JP4200517B2 - Unit metal underground structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention factory manufactures a metal underground unit composed of a wall, a ceiling, and a floor structure each having a steel frame as a core and a metal outer plate such as a steel plate fixed to the outside thereof. Install multiple units into the construction site and install them in the state where all or part of them are buried in the ground and join them together. Installed in a state where the whole or part of the building is buried under the floor or in the garden or under the carport, etc., and is connected to each other to expand the living space and secure storage space for various items. The present invention relates to a unit-type metal underground structure such as a basement constructed as described above.
[0002]
[Prior art]
As this type of unit-type metal underground structure, the present inventor has developed a wall structure, a ceiling structure, and a floor structure in which a metal outer plate is fixed to the outside of a plurality of core steel frames. In the factory production stage, the metal basement unit that is constructed in a □ -type ramen structure is divided along the horizontal plane in the middle in the vertical direction of the wall structure. Two divided units are carried into the construction site in a unit-separated state, and two divided units are divided into two units on the concrete foundation formed at the bottom of the excavation hole in the construction site. Assembling a plurality of metal underground units of □ -type ramen structure in a row in the short-side direction by fixing and joining with the ends of the cross sections along the horizontal plane of the We have already proposed a technology that makes it possible to construct a basement (an example of an underground structure) with a seismic wall structure with a predetermined length in the long side direction by joining adjacent units of metal underground units to each other. Application No. 2002-50505).
[0003]
Further, the present inventor has a structure of a □ type ramen structure in the short side direction by assembling a wall structure, a ceiling structure and a floor structure in which a metal outer plate is fixed to the outside of a plurality of core steel frames. The metal underground unit is divided into a horizontal plane in the middle in the vertical direction of the wall structure and a vertical plane in the middle in the width direction of the ceiling structure and the floor structure. A total of four divided units, one each for the top and bottom and left and right, each configured in a ramen structure, are brought into the construction site in a unit-separated state, and the four divided units in each group are connected to the construction site. On the concrete foundation formed at the bottom of the excavation hole, the horizontal plane of each divided unit and the end of the split cross section along the horizontal plane are fixedly joined to each other. A basement of a seismic wall structure with a predetermined length in the long side direction (underground structure) by assembling base units made of metal in a row and joining adjacent units of the assembled metal base units to each other Have already been proposed (Japanese Patent Application No. 2002-242694).
[0004]
Each of the unit-type metal underground structures proposed by the present inventors having the above-mentioned structure is manufactured at the factory as a single box-type underground unit with a □ -type ramen structure, which is a finished product of the underground structure, Compared to the conventional general unit-type underground structure in which a single unit of this box-type underground unit is carried as it is to the construction site with a truck, etc., unloaded with a crane, etc., and installed underground. In addition to reducing the size and weight of the division unit manufactured at the factory, it is also possible to reduce the bulk during transportation from the factory to the construction site. Safe and economical transportation with a small truck and easy and safe operation with a small crane In addition, such as unloading economically, installation work becomes possible, and so on, all the processes from factory production to transportation and completion of construction at the construction site are consistently boxed. As compared with the case of handling a type underground unit alone, the effect of improving the remainder there economic effects and construction efficiency to compensate for the increase in the construction costs associated with bonding steps increase in construction site is obtained.
[0005]
[Problems to be solved by the invention]
By the way, in the unit type metal underground structure previously proposed by the present inventor as described above, a metal outer plate is used as a rust prevention and anticorrosion measure that is indispensable with the use of metal materials such as steel frames and steel plates. Since the thick film type semi-permanent anticorrosive anticorrosion coating was applied to the entire outer surface of the slab, not only a very expensive special coating material had to be used, but also the entire outer surface of each split unit. It is one of the causes of the increase in the production cost of the division unit at the factory, which requires high technology and a great deal of time in the painting work to form a uniform thickness coating uniformly. The problem of limiting the promotion of the construction cost reduction effect accompanying the introduction remained.
