JP6991295B2 - 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 physical distribution 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 has a disadvantage in easily correcting when uneven subsidence occurs in a building.
The present invention has been made in view of such circumstances, and an object thereof is advantageous in installing a building such as a warehouse in a short period of time at low cost, and even when uneven subsidence occurs. The purpose is to provide a support structure for a building that can be easily corrected and a method for correcting the 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 the support portions are provided on the mat slab via a plurality of spacers stacked on the mat slab and a plurality of male screw members having the plurality of spacers arranged around the spacers. It is provided with an upper plate fixed to the upper plate and a pillar portion protruding upward from the upper plate and capable of contacting the beam, and the pillar portion and the upper plate are separate bodies, and the male screw member is the mat. Four of the spacers are arranged so as to be located at the apex of the rectangle when projected upward from the slab and viewed in a horizontal view, and the spacers are arranged between the two male screw members facing each other, and the four of the rectangles are arranged. When the support portion is viewed from a horizontal direction orthogonal to one of the sides, the two male screw members facing each other are located outside the contour of the spacer, and the two facing each other with both ends of the spacer. It is characterized in that a gap is secured between the male screw member and the male screw member .
Further, the present invention is characterized in that the lower end of the male screw member is embedded and fixed in the mat slab via an anchor.
Further, the present invention is characterized in that a lower plate interposed between the mat slab and the plurality of spacers is provided.
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. Each support portion is provided on the mat slab via a plurality of spacers stacked on the mat slab, a plurality of male screw members arranged around the plurality of spacers, and the plurality of male screw members. The beam is configured to include a top plate fixed to the top plate and a pillar portion protruding upward from the top plate and capable of contacting the beam, and the beam supported by the support portion at a location where uneven subsidence occurs. The location 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 support portion supports the portion of the beam, and the pillar portion and the upper plate are separate bodies. The male screw member is arranged so as to be located at the apex of the rectangle when projecting upward from the mat slab and viewed in a horizontal view, and the spacer is 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 both ends of the spacer. It is characterized in that a gap is secured between the two male screw members facing each other and the male screw member .
Further, in the present invention, the lower end of the male screw member is embedded and fixed in the mat slab via an anchor.
The method for correcting the uneven settlement of buildings according to claim 4, wherein the method is characterized by the above.
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 to support 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 and 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 is therefore 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, it is convenient to handle, 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 part. (A) is an explanatory diagram 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 diagram showing a state in which the refrigerated warehouse is unevenly subsided, and (C) is an explanatory diagram 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 subsidence amount 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 subsidence 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 refrigerated 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 and provided with 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 refrigerated warehouse 10 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 steels 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 refrigerating chamber 28.
The refrigerating equipment 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 has a lower plate 38 placed 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 is configured to include an upper plate 44 for fixing the 40 on the mat slab 34, and a pillar portion 46 projecting upward from the upper plate 44 and being able to come into contact with the floor steel beam 32.
As shown in FIGS. 4A and 4B, the lower plate 38 and the upper plate 44 have the same shape and 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.
The lower plate 38 may be omitted, but the provision of the lower plate 38 is advantageous in distributing and receiving the load of the refrigerating warehouse 10 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 protrudes upward from the mat slab 34. The male screw member 42 is formed with an outer diameter inserted into the male screw member insertion hole 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 are arranged. 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 steel materials such as steel plates 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 oriented horizontally, 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 a plurality of spacers 40 on the mat slab 34 via a 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 stacked on the slab 34 are fixed between the upper plate 44 and the lower plate 38 on the mat slab 34.

The pillar portion 46 is integrally formed 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 provided. The 36 can be installed efficiently, which is advantageous in shortening the construction period and reducing the cost.
The upper end of the column portion 46 is in contact with the steel frame beam 32 for the floor and supports the steel beam 32 for the floor.
Therefore, in the refrigerated warehouse 10, a plurality of floor steel beam 32s are supported by the support portions 36 on the mat slab 34.

Next, the measures to be taken when uneven subsidence occurs in the refrigerated warehouse 10 will be described.
As shown in FIG. 6, when uneven subsidence occurs as shown in FIG. 6B 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 subsidence have been described in the case of dealing with the case where the subsidence amount is relatively large by raising the subsidence part, but as follows, the subsidence amount is relatively small. 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 subsidence occurs as shown in FIG. 8 (A), the amount of subsidence 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 to support 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 in a short period of time and at low cost.
Further, since the 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, it is convenient to handle, which is advantageous in shortening the construction period and reducing the cost.
Further, even if uneven subsidence occurs in the refrigerated 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. It 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 points of the beam are provided on the mat slab, and a plurality of support portions are provided.
Each of the support portions includes a plurality of spacers stacked on the mat slab, and an upper plate for fixing the plurality of spacers on the mat slab via a plurality of male screw members arranged around the spacers. It is provided with a pillar portion that is projected upward from the upper plate and can come into contact with the beam.
The pillar portion and the upper plate are separate bodies, and the pillar portion and the upper plate are separate bodies.
Four male screw members are arranged so as to project upward from the mat slab and are located at the vertices of a rectangle when viewed in a plan view.
The spacer is placed 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 lower end of the male screw member is embedded and fixed in the mat slab via an anchor.
The building support structure according to claim 1. 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, characterized in that. A method of correcting uneven settlement of buildings with floors assembled on beams, supported on mat slabs.
A plurality of support portions for supporting the plurality of points of the beam are provided on the mat slab, and a plurality of support portions are provided.
Each support portion is fixed on the mat slab via a plurality of spacers stacked on the mat slab, a plurality of male screw members arranged around the plurality of spacers, and the plurality of male screw members. It is configured to include a plate and a pillar portion that is projected upward from the upper plate and can come into contact with the beam.
At the place where the uneven settlement occurs, the part of the beam supported by the support part is raised by a jack to increase or decrease the number of the spacers, and after the increase or decrease, the jack is removed and the part of the beam is supported by the support part. To do
The pillar portion and the upper plate are separate bodies, and the pillar portion and the upper plate are separate bodies.
Four male screw members are arranged so as to project upward from the mat slab and are located at the vertices of a rectangle when viewed in a plan view.
The spacer is placed 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 lower end of the male screw member is embedded and fixed in the mat slab via an anchor.
The method for correcting the uneven settlement of buildings according to claim 4, wherein the method is characterized by the above. A lower plate is interposed between the mat slab and the plurality of spacers.
The method for correcting the uneven settlement of buildings according to claim 4 or 5, wherein the method is characterized by the above-mentioned.

Images