JP3910135B2 - Building construction method and beam member used therefor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building construction method and a beam member used therefor, and more particularly to a construction method for a building constructed across a structure, for example, a railroad, and a beam member used therefor.
[0002]
[Prior art]
In recent years, in order to effectively use existing structures, for example, in the upper space of a railroad track, a building may be built in a form straddling the railroad track or a station building formed on its side. When building such a building, it is desired to increase work efficiency by allowing the work to be performed day and night without hindering the operation of the railway.
[0003]
An example of a construction method for such a building is disclosed in Japanese Patent Laid-Open No. 5-340109. In this construction method, first, a temporary support pile is erected at an appropriate interval on an existing structure, and a temporary girder is erected on the temporary support pile at a position shifted by a predetermined amount from the main column member installation position. . Next, a temporary gantry is constructed on the erection girder, and a foundation pile and a main pillar are provided from the temporary gantry. After that, the temporary girder is moved to the main column member installation position by the moving device to form the girder of the new building, and the new structure is constructed while enabling the operation of the existing structure by constructing the new structure on the temporary gantry. I try to build it.
[0004]
[Problems to be solved by the invention]
However, in the conventional construction method disclosed in the above publication, the temporary girder is installed with a predetermined amount shifted from the position of the main column member installation site, and then moved to the position of the main column member installation to move the building girder. It is said. For this reason, it is necessary to separately provide a moving member for moving the girders. In addition, there is also a problem that it takes time to perform accurate alignment when the erected girder is moved into a new building girder.
[0005]
Therefore, the problem of the present invention is that when building a building in the upper space of the railway track without hindering the operation of the railway, it is not necessary to move the temporary girder and use it as the main girder. The purpose is to simplify the apparatus and improve the efficiency of the work.
[0006]
[Means for Solving the Problems]
The construction method of a building according to the present invention that has solved the above problems is a construction method of constructing a building across a structure in an upper space of a structure installed on the ground. A step of standing a temporary pile at a position avoiding the position of installation of a permanent pile of a building and a position avoiding a structure, and a step of bridging a beam member having an opening formed on the temporary pile. When laying over the temporary pile, the opening in the beam member is arranged at the position where the permanent pile is installed.
[0007]
In the construction method of a building according to the present invention, a beam member is bridged to a temporary pile, but an opening is formed in the beam member, and this opening is disposed at a position where the permanent pile is installed. . For this reason, since a main pile can be provided through an opening part, in order to provide a main pile, it is not necessary to provide a beam member in the position away from a main pile installation position. Therefore, since it is not necessary to move the beam member after providing the main pile, the apparatus can be simplified and the work efficiency can be improved.
[0008]
Here, a step of constructing a work gantry by arranging floor materials as building floors on the beam members, a step of arranging a pile driving device on the temporary gantry after arranging the floor materials, And a step of performing a pile driving operation through an opening formed in the beam member by the apparatus.
[0009]
Thus, a pile driving operation can be performed more easily by providing a floor plate on the beam member and providing a main pile after disposing a pile driving device on the floor plate.
[0010]
Furthermore, it is preferable that the cast-in-place pile is provided by the pile driving device.
[0011]
Thus, as a pile, providing a cast-in-place pile is advantageous in terms of construction. Here, when the cast-in-place pile is provided, an appropriate construction method such as a reverse circulation drill method, an earth drill method, an all casing method, or the like can be suitably used.
[0012]
On the other hand, a beam member according to the present invention that has solved the above-mentioned problems is a beam member used in the construction method for a building, and includes a straight portion and an opening formed at an end portion of the straight portion. It is.
[0013]
By using such a beam member, it is possible to construct the building as described above, and as a result, it is possible to simplify the apparatus and increase the efficiency of the work.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
[0015]
FIG. 1 is a process diagram showing a process of a building construction method according to the present invention. In the building construction method according to the present embodiment, the building construction is performed using a tower crane. If the rough flow at the time of building a building is demonstrated along the process drawing shown in FIG. 1, the foundation pile for installing a tower crane will be provided first (S1). Next, the construction pile of the floor girder used as a temporary pile is constructed in the building construction part (S2). A tower crane is installed in the position which provided the tower crane foundation pile in parallel with the construction of the support pile of a floor girder (S3).
