JP3658336B2 - Independent foundation and its construction method and independent foundation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an independent foundation, its construction method, and an independent foundation, and in particular, a foundation for supporting a pillar such as a multilevel parking garage, and a pillar made of a steel material of a predetermined length arranged in a cross shape and concrete embedded integrally therebetween. It is related with the independent foundation which supports the construction method and the independent foundation body.
[0002]
[Prior art]
As for the foundation of the building, various forms are selected according to the required load-bearing capacity and the condition of the ground surface. Pillars 40 such as multistory parking lots are shown in solid foundation 41 and FIG. 8 as shown in FIG. The foundation beam 42 to be shown is often selected.
[0003]
Since these foundations use concrete and reinforcing bars as members to receive loads, it takes time to arrange the reinforcing bars, and it is difficult to set anchor bolts accurately to fix the columns installed on the foundation. It is an accompanying work. In addition, the depth of excavating the root allowance for constructing the foundation also requires a considerable depth, and in addition, the range of the root allowance also requires a considerable width in order to arrange the reinforcing bars.
[0004]
Furthermore, such excavation generates a heavy burden in terms of labor and waste soil disposal, and it has become a difficult problem to solve the boundary problem with the adjacent land.
[0005]
[Problems to be solved by the invention]
The present invention is proposed in order to solve the above-mentioned problem. The foundation is made a simple independent body, the excavation of the root for the independent foundation and the remaining soil treatment are facilitated, the installation of the pillar is simplified, and the adjacent We provide independent foundations, construction methods and independent foundations that do not cause problems.
[0006]
[Means for Solving the Problems]
Independent Basic according to the invention is installed in the root margin bottom of Jo Tokoro depth, the H steel of a predetermined length basis steel arranged crosswise, the lower portion of the tether and basic steel and ties for connecting the basic steel tip integrally joined to Ri consists foundation plate with a hole in the multiple, H steel with height is smaller with a gradient in the upper flange toward the tip end, levelers located on the bottom at the tip of the underlying steel an independent base body that is, are characterized in that they are composed of a buried concrete between the foundation steel in this independent base field.
[0007]
As a result, the structure of the independent foundation is simplified and the joints of the columns are facilitated and coordinated with the concrete to ensure the support strength as a foundation and omit the solid foundations and foundation beams that connect the columns. It has a function to reduce costs and shorten the construction period.
[0008]
Basic construction methods independent foundation according to the invention is for applying a separate foundation of the, drilling root margin of a predetermined depth, which on the bottom of the root margin, a H steel of a predetermined length are arranged crosswise steel, Ri consists foundation plate that the bottom of the tether及beauty foundation steel and ties for connecting the front end of the basic steel material having a plurality of holes are joined together, H steel in the upper flange toward the tip together with a gradient height is smaller, bottom levelers established the independent base body that is disposed at the tip of the basic steel, by which is located at the bottom of the front end of the basic steel leveler independent base field level is characterized in revert fill buried concrete between the foundation steel after the adjustment.
[0009]
As a result, excavation of the root canal is facilitated, and the foundation can be easily and inexpensively constructed by simply constructing a separate foundation that is separately prepared on the bottom of the root stock and burying concrete. It is functioning.
[0010]
The independent foundation according to the present invention is used for the above-mentioned independent foundation, and is a basic steel material in which H steel materials having a predetermined length are arranged in a cross shape, a connecting material for connecting the tips of the basic steel materials, and a lower portion of the basic steel material and the connecting material. The steel plate is composed of a base plate integrally joined to the steel plate, and the H steel material has a gradient in the upper flange toward the tip and the height is reduced, and a leveler is disposed at the bottom at the tip of the base steel material. It has a function that allows independent foundations to be easily made cheaply and quickly by simply bringing them to the site.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Independent Basic according to the invention is installed in the root margin bottom of Jo Tokoro depth, the H steel of a predetermined length basis steel arranged crosswise, the lower portion of the tether and basic steel and ties for connecting the basic steel tip integrally joined to Ri consists foundation plate with a hole in the multiple, H steel with height is smaller with a gradient in the upper flange toward the tip end, levelers located on the bottom at the tip of the underlying steel an independent base body that is, are characterized in that they are composed of a buried concrete between the foundation steel in this independent base field. Embodiments of the present invention will be described below in detail with reference to the drawings. In addition, although the case of the independent base body using the original H steel material is described here, the shape of the steel material is also used in the case of the independent base body using the H steel material having a shape in which the upper flange is inclined toward the tip. The only difference is that the rest is the same.
