JP4057169B2 - Building construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for constructing a building, and more particularly to a construction method and order.
[0002]
[Prior art]
Conventionally, for example, when building a six-story building, as shown by the circle numbers in FIG. 6, after constructing concrete frames such as floors, pillars, walls, etc. of the lowest floor (first floor above ground), Next, the floors were constructed in order from the bottom, such as the second-floor frame, the third-floor frame, and so on.
[0003]
[Problems to be solved by the invention]
However, according to the conventional building construction method described above, since the floors are constructed in order from the bottom, there is a problem that the construction period cannot be shortened.
[0004]
This invention is made | formed in order to eliminate the subject mentioned above, and provides the construction method of the building which can aim at shortening of a construction period.
[0005]
[Means for Solving the Problems]
The building construction method according to the invention of the present application is to build a steel frame from at least one floor to two or more floors to the other floor above the floor, and the construction work of the floor of a certain floor, After constructing the floor of the other floor and the floor of the other floor by repeating in parallel with the construction of the floor of the part of the other floor not corresponding to the part of the certain floor, The construction work for the floor following a certain floor and the construction work for the other floor and the floor following this other floor were performed in parallel.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1
In the building construction method according to Embodiment 1 of the present invention, first, a steel frame is built from at least one floor to two or more floors to another floor above the floor. For example, when building a four-story building on the ground, first, a method of building a steel frame from the first floor to the rise of the third floor (steel column) as the other floor is performed on the ground. In this case, after constructing the floor of the first floor as the certain floor, construct the floor of the third floor as the other floor, and then constructing the first and second floors and constructing the third and fourth floors And in parallel.
In addition, according to the construction method described above, the construction of the other floor is performed before the construction between the certain floor and the other floor is completed. Consider the structural strength between. That is, in the above example, prior to the construction work on the third floor, the seismic reinforcement braces are attached between the steel inter-columns on the first floor and the second floor. Furthermore, since the floor of the other floor is constructed before the wall structure of the floor immediately below the other floor is constructed, there is a possibility that the floor of the other floor may hang down. Therefore, a floor support brace that pulls up the floor of another floor is attached. In the above example, both ends of the floor support brace are attached to, for example, a steel beam and a steel column of the third floor that constitute the floor of the third floor, and the steel beam is pulled up by the floor support brace.
[0007]
Hereinafter, a building construction method according to Embodiment 1 of the present invention will be described in detail with reference to FIGS.
[0008]
First, in the case of building a 6-story building as an example when building a structure with no basement, or when the basement of a building has already been completed and only the ground floor of the building is constructed. This will be described with reference to FIG.
First, the steel structure 1 is constructed by building a steel frame from the first floor as a certain floor to the rise of the fourth floor as the other floor (up to the steel column of the fourth floor). Next, the seismic reinforcement brace 2 is attached to at least some of the plurality of locations where the walls of the first, second, and third floor portions of the steel structure 1 are constructed. That is, the seismic reinforcement brace 2 is attached using a turnbuckle or the like between the steel column 1a and the steel inter-column 1b on the first, second and third floors. The location where the seismic reinforcement brace 2 is attached may be arbitrarily determined according to the seismic design. For example, all locations where the outer wall of the building is constructed and some of the locations where the inner wall of the building is constructed Attach it to the place.
And after constructing the floor 3 of the first floor part, the floor 4 of the fourth floor part is constructed. The floor 3 of the first floor portion is completed by placing concrete after placing the soil between, for example. For example, the floor 4 of the fourth floor is formed by placing concrete after placing a deck plate between the steel beams constituting the floor 4 of the fourth floor of the steel structure 1 or by installing a formwork to form the formwork. It is completed by placing concrete inside.
An example of the structure of the floor 4 of the fourth floor part constructed by placing concrete in the formwork is shown in FIG. In FIG. 2, 4a is a large beam portion, 4b is a small beam portion, 4c is a column portion, 1a is a steel column, and 4d is a main bar (rebar) of the column. In this example, the floor 4 of the fourth floor portion is a floor having an SRC (steel reinforced concrete) structure in which small beams 4b are formed by arranging small beams assembled with steel frames.
In addition, since the floor 4 of the 4th floor part is constructed before constructing the frame such as the pillar and wall of the 3rd floor part, the floor 4 may be drooped. Therefore, a floor support brace 5 is attached in advance so that the floor 4 of the fourth floor portion does not hang down.
The both ends of the floor support brace 5 are attached to the steel beam of the fourth floor and the steel column 1a (rise steel column) of the fourth floor by using a turnbuckle or the like.
The braces 2 and 5 are generally in the form of reinforcing bars, but in order to increase the strength, those in the form of iron plates or other shapes may be used.
Further, the floor 4 of the fourth floor portion may be constructed before the floor 3 of the first floor portion, but the construction of the floor 3 of the first floor portion and the construction of the floor 4 of the fourth floor portion are performed with a time lag. If it is performed at the same time, an object may fall from the fourth floor part, which is dangerous for the installer of the floor 3 of the first floor part.
