JP2000192664A - Method for construction of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a construction period. SOLUTION: Construction areas 1 and 11 are divided into a large number of construction sections 2-10 and 12-29. When some construction work is completed in the central section 2 or central sections 12 and 13 shown by hatch lines, the work is conducted in first opposite outside construction sections 3 and 4 or 14-17, while another subsequent work is conducted in the central section 1 or the central sections 14 and 17. In this way, a plurality of different works, such as piling work, excavation, leveling concrete placing, reinforcing bar placing, form location work, anchor work, concrete placing, form demolition, back filling, steel erection, floor concrete work and finishing work, are conducted sequentially from the central section 2 or the central sections 12 and 13 to first-fourth opposite outside sections 3-10 or 14-29 in the directions shown by arrows.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for constructing a building.

[0002]

2. Description of the Related Art Buildings such as semiconductor manufacturing factories and precision processing factories include pile work, root cutting work, dumping concrete placement, reinforcing steel work, formwork construction work, anchor work, concrete placement, formwork dismantling, and burial. It is constructed by a number of different works, such as rehabilitation, steel frame construction, floor concrete work, finishing works, etc.

[0003]

However, the construction area of a building as described above may have a side as long as 200 m, for example. When a plurality of different works as described above are sequentially performed one by one in all such areas, the delay of the first work puts a burden on the number of days of the later work, and the last work requires two days.
Often, more than one type of construction must be performed at the same location, which lengthens the construction period. For this reason, it is conceivable to divide the construction area into a number of construction sections and carry out multiple constructions in order from the outer section to the central construction section.However, when performing construction in the central construction section, It is easy to concentrate heavy equipment etc. in a narrow area in the center because of
The construction in the center tends to be delayed, and the construction period cannot be shortened so much.

Accordingly, an object of the present invention is to provide a method for constructing a building which can shorten the construction period even in a construction area having a long side.

[0005]

A method of building a building according to the present invention is a method of building a building by a plurality of different works. The building area is divided into a number of work sections, and a certain work ends at a central work section. Then, a plurality of different works should be carried out from the central section to both outer sections in order, such as performing a certain construction in the outer sections on both sides adjacent to the central section, and performing another next task in the central section. It is characterized by.

[0006]

1 and 2 show a first embodiment of the present invention. FIG. 1 shows a plane in which a construction area is divided into a plurality of sections, and FIGS. 2 and 3 show each section. The relationship between the work performed and the construction period is shown. According to the method of the first embodiment, a building such as a building semiconductor manufacturing plant or a precision processing plant is used for pile work, root cutting work, dumping concrete placement, reinforcing steel work, formwork building work, anchor work, concrete casting, and molding. This is a case where the building is constructed by a plurality of different works such as frame dismantling, backfilling, steel frame construction, floor concrete work, finishing work, and the like, and the building area is a case where one side is long, for example, about 200 m.

FIG. 1A shows a case where the construction area 1 is relatively elongated, and the construction area 1 is divided into a number of sections 2, 3, 4, 5, 6, 7, 8, 9, 10 in the longitudinal direction. It is classified. Assuming that the construction section 2 is the central construction section, the construction sections 3 and 4 are the first outer outer construction sections adjacent to the construction section 2 that is the central construction section, and the construction sections 5 and 6 are the first outer construction sections that are adjacent to the first both outer construction sections. The two outer working sections, the working sections 7 and 8 are third outer working sections adjacent to the second and outer working sections 5 and 6, and the working sections 9 and 10 are the third outer working sections. Can be recognized as the fourth outer working section adjacent to. FIG. b shows a case where the vertical and horizontal sides of the construction area 11 are relatively long and the construction area 11 is wide, and the construction area 11 has a large number of construction sections 12, 1 in the horizontal and vertical directions.
3,14,15,16,17,18,19,20,2
1, 22, 23, 24, 25, 26, 27, 28, 29
It is divided into. Assuming that the work sections 12 and 13 are the center work section, the work sections 14 to 17 are the first outer outer work sections adjacent to the work sections 12 and 13 which are the central work sections, and the work sections 18 to 21 are the first outside work sections.
The second outer-side work sections adjacent to the work sections 14 to 17 that are both outer-side work areas, and the work sections 22 to 25 are the third outer-side work areas adjacent to the work sections 18 to 21 that are the second outer-side work areas.
It can be recognized that 6 to 29 are the fourth outer working sections adjacent to the working sections 22 to 25 that are the third outer working sections. In any of these cases, in this embodiment, when a certain construction is completed in the central construction section 2 or the central construction sections 12 and 13 indicated by oblique lines, the construction is performed on the first outer construction sections 3 and 4 or the first both construction sections. It is performed in the outer section 14 to 17, and the central section 2 or the central section 1
A plurality of different works are carried out from the central construction section 2 or the central construction sections 12 and 13,
-Fourth outer construction section 3-10 or 1st-Fourth outer construction section 1
4 to 29 are sequentially performed in the direction indicated by the arrow.

