JP2003307021A - Steel pier and sleeper bearing structure using the steel pier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steel pier which eliminates squeaks even if a sleeper is deformed according to the lapse of time, facilitates adjustment of its displacement due to differential settlement of a building, and maintains the load-carrying capacity of the building to a high level, and to provide a sleeper bearing structure using the steel pier. <P>SOLUTION: The sleeper bearing structure consists of a base plate 1, a column portion 2, and a bearing fixture 3. The column portion is formed of first and second cylinder portions 4, 5, and a male screw body 6. The first and second cylinder portions 4, 5 have female screw portions 4a, 5a formed in their inner surfaces, respectively, and winding directions of the female screw portions are different from each other. The male screw body 6 connects the first and second cylinder portions 4, 5 together, and has first and second male screw portions 6a, 6b formed thereon corresponding to the female screw portions. The male screw body 6 also has a handle portion 6c at the center thereof. The bearing fixture 3 has right and left side plate portions 3b, 3b erected from a horizontal portion thereof, and a buffer material 14 laid on the same. Further, the first cylinder portion is mounted on the base plate at a location that is adjustable in a lateral direction. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel bundle for supporting a large pull of a floor in a building such as a house, and a large pull support structure using the steel bundle.

[0002]

2. Description of the Related Art Daihiki is a horizontal structural member that supports a floor board in a building such as a house and has a cross section of 100.
It is made of steel with each square-shaped material and metal pipe-shaped structural material with a thickness of about 100 mm to 150 × 150 mm, the end of the Daihiki is connected to the foundation directly supported by a foundation or a pillar, and the center part is required. Correspondingly supported by a bundle.

[0003] For example, since the strength of Daihiki under the floor in a room with a large floor plan is insufficient by simply supporting the ends by the base, it is necessary to support several bundles in the middle, and a piano or a large bookcase is required. Provide a required number of bundles to increase the load capacity of the floor even under the floor where furniture is placed.

A steel bundle whose length can be adjusted is generally used for the bundle described above, and an example of its structure is shown in FIG. In FIG. 6, reference numeral 31 is a receiving metal fitting, 32 is a pipe type turnbuckle, and 33 is a base plate.
By rotating the central pipe 32a of the turnbuckle 32 in the forward and reverse directions, the lower and upper ends of the upper and lower screw rods 32b and 32c are sent out from or housed in the central pipe to expand and contract the entire turnbuckle. ing.

During construction of the building, the height from the base plate 33 to the horizontal portion 31a of the receiving metal fitting 31 is almost equal to the height of the bottom surface of the concrete base 34 of the building by the operation of the turnbuckle 32. Set the same and stand in a predetermined position, place a large pull on the receiving bracket, and then operate the turnbuckle again to finely adjust the height.
1 pull the nail through the holes made in the side plates 31b, 31b
Fix with a fixing tool such as 6.

By the way, the Daihiki 35 made of wood is gradually thinned due to aging, and in the above-mentioned conventional steel bundle,
As indicated by a phantom line in FIG. 6, a gap S is formed between the bottom surface of the large pull and the horizontal portion 31 a of the receiving fitting 31. When such a gap S occurs, when a person walks on the floor, the fixtures such as the nails 36 and the side plate 31b of the receiving metal fitting rub against each other, and a so-called squeaking noise called floor squeaking occurs.

In order to eliminate the squeaking noise, an operator goes under the floor, removes a fixing tool such as a nail, operates the turnbuckle 32 to raise the receiving metal fitting, and brings the horizontal portion 31a into contact with the lower surface of the large pull. The side surface of the Daihiki 35 and the side plate 31
Fill the gap between b and 31b and fix the haul with a fixture such as a new nail.

However, since the above-mentioned work is complicated and time-consuming, and the secular change of Daihiki does not stop, the similar squeak noise may be generated again with the passage of time, and the fundamental problem cannot be solved. .

The above-mentioned problem of the squeaking noise occurs when the Daihiki is made of wood, but there are also buildings that use metal for Daihiki. The squeaking noise as described above does not occur due to the secular change of the pull.

However, when uneven settlement occurs in a building, the following problems occur in the conventional steel bundle regardless of whether the haul is made of wood or metal.