[0016]
Once the support piles for the floor girder and the tower crane have been installed, install the girder for the first floor, which is a beam member (S4). A stake is provided (S5). When installing the main pile, the first floor is used as a work gantry. After providing the main pile, the main pillar is installed on the main pile (S6), and after the main pillar is installed, the second floor portion is constructed (S7). Then, the tower crane is removed (S8), and the upper floor is constructed by an appropriate construction technique. When a building is constructed along this flow, in the building construction method according to the present embodiment, there is a characteristic process between the installation of the first floor girder and the installation of the main pillar.
[0017]
Next, the characteristic process in the construction method of the building which concerns on this embodiment is demonstrated still in detail with reference also to FIGS.
[0018]
First, the foundation of the tower crane for installing the tower crane is provided. In this embodiment, as shown in FIG. 2, as a structure, a building is constructed across a station building 1 (1A, 1B, 1C) in which a plurality of, for example, eight lines R1 to R8 are formed. . As shown in FIGS. 2 and 3, the foundation of the tower crane is provided at a tower crane installation position P1, which is a position separated from the station building 1B in the formation direction of the track R4. As shown in FIG. 3, a roof member 2 is attached to the station building 1. Further, trains T, T... Traveling on the rails R1 to R8 are shown by phantom lines in FIG. 3 and by solid lines in FIG.
[0019]
The tower crane 20 (FIG. 5) is installed using the crawler crane 10 disposed further outside the outermost track R8. The crawler crane 10 includes a traveling unit 11 and a boom 12. A wire 13 is attached to an upper end portion of the boom 12 via a pulley (not shown), and a tower crane foundation member 15 serving as a foundation of the tower crane 20 can be suspended by the wire 13.
[0020]
The tower crane foundation member 15 is carried in the vicinity of the crawler crane 10. The tower crane foundation member 15 carried in is sequentially transferred by the crawler crane 10 to the tower crane installation position P1. In this manner, the tower crane foundation member 15 is assembled at the tower crane installation position P1, and the tower crane 20 shown in FIGS.
[0021]
The installed tower crane 20 includes a mast 21. A main body 22 having an operation chamber is provided on the mast 21, and a boom 23 is attached to the main body 22. A support member 24 is attached to the tip of the boom 23, and a wire 25 is suspended by the support member 24. A hook 26 is attached to the lower end of the wire 25. The tower crane 20 is used to provide beams, floor boards, and the like for the first and second floor portions of the building. When the installation of the tower crane 20 is completed, the crawler crane 10 is removed.
[0022]
At the same time as installing the tower crane 20 as described above, as shown in FIG. 4, the station building 1 is provided with a temporary pile 30 made of NS eco-pile (a steel pipe pile in which a spiral blade is welded to the tip of the steel pipe) at a predetermined position. . The temporary pile 30 is a position that avoids the permanent pile installation positions P2, P2... Shown in FIG. 7 and avoids the tracks R1 to R8, and is a predetermined temporary installation between the adjacent adjacent pile installation positions P2, P2. It is provided at each pile installation position P3, P3. When the temporary piles 30 are provided, as shown in FIG. 4, protective walls 31 and 32 are provided in the station building 1 in order to prevent injuries and the like of train users. Among these, an all-round rotary excavator 33 for providing the temporary pile 30 is provided inside the first protective wall 31. In addition, a stock portion 34 is formed on the inner side of the first protective wall 31 to lean the pile members 30 </ b> A, 30 </ b> A, 30 </ b> A driven as the temporary pile 30. Further, a reinforcing member 35 for reinforcing the installation state of the all-round rotary excavator 33 is provided at a position below the all-round rotary excavator 33. On the other hand, a power supply device 36 for supplying electricity to the all-round rotary excavator 33 is provided inside the second protective wall 32.