With reference to FIG. 2, the relationship between each construction section, construction and construction period will be described. In the case of this embodiment, a plurality of different works are pile work, root cutting work, dumping concrete placement, reinforcing steel work, formwork construction work, anchor work, concrete placing,
There are 12 types such as formwork dismantling, backfilling, steel frame construction, floor concrete construction, finishing construction, etc., and the construction area is 11 so that each of those constructions is performed one by one in each construction section.
It is assumed that the construction period is divided into individual construction sections and the construction period is 23 construction periods.

[0009] In the first construction period, pile construction is performed in the central construction section.
In the second construction period, root cutting will be performed in the central construction section, and pile construction will be performed in the first outer construction section. In the 3rd construction period, the dumping construction was performed in the central construction section, and the root cutting work was performed in the 1st outer construction section.
Pile work will be carried out in the second outer construction area. In the fourth construction period, rebar work will be performed in the central construction section, dumping concrete will be installed in the first outer construction section, root cutting will be performed in the second outer construction section, and pile construction will be performed in the third outer construction section. In the 5th construction period, formwork construction work was performed in the central construction section, rebar construction was performed in the first outer construction sections, and the second
Dumping concrete will be placed in both outer sections, root cutting will be performed in the third outer section, and pile construction will be performed in the fourth outer section.

In the sixth construction period, anchor work is performed in the central construction area, formwork construction work is performed in the first outer construction area, rebar construction is performed in the second outer construction area, and discarding is performed in the third outer construction area. Rooting work will be performed in the 4th outer work section and pile work will be performed in the 5th outer work section. In the seventh construction period, concrete is poured in the central construction area, anchor work is performed in the first outer construction area, formwork is built in the second outer construction area, and rebar construction is performed in the third outer construction area. Dumping concrete is placed in the 4th outer section and root cutting is performed in the 5th outer section.
Pile works will be carried out on both outer work sections.

In the eighth construction period, the formwork is dismantled in the central construction section, concrete is cast in the first outside construction section, anchor work is performed in the second outside construction section, and the formwork is built in the third outside construction section. Construction will be carried out, rebar work will be performed in the 4th outer work section, dumping concrete will be installed in the 5th outer work section, root cutting will be performed in the 6th outer work section, and pile construction will be performed in the 7th both work sections.
In the ninth construction period, backfilling was performed in the central construction area, formwork was demolished in the first outer construction area, concrete was cast in the second outer construction area, and anchor work was performed in the third outer construction area.
Perform formwork construction work on both outer work areas, perform rebar work on the fifth outer work area, and throw away concrete in the sixth outer work area.
The excavation work will be performed in the 7th outer work section, and the pile work will be performed in the 8th outer work section.

[0012] In the tenth construction period, steel frame construction is performed in the central construction area, backfilling is performed in the first outer construction area, formwork is dismantled in the second outer construction area, and concrete is poured in the third outer construction area. Perform the anchor work in the 4th outer work section, perform the formwork construction work in the 5th outer work section, perform the reinforcing steel work in the 6th outer work section, and perform the dumping in the 7th outer work section , Eighth
The excavation work will be performed in both outer work sections, and the pile work will be performed in the ninth outer work sections.