Unequal settlement of a building is caused by changes in the ground such as fluctuations in the groundwater level. When this uneven settlement occurs, it is horizontal between the bracket 31 of the steel bundle and the haul 35. And vertical displacement occurs.

By the way, when the Daihiki is made of wood, the receiving metal fitting 31 is attached to the Daihiki 35 with a fixture such as a nail as described above. Also, an engaging portion such as unevenness that engages with each other is formed between the haul and the receiving metal fitting, and these are engaged with each other, or fixed to each other with a fixing tool such as a bolt. That is, whether the Daihiki is made of wood or metal,
A horizontal shift cannot be allowed between the receiving metal fitting and the Daihiki. The vertical shift can be adjusted by operating the turnbuckle 32.

Therefore, when uneven settlement occurs in the building, in the conventional steel bundle, there is a possibility that the large pull and the receiving bracket may be deformed or damaged due to the displacement between the large pull and the receiving bracket. Such deformation and damage not only cause the load-bearing performance of the building to deteriorate, but also cause a squeak noise similar to the squeak noise due to the aged deterioration of the above-mentioned wooden Daihiki.

[0014]

[Objective] The object of the present invention is to prevent squeaking noise due to secular change of Daihiki, and to easily adjust horizontal and vertical shifts due to uneven settlement of buildings. An object of the present invention is to provide a steel bundle capable of maintaining the load bearing performance of a building at a high level, and a large pulling support structure using the steel bundle.

[0015]

In order to achieve the above object, a steel bundle according to the present invention is provided with a receiving metal fitting on the upper end of a pillar portion standing on a base plate, and the pillar portions have different winding directions on their inner surfaces. A first male screw portion and a second male screw portion corresponding to the female screw portions of the first and second tubular portions are provided between the lower first tubular portion and the upper second tubular portion where the female screw portion is formed. They are connected to each other by a male screw body which is formed in each of the lower portion and the upper portion and has a handle portion for rotating operation provided between both male screw portions, and the lower end of the first tubular portion is at the center of the upper surface of the base plate and the second tubular portion. The upper end is attached to the lower surface of the horizontal portion of the receiving member, and the receiving member has side plate portions erected on the left and right sides of the horizontal portion, and a cushioning material is laid on the upper surface of the horizontal portion. Part so that the mounting position can be adjusted in the left-right direction with respect to the base plate. There as configuration.

Further, a guide groove extending vertically is formed on the inner surface of the side plate of the receiving metal fitting, and a guide plate having guide ribs extending in the vertical direction and projecting outward is provided, and the guide plate is attached to the side surface of the large pull. The guide ribs are fitted into the guide grooves of the side plate.

Further, a central convex portion projecting upward is provided at the center of the base plate, and an elongated hole extending leftward and rightward is provided on a flat surface of the central convex portion so that the screw portion is projected upward from the lower surface of the base plate. The internal thread portion formed on the inner surface of the first tubular portion near the lower end portion to the threaded portion of the bolt, and the first tubular portion is attached to the base plate by screwing them together through a nut.
By loosening between the nut and the internal thread,
The configuration is such that the left and right positions of the first tubular portion with respect to the base plate can be adjusted.

The pulling support structure according to the present invention is provided with a metal fitting on the upper end of the pillar portion erected on the base plate, and the pillar portion has a first lower portion in which female threads of different winding directions are formed on the inner surface. Between the cylindrical portion and the upper second cylindrical portion, a first male screw portion and a second male screw portion corresponding to the female screw portions of the first and second cylindrical portions are formed in the lower portion and the upper portion, respectively. They are connected by a male screw body provided with a handle portion for turning operation between the screw portions, and the lower end of the first tubular portion is at the center of the upper surface of the base plate and the upper end of the second tubular portion is the lower surface of the horizontal portion of the receiving metal fitting. The side plates are erected on the left and right of the horizontal part, and the cushioning material is laid on the upper surface of the horizontal part. The base plate of a steel bundle mounted so that the mounting position can be adjusted in any direction Building concrete base and fixed by adhesion, and received there as lower and side surfaces formed by support structure of Obiki by fitting.

Further, a guide groove extending vertically is provided on the inner surface of the side plate of the receiving metal fitting, and a guide plate having guide ribs extending in the vertical direction and projecting outward is attached to the side surface of the pulling guide, and the guide rib is provided. It has a structure that fits inside.