[0012]
FIG. 1 is a perspective view of an independent foundation as a comparison object of the present invention, and it is easy to understand by partially making a cross section.
[0013]
In the figure, an independent foundation 1 is composed of an independent foundation body 2 and a concrete 3 embedded between the foundation steel materials constituting the independent foundation body 2 and is installed at a root margin 5 excavated in the ground 4. ing.
[0014]
Independent foundation 1 is integral with the lower portion of the connecting member 8 and the base steel 6 and tie 8 which connects the tip 7 of the basic steel material 6 and the underlying steel 6 arranged H steel having a predetermined length in the cross, as shown It is made simple by comprising the wire mesh 9 joined to the base, and the joining of the basic steel material 6 and the column is also facilitated.
[0015]
In addition, the concrete 3 is buried between the base steel 6 arranged in a cross shape and on the wire mesh 9 below the base steel 6 and the connecting material 8, and the base steel 6 and the concrete 3 are interposed via the wire mesh 9. By forming such a coordinated state, the support strength as a foundation is integrally secured, and the foundations and foundation beams that connect the columns are omitted to reduce the construction cost and the construction period.
[0016]
FIG. 2 is an embodiment showing an enlarged view of the independent foundation of FIG. 1, and shows a plan view (a) and a side view (b) showing the concrete of the independent foundation with a simulated line.
[0017]
As shown in FIG. 2A, the independent foundation body 10 constituting the independent foundation 1 constitutes the foundation steel material 12 by arranging H steel materials 11 having a predetermined length in a cross shape. A connecting member 14 is connected between the tips 13 of the base steel material 12 to reinforce the cross-shaped form of the base steel material 12 and also function as a support member for the wire mesh 15 constituting the base plate.
[0018]
A mounting plate 18 for supporting pillars 17 is provided at the center 16 on the upper surface of the base steel material 12, and bolt holes for screwing bolts 20 are formed at the four corners corresponding to flanges 19 provided at the bottom of the pillars 17. It is.
[0019]
A base plate made of a wire mesh 15 that forms a base plate integrally with these members is joined to the lower portions of the base steel material 12 and the connecting material 14 by welding. As shown in FIG. 2 (b), the wire mesh 15 is formed as a reinforcing body between the H steel materials 11 arranged in a cross shape in order to strengthen the bond with the concrete embedded when the independent foundation 1 is constructed. The bottom plate of the independent foundation 1 is substantially formed integrally with the base steel material 12 and the connecting material 14.
[0020]
Therefore, the top load from the column is transmitted to the support ground as a result of the foundation steel material 12, the connecting material 14 and the concrete 3 constituting the bottom plate being integrated, and the independent foundation 1 exhibits sufficient support strength. To do.
[0021]
A leveler 22 is disposed at the bottom of the tip 13 of the base steel material 12 and is adjusted after the independent foundation 10 is disposed on the upper surface of the discarded concrete 21 formed at the bottom of the root as shown in the figure. By doing so, the inclination and height of the independent foundation 10 are set in an accurate form.
[0022]
In addition, in this independent base body 10 , although the basic | foundation board is comprised with the metal mesh, since the basic | foundation board plays a role as a reinforcing bar of concrete as mentioned above, it is not limited to a metal mesh, expanded metal or Even a flat plate having a plurality of holes and a steel material in the shape of a cage can be adopted.
[0023]
In addition, in this independent foundation 1 , the ground strength is secured by placing concrete directly on the ground formed at the bottom of the rooting to secure the ground strength. If necessary, the ground at the bottom of the rooting is grounded. It is also intended to improve the earth bearing capacity by improving.