[0006]
The present invention has been made on the basis of the above-described knowledge, and eliminates the need for a thick film type semi-permanent anticorrosion and anticorrosion coating, and makes the construction on site extremely simple, thereby significantly reducing the total construction cost. It aims at providing the unit type metal underground structure which can ensure the outstanding rust prevention and anti-corrosion performance, and can achieve the remarkable improvement in durability, aiming.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a unit-type metal underground structure according to the present invention is an assembly of a wall structure , a ceiling structure, and a floor structure in which a metal outer plate is fixed to the outside of a plurality of core steel frames. The horizontal base or ceiling structure and floor structure in the middle in the vertical direction corresponding to one-half of the height of the wall structure of the metal underground unit constructed in a □ -type ramen structure in the short side direction It is divided along the vertical plane of the intermediate portion in the width direction of the two, upper and lower divided units configured in a substantially U-shaped ramen structure at the stage of factory production , or the horizontal dimension of the horizontal plane and the ceiling structure and floor structure respectively vertical and horizontal two configured in a substantially L-shaped rigid frame structure is divided along a vertical plane of polarized positions on one side in the width direction than one-minute stage of plant production in total four One of the divided units as one set, the plurality of sets State abutting the cutting face ends of a plurality of divided units between the wellbore bottom which is formed in the concrete foundation along a horizontal plane or the horizontal and vertical surfaces of each divided units in each each set and carried to the construction site knit separated state By fixing and joining, a single unit of a plurality of metal underground units of □ type ramen structure is assembled in a row in the short side direction, and adjacent units of the plurality of assembled metal underground units are mutually connected. It is a unit-type metal underground structure constructed into a seismic wall structure with a predetermined length in the long side direction by joining, and the concrete structure at the construction site is placed outside the wall structure in each divided unit. previously fixed support of the wall structure an outer surface to be formed concrete covering portion for rust corrosion of concrete設用metal plate of the factory manufacturing stage by setting And it is characterized in that is.
[0008]
According to the present invention having the above-described configuration, an underground unit constructed with a □ -type ramen structure in the short side direction and a predetermined length of the earthquake-resistant wall structure in the long side direction in the completed state of the wall structure. In the factory production stage, it is divided into a horizontal plane in the vertical middle corresponding to half the height dimension or a vertical plane in the middle in the width direction of the ceiling structure and floor structure. Divided into two upper and lower divided units of a ramen structure , or along a vertical plane at a position offset to one side in the width direction from one half of the width of the horizontal plane and the ceiling structure and floor structure. At the factory production stage, the L-shaped ramen structure is composed of a total of four divided units, two on the top and left and two on the left and right. This makes it possible to reduce the size and weight of the unit and transport it from the factory to the construction site. Smaller in time and can be reduced in size Easily by safe and economical transportation and small cranes by rack, down safe and economical load, are possible installation construction, transportation from the factory production, consistently over the entire process up to build complete construction site □ Compared to the case of handling a box-type unit with a rigid frame structure as it is, a comprehensive economic effect and an improvement in construction efficiency can be obtained.
[0009]
In addition, after construction, the concrete is placed between the metal plate for concrete placement that is fixed and supported in advance at the factory production stage on the outside of the wall structure in each divided unit and the outer surface of the wall structure. It is possible to form a concrete coating with excellent anti-corrosion and anti-corrosion performance on the outer surface of the wall structure by performing extremely simple on-site construction. Thick film type semi-permanent anticorrosion protection that requires the use of expensive materials and spends a lot of time on the entire outer surface of the metal outer plate of the wall structure. The unit manufacturing cost can be significantly reduced.
[0010]
In addition, when forming a concrete coating for rust and corrosion prevention on the outer surface of the wall structure, a earth retaining work including a metal sheet for earth retaining is preliminarily constructed around the planned construction site, and the metal sheet for earth retaining is constructed. It is conceivable that concrete is placed between the outer surface of the wall structure in the later underground unit to form a predetermined concrete covering, but in this case, for example, the loam layer often found in the Kanto region When constructing an underground structure in a geological area where there is no concern about landslides due to excavation or where there is sufficient room for the site area, a concrete covering is formed even though open cuts are sufficient. In order to do this, it is necessary to construct earth retaining works that cause an increase in construction costs. On the other hand, in the present invention, since the concrete placement metal plate is fixedly supported in advance on the outside of the wall structure in each divided unit, for example, a region having a geology such as a loam layer in the Kanto region or a site area When building in a place where there is enough room and can be handled by a simple open-cut method, concrete construction for anticorrosion and corrosion prevention is achieved while reducing the construction cost by omitting earth retaining work. Can be reliably and easily formed, and it is possible to further promote the reduction of the total construction cost in combination with the reduction of the unit manufacturing cost described above.
