of the guide member 22.

As shown in FIG. 4, the guide member 22 is
It has a substantially U-shape in cross section, and includes a base 22a extending along one side surface 21a of the support body 21 and side plate portions 22b, 22b extending from both ends of the base 22a in a direction orthogonal to the base 22a. Then, as shown in FIG.
2b and 22b are provided at regular intervals in the vertical direction, respectively.
A rectangular stopper hole 24 is formed.

The side plate 22b of the guide member 22,
A jack device (jack-up means) 25 that is vertically expandable and contractible is provided between the terminals 22b. As shown in FIG. 5, the jack device 25 has an upper stopper 26 and a lower stopper 27 at an upper end and a lower end. The upper stopper 26 and the lower stopper 27
Each is provided with opposing stopper members 28, 28 which can be retracted in the horizontal direction.

Such a jack device 25 includes a stopper member 2 for each of an upper stopper 26 and a lower stopper 27.
8 and 28 are projected so that the stopper hole 2 of the guide member 22 is formed.
The guide members 22, that is, the temporary support columns 20 are engaged with the guide members 22 by inserting them into the support members 4, 24. In this state, the jack device 25 can be raised between the side plates 22b and 22b of the guide member 22 by operating the jack device 25 in the following procedures. The stopper members 28, 28 of the upper stopper 26 are retreated from the stopper holes 24, 24. The jack device 25 is extended by the same dimension as the interval between the stopper holes 24 of the guide member 22. The stopper members 28, 28 of the upper stopper 26 are made to protrude and inserted into the stopper holes 24, 24. The stopper members, of the lower stopper 27 are retreated from the stopper holes,. The jack device 25 is contracted by the same dimension as the interval between the stopper holes 24 of the guide member 22. The stopper members 28, 28 of the lower stopper 27 are made to protrude and inserted into the stopper holes 24, 24.

Then, as shown in FIG. 4, the temporary columns 20 having the above-mentioned construction are respectively arranged on the respective column members 7 of the column unit 6, and the upper ends of the jack devices 25 of the respective temporary columns 20 are respectively provided for the column members 7. The column unit 6 can be pushed up by supporting the beam bracket 29 formed on the side surface and simultaneously raising the jack devices 25 as described above.

As shown in FIG. 3, the guide member 23
Is substantially U-shaped in cross section, and is provided on the column body 21 over a certain length in the vertical direction. As shown in FIG. 6, the column unit 6 is provided with a jack mechanism 30 which can be extended and contracted in the horizontal direction at a position facing the guide member 23, and a guide roller 31 is rotatably provided at a tip end thereof. I have. By extending the jack mechanism 30 and positioning the guide roller 31 in the guide member 23, the column unit 6 is guided when the column unit 6 is raised.

Next, the construction method of the building 2 will be described.
This will be described with reference to FIGS. [First Step] First, as shown in FIG. 7, on the ground, among the core pillars 3, 3,... To be erected, temporary pillars 20, 20,. .
Then, the column unit 6 is set on the jack devices 25, 25,... (See FIG. 5) of the temporary columns 20, 20,.
Next, the jack devices 25, 25,... Are operated simultaneously to push up the column unit 6. Subsequently, another pillar unit 6 is newly set on the ground below the pushed up pillar unit 6, and the upper and lower pillar units 6, 6 are connected. Then, the jack device 25 of each temporary support 20 is lowered along the guide member 22, and the lower column unit 6
(Fig. 3).

Thereafter, in the same manner as described above, the push-up operation of the column unit 6, the connection operation of the new column unit 6 (post extension operation), and the rearrangement operation of the jack device 25 are sequentially repeated, and the connected column units are sequentially repeated. When the height of 6, 6,... Reaches a predetermined height, concrete is poured and filled into each column member 7 of the column unit 6 from above. Thus, the core pillar 3 having the pillars 10 made of concrete filled with steel pipes at the four corners is erected.

Thereafter, the other core pillars 3, 3, 3 are sequentially constructed in exactly the same manner as described above. At this time, the temporary columns 20, 20,.
Are diverted sequentially.