[0024]
Next, the independent foundation according to the present invention will be described in detail. Basic Independent Basic body according to the present invention having a predetermined length basis steel a H steel were placed crosswise in the lower part of the connecting member and the base steel and ties for connecting the basic steel tip a plurality of holes are joined together The steel plate is made up of a plate, and the height of the H steel material is reduced toward the top with a gradient at the top flange, and a leveler is placed at the bottom of the base steel material. By simply bringing the manufactured product to the site, the independent foundation can be easily made inexpensive and functioning quickly .
[0025]
In the following, embodiments of the independent foundation according to the present invention will be described in detail with reference to the drawings . Here, for comparison, the case of using an original H steel material will also be described .
[0026]
3 and 4 show independent foundation bodies, which are respectively shown with a plan view (a) and a side view (b). The same members as those in the above drawings are shown for easy understanding. Are indicated by the same reference numerals.
[0027]
FIG. 3 is the same as the embodiment of the independent foundation described in FIG. 2, and the independent foundation 10 comprises a foundation steel material 12 by arranging H steel materials 11 having a predetermined length in a cross shape as shown in the figure. ing.
[0028]
A connecting member 14 is connected between the tips 13 of the base steel material 12 to reinforce the cross-shaped form of the base steel material 12 and to serve as a support member for the wire mesh 15.
[0029]
A mounting plate 18 for a column 17 to be supported is provided at the center 16 on the upper surface of the base steel material 12, and bolt holes are formed at four corners corresponding to flanges 19 provided at the bottom of the column 17.
[0030]
The wire mesh 15 joined by welding to the lower part of the base steel material 12 and the connecting material 14 is integrated with the basic steel material 12 and the connecting material 14 and constitutes the bottom plate of the independent foundation 1 together with the concrete.
[0031]
A leveler 22 is provided at the tip 13 of the base steel material 12 so that the inclination and height of the independent base body 10 can be adjusted in order to set them accurately.
[0032]
FIG. 4 is an embodiment of an independent foundation body according to the present invention . As shown in the figure, the independent foundation body 25 constitutes a foundation steel material 27 by arranging H steel materials 26 having a predetermined length in a cross shape.
[0033]
The H steel material 26 having a predetermined length is formed into a shape in which the original H steel material is processed and sloped toward the tip 28 thereof, whereby the root excavation depth at which the independent foundation body 25 is disposed. This makes it possible to shallow the depth.
[0034]
That is, in the independent foundation body 10 shown in FIG. 3, since the tip of the foundation steel material 12 and the upper surface central portion 16 arranged in a cross shape are at the same height, the independent foundation body 10 is arranged at the root of the shallow excavation depth. In that case, both the tip of the foundation steel material 12 on which the cross of the independent foundation body 10 is arranged and the upper surface center portion 16 are exposed to the ground surface, which is not preferable because of a high risk configuration as a foundation. .
[0035]
For this reason, in the case of the independent foundation 10, it is difficult to reduce the root excavation depth even if the upper load is equal to or less than the allowable value.
[0036]
However, when the independent foundation body 25 is arranged, even if it is installed at the root ridge where the excavation depth is shallow, the top surface 28 of the independent foundation body 25 is exposed to the ground surface, and its tip 28 is inside the root ridge. As a foundation, it can be configured so as not to cause any problems.
[0037]
Therefore, in the embodiment that employs the independent foundation body 25, it is possible to further reduce the labor for excavation work for the root and the cost for the remaining soil treatment.
[0038]
In addition, about the other structure of the independent foundation 25, since it is almost the same as that of embodiment described in FIG. 3, the description is abbreviate | omitted.
[0039]
Basic construction methods independent foundation according to the invention is for applying a separate foundation of the, drilling root margin of a predetermined depth, which on the bottom of the root margin, a H steel of a predetermined length are arranged crosswise steel, Ri from foundation plate that have a plurality of holes integrally joined to the lower portion of the tether and basic steel and ties for connecting the front end of the basic steel formed, H steel gradient in upper flange toward the tip with height is smaller with the bottom leveler is installed independent base body that is disposed at the tip of the basic steel, the level adjustment of the independent base body by placed leveler at the bottom at the tip of the underlying steel go is configured by backfilling buried concrete between the foundation steel material after, to facilitate drilling root margin, place the independent base body that has been created separately on the bottom of Nedai concrete Simply burying It is to demonstrate the ability to reclamation in easy inexpensive cost the foundation by Do not construction.