Further, a central convex portion protruding upward is provided at the center of the base plate in the steel bundle, and a flat hole of the central convex portion is provided with an elongated hole extending in the left and right direction. The female thread portion formed on the inner surface of the first tubular portion near the lower end portion is screwed onto the threaded portion of the bolt having the projecting portion through a nut to attach the first tubular portion to the base plate,
By loosening the bolt, the nut, and the female screw portion, the left and right positions of the first tubular portion with respect to the base plate can be adjusted according to the pulling position.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a steel bundle according to the present invention and a hauling support structure using the steel bundle will be described in detail below with reference to the accompanying drawings. The steel bundle of the present invention comprises a base plate 1, a pillar portion 2 and a receiving metal fitting 3, and the receiving metal fitting 3 is supported via the pillar portion 2 standing upright in the center of the base plate 1.

The pillar portion 2 has a lower first tubular portion 4 whose lower end is attached to the central upper surface of the base plate 1, and an upper second tubular portion 5 whose upper end is fixed to the lower surface of the receiving metal fitting 3. A male screw body 6 for connecting the first and second cylindrical portions is provided.

A nut 7 is provided at the lower end of the first tubular portion 4, and a female screw portion 4b is provided on the inner surface of the first tubular portion near the lower end.
The nut and the female screw portion are formed by screwing the screw portion of the bolt 8 having the screw portion 8a protruding upward from the lower surface side of the base plate 1 through the elongated hole 9 of the base plate 1 into the first cylinder. The part 4 is fixed to the base plate 1.

The elongated hole 9 of the base plate 1 is formed in the center of the flat portion of the central convex portion 1a of the base plate in the left-right direction. Insert a tool to stop the head of the bolt 8 from turning,
If the nut 7 is loosened in this state, the first
The horizontal position of the tubular portion 4, that is, the horizontal position of the receiving fitting 3 with respect to the base plate 1 can be adjusted.

The height of the flat portion of the central convex portion 1a of the base plate is slightly (about 1 to 2 mm) larger than the thickness (width in the axial direction) of the head portion of the bolt 8, and the bolt is directly loaded. It is configured so that it will not be affected.

In addition to the central convex portion 1a, a reinforcing rib 1b and a corner hole 1c are formed on the base plate 1 by press molding. The reinforcing rib 1b bonds the base plate to a concrete base 10 of a building. The corner holes 1c are provided for the purpose of discharging excess adhesive to the upper surface side of the base plate 1 when it is fixed with an adhesive.

On the inner surfaces of the first and second cylindrical portions 4 and 5,
Female screw portions 4a, 5a having different winding directions are formed, and the first screw thread corresponding to each female screw portion 4a, 5a is formed.
The male screw portion 6a and the second male screw portion 6b are formed on the lower portion and the upper portion of the male screw body 6, respectively, and both male screw portions 6a and 6b are formed.
A handle portion 6 for rotating the male screw body 6 forward and backward is provided between
c is provided, and this handle portion has a hexagonal column shape so that it can be operated by a tool such as a monkey wrench.

Further, nuts 11a and 11b are screwed onto the first male screw portion 6a and the second male screw portion 6b of the male screw body 6, respectively. When these nuts are tightened toward the open ends of the first and second tubular parts,
The first cylinder portion 4, the second cylinder portion 5 and the male screw body 6 can be firmly fastened.

Further, the upper end of the second tubular portion 5 is fixed to the lower surface of the horizontal portion 3a of the receiving fitting 3 by welding, and the receiving fitting 3
Side plate portions 3b, 3b for holding the side surface of the large pull 12 are erected on the left and right sides of the horizontal portion in the horizontal part of the horizontal portion, and the upper portions of these side plate portions are slightly widened toward the outside. It is easy to introduce. Guide grooves 13, 13 are formed in the vertical direction on the inner surface of each side plate portion 3b, and the guide grooves will be described later.

Further, a cushioning material 14 is laid on the upper surface of the horizontal portion 3a of the receiving metal fitting 3, and this cushioning material has front, rear, left and right grooves 14a formed on the upper surface as shown in an enlarged view in part in FIG. For example, it is made of a synthetic rubber plate having a thickness of about 1 to 2 cm, and these grooves 14a are designed to enhance the cushioning effect.