As shown in FIG. 8, a lifting mechanism (lifting means) 32 composed of, for example, a winch is installed on the upper surface of each core pillar 3 constructed in this manner.

Next, on the opposing side surfaces A and B of the building 2 to be constructed, the outer peripheral module 11a constituting the uppermost layer of the outer peripheral frame 4 is lifted between the upper ends of the adjacent core pillars 3 and 3, respectively. It is suspended by the heavy mechanism 32 and installed.

Next, as shown in FIG. 9, the outer peripheral modules 11b, 11b constituting the uppermost layer of the outer frame 4 between the adjacent core pillars 3, 3 on the side surfaces C, D of the building 2,
The roof frame 5 is suspended and lifted by the lifting mechanisms 32, 32. At this time, the outer peripheral modules 11b, 11b and the roof frame 5 are to be assembled integrally on the ground. At this point, the core pillars 3, 3, ..., the roof frame 5,
The upper layer of the outer frame 4 is integrally constructed, and the boiler 1
This means that a core frame 33 (see FIG. 10) for supporting the load when carrying in (see FIG. 1) is configured. Then, the joint between the core column 3 of the core frame 33 and the roof frame 5 is reinforced by the outer modules 11a, 11a, 11b, 11b constituting the upper layer of the outer frame 4.

[Second Step] Next, the boiler 1 is loaded and installed inside the core frame 33 constructed as described above. Prior to this, first, as shown in FIG.
On the side, the outer peripheral modules 11, 11,... Are sequentially mounted from the upper side to the lower side below the previously mounted outer peripheral module 11a. However, this is performed only when the site of the building 2 to be constructed is narrow and it is not possible to carry in materials from the side B side.

Subsequently, as shown in FIG. 11, the upper half 1a of the boiler 1 to be installed is mounted on a movable carriage 35, and is moved from the side A in the direction of the arrow in FIG. Carry in to a predetermined position. Then, the upper half 1a of the boiler 1 is lifted and held by a lifting mechanism 34 (suspension means) provided on the roof frame 5.

Next, as shown in FIG.
The lower half 1b is similarly carried in from the side A to a predetermined position in the building 2 by the movable carriage 35. Then, the upper half 1a of the boiler 1 that has been lifted is lowered to lower half 1b.
After that, the upper half 1a and the lower half 1b are welded and integrated. Thereafter, the integrated boiler 1 is lifted by the lifting mechanism 34, and the movable carriage 35 is pulled out from below. Then, as shown in FIG. 13, the boiler 1 is lowered to place and fix the boiler 1 on the support base 19.

[Third Step] In this manner, the boiler 1
After the installation, the outer frame 4 is constructed. On the side surfaces C and D, the outer peripheral modules 11, 11,... Are lifted by the lifting mechanism 32 and are sequentially attached from above to below. And finally, in the same manner, the outer peripheral modules 11, 1
Are attached to the side A side. In this way,
As shown in FIG. 1, after the construction of the outer frame 4 is completed,
By dismantling and removing the lifting mechanisms 32 and 34, the construction of the building 2 is completed.

In the construction method of the building 2 described above, the core pillar 3 and the roof frame 5 are constructed in the first step to form the core frame 33, and the boiler 1 is suspended in the core frame 33 in the second step. In the third step, the building 2 was constructed by installing the apparatus at a predetermined position and constructing the outer frame 4 in the third step. In this way, when the core pillar 3 and the roof frame 5 of the building 2 are constructed and the core frame 33 is constructed, the boiler 1 is installed prior to the construction of the outer frame 4. The trial operation of the boiler 1 and the like can be performed in parallel with the construction work of the above, so that the operation start of the boiler 1 can be accelerated.