[0009]
When the construction of the floor 3 of the first floor part and the construction of the floor 4 of the fourth floor part are completed, the construction work of the first floor part and the construction work of the fourth floor part are performed in parallel. In addition, the construction work at this time mainly refers to the construction work of the building other than the floor, such as pillars and walls.
When the construction work for the 1st floor and 4th floor is completed, the construction work for the 2nd floor and the 5th floor are performed in parallel, and further, the construction work for the 3rd floor and the 6th floor Perform the construction in parallel. The construction work at this time mainly refers to the construction work of the frame such as floors, pillars, and walls.
Thus, the construction of the 6-story building is completed. In this case, the 1st, 2nd and 3rd floors are constructed with a steel reinforced concrete structure (SRC structure), the 4th floor (excluding the floor), the 5th and 6th floors are constructed with a reinforced concrete structure (RC structure). Is done. The floor on the fourth floor has an SRC structure in the case of FIG. 2 and a steel-concrete structure (SC structure) in the case of laying the deck plate.
[0010]
Conventionally, construction methods for the underground floor include those shown in FIGS.
In FIG. 3, first, the ground S is excavated as much as the underground space, as shown by arrow (1), and then, as shown by arrow (2), in order from the bottom, the third basement part, the basement 2 This shows how to build the floor part and the first basement part.
In addition, as shown in FIG. 4, the floor of the first floor is constructed first, and then the ground S is excavated by the space of the first basement, as shown by arrow (1). There is also a method of constructing the first floor and then excavating and constructing the second basement floor and the third basement floor as shown by arrows (2) and (3).
[0011]
When the underground floor is constructed by the method shown in FIGS. 3 and 4, the underground floor may be constructed first as shown in FIG. 1 after the underground floor is constructed by the method shown in FIGS.
When constructing an underground floor by the method shown in FIG. 3, first, a steel frame is constructed from the third basement to the rise of the fourth floor, and then, for example, the basement 3 floor and the first floor 3 And the floor 4 of the fourth floor portion may be constructed first, and construction work may be performed in parallel from three floors of the third basement, the first floor, and the fourth floor. In this case, the third basement floor corresponds to a certain floor, and the first and fourth floors above correspond to other floors.
When constructing the basement floor by the method shown in FIG. 4, first, the steel frame is built from the ground up to the rise of the fourth floor, and the construction of the floor 3 of the first floor part and the floor 4 of the fourth floor part are performed. After that, the construction work on the 4th floor and the upper floor and the construction work on the basement floor (excavation, building construction on the basement floor) are performed in parallel. You may make it perform construction construction of a floor part. The excavated soil is discharged from a discharge port provided in advance on a part of the floor of the upper basement floor. In this case, the construction work on the 1st, 2nd, and 3rd floors is performed last for the excavation work of the excavated soil, but the construction work on the 1st, 2nd, and 3rd floors Can be performed in parallel, the construction work on the 1st, 2nd, 3rd floors, the construction work on the 4th, 5th, 6th floors, and the construction work on the 1st, 2nd, 3rd floors in parallel What should I do? In this case, after building a steel frame from one floor (1st floor) to the other floor (4th floor) (until the rise of the 4th floor) and constructing the floor of the certain floor (1st floor), the other floor (4 Of the above floor (the first floor), the floor (2nd floor, 3rd floor) that continues above this certain floor, and the floors (1st basement, 2nd floor, 3rd floor) that follow below The construction work is performed in parallel with the construction work on the other floor (4th floor) and the floors (5th floor and 6th floor) following the other floor.
[0012]
According to the first embodiment, the construction work of a certain floor and the floor following this certain floor and the construction work of the other floor and the floor following this other floor are performed in parallel, so that the construction period can be shortened, Since the seismic reinforcement brace 2 is attached, the earthquake resistance during construction can be improved, and the floor support brace 5 is attached, so that a high-quality building can be constructed without drooping the floors of other floors. become.
[0013]
Embodiment 2. FIG.
In addition, you may make it perform the construction construction of the floor of a certain floor and another floor also in each floor separately.
For example, when building a building similar to FIG. 1, as shown in FIG. 5, the floor portions of the first floor portion and the fourth floor portion are divided into two parts by dividing the center C, and a floor is constructed for each divided area. Once the construction of the floors of the 1st and 4th floors is completed, the construction work of the 1st, 2nd and 3rd floors and the construction work of the 4th, 5th and 6th floors are performed in parallel. I will explain.
First, the steel frame is built in the same manner as in FIG. Then, the floor construction work in the left area of the fourth floor portion in FIG. 5 and the floor construction work in the right area of the first floor portion are performed in parallel. Next, the construction work of the floor in the area on the right side of the fourth floor part in FIG. 5 and the construction work of the floor in the area on the left side of the first floor part are performed in parallel. This completes the construction of the first floor as a certain floor and the fourth floor as another floor. Thereafter, as described above, the construction work for the first, second, and third floors and the construction work for the fourth, fifth, and sixth floors are performed in parallel.