[0040]
DESCRIPTION OF EMBODIMENTS Embodiments relating to an independent foundation construction method according to the present invention will be described below in detail with reference to the drawings.
[0041]
FIG. 5 illustrates the construction method of the independent foundation according to the present invention in accordance with the first half of the process, and shows the excavation process (a) of the root allowance and the construction process (b) of the discarded concrete.
[0042]
Similarly, FIG. 6 shows an independent foundation body installation step (a), a concrete placement step (b), and a column installation step (c) in the next step, and the construction has been completed. FIG. 6 shows a case where the independent foundation 2 shown in FIG. 2 is installed, but the procedure is the same for the independent foundation 25 of the present invention shown in FIG.
[0043]
FIG. 5 (a) is a root excavation process for installing an independent foundation according to the present invention. The base 4 is excavated to a predetermined depth in a square shape.
[0044]
After excavation of Neshiro 5, ground improvement will also be carried out if necessary, but in normal cases, it will be leveled with a rammer, etc. .
[0045]
FIG. 5B shows a construction process of abandoned concrete. After leveling with a rammer or the like, the abandoned concrete 31 is constructed.
[0046]
The discarded concrete 31 is used to draw a reference line for the subsequent work and to ensure the installation accuracy of the independent foundation, and the work is as usual.
[0047]
FIG. 6A is a process of installing an independent foundation after the process described in FIG.
[0048]
In this process, the independent foundation 2 that is separately manufactured in the factory is simply carried to the site and placed on the root 5 that has been excavated. Since there is no such work, the work is carried out in a very simple, cheap and quick form.
[0049]
Therefore, the construction method of the present invention makes it possible to greatly improve the construction efficiency including the subsequent level adjustment, and can also reduce the construction cost. FIG. 6B shows a step of placing concrete.
[0050]
The embedding of the concrete 3 in the present invention is not for forming a foundation by itself, but in order to form a cooperative state in which the independent foundation and the concrete interpose a wire mesh, between the base steel materials 12 arranged in a cross shape. Is formed as a bottom plate, and is equivalent to the bottom plate of the independent foundation 1 being integrated with the base steel material 12 and the connecting material 14.
[0051]
Therefore, concrete buried after the level adjustment is sufficient by pouring about 1/2 almost basal steel 12, its top in the backfilled soil which has been excavated the construction of foundations completed Has arrived.
[0052]
FIG. 6C is a column installation process, in which the foundation work is completed. As shown in the figure, only the mounting plate 18 provided in the upper surface central portion 16 of the basic steel material 12 is exposed on the ground surface after the soil is backfilled.
[0053]
The pillar 17 has a flange 19 provided at the bottom thereof installed on a mounting plate 18 and fixed to a predetermined position by a bolt 20, and the pillar work is completed in a simple process.
[0054]
As is clear from the above steps, the independent foundation construction method according to the present invention is easy to excavate the root, and the independent foundation that has been created separately is placed on the bottom of the root. Thus, since it can be performed by simple construction that only embeds concrete, a desired independent foundation can be created very easily.
[0055]
As described above, the present invention has been described in detail on the basis of the embodiment, but the present invention is not limited to the above embodiment at all, and its application range, the shape of the base steel material and the connecting material, It goes without saying that various changes can be made to the type and the like without departing from the spirit of the present invention.
[0056]
【The invention's effect】
Independent Basic according to the invention is installed in the root margin bottom of Jo Tokoro depth, the H steel of a predetermined length basis steel arranged crosswise, the lower portion of the tether and basic steel and ties for connecting the basic steel tip integrally joined to Ri consists foundation plate with a hole in the multiple, H steel with height is smaller with a gradient in the upper flange toward the tip end, levelers located on the bottom at the tip of the underlying steel It is an independent basic body that has, is composed of a buried concrete between the foundation steel in this independent base body Tei Runode, and exerts the following effects.
1) The structure of the independent foundation is simplified to facilitate the connection with the pillar.
2) Solid foundations and foundation beams that join the columns are secured while ensuring the bearing strength as a foundation.