Next, a method of using the steel bundle constructed as described above will be described. First, the bolt 8 and the nut 7 are tightened to fix the first tubular portion 4 to the center of the base plate 1, and the base plate is fixed to the concrete base 10 of the building with an adhesive. After that, the handle portion 6c of the male screw body 6 is rotated forward and backward to set the height of the receiving metal fitting 3 with respect to the base plate to a predetermined height, and the nuts 11a and 11b are tightened.

The guide plates 15 and 15 are attached to the large pulling side surface of the portion supported by the steel bundle by fixing means such as nails 16 and 16 or appropriate fixing means such as adhesion. Guide ribs 17, 17 projecting outward and extending in the vertical direction are formed on the outer side surfaces of the guide plates 15, 15, and the guide groove 1 in the side plate portions 3b, 3b of the receiving metal fitting 3 is formed.
It has such a size that it can be fitted into the inner parts 3 and 13. In addition, appropriate play is provided between the outer surfaces of the guide ribs 17 and 17 and the inner surfaces of the guide grooves 13 and 13.

Thus, the large pull 12 having the guide plates 15, 15 attached in advance is aligned with the guide ribs 17, 17 of the guide plate to the guide grooves 13, 13 of the receiving metal fitting, and the lower face of the large pull is cushioned on the horizontal portion 3a. Place on material 14.

Then, if necessary, the nut 11a,
11b is loosened, the handle portion 6c of the male screw body 6 is rotated in the forward and reverse directions to finely adjust the height of the receiving metal fitting 3, and the construction is completed. Although the guide plates 15 and 15 are attached to the large pull 12 in the above-described embodiment, the guide plates may be used without attaching the guide plate, or if the guide plate is not used, as shown in FIG. There is also a case where the receiving metal fitting 18 having no guide groove formed in the side plate portion is used as shown in FIG.

As described above, in the Daihiki support structure using the steel bundle of the present invention, when a deviation occurs in the position of the Daihiki due to a construction error during construction of the building or uneven settlement of the building. In the following, the correction for the displacement of the Daihiki is performed as follows.

First, with respect to the vertical shift, the nuts 11a and 11b are loosened to rotate the handle portion 6c of the male screw body 6 forward and backward, the height of the receiving metal fitting 3 is adjusted, and the nuts 11a and 11b are again adjusted. Tighten.

In addition, with respect to lateral displacement and twisting, the nut 7 is rotated and loosened while the head of the bolt 8 is prevented from rotating, and the bolt 8 is moved along the elongated hole 9 to the left and right direction. The position is corrected, and the entire pillar 2 is rotated around the shaft together with the metal fitting 3 to correct the twist, and after the correction, the nut 7 is tightened to finish the correction work.

Further, with respect to the deviation in the front-rear direction, if the slip is small, the inner surface of the guide groove 13 and the guide rib 1
7. The play between the outer surface and the outer surface absorbs the deviation, and when the deviation is large, the guide plate attached to the large pull 12 is once removed and the attachment position is changed.

If the guide plate 15 is not attached to the large pull 12, it is not necessary to correct the displacement in the front-rear direction.

[0040]

According to the steel bundle and the hauling support structure using the steel haul according to the present invention, a fastener such as a nail is provided between the haul and the metal fitting as in the prior art. Since the lower surface of the Daihiki is supported without being fixed and the cushioning material provided on the upper surface of the horizontal portion of the receiving metal fitting, even if the wooden Daihiki becomes thin due to aging, an unpleasant noise such as a squeak noise is generated. It never happens.

Further, even if the position of the pulling is shifted due to a construction error during construction of the building or uneven settlement of the building, the horizontal and vertical positions of the receiving bracket with respect to the base plate can be easily and accurately adjusted. It can be modified and the load bearing capacity of the building can be maintained sufficiently and reliably.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a Daihiki support structure using a steel bundle according to the present invention.

FIG. 2 is a plan view of the base plate, which is crossed by the line II-II in FIG.

FIG. 3 is a perspective view showing a part of the cushioning material in a vertical section.