It should be noted that the division of construction work for a certain floor and other floors may be two or more, but if it is divided too much, the work becomes excessively complicated, so it seems that about four divisions are appropriate.
[0014]
Needless to say, the method of the second embodiment can be similarly applied to the construction of a building having an underground floor.
[0015]
According to the second embodiment, the floors of a certain floor and other floors can be constructed more efficiently and quickly, so that the construction period can be further shortened than in the first embodiment.
[0016]
The other floors may be two or more floors that are positioned above each floor at intervals of two or more floors. For example, consider the case where a high-rise building is constructed based on FIG. 1 or FIG. In this case, a certain floor is assumed to be the first floor or the lowest basement floor, and a plurality of other floors located above the certain floor at intervals of two or more floors are assumed. If a certain floor and a plurality of other floors are used as reference floors, and construction work from each reference floor is performed in parallel, a high-rise building can be efficiently constructed. In the above embodiment, the interval between the reference floor and the reference floor is set to be an interval of the third floor, but may be arbitrarily determined as long as it is equal to or more than the second floor (depending on the number of floors, In the case, it seems that the 5-7 floor interval is actually appropriate). In the case of FIG. 4, a certain floor may be defined as a first floor, and a plurality of other floors positioned above the certain floor at intervals of two or more floors may be assumed.
[0017]
Moreover, in the said embodiment, although the steel frame part was constructed | assembled with the SRC structure and the remaining upper floor was constructed with the RC structure, the method of constructing the steel frame for the number of floors of the building to be constructed was described. It goes without saying that the present invention can be applied even when all floors are constructed with an SRC structure, or with an S structure or an SC structure.
Moreover, according to the construction method in which the steel frame portion is constructed with the SRC structure and the remaining upper floor is constructed with the RC structure as in the embodiment, the construction of the upper steel frame can be saved and saved. In addition to saving labor, the structure of the lower floor can be constructed with the SRC structure, so that it is possible to construct a structurally stable building. Such a construction method is suitable for a building in which the lower floor is a commercial space and the upper floor is a residential space.
[0018]
In the embodiment, it has been described that the seismic reinforcement brace 2 is attached to at least some of the plurality of locations where the wall is constructed in the steel structure 1. However, locations other than the location where the wall is constructed are described. A seismic reinforcement brace may be attached to the
What is necessary is just to reinforce the steel structure between one floor and another floor constructed by the steel frame construction method with the earthquake-proof reinforcement brace.
Further, in the embodiment, the floor support brace 5 in such a manner that the floor steel beam is pulled up has been described, but a floor support brace that supports the steel beam beam from below may be used.
Further, the present invention can be realized even when the frame construction has already been completed up to the ground floor (for example, the second floor), by building a steel frame on that and setting another floor. In this case, (the ground intermediate floor + 1st floor) becomes a certain floor and is located above two floors above the certain floor (or above each certain floor at intervals of two or more floors). 2 or more floors) become other floors.
[0019]
【The invention's effect】
According to the invention of the present application, at least from one floor, two or more floors to the other floor above the certain floor are constructed, and the construction work of the floor of a certain floor of the certain floor, and the above in the other floor After constructing the floor of one floor and the other floor by repeating the construction work of the floor at the position not corresponding to a certain part of a certain floor, the floor following the certain floor and this certain floor building construction and, since to carry out in parallel the construction work of the floor following the aforementioned other floor and the other floor can be built more efficiently fast certain floors and other floors floors, shortening of Engineering period Can be achieved .
[Brief description of the drawings]
FIG. 1 is a process explanatory diagram for explaining Embodiment 1 of the present invention;
FIGS. 2A and 2B are a plan view and a front view for explaining details of an example of a floor portion constructed in Embodiment 1 of the present invention. FIGS.
FIG. 3 is a process explanatory diagram for explaining a basement construction method applied to the present invention.
FIG. 4 is a process explanatory diagram for explaining a basement construction method applied to the present invention.
FIG. 5 is a process explanatory diagram for explaining the second embodiment of the present invention.
FIG. 6 is a process explanatory diagram for explaining a conventional building construction method.
[Explanation of symbols]
1 Steel structure, 2 Seismic reinforcement brace, 3rd floor (one floor), 4th floor (other floor), 5 floor support brace.

Claims (1)

At least from one floor to two or more floors to the other floor above the floor, the construction of the floor of a certain part of the floor and the part of the certain floor of the certain floor After repeating the construction of the floor of the part of the position that does not correspond in parallel, constructing the floor of the certain floor and the other floor, then constructing the floor of the certain floor and the floor following this certain floor, and the above A construction method for a building, characterized in that construction work on another floor and a floor following this other floor is performed in parallel .

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