[0011]
As an underground structure targeted by the present invention, as described in claim 2, an underground garage constructed in a state where all or part of the underground structure is embedded in the ground, or as described in claim 3, Any of the basements constructed in a state where the whole or a part thereof is buried in the ground may be used. Here, in the case of targeting the basement, the metal outer plates of the wall structure and the ceiling structure in the plurality of divided units constituting each metal underground unit from the viewpoint of enhancing the habitability and long-term storage of the stored articles It is desirable to form a heat insulating layer in each space between the inner plate attached to the inside of the core material steel frame.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Figure 1 is a schematic side view showing a metallic underground garage construction completed state of di which is one example of a unitary metallic underground construction according to the present invention, FIG. 2 is a plan view, FIG. 3 is X-X in FIG. 1 It is a longitudinal front view along the line, standardized dimensions and shape at the factory, manufactured to the same specifications and the same structure, and assembled in a □ type ramen structure in the short side direction at the construction site The steel (steel) underground unit 1 is installed and fixed in a line on the solid solid foundation 13 formed at the bottom of the underground excavation hole so that the short side direction thereof is continuous, and the adjacent steel underground unit 1, 1... Are joined to each other in a watertight state, and the end wall 11 is fixedly joined to the opening end of the steel mold underground unit 1 at one end in the row direction, and is made of steel at the other end in the row direction. Leave the open end of the mold base unit 1 open By configuring the vehicle doorway E leading to the inclined road surface SR, steel underground garage UG of shear wall structure is constructed in the depth direction has a predetermined depth dimension D (the longitudinal direction).
[0013]
A plurality of steel underground units 1... Constituting such a steel underground garage UG are each half of the height dimension H of the wall structure 2W, as shown in FIGS. Divided into two upper and lower parts by a line L1 along the horizontal plane of the corresponding intermediate height h (= H / 2) , and divided into two upper and lower divided units 1U and 1D having a substantially U-shaped ramen structure at the stage of factory production. It is configured. Among them, as shown in FIG. 3, the upper divided unit 1U is composed of two opposing dividing wall structures 2Wu, 2Wu and one ceiling structure 2C connecting them, and the lower divided unit 1D is The two divided wall structures 2Wd, 2Wd facing each other and one floor structure 2F connecting them, and the upper and lower divided units 1U, 1D having such a configuration are separated from each other along the horizontal plane at the construction site. A single unit of the steel underground unit 1 with a □ -type ramen structure is assembled and configured in the short side direction by being fixedly joined in a state where the portions are butted.
[0014]
The dividing wall structures 2Wu and 2Wd, the ceiling structure 2C, and the floor structure 2F in the upper and lower divided units 1U and 1D are respectively arranged at appropriate pitches such as channel steel or H-shaped steel as clearly shown in FIG. A metal outer plate 4 such as a steel plate is fixed to the outer alanged portion 3a ... of the core steel frame 3 ... and the core material steel frame 3 of the divided wall structures 2Wu, 2Wd in the upper and lower divided units 1U, 1D. 3, metal bonding plate members 8u and 8d are fixed to each other by welding or the like, and as shown in FIG. 5, the plate members 8u and 8d are provided with a waterproof sealing material therebetween. By tightening 9 with bolts and nuts 10, the upper and lower divided units 1U and 1D can be fixedly joined in a state where the end portions of the divided wall structures 2Wu and 2Wd are butted.
[0015]
Further, as shown in FIG. 6, on the outside of the divided wall structures 2Wu and 2Wd in the upper and lower divided units 1U and 1D, the divided wall structures are connected via connecting members 5 and 5 such as reinforcing bars or angle steel materials. Metal plates 6 and 6 for placing concrete, such as iron plates having the same size as the bodies 2Wu and 2Wd, are fixed and supported in advance in parallel with the dividing wall structures 2Wu and 2Wd at the stage of factory production. After constructing an underground garage UG with a □ -type ramen structure in the short side direction and a seismic wall structure in the longitudinal direction, the divided wall structures 2Wu and 2Wd in the upper and lower divided units 1U and 1D of each underground unit 1. By placing concrete between the concrete placing metal plates 6 and 6 facing each other, the rust and corrosion preventing concrete covering portions 7 and 7 are formed on the outer surfaces of the divided wall structures 2Wu and 2Wd. It has been made.
[0016]
The end wall 11 is also configured by fixing a metal outer plate such as a steel plate to the outside of a core steel frame such as channel steel. Similar to the divided units 1U and 1D, the concrete placement metal plate 6a is fixed and supported in advance via the connecting member 5a on the outside of the end wall 11, and the concrete placement after the construction of the underground garage UG A concrete covering portion 7a for rust and corrosion prevention is formed on the outer surface.