[0023]
When providing the temporary pile 30, the pile member 30 </ b> A is fixed to the central portion of the all-round rotary excavator 33, current is supplied from the power supply device 36 to the all-round rotary excavator 33, and the pile member 30 </ b> A is rotated as it is. Buried underground. The temporary pile 30 is provided by driving several pile members 30A and joining them in the height direction. The temporary pile 30 is provided so as to protrude to a position above the roof member 2. When the temporary pile 30 is provided at a position where the roof member 2 is, a through hole is appropriately formed in the roof member 2.
[0024]
When the tower crane 20 and the temporary piles 30, 30... Are provided, the beam member 40 is suspended by the tower crane 20 and is laid over the upper ends of the temporary piles 30, 30. As shown in FIG. 5, the beam member 40 includes linear portions 41, 41... And rectangular portions 42, 42. Among these, the rectangular parts 42, 42... Are arranged at positions corresponding to the main pile setting positions P2, P2,. The rectangular portion 42 is formed with a rectangular opening 43. The opening 43 has an opening area larger than the cross-sectional area of the main pile and the main pillar having the same diameter as the main pile. For this reason, the main pile can be provided from above through the opening 43, and the standing main pillar can penetrate the opening 43. .. Are sequentially bridged over the temporary piles 30, 30... To form a beam 45 as shown in FIG.
[0025]
When the beam 45 is formed, the floor board 50 is formed as shown in FIGS. The floor board 50 is formed by sequentially spreading the lining board 51 which is the floor material of the present invention suspended by the tower crane 20. At this time, as shown in FIG. 8, the cover plate 51 is not laid down at a position corresponding to the opening 43 of the beam 45, and the opening 43 is maintained in a state of penetrating in the vertical direction. If the floor board 50 is formed, as shown in FIG. 9, temporary piles 52 and 52 are erected at a position where the installation work of the permanent piles is performed.
[0026]
After that, a permanent pile will be provided as a pile for a newly constructed building. When the main pile is provided, the floor board 50 is used as a work gantry. The permanent piles are provided at the permanent pile installation positions P2, P2,... Shown in FIG. In providing the permanent pile, first, temporary piles 52 and 52 are erected around the position where the permanent pile is to be constructed, as shown in FIG. When the temporary piles 52 and 52 are erected, as shown in FIG. 10, the all-round rotary excavator 33 is installed on the floor board 50 so as to surround the opening 43. This all-around rotary excavator 33 corresponds to the pile driving device of the present invention, and the one used when the temporary pile 33 is provided is used as it is. However, other all-around rotary excavators can also be used. Since the installation work of the main pile performed using the all-around rotary excavator 33 is performed on the floor board 50 as a work gantry, it can be performed even while the train is generating power.
[0027]
When the all-around rotary excavator 33 is installed, the mouth tube 53 is held by the all-around rotary excavator 33. The mouth tube 53 is disposed through the opening 43 formed in the beam 45. In this state, by driving the all-round rotary excavator 33, the mouth pipe 53 is buried in a shallow portion of the ground. When embedding the mouth pipe 53, although not shown, an opening is appropriately formed in advance at a position where the mouth pipe 53 in the roof member 2 of the station building 1 is allowed to pass.
[0028]
When the mouth pipe 53 is buried, as shown in FIG. 11, an excavation arrow warehouse 54 is erected on the all-round rotary excavator 33. Although the Yakura 54 is a self-propelled type, the tower crane 20 is used when installing the Yakura 54 on the floor board 50. In addition, after providing the main pile and the main pillar in one place, it is used to move to another position and to provide the main pile and the main pillar. It is performed by Yakura 54 running on 50. The kelly bar 55 is suspended from the Yakura 54 and extends downward through the all-round rotary excavator 33. A rod tube 56 is attached to the lower end of the kelly bar 55. The kelly bar 55 is rotated by the all-around rotary excavator 33, and the rod tube 56 is rotated together with the kelly bar 55.