3) The construction cost is reduced and the construction period is shortened.
4) The root digging depth can be reduced .
[0057]
Basic construction methods independent foundation according to the invention is for applying a separate foundation of the, drilling root margin of a predetermined depth, which on the bottom of the root margin, a H steel of a predetermined length are arranged crosswise steel, Ri from foundation plate that have a plurality of holes integrally joined to the lower portion of the tether and basic steel and ties for connecting the front end of the basic steel formed, H steel gradient in upper flange toward the tip with height is smaller with the bottom leveler is installed independent base body that is disposed at the tip of the basic steel, the level adjustment of the independent base body by placed leveler at the bottom at the tip of the underlying steel After being done , concrete is buried between the foundation steel materials and backfilled, so it is easy to excavate the root, and an independent foundation created separately is placed on the bottom of the root to bury the concrete. For simple construction only Has effectively demonstrated can be reclamation in easy inexpensive cost the foundation me.
[0058]
The independent foundation according to the present invention is used for the above-mentioned independent foundation, and is a basic steel material in which H steel materials having a predetermined length are arranged in a cross shape, a connecting material for connecting the tips of the basic steel materials, and a lower portion of the basic steel material and the connecting material. The steel plate is composed of a base plate integrally joined to the steel plate, and the H steel material has a gradient in the upper flange toward the tip and the height is reduced, and a leveler is disposed at the bottom at the tip of the base steel material. which is configured by, have an effect that can be quickly construction in the only easily at low cost independent foundation brought to the scene what was produced separately at the factory.
[Brief description of the drawings]
FIG. 1 is a perspective view of an independent foundation as a comparison object of the present invention. FIG. 2 is an enlarged view of the independent foundation of FIG . 1. FIG. 3 is an embodiment of an independent foundation. construction view of an independent basis for construction methods independent foundation according construction view of the ground in the construction methods of the independent foundation according the invention embodiment the independent basic body according to Figure 5 shows the invention [6] the present invention 7 ] Conventional solid foundation diagram [Fig. 8] Conventional foundation beam diagram [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Independent foundation, 2 Independent foundation body, 3 Concrete, 4 Ground, 5 Root allowance, 6 Foundation steel materials, 7 Tip, 8 Connecting material, 9 Wire net, 10 Independent foundation body, 11 H steel material, 12 Foundation steel materials, 13 Tip, 14 Tie, 15 wire mesh, 16 top center, 17 pillars, 18 mounting plate, 19 flange, 20 bolt, 21 discarded concrete, 22 leveler, 25 independent foundation, 26 H steel, 27 foundation steel, 28 tip, 29 top center Part, 30% Kuriishi, 31 concrete, 40 pillars, 41 solid foundation, 42 foundation beam

Claims (3)

Is installed in the root margin bottom of a predetermined depth, the predetermined length basis steel and the H steel is arranged crosswise, the lower portion of the tether及beauty foundation steel and ties for connecting the foundation steel tips of the plurality being integrally joined to Ri consists foundation plate with holes, with H steel with a gradient in the upper flange toward the tip height is small, and the independent base field leveler bottom that is disposed at the tip of the basic steel, independent basis, characterized in that composed of a buried concrete between the foundation steel in this independent base field. Drilled root margin of a predetermined depth, the lower portion on the bottom of the該根allowance, basic steel were placed H steel of a predetermined length in a cross, tether及beauty foundation steel and ties for connecting the basic steel tip Ri consists foundation plate that have a plurality of holes are joined together in, together with the height H steel with a gradient in the upper flange toward the tip end is smaller, the leveler in the bottom at the tip of the underlying steel established the arranged not that independent base body, and wherein the backfilling is embedded concrete between the foundation steel after the level adjustment of the independent base body by being arranged on the bottom at the tip of the underlying steel leveler Independent foundation construction method. Ri growth a predetermined length H steel foundation steel arranged crosswise, the foundation plate having a plurality of holes integrally joined to the lower portion of the tether及beauty foundation steel and ties for connecting the distal end of the foundation steel, H steel with is smaller height with a slope on the flange toward the tip, it independent base field you wherein the leveler in the bottom at the tip of the underlying steel are arranged.

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