[0017]
As described above, at the factory production stage, each of the divided units 1U and 1D has a substantially U-shaped ramen structure, and the divided unit itself can be reduced in size and weight, and when transported to a construction site, for example, FIG. As shown in FIG. 5, the overall unit volume (as compared to the case of a single box type unit) is increased by shifting each divided unit by the thickness of the wall structure, the ceiling structure, and the floor structure. It is possible to reduce the height and width of the vehicle by using a small truck, and to overcome the limit height on road transportation and the difficulty and safety of narrow road transportation. Further, it is possible to use a small crane even when also built way work when unloading the filter paper from the track construction site, the obstacle unit lifted by a crane is present around the scene, such as a wire There is no interference or swinging under the influence of wind or the like, and it is possible to carry out unloading or construction work easily and safely.
[0018]
On the other hand, after the construction of the underground units 1..., The concrete placing metal plates 6 and 6 and the wall structure fixed and supported in advance at the factory manufacturing stage outside the wall structures 2Wu and 2Wd in the divided units 1U and 1D. The concrete covering parts 7 and 7 having excellent anticorrosion and anticorrosion performance are provided on the outer surface of the wall structures 2Wu and 2Wd only by performing a very simple field work of placing concrete between the outer surfaces of the bodies 2Wu and 2Wd. Therefore, when the upper and lower divided units 1U and 1D are manufactured at the factory, an expensive material is provided over the entire outer surface of the metal outer plates 4 and 4 of the wall structures 2Wu and 2Wd in each divided unit. It is possible to omit the painting work for the thick film type semi-permanent anticorrosion and corrosion prevention that requires the use of high-technique and spends a lot of time, and the unit manufacturing cost can be significantly reduced.
[0019]
In addition, for example, loam layers often found in the Kanto region, where there are geological features where there is no concern about landslides due to excavation, or where there is sufficient space in the site area, a metal for retaining earth around the planned construction site The earth retaining work such as building a board is omitted, and the means of constructing the underground garage UG by simply open-cutting is adopted, but even in the case of such construction means by open-cutting, the upper and lower divided units 1U, 1D By simply placing concrete between the concrete placement metal plates 6 and 6 fixed and supported in advance on the outside of the wall structure 2Wu and 2Wd and the outer surface of the wall structure 2Wu and 2Wd, a predetermined rust prevention is achieved. Corrosion-proof concrete coatings 7 and 7 can be formed reliably and easily, and combined with the reduction of site construction costs due to the omission of earth retaining work and the reduction of unit production costs mentioned above It is possible to achieve a significant reduction of the use.
[0020]
In the above-described embodiment, the two approximately upper and lower parts manufactured at the factory are divided by a line L1 along a horizontal plane having an intermediate height h corresponding to one half of the height dimension H of the wall structure 2W. Although the single unit of the underground unit 1 is assembled and constructed by joining the divided units 1U and 1D having the character-shaped ramen structure, instead of this, for example, as shown in FIG. L1, the ceiling structure 2C, and the floor structure 2F are divided by a line L2 along a vertical plane at a position deviated to one side in the width direction from one-half of the width dimension W of the ceiling structure 2C and the floor structure 2F. Four division units 1UL, 1UR, 1DL, 1DR having a substantially L-shaped ramen structure are manufactured at the factory, and the unit of the underground unit 1 is assembled by joining these four division units 1UL, 1UR, 1DL, 1DR. May be applied to shall also although not shown, the ceiling structure 2C and the width direction intermediate portion of the floor structure 2F are divided only by the line L2 along the vertical plane fabricated left two plants You may apply to what the single unit of the underground unit 1 is assembled by joining the division | segmentation unit of a substantially U-shaped ramen structure.
[0021]
Moreover, although the underground garage was set as the construction target in the above-described embodiment, a basement for the purpose of expanding the living space and securing and expanding the storage space for various articles may be the building target. In this case, the comfortability and storage in the space between the metal outer plate 4 of the wall structure 2W (2Wu, 2Wd) and the ceiling structure 2C and the inner plate (not shown) attached to the inside of the core steel frame 3 In order to improve the long-term storage stability of the article, it is desirable to form a heat insulating layer for each.