[0029]
A KNAP excavator (reverse expansion excavator) 57 is attached to the lower end of the rod tube 56. The ground is excavated by the KNAP excavator 57. After excavating the ground, the bottom is expanded and a reinforced steel rod (not shown) is built, and then concrete is cast and a permanent pile is formed by cast-in-place piles. On the other hand, a protective tube 58 is provided around the rod tube 56 to prevent a train passenger or the like from touching the rotating rod tube 56 from the outside.
[0030]
In this way, when the permanent pile is provided by the cast-in-place pile, the permanent pillar of the building to be built above the permanent pile is erected. Until now, the floor board 50 used as a work gantry is used as it is as a floor board of a building. For this reason, the operation | work which removes a work gantry becomes unnecessary. Moreover, work can be performed simultaneously on the upper and lower sides of the floorboard. The main pillar extends upward through the opening 43 formed in the beam 45. And after making the standing permanent pillar penetrate the opening 43, the opening and the permanent pillar are fastened with a fastener or the like. Thereafter, construction of the second floor or higher floor is performed by an appropriate construction method, and a building is constructed. In that case, the tower crane 20 becomes unnecessary, and therefore the tower crane 20 is removed.
[0031]
Thus, according to the construction method of the building concerning this embodiment, a temporary pile, a permanent pile, a permanent pillar, etc. are provided avoiding rails R1-R8 which a train runs. Moreover, when providing these, it is performed using the crawler crane 10 and the tower crane 20, or using the perimeter rotary excavator 33 etc. which were installed on the beam 45 and the floor board 50. FIG. For this reason, since construction can be continued even during train power generation, the construction period can be significantly shortened compared to construction that is carried out at night when train power generation stops. it can.
[0032]
Moreover, in the construction method of the building which concerns on this embodiment, the beam 45 is provided using the thing in which the opening part 43 was formed as the beam member 40. FIG. Since this opening 43 is arranged at the permanent pile installation position P2, when the beam 45 is formed so as to be supported by the temporary piles 30, 30,... A pillar can be provided. Therefore, since it is not necessary to move the beam member 40 after the main pillar is provided, a moving device for moving the beam member 40 and its moving work are not necessary. Therefore, the apparatus can be simplified and the work efficiency can be improved accordingly.
[0033]
The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, in the above embodiment, the permanent pile is provided by the cast-in-place pile method by the so-called reverse circulation drill method, but the permanent pile may be provided by another cast-in-place pile method such as the earth drill method or the all casing method. it can. When providing the main pile, not only the cast-in-place pile method, but also, for example, a driven pile method or an embedded pile method can be used. Moreover, in the said embodiment, although the track | line is illustrated as a structure, it is not restricted to this, For example, other structures, such as a road, are also contained. Furthermore, an artificial ground may be constructed in the sky while utilizing a low-rise floor for urban redevelopment and the like, and the low-rise floor in such a case is also included in the structure of the present invention.
[0034]
Moreover, in the said embodiment, although the pile driving operation was performed using the all-around rotary excavator 33 provided on the floor board 50, for example, before or after providing the floor board 50, a tower is formed through the opening 43 of the beam 45. It can also be set as the aspect which performs the pile driving | operation work using a crane. Furthermore, in the said embodiment, although the rectangular opening part is formed in the rectangular part 42 of the beam member 40, this can also be made into a circular opening part. Of course, instead of the rectangular portion 42, a circular portion may be used. On the other hand, in the beam member 40 in the said embodiment, although the linear part 41 and the rectangular part 42 are united, it can also be set as the aspect which joins both at the time of construction by making this into another member.