After the core frame 33 is constructed in the first step, the outer modules 11a and 11b constituting the upper layer of the outer frame 4 are attached to the lower surface of the roof frame 5 in advance. As a result, the outer peripheral modules 11a,
11b reinforces the core frame 33, and when the boiler 1 is suspended in the second step, it becomes possible to withstand the load. As a result, it is possible to minimize the number of temporary reinforcing members installed only for securing the rigidity for suspending the boiler 1, and to reduce the cross section of the members constituting the roof frame 5 to a minimum. Thus, the cost can be suppressed.

Further, in constructing the core pillar 3 in the first step, first, the pillar unit 6 is installed, and then the jack device 2 provided on the temporary pillars 20, 20,.
The push-up operation of pushing up the pillar unit 6 with 5, 25,... And the pushed-up pillar unit 6
And a column extension operation of newly installing a column unit 6 below and extending the core column 3 is alternately repeated. Thereby, the construction work of the core pillar 3 can be performed on the ground, and the work at high places can be reduced and safety can be improved. In addition, since the roof frame 5 is laid in advance and is lifted and installed by the lifting mechanism 32 provided on the core column 3, the work of assembling the roof frame 3 at a high place can be minimized. can do. From this point as well, it is possible to enhance the safety of work. Furthermore, core pillar 3, roof frame 5
Since the structure is provided with the lifting mechanisms 32 and 34, the building 2 can be constructed without installing other lifting equipment and the like on the ground, and the building 2 can be constructed by the conventional construction method. The building 2 can be constructed even on a narrow site that has not been found.

In addition, since the outer frame 4 is composed of a large number of outer modules 11, work efficiency can be improved, and work in high places can be reduced, and work safety can be improved. Can be.

In constructing the core column 3 in the first step, a predetermined number of column units 6, 6,... Are connected up and down, and then each column member 7 made of a steel pipe arranged at the four corners of the column unit 6. Concrete was poured inside. As a result, each core column 3 has a filled steel tube concrete column 10
Are provided, and each core column 3 has high strength. Moreover, since each pillar unit 6 itself is lightweight and easy to handle, there is no need to use a large-scale lifting equipment at the time of installation, and the core pillar 3 having high strength can be easily constructed. .

In the above embodiment, the use of the building 2 is not limited to the above, and it goes without saying that the building 2 may be configured to accommodate equipment and facilities other than the boiler 1. In addition, the method of constructing the core pillar 3 using the temporary support pillars 20 can be effectively applied to not only the building 2 having the above-described configuration but also a frame structure having columns vertically long. .

[0038]

As described above, according to the building construction method of the first aspect, the pillars and the roof frame of the building are constructed in the first step, and the roof frame is provided in the second step. The building is constructed by suspending the equipment and facilities by the suspending means, installing them at predetermined positions, and constructing the outer frame in the third step. In this way, when the pillars and the roof frame of the building are constructed, the equipment and facilities are installed prior to the construction of the outer frame, so that the equipment and facilities are tested in parallel with the construction of the outer frame. This makes it possible to early start the operation of the devices and equipment. Further, when constructing the pillar in the first step, firstly, a part of the total length of the main pillar is erected, and then the push-up means for pushing up the pillar by jack-up means provided on the temporary pillar is provided. The up work and the pillar extension work of extending and constructing the pillar below the pushed-up pillar are alternately repeated. Thereby, the construction work of the pillar can be performed on the ground, and the work at height can be significantly reduced, and the safety of the work can be improved. In addition, since the roof frame is pre-grounded and lifted and installed by the lifting means provided on the pillars, assembly work of the roof frame at a high place can be minimized. From this point of view, the safety of work can be greatly improved. Furthermore, by providing a lifting means such as a winch on the pillar or the roof frame in this way, the building can be constructed without installing other lifting equipment and the like in particular on the ground. Then, it is possible to build a building even on a narrow site where a building could not be built.

According to the building construction method of the second aspect,
After the first step, a fixed-length outer peripheral frame was attached to the lower surface of the constructed roof frame, and then the second step was performed. Thus, the frame composed of the roof frame and the pillars is strengthened by the attached outer frame, and it becomes possible to withstand the load when suspending equipment and facilities in the second step. As a result, it is possible to minimize the number of temporary reinforcing members installed only for securing rigidity for suspending equipment and facilities, and to reduce the cross section of members constituting the roof frame and the like to the minimum. Costs can be reduced.

