JP6798833B2 - How to fix building support structure and uneven settlement of buildings - Google Patents

Description

The present invention relates to a building support structure and a method for correcting uneven settlement of a building.

In recent years, with changes in logistics conditions, it has been required to install buildings such as warehouses that meet the required volume specifications in a short period of time at low cost.
Conventionally, a technique has been proposed in which a steel column that receives horizontal stress and a column that receives vertical force are provided in advance in soil concrete to easily construct a building such as a factory (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2001-295378

However, with such a technique, it is necessary to design the positions of the steel columns and columns each time according to the volume of the building, which is disadvantageous in installing the building in a short period of time at low cost.
In addition, such a technique is disadvantageous in that it can be easily corrected when uneven settlement occurs in the building.
The present invention has been made in view of such circumstances, and an object of the present invention is advantageous in installing a building such as a warehouse in a short period of time at low cost, and even when uneven settlement occurs. The purpose is to provide a support structure for a building that can be easily corrected and a method for correcting uneven settlement of the building.

In order to achieve the above object, the present invention is a building support structure that supports a building having a floor assembled on a beam on a mat slab, and supports a plurality of points of the beam on the mat slab. A plurality of support portions are provided, and each of the support portions includes a plurality of spacers stacked on the mat slab, an upper plate for fixing the plurality of spacers on the mat slab via a plurality of male screw members, and the above. The pillar portion is provided so as to project upward from the upper plate and can come into contact with the beam, and the pillar portion and the upper plate are integrally formed , and the lower end of the male screw member is embedded in the mat slab. Four of the spacers are arranged so as to be located at the apex of the rectangle when fixed and protrude upward from the mat slab and viewed in a plan view, and the spacers are arranged between the two male screw members facing each other. When the support portion is viewed from a horizontal direction orthogonal to one of the four sides of the rectangle, the two male screw members facing each other are located outside the contour of the spacer and are located at both ends of the spacer. It is characterized in that a gap is secured between the two male screw members facing each other .
Further, the present invention is characterized in that the sum of the height of the pillar portion and the thickness of the upper plate is larger than the thickness of one spacer.
Further, the present invention is characterized in that it includes a lower plate interposed between the mat slab and the plurality of spacers.
Further, the present invention is a method for correcting uneven subsidence of a building having a floor assembled on a beam, which is supported on the mat slab, and is a plurality of supports for supporting a plurality of places of the beam on the mat slab. A plurality of spacers that are provided with portions and the support portions are stacked on the mat slab, an upper plate that fixes the plurality of spacers on the mat slab via a plurality of male screw members, and an upper plate above the upper plate. The pillar portion and the upper plate are integrally formed, and the pillar portion and the upper plate are integrally formed, and the pillar portion is supported by the support portion at a place where uneven subsidence occurs. The location of the beam is raised by a jack to increase or decrease the number of spacers, and after the increase or decrease, the jack is removed so that the portion of the beam is supported by the support portion, and the lower end of the male screw member is attached to the mat slab. Four spacers are arranged so as to be located at the apex of the rectangle when buried and fixed, projecting upward from the mat slab, and viewed in a plan view, and the spacers are arranged between the two male screw members facing each other. When the support portion is viewed from a horizontal direction orthogonal to one of the four sides of the rectangle, the two male screw members facing each other are located outside the contour of the spacer, and the spacer It is characterized in that a gap is secured between both ends and the two male screw members facing each other .
Further, the present invention is characterized in that the sum of the height of the pillar portion and the thickness of the upper plate is larger than the thickness of one spacer.
Further, the present invention is characterized in that a lower plate is interposed between the mat slab and the plurality of spacers.

According to the present invention, the support portion includes an upper plate for fixing a plurality of spacers stacked on the mat slab, and a pillar portion provided on the upper plate for supporting the steel beam for the floor.
Therefore, the building can be supported by a plurality of support portions having a simple structure, and therefore the building can be installed in a short period of time at low cost.
In addition, even if uneven settlement occurs in the building, it is sufficient to arrange multiple jacks around the support part, extend the jacks, and increase or decrease the number of spacers, and the correction work of uneven settlement is efficient. It is advantageous to do it in a targeted manner.
Further , according to the present invention, since the spacer is arranged between the two male screw members facing each other, it is advantageous in easily arranging the spacer on the mat slab.
Further , according to the present invention, the provision of the lower plate is advantageous in distributing and receiving the load of the building on the mat slab, and therefore is advantageous in increasing the durability of the mat slab.
Further , according to the present invention, since the pillar portion and the upper plate are integrally formed, the handling becomes convenient, which is advantageous in shortening the construction period and reducing the cost.