[0022]
【The invention's effect】
As described above, according to the present invention, the unit can be reduced in size and weight by constituting a plurality of divided units having a substantially U-shaped or substantially L-shaped ramen structure at the stage of factory production. It is possible to reduce the bulk during transportation, safe and economical transportation with small trucks, and easy, safe and economical unloading and installation with small cranes are possible. From factory production to transportation, construction on construction site Compared to the case where the box-type unit is handled as it is throughout the entire process up to completion, a comprehensive economic effect and an improvement effect of construction efficiency can be obtained.
[0023]
In addition, after the construction of the underground unit, concrete is struck between the concrete placement metal plate that is fixed and supported in advance at the factory production stage on the outside of the wall structure in each divided unit and the outer surface of the wall structure. It is possible to form a concrete coating with excellent rust and corrosion prevention performance on the outer surface of the wall structure simply by performing an on-site construction. The coating work for the thick film type semi-permanent anticorrosion and corrosion prevention for the entire outer surface of the outer plate can be omitted, and the unit manufacturing cost can be significantly reduced. In particular, the construction of earth retaining works is omitted when building in areas that have geological features such as the loam layer in the Kanto region and where the site area is sufficiently large and can be handled by a simple open cut method. It is possible to reliably and easily form a concrete coating for rust and corrosion prevention while reducing the construction cost of the site, and achieve a significant reduction in the total construction cost combined with the reduction in the unit production cost mentioned above. There is an effect that can be.
[Brief description of the drawings]
1 is a schematic side view showing a construction completed state of metallic underground garage as an example of a unitary metallic underground construction according to the present invention.
FIG. 2 is a plan view of FIG.
FIG. 3 is a longitudinal front view taken along line XX in FIG. 1;
FIG. 4 is an enlarged vertical cross-sectional view of a main part showing a configuration of a wall, ceiling, and floor structure in a divided unit.
FIG. 5 is an enlarged longitudinal sectional view of a main part showing a joint structure of two upper and lower divided units.
FIG. 6 is a front view showing a configuration of a division unit at a stage manufactured in a factory.
FIG. 7 is a schematic front view illustrating an overlapping state during transportation of two upper and lower divided units.
FIG. 8 is a front view showing a configuration of another embodiment in which an underground unit is divided into four.
[Explanation of symbols]
1 Basement unit 1U, 1UL, 1UR Upper split unit 1D, 1DL, 1DR Lower split unit 2W Wall structure 2Wu, 2Wd Split wall structure 2C Ceiling structure 2F Floor structure 3 Core steel frame 4 Metal outer plate 6 Concrete casting metal plate 7 Concrete covering 13 Concrete solid foundation UG Underground garage (an example of underground structure)

Claims (3)

A metal underground unit that is constructed in a □ -type ramen structure in the short side direction by assembling a wall structure , ceiling structure, and floor structure in which a metal outer plate is fixed to the outside of a plurality of core steel frames. At the factory production stage, it is divided along the horizontal plane in the vertical direction intermediate part corresponding to one half of the height dimension of the wall structure or the vertical plane of the intermediate part in the width direction of the ceiling structure and floor structure. Along the vertical plane at a position deviated to one side in the width direction from one half of the width dimension of the horizontal plane, the ceiling structure and the floor structure. At the factory production stage, a total of four divided units, one for each of the top and bottom and left and right, each constructed in a substantially L-shaped ramen structure, are brought into the construction site in a unit-separated state. Multiple division units in each group By the Tsu bets with each other in the wellbore bottom formed on a concrete foundation is fixedly joined in a state abutting the cutting face ends along a horizontal plane or the horizontal and vertical surfaces of each division unit, the in the short side direction □ type Frame Structure A single unit of a plurality of metal underground units is assembled in a row, and adjacent units of the assembled plurality of metal underground units are joined to each other so that a seismic wall structure of a predetermined length in the long side direction is obtained. A unit-type metal underground structure built in
On the outside of the wall structure in each divided unit, a concrete metal plate for placing concrete that can form a rust / corrosion-resistant concrete coating on the outer surface of the wall structure by placing concrete at the construction site is provided at the factory production stage. A unit type metal underground structure, which is fixedly supported in advance.   The unit-type metal underground structure according to claim 1, wherein the target underground structure is an underground garage constructed in a state where all or part of the underground structure is embedded in the ground.   The target underground structure is a basement constructed in a state where all or part of it is buried in the ground, and the wall structure and ceiling structure of the plurality of divided units constituting each metal underground unit are made of metal. The unit type metal underground structure according to claim 1, wherein a heat insulating layer is formed in each space between the outer plate and the inner plate attached to the inside of the core steel frame.

Images