JP2001011928A - Hollow structure with height adjusting means - Google Patents

Abstract

PROBLEM TO BE SOLVED: To absorb the irregular state caused on the contact face portion between a concrete foundation plane and the side member of a hollow structure by providing height adjusting means for making a height adjustment on the lower face of the foundation section of a constituting member at the side position of the hollow structure. SOLUTION: A base plate 16 extending in the longitudinal direction is provided on a concrete foundation plane 14, and the base plate 16 is fixed on the foundation plane 14 with fixing bolts 24 at both ends of a plurality of positions. First and second liners 20, 22 are laminated and mounted on the fixed base plate 16, and a metallic plate-like member 18 arranged on the lower face of a side member 6-1 is mounted on the first and second liners 20, 22. The side member 6-1 is adjusted in height by differentiating the thickness or number of the first and second liners 20, 22, thereby the irregular state caused on the contact face portion between the concrete foundation plane and a constituting member at the side face position of a hollow structure can be absorbed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow structure having a height adjusting means, and more particularly to a method for constructing a hollow structure by providing a height adjusting means on a lower surface of a base portion of a component located at a side surface of the hollow structure. At this time, the height of the component at the side position of the hollow structure is adjusted by the height adjusting means, and the component at the side position of the hollow structure can be placed in an appropriate state, and the hollow structure can be placed in a predetermined state. The present invention relates to a hollow structure having a height adjusting means capable of constructing a hollow structure.

[0002]

2. Description of the Related Art Hollow structures include a footing type having two side members and at least one upper member and an invert type having a lower member, two side members and at least one upper member. There is an inner curved surface.

[0003] The cross-sectional area of this hollow structure varies depending on the application. That is, for example, in an industrial hollow structure having a small cross-sectional area, it is used as a passage for carrying water or other fluid, a passage for traffic of pedestrians or vehicles, or a conduit for cable insertion.

A hollow structure having a large cross-sectional area is used, for example, for constructing a tunnel on an automobile road, and the cross-sectional area increases or decreases according to the lane.

Further, the hollow structure extends in the longitudinal direction while maintaining substantially the same cross-sectional area, and the extension length can be arbitrarily set.

[0006]

By the way, in the conventional hollow structure, a concrete base plane is formed, and an invert type or footing type hollow structure is constructed on the concrete base plane. .

However, if the accuracy of manufacturing the concrete base plane and the accuracy of manufacturing the lower surface of the side member, which is a constituent member of the side surface position of the hollow structure, are insufficient, the concrete base plane and the side member of the hollow structure are not connected. An uneven state is caused at the contact surface portion, so that a hollow structure cannot be constructed in a predetermined state, which is disadvantageous in practical use.

[0008]

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned factors, the present invention relates to a hollow structure formed by joining a plurality of structural members. A height adjusting means for adjusting the height is provided on the lower surface.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION
When constructing the hollow structure, first, by the height adjustment means provided on the lower surface of the base portion of the component at the side position of the hollow structure, perform the height adjustment of the component at the side position of the hollow structure, The components at the side positions of the hollow structure are placed in an appropriate state, and the hollow structure is constructed in a predetermined state.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

1 to 5 show an embodiment of the present invention. In FIG. 2, reference numeral 2 denotes a hollow structure.

The hollow structure 2 is formed into an inner curved shape by sequentially joining a plurality of constituent members.

The hollow structure 2 includes an invert type hollow structure and a footing type hollow structure. In this embodiment, the invert type hollow structure will be described.

The invert type hollow structure 2 is shown in FIG.
, The lower member 4 and the two side members 6-1 and 6
-2, and at least one, for example, one upper member 8.

Here, for reference, the footing type hollow structure has two side members and at least one, for example, one upper member.

Further, height adjusting means 12 for adjusting the height is provided on the lower surface of the base portion 10 of the side members 6-1 and 6-2, which are constituent members at the side positions of the hollow structure 2.

The side members 6-1 and 6-
2 has a symmetrical structure, so that the side member 6
Only the -1 side will be described, and the description of the side member 6-2 will be omitted.

More specifically, as shown in FIGS. 3 and 4, the height adjusting means 12 is provided on the lower base 10 of the side member 6-1.
In the above, the hollow structure 2 is disposed in parallel with the inner part and the outer part.

As shown in FIG. 1, the height adjusting means 12 includes a base plate 16 fixed on a concrete base plane 14, and a metal member disposed on the lower surface of the side member 6-1. A steel plate member 18 and at least one, for example, two plate-shaped first and second liners 20, 2 interposed between the base plate 16 and the plate member 18;
Has two.

That is, as shown in FIG. 1, a base plate 16 extending in the longitudinal direction is provided on a concrete base plane 14, and both ends of a plurality of points in the middle of the base plate 16 are fixed by fixing bolts 24, 24 to the concrete base plane. 14, and the first and second liners 20 and 22 are stacked and mounted on the fixed