It is a top view which shows the structure of the refrigerated warehouse to which the support structure of the building which concerns on embodiment is applied. It is sectional drawing of FIG. It is a front view of a support part. (A) is a plan view of the lower plate, and (B) is a plan view of the upper plate. (A) to (D) are explanatory views of the construction procedure of the support portion. (A) is an explanatory view showing a state in which the steel beam for the floor of the refrigerated warehouse is supported by the support portion, (B) is an explanatory view showing a state in which the refrigerated warehouse is sunk unevenly, and (C) is an explanation in which jacks are arranged. It is a figure. (A) is an explanatory diagram showing a state in which a portion having a relatively large amount of subsidence is raised by a jack and a spacer is added, and (B) is an explanatory diagram showing a state in which the jack is removed. (A) is an explanatory diagram showing a state in which the refrigerated warehouse has sunk unevenly, and (B) is an explanatory diagram in which jacks are arranged. (A) is an explanatory diagram showing a state in which a portion having a relatively small settlement amount is lowered by a jack and the spacer is removed, and (B) is an explanatory diagram showing a state in which the jack is removed.

Hereinafter, the present embodiment will be described with reference to the drawings.
In the embodiment, a case where the building is a refrigerated warehouse provided on the mat slab will be described.
As shown in FIGS. 1 and 2, the refrigerating warehouse 10 is divided by a floor 12, a front wall 14, a back wall 16, a ceiling 18, a left wall 20, and a right wall 22, and is covered with a roof 24 to provide a lighting fixture 26. It is provided with a refrigerating room 28 and a refrigerating facility 30 for cooling the refrigerating room 28.
The floor 12 is assembled on the steel beam 32 for the floor.
The floor steel beam 32 includes two H-shaped steels 3202 extending over the entire length of the refrigerating warehouse 10 in the depth direction at both ends in the frontage direction of the floor 12, and a plurality of H-shaped steels 3202 spaced apart from each other in the depth direction. It is provided with a plurality of H-shaped steels 3204 that connect the locations.
Steel columns 3206 are projected from both ends of the two H-shaped steel 3202, and the front wall 14, the back wall 16, and the left and right side walls 20 and 22 are assembled to the steel columns 3206.
Further, a roof steel beam 3208 is provided between the upper ends of the steel columns 3206 on both sides, and the roof 24 is assembled to the roof steel beam 3208.

The front wall 14 is provided with two openings 1404 that are opened and closed by the shutter 1402, and the openings 1404 are bordered by a dock shelter 1406.
Reference numeral 1408 indicates an overhead door that opens and closes the opening 1404 in the refrigerator compartment 28.
The refrigerating facility 30 includes a refrigerator 3002 arranged outside the room and an air cooler 3004 connected to the refrigerator 3002 and arranged in the refrigerating room 28.
A plurality of locations of the floor steel beam 32 are supported on the mat slab 34 via a height-adjustable support portion 36.

As shown in FIG. 3, each support portion 36 includes a lower plate 38 mounted on the mat slab 34, a plurality of spacers 40 stacked on the mat slab 34, a plurality of male screw members 42, and a plurality of spacers. It includes an upper plate 44 for fixing the 40 on the mat slab 34, and a pillar portion 46 which is projected upward from the upper plate 44 and can come into contact with the steel beam 32 for the floor.
As shown in FIGS. 4A and 4B, the lower plate 38 and the upper plate 44 have the same shape and the same size, and in the present embodiment, they are made of a steel plate.
The lower plate 38 and the upper plate 44 have a rectangular plate shape having a uniform thickness, and male screw member insertion holes 3802 and 4402 are formed at the four corners.
Although the lower plate 38 may be omitted, the provision of the lower plate 38 is advantageous in receiving the load of the refrigerating warehouse 10 in a distributed manner on the mat slab 34, and therefore in improving the durability of the mat slab 34. It will be advantageous.

As shown in FIGS. 3 and 5A, the lower end of the male screw member 42 is fixed on the mat slab 34 via the anchor 4202 and projects upward from the mat slab 34. The male screw member 42 is formed with an outer diameter to be inserted into the male screw member insertion holes 3802 and 4402, and a long bolt can be used as the male screw member 42.
Four male screw members 42 are arranged so as to be located at the vertices of a rectangle when viewed in a plan view at a position where each support portion 36 is provided. In other words, the male screw member insertion holes 3802 of the upper plate 44 and the lower plate 38. It is provided at a location corresponding to 4402.