[0035]
On the other hand, in the above-described embodiment, as shown in FIG. 4, when the temporary pile 30 is provided, the entire circumference rotary excavator 33 is used, but instead of the rotary excavator 33, as shown in FIG. 12. A low noise and compact vibro hammer 60 may be used. In the embodiment shown in FIG. 12, a vibro hammer 60 is used which is suspended through a hook 26 by a wire 25 of a tower crane through a through hole formed in the roof member 2. The vibro hammer 60 includes a gripping portion 61 that grips the added temporary pile 71 and a drive portion 62 that moves the gripping portion 61 up and down while applying vibration. Then, the holding part 61 is moved up and down while moving the holding part 61 while moving the holding part 61 while applying the vibration to the holding part 61 while holding the temporary pile 71 by the holding part 61 and driving the temporary pile 71 into the ground. . The temporary piles 71 to be driven in this way are sequentially driven to form the temporary piles 72 by arranging the temporary piles 71 in the vertical direction. When forming the temporary pile 72, the additional temporary pile 71 disposed on the uppermost side is reinforced by the reinforcing member 73. Also as such an aspect, the temporary pile 72 can be formed suitably.
[0036]
【The invention's effect】
As described above, according to the present invention, when a building is constructed in the space above the railway track without hindering the operation of the railway, it is not necessary to move the temporary girder and use it as the main girder. can do. Therefore, it is possible to simplify the apparatus and improve work efficiency.
[Brief description of the drawings]
FIG. 1 is a process diagram showing a process of a building construction method according to the present invention.
FIG. 2 is a plan view of a state where a tower crane is provided.
FIG. 3 is a front view of a state in which a tower crane is provided.
FIG. 4 is a side view of a state where temporary piles are provided.
FIG. 5 is a plan view of a state in which a beam is provided.
FIG. 6 is a front view of a state in which a beam is provided.
FIG. 7 is a plan view showing the relationship between the installation positions of the permanent pile and the temporary pile.
FIG. 8 is a plan view of a state where a floor board is provided.
FIG. 9 is a front view showing a state in which a floor board is provided.
FIG. 10 is a side view showing a state in which a mouth pipe is installed when a main pile is provided.
FIG. 11 is a side view showing excavation when a main pile is provided.
FIG. 12 is a side view showing another example of forming a temporary pile.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Station building, 2 ... Roof member, 3 ... 10 ... Crawler crane, 11 ... Traveling part, 12 ... Boom, 13 ... Wire, 15 ... Tower crane foundation member, 20 ... Tower crane, 21 ... Mast, 22 ... Main-body part , 23 ... Boom, 24 ... Support member, 25 ... Wire, 26 ... Hook, 30 ... Temporary pile, 30A ... Pile member, 31, 32 ... Protective wall, 33 ... All-round rotary excavator, 34 ... Stock part, 35 ... Reinforcing material 36 ... Power supply device 40 ... Beam member 41 ... Linear part 42 ... Rectangular part 43 ... Opening part 45 ... Beam 50 ... Floor board 51 ... Ladding board 52 ... Temporary pile 53 ... Mouth Pipe, 54 ... Yakura, 55 ... Kelly bar, 56 ... Rod pipe, 57 ... KNAP excavator, 58 ... Protective pipe, 60 ... Vibro hammer, 61 ... Holding part, 62 ... Drive part, 71 ... Additional temporary pile, 72 ... Temporary Pile, 73 ... reinforcing member, P1 ... Work lane installation position, P2 ... this 設杭 installation position, P3 ... temporary pile installation position, R1~R8 ... rail.

Claims (4)

In the construction method of the building in which the building is constructed across the structure in the upper space of the structure installed on the ground,
Avoiding the main pile setting position of the building at the construction position of the building, and standing the temporary pile at a position avoiding the structure;
Bridging the beam member in which the opening is formed to the temporary pile, and
A construction method for a building, wherein when the beam member is bridged to the temporary pile, the opening in the beam member is arranged at the position of the permanent pile installation. Arranging a floor material to be a floor plate of the building on the beam member and constructing a work gantry;
After placing the flooring, placing a pile driving device on the temporary gantry,
A step of performing a pile driving operation through the opening formed in the beam member by the pile driving device;
The construction method of the building of Claim 1 containing. The building construction method according to claim 2, wherein a cast-in-place pile is provided by the pile driving device. It is a beam member used for the construction method of the building of any one of Claims 1-3,
A beam member used for construction of a building, comprising a straight portion and an opening formed at an end of the straight portion.

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