In the eleventh construction period, floor concrete construction is performed in the central construction area, steel frame construction is performed in the first outer construction areas, and the second
Perform backfill in both outer sections, dismantle formwork in the third outer section, place concrete in the fourth outer section, perform anchor work in the fifth outer section, and perform anchoring in the sixth outer section. Perform formwork construction work, perform rebar work in the 7th outer work area, perform dumping in the 8th outer work area, perform root cutting work in the 9th outer work area, and in the 10th outer work area Perform pile construction.

In the twelfth construction period, finishing work is performed in the central construction area, floor concrete construction is performed in the first outer construction area, steel frame construction is performed in the second outer construction area, and backfilling is performed in the third outer construction area. , Formwork dismantling in the fourth outer work section, concrete casting in the fifth outer work section, anchor work in the sixth outer work section, formwork construction work in the seventh outer work section, Reinforcement work will be performed in the 8th outer work section, dumping concrete will be installed in the 9th outer work section, root cutting will be performed in the 10th outer work section, and pile construction will be performed in the 11th outer work section.

[0015] Then, from the 13th construction period to the 23rd construction period, as shown in FIG. 3, since the construction is lost every time the construction period progresses from the central construction zone, the construction is sequentially performed from the construction zone where the construction has been lost. After finishing work in the eleventh outer work section, the work is done.

In short, according to the method of the first embodiment,
Since a plurality of different works are sequentially carried out from the central section to both outer sections, heavy equipment, materials and workers are not concentrated in a narrow area. Also, since the heavy equipment, materials, and workers need only be moved to the outer section adjacent to the center section of the construction area, the moving distance of the heavy machines, materials, and workers is reduced. Also, each construction period can be appropriately divided according to the time required for each construction. Further, since different works are performed in all the work sections in the middle of the whole work period, the work period can be shortened even in a construction area having a long side.

FIGS. 4 and 5 show a second embodiment of the present invention. FIG. 4 shows the steps of steel erection, and FIG. 5 shows the structure of steel erection in one construction section. The method of the second embodiment is a method of constructing a steel structure used for a four-story building.
The first floor and the fourth floor are formed as process floors for installing semiconductor manufacturing facilities, and the first floor and the first and third floors of the steel reinforced construction are formed as utility floors for installing machines for assisting semiconductor production. Is the case.

Referring to FIG. 4, the steel frame construction will be described. In the case of the second embodiment, a main frame 31 and a steel frame base 32 on the third floor are constructed in the central construction section 30 in the first construction period shown in FIG. The main frame 31 includes an underground beam 31a as a foundation and a main steel column 3 built on the underground beam 31a.
1b and main steel beams 31c and 31d installed at the middle and top ends of the main steel columns 31b. Steel frame 3
Reference numeral 2 denotes a gantry-side steel column 32a and a gantry-side steel beam 32b provided over the gantry-side steel column 32a. In the secondary construction period shown in FIG. b, a steel frame 33 as the first floor is constructed in the central construction section 30, and the main frame 36 corresponding to the main frame 31 is formed in the first outer construction sections 34, 35 adjacent to the central construction section 30. A steel gantry 37 corresponding to the steel gantry 32 is constructed. The steel frame 33 is a steel column 3 on the frame side.
3a and a gantry-side steel beam 33b passed over the gantry-side steel column 33a. In the third construction period shown in FIG. c, a floor 38 on the third floor and a roof 39 on the fourth floor are constructed in the central construction section 30, and a steel frame base 40 corresponding to the steel frame base 33 is constructed in the first outer construction sections 34 and 35. . In the fourth construction period shown in Fig. d, a soil space 41 is constructed in the central construction section 30, and a floor 42 corresponding to the floor 38 and a roof 43 corresponding to the roof 39 are constructed in the first outer construction sections 34 and 35,
Second outer working section 4 adjacent to first outer working sections 34 and 35
4 and 45, a main frame 46 corresponding to the main frame 36 and a steel frame 4 corresponding to the steel frame 37.
Build 7.