FIG. 4 is an exploded perspective view showing a part of a Daihiki support structure using a steel bundle according to the present invention.

FIG. 5 is an exploded perspective view showing a part of a Daihiki support structure using another steel bundle according to the present invention.

FIG. 6 is a partially cutaway front view of a conventional Daihiki support structure using a steel bundle.

[Explanation of symbols]

1 base plate 2 pillars 3 brackets 3a Horizontal part 3b Side plate part 4 First tube 5 Second cylinder 6 male screw 7 nuts 8 volt 9 long holes 10 concrete base 11a, 11b nuts 12 Daihiki 13 Guide groove 14 cushioning material 15 Guide plate 16 nails 17 Guide rib 18 Bracket

Claims (6)

[Claims] 1. A lower first cylinder portion and an upper second cylinder portion, each of which is provided with a metal fitting on an upper end of a pillar portion erected on a base plate, and each of the pillar portions has an inner surface formed with female screw portions having different winding directions. The first male screw portion and the second male screw portion, which correspond to the female screw portions of the first and second cylindrical portions, are formed in the lower portion and the upper portion, respectively, and between the male and female portions, for rotational operation. And a lower end of the first tubular portion is attached to the center of the upper surface of the base plate, and an upper end of the second tubular portion is attached to the lower surface of the horizontal portion of the receiving metal fitting. Side plates are erected on the left and right of the horizontal part, and a cushioning material is laid on the upper surface of the horizontal part. Further, the mounting position of the first tubular part can be adjusted in the left-right direction with respect to the base plate. Steel bundle attached to. 2. A guide plate mounted on a side surface of a large pull, which is provided with a guide groove having a vertically extending guide groove formed on an inner surface of a side plate of the metal fitting, and having a guide rib extending vertically and projecting outward. 2. The steel bundle according to claim 1, wherein said guide rib is fitted into the guide groove of said side plate. 3. A central convex portion projecting upward is provided at the center of the base plate, and a flat surface of the central convex portion is provided with a long hole extending leftward and rightward so that the screw portion is projected upward from the lower surface of the base plate. The female threaded portion formed on the inner surface of the first tubular portion near the lower end portion is screwed onto the threaded portion of the bolt through the nut to attach the first tubular portion to the base plate, and the bolt, the nut and the female threaded portion are attached. The steel bundle according to claim 1, wherein the left and right positions of the first tubular portion with respect to the base plate can be adjusted by loosening the space between the first and second tubular portions. 4. A lower first cylinder portion and an upper second cylinder portion, each of which is provided with a receiving metal fitting on an upper end of a pillar portion erected on the base plate, and each of the pillar portions has an internal thread portion in which winding directions different from each other are formed. The first male screw portion and the second male screw portion, which correspond to the female screw portions of the first and second cylindrical portions, are formed in the lower portion and the upper portion, respectively, and between the male and female portions, for rotational operation. And a lower end of the first tubular portion is attached to the center of the upper surface of the base plate, and an upper end of the second tubular portion is attached to the lower surface of the horizontal portion of the receiving metal fitting. Side plates are erected on the left and right of the horizontal part, and a cushioning material is laid on the upper surface of the horizontal part. Further, the mounting position of the first tubular part can be adjusted in the left-right direction with respect to the base plate. The base plate of the steel bundle attached to the concrete base of the building The support structure of the adhesive by fixing and receiving formed by supporting the lower surface and side surfaces of Obiki by fitting Obiki. 5. A guide groove extending vertically is provided on an inner surface of a side plate of the metal fitting, and a guide plate having guide ribs extending in the vertical direction and protruding outward is attached to a side surface of the pulling guide, and the guide rib is provided. The support structure according to claim 4, wherein the support structure is fitted inside. 6. A central convex portion projecting upward is provided at the center of the base plate in the steel bundle, and a flat portion of the central convex portion is provided with a long hole extending in the left and right direction. The female thread portion formed on the inner surface of the first tubular portion near the lower end portion is screwed onto the threaded portion of the bolt having the protruding portion by means of a nut to attach the first tubular portion to the base plate. 5. The Daihiki support structure according to claim 4, wherein the left and right positions of the first tubular portion with respect to the base plate can be adjusted in accordance with the position of the Daihiki by loosening the gap between the female thread and the female screw section.