As shown in FIGS. 3, 5 (B) and 5 (C), a plurality of spacers 40 are provided by being stacked on the lower plate 38.
The spacer 40 may have a structure that supports the steel beam 32 for the floor at a predetermined height on the mat slab 34, and various conventionally known materials and shapes such as a steel material such as a steel plate can be used. Is.
In this case, a shaped steel split body formed by cutting a shaped steel having a shape that can be stacked vertically when the longitudinal direction is directed to the horizontal direction, for example, an H-shaped steel or a flat steel, to a predetermined length is used. This is advantageous in obtaining the spacer 40 easily and at low cost.

As shown in FIGS. 3 and 5 (D), the upper plate 44 fixes the plurality of spacers 40 on the mat slab 34 via the plurality of male screw members 42.
That is, as shown in FIGS. 4 (B) and 5 (D), the nut 43 is screwed into the male screw member 42 protruding upward from the male screw member insertion holes 4402 at the four corners of the upper plate 44, and the upper plate 44 is matted. A plurality of spacers 40 are tightened onto the slab 34, whereby a plurality of stacked spacers 40 are fixed between the upper plate 44 and the lower plate 38 on the mat slab 34.

The pillar portion 46 is formed integrally with the upper plate 44.
Shaped steel can be used as the column portion 46, and in the present embodiment, H-shaped steel is used as the column portion 46.
As shown in FIG. 4B, H-shaped steel is welded to the upper plate 44.
The pillar portion 46 and the upper plate 44 may be separated from each other, but if the pillar portion 46 and the upper plate 44 are integrally formed as in the present embodiment, the support portion on the mat slab 34 is formed. The installation of 36 can be performed efficiently, which is advantageous in shortening the construction period and reducing costs.
The upper end of the column portion 46 abuts on the floor steel beam 32 and supports the floor steel beam 32.
Therefore, in the cold storage warehouse 10, a plurality of locations of the steel frame beams 32 for the floor are supported by the support portions 36 on the mat slab 34.

Next, the measures to be taken when uneven settlement occurs in the refrigerated warehouse 10 will be described.
As shown in FIG. 6, when uneven subsidence occurs as shown in FIG. 6 (B) from the state where the refrigerated warehouse 10 is supported while maintaining a horizontal state, the subsidence amount is relatively large in FIG. As shown in 6 (C), jacks 48 are arranged between the mat slab 34 and the floor steel beam 32 at a plurality of locations around the support portion 36.
Next, the nut 43 is removed or loosened from each male screw member 42 so that the upper plate 44 can be vertically displaced.
Next, as shown in FIG. 7A, the jack 48 is extended and the steel beam 32 for the floor is raised to bring it into a horizontal state.
Next, an additional spacer 40 is placed on the uppermost spacer 40 of the stacked spacers 40.
Next, as shown in FIG. 7B, the jack 48 is reduced and operated, and the jack 48 is removed.
Next, the nut 43 is fastened to each male screw member 42. As a result, the spacer 40 is fixed in a state of being stacked on the mat slab 34 by the upper plate 44 and the lower plate 38.
The increase or decrease in the number of spacers 40 in the support portion 36 is performed in a single support portion 36 or in a plurality of support portions 36.

In addition, the above-mentioned measures against uneven settlement have been described in the case where the countermeasure is taken by raising the subsidence area where the subsidence amount is relatively large, but as follows, the subsidence amount is to be decreased. You may try to deal with it with.
That is, as shown in FIG. 6 (A), when the refrigerated warehouse 10 is supported while maintaining a horizontal state and uneven settlement occurs as shown in FIG. 8 (A), the amount of settlement is relatively relative. At a small location, as shown in FIG. 8B, jacks 48 are arranged between the mat slab 34 and the floor steel beam 32 at a plurality of locations around the support portion 36.
Next, the nut 43 is removed or loosened from each male screw member 42 so that the upper plate 44 can be vertically displaced.
Next, the uppermost spacer 40 of the stacked spacers 40 is removed, and as shown in FIG. 9A, the jack 48 is then reduced and the floor steel beam 32 is lowered to bring it into a horizontal state.
Next, as shown in FIG. 9B, the jack 48 is reduced and operated, and the jack 48 is removed.
Next, the nut 43 is fastened to each male screw member 42. As a result, the spacer 40 is fixed in a state of being stacked on the mat slab 34 by the upper plate 44 and the lower plate 38.
The increase or decrease in the number of spacers 40 in the support portion 36 is performed in a single support portion 36 or in a plurality of support portions 36.