In short, according to the steel frame construction method of the second embodiment, a plurality of different works such as the main frame work, the upper frame work, the floor work, the roof work, and the dirt work are performed from the central work section 30 to the first and second works. Since the steps are sequentially carried out to the outer working sections 34, 35, 44 and 45, in addition to the effects of the first embodiment,
In particular, there is a feature that it is easy to absorb errors in construction accuracy and product accuracy. When considering the main frame construction, the main frames such as the main frames 31, 36, 46, etc., have the first and second outer construction sections 34, 35,
Since the construction is performed in order from 44 to 45, the construction proceeds from one end of the construction area to the other end, or the construction proceeds from both ends of the construction area to the center, It is easy to absorb errors in construction accuracy and product accuracy. The reason is that, regardless of whether the construction proceeds from one end of the construction area to the other end or the construction proceeds from both ends of the construction area to the center, There is a possibility that the error in the direction accuracy and the error in the product accuracy will be concentrated on one section at the other end or the center, which is the final section, and increase. On the other hand, as in the second embodiment, the first and second outer working sections 34,
If the construction proceeds in the order of 35, 44, and 45, the errors in the construction accuracy and product accuracy in the work sections up to that point are distributed to the final two outer work sections, and in one final work section This is because the error in the erection accuracy and the error in the product accuracy are reduced to half of the above.

Referring to FIG. 5, the steel frames 32, 37,
The steel frame base 51 corresponding to 47 is the main frame 31,
The parts assembled to the main frame 50 corresponding to 36 and 46 will be described. A base 50e for mounting the steel frame 51 of the main steel beam 50c in the main frame 50
, A plurality of anchor bolts 52 are erected and connected by welding. Each anchor bolt 52 has a steel frame 5
1, the legs of the gantry-side steel column 51a are fastened by upper and lower nuts 53, 54 mounted on anchor bolts 52.

The part where the steel frame base 55 corresponding to the steel frame bases 33 and 40 is assembled to the main frame 50 will be described. A plurality of anchor bolts 56 are erected on a base 50f of the main frame 50 for mounting the steel frame base 55 of the underground beam 50a. Each anchor bolt 5
6 includes upper and lower nuts 57 in which legs of the gantry-side steel column 55a of the steel gantry 55 are mounted on anchor bolts 56;
It is fastened at 58.

The mounting of the gantry-side steel columns 51a and 55a will be described. Lower nuts 54, 58 are attached to the anchor bolts 52, 56, respectively. Mount side steel column 51
A and 55a manufactured in a predetermined shape at a factory are transported to the site. The legs of the gantry-side steel columns 51a, 55a
It has a plurality of mounting holes formed in a flange protruding annularly on the outer periphery. Each mounting hole has a position corresponding to each anchor bolt 52, 56. At the site, the gantry side steel column 51
a and 55a are lifted by a crane, and are suspended so that the legs of the gantry-side steel columns 51a and 55a correspond to the anchor bolts 52 and 56. The legs of the gantry-side steel columns 51a, 55a are gradually lowered by the operation of the crane, and the mounting holes of the gantry-side steel columns 51a, 55a are individually inserted into the anchor bolts 52, 56. Thereafter, the gantry-side steel columns 51a, 55a are vertically operated by the crane so that the gantry-side steel columns 51a, 55a are vertically raised.
Do the vertical extension of. While the gantry-side steel columns 51a and 55a are vertically raised, the gantry-side steel columns 51a and 55a
Upper nuts 53, 57 are mounted on the anchor bolts 52, 56 projecting above the flange of 55a, and the lower nuts 54, 58 and the upper nuts 53, 57 are connected to the gantry-side steel columns 51a, 55a. Fasten the flange. Thereafter, the levels of the gantry-side steel columns 51a and 55a are measured and accurately extended, so that the gantry-side steel columns 51a and 55a are set to the preset level level S and have an accurate vertical standing posture. Then, the upper and lower nuts 53, 54, 57, 58 are rotated. For example, when the gantry-side steel columns 51a, 55a are lower than the standard level S, the upper and lower nuts 53, 5
4, 57 and 58 are rotated to move upward.
When the gantry-side steel columns 51a, 55a are higher than the standard level S, the upper and lower nuts 53, 54, 57, 58 are rotated to move downward. And the gantry side steel column 51
a, 55a reach the level S, and the upper nut 5
3 and 54 are rotated and the gantry side steel columns 51a and 55a are rotated.
Is fastened with the lower nuts 57 and 58. Thereafter, the crane is opened from the gantry-side steel columns 51a and 55a, and the next gantry-side steel columns 51a and 55a are assembled.