According to the building construction method of the third aspect,
In constructing a pillar in the first step, after connecting a plurality of pillar units up and down, concrete was poured into each pillar member composed of steel pipes arranged at the four corners of the pillar unit. As a result, each column is provided with four filled steel pipe concrete columns, and each column has a high strength. Moreover, each pillar unit is lightweight, easy to handle, and does not require large-scale lifting equipment at the time of installation. Therefore, a pillar having high strength can be easily constructed.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a building constructed by applying a building construction method according to the present invention, wherein FIG.
It is a front view.

FIG. 2 is a perspective view showing a pillar unit constituting the pillar of the building.

FIG. 3 is a front view showing a temporary support used for installing the column unit.

FIG. 4 is a plan view showing an installation state of the temporary support.

FIGS. 5A and 5B are diagrams showing jack-up means provided on the temporary support column, wherein FIG. 5A is a front view and FIG. 5B is a side view.

FIGS. 6A and 6B are views showing a guide mechanism provided on the temporary support column, wherein FIG. 6A is a front view and FIG.

FIG. 7 is a diagram showing steps of the building construction method,
It is a figure which shows the state which is constructing a pillar, (a) is a top view, (b) is a side view.

FIG. 8 is a view showing a state in which the construction of the entire length of the pillar has been completed and the outermost frame at the top has been mounted, and FIG. 8 (a) is a plan view and FIG.

FIG. 9 is a view showing a state in which another outer peripheral frame and a roof frame are attached to the uppermost part, in which (a) is a plan view and (b) is a front view.

FIG. 10 is a view showing a state where the outer frame is attached, in which FIG. 10 (a) is a plan view and FIG. 10 (b) is a rear view.

FIG. 11 is a view showing a state where the upper half of the equipment housed in the building has been carried in, (a) a plan view and (b) a side view.

FIG. 12 is a view showing a state in which the lower half of the device is carried in, in which (a) is a plan view and (b) is a side view.

FIG. 13 is a diagram showing a state in which the installation of the device is completed, wherein (a) is a plan view and (b) is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Boiler (equipment) 2 Building 3 Core pillar (column) 4 Perimeter frame 5 Roof frame 6 Column unit 7 Column member 8 Beam member 9 Concrete 20 Temporary support 25 Jack device (jack-up means) 32 Lifting mechanism (lifting means) 34 Lifting mechanism (suspension means)

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-185124 (JP, A) JP-A-6-158733 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04H 5/02 E04B 1/35

Claims (3)

(57) [Claims] 1. A method of constructing a building for accommodating large-scale equipment, equipment, and the like, comprising: constructing a pillar of the building, and then lifting a prefabricated roof frame by a lifting means provided on the pillar. A first step of installing the equipment and facilities to be accommodated, and a second step of suspending the equipment and facilities to be accommodated by hanging means provided on the roof frame and installing the equipment and facilities at predetermined positions, and forming an outer periphery of the building And a third step of constructing a frame. In constructing the pillar in the first step,
First, a part of the entire length of the pillar is erected, and thereafter, a push-up operation of pushing up the pillar by a jack-up means provided on a temporary support pillar erected on the side of the pillar, A method of constructing a building, wherein a column extension operation of extending and constructing the pillar is alternately repeated below the pillar that has been raised. 2. The method for building a building according to claim 1, wherein after the first step, a part of the outer peripheral frame is pre-attached to a lower surface of the roof frame constructed in the first step, and the column is formed. A method for constructing a building, comprising integrating and then performing the second step. 3. The method for constructing a building according to claim 1, wherein in the first step, pillar members made of a tubular steel pipe having a certain length in the vertical direction are arranged at four corners, and these pillars are provided. After connecting a predetermined number of column units having a configuration in which a beam member is erected between members, a concrete is poured into each of the column members, thereby constructing the columns. And how to build the building.