According to the present embodiment, the support portion 36 includes an upper plate 44 for fixing a plurality of spacers 40 stacked on the mat slab 34, and a pillar portion 46 provided on the upper plate 44 for supporting the steel beam 32 for the floor. It is composed including and.
Therefore, the refrigerated warehouse 10 can be supported by a plurality of support portions 36 having a simple structure, and therefore, the refrigerated warehouse 10 can be installed at low cost in a short period of time.
Further, since four male screw members 42 are arranged so as to be located at the vertices of the rectangle, the spacer 40 may be arranged between the two male screw members 42 facing each other, and the spacer 40 may be arranged on the mat slab 34. It is advantageous in easily arranging the 40.
Further, in the present embodiment, since the lower plate 38 is provided between the spacer 40 and the mat slab 34, it is advantageous for the load of the building to be distributed and received on the mat slab 34, and therefore the durability of the mat slab 34 is durable. It is advantageous in enhancing the sex.
Further, in the present embodiment, since the pillar portion 46 and the upper plate 44 are integrally formed, the handling becomes convenient, which is advantageous in shortening the construction period and reducing the cost.
Further, even if uneven subsidence occurs in the cold storage warehouse 10, it is sufficient to arrange a plurality of jacks 48 around the support portion 36, extend the jacks 48, and increase or decrease the number of spacers 40, which are not the same. This is advantageous for efficient settlement correction work.

In the present embodiment, the case where the building is a refrigerated warehouse has been described, but in the present invention, the building is not limited to the refrigerated warehouse and is widely applied to buildings having various specifications.

10 Refrigerator warehouse 12 Floor 28 Refrigerator room 32 Steel beam for floor 34 Mat slab 36 Support part 38 Lower plate 40 Spacer 42 Male screw member 44 Upper plate 46 Pillar part 48 Jack

Claims (6)

It is a building support structure that supports a building with a floor assembled on a beam on a mat slab.
A plurality of support portions for supporting a plurality of locations of the beam are provided on the mat slab.
Each of the support portions is provided with a plurality of spacers stacked on the mat slab, an upper plate for fixing the plurality of spacers on the mat slab via a plurality of male screw members, and a protrusion upward from the upper plate. It is provided with a pillar portion that can come into contact with the beam.
The pillar portion and the upper plate are integrally formed .
Four male screw members are arranged so that their lower ends are embedded and fixed in the mat slab, protrude upward from the mat slab, and are located at the vertices of a rectangle when viewed in a plan view.
The spacer is arranged between the two male threaded members facing each other.
When the support portion is viewed from a horizontal direction orthogonal to one of the four sides of the rectangle, the two male screw members facing each other are located outside the contour of the spacer and are located at both ends of the spacer. A gap is secured between the two male screw members facing each other.
The support structure of the building is characterized by that. The sum of the height of the pillar and the thickness of the top plate is larger than the thickness of one spacer.
The building support structure according to claim 1, wherein the building is supported. A lower plate interposed between the mat slab and the plurality of spacers is provided.
The building support structure according to claim 1 or 2 , wherein the building is supported. A method of correcting uneven settlement of buildings with floors assembled on beams, supported on mat slabs.
A plurality of support portions for supporting a plurality of locations of the beam are provided on the mat slab.
Each of the support portions is provided with a plurality of spacers stacked on the mat slab, an upper plate for fixing the plurality of spacers on the mat slab via a plurality of male screw members, and an upper plate protruding upward from the upper plate. It is configured to include a pillar portion that can come into contact with the beam.
The pillar portion and the upper plate are integrally formed.
At the location where uneven settlement occurs, the location of the beam supported by the support portion is raised by a jack to increase or decrease the number of spacers, and after the increase or decrease, the jack is removed and the portion of the beam is supported by the support portion. to make it in,
Four male screw members are arranged so that their lower ends are embedded and fixed in the mat slab, project upward from the mat slab, and are located at the vertices of a rectangle when viewed in a plan view.
The spacer is arranged between the two male threaded members facing each other.
When the support portion is viewed from a horizontal direction orthogonal to one of the four sides of the rectangle, the two male screw members facing each other are located outside the contour of the spacer and are located at both ends of the spacer. A gap is secured between the two male screw members facing each other .
How to correct the uneven settlement of buildings, which is characterized by that. The sum of the height of the pillar and the thickness of the top plate is larger than the thickness of one spacer.
The method for correcting uneven settlement of buildings according to claim 4 , wherein the building is characterized by the above. A lower plate is interposed between the mat slab and the plurality of spacers.
The method for correcting uneven settlement of buildings according to claim 4 or 5 , characterized in that.

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