The gantry-side steel beams 32 are attached to the plurality of gantry-side steel columns 51a and 55a that have been assembled as described above.
By mounting the gantry-side steel beams 51b and 55b corresponding to b and 33b, the steel gantry 51 and 55 are assembled. Thereafter, the floors 38 and 42, the roofs 39 and 43, and the floors (not shown) of the second and fourth floors and the floors and ceilings (not shown) of the first and third floors corresponding to those of the soil floor 41 are constructed, and the building is constructed. Is completed.

According to the second embodiment, the underground beams 50a and the main steel beams 50c, which are the foundations of the main frame 50, are used to support the second and fourth floors serving as the process floors. When assembling the 55,
In FIGS. 1 and 55, the anchor-side bolts 52 and 5 provided on the base-side steel columns 51a and 55a at the base 50e of the main steel beam 50c and the base 50f of the underground beam 50a respectively.
6, the upper and lower nuts 53, 54, 57, 58 are tightened by rotating the upper and lower nuts 53, 54, 57, 58, so that the steel frame bases 51, 55 are accurately set to the level S. Is done.

According to the second embodiment, for example, FIG.
If the level of the steel frame base 51 shown in FIG. 5 changes due to the weight of the concrete after the concrete placement of the floor corresponding to the upper floor 38 shown in FIG. , 54 and floor 38
Can be performed after the concrete is solidified. Therefore, according to the second embodiment, it is not necessary to wait for the concrete curing period of the floor concrete, as compared with the conventional case where the steel frame is erected after waiting for concrete placement, curing and solidification of the floor. A steel frame can be built, and the construction of the steel frame can be smoothly sent to the next construction section, further shortening the construction period.

In the second embodiment, the process floor is a semiconductor manufacturing floor. However, a precision machine may be installed on the process floor instead of semiconductor equipment, and the process floor may be a process floor for precision machining. In this case, a machine for assisting precision machining may be installed on the utility floor. Further, each floor may be used as an upper floor of a normal building other than the above. Also, the present invention can be applied to a building other than the fourth floor, for example, a building having two or more floors.

In the first and second embodiments, one type of construction is performed in one construction section. However, if the time required for each construction differs, the time required for one type of construction and the By combining the works so that the required time is as equal as possible, it is possible to perform a plurality of types of works in one work section.

[0028]

As described above, according to the present invention, since a plurality of different works are sequentially carried out from the central section to the outer sections, the heavy machinery, materials and workers are not concentrated in a narrow area. The construction period can be shortened even if the construction area is long on one side.

[Brief description of the drawings]

FIG. 1 is a plan view showing a construction area according to a first embodiment of the present invention divided into a plurality of sections.

FIG. 2 is a table showing a relationship between each construction section, construction work, and construction period according to the first embodiment.

FIG. 3 is a table showing a relationship between each construction section, construction and construction period according to the first embodiment.

FIG. 4 is a process diagram of steel frame construction according to a second embodiment of the present invention.

FIG. 5 is a side view showing a steel structure in one section of the second embodiment.

[Explanation of symbols]

 1,11 Construction area 2-10,12-29 Construction section

Claims (1)

[Claims] 1. A method for constructing a building by a plurality of different works, wherein a construction area is divided into a number of work sections, and when a certain work is completed in a central work section, the certain work is performed on both outer sides adjacent to the central work section. A method of constructing a building characterized by sequentially performing a plurality of different works from the central work area to both outer work areas, such as performing the work in the work area and the next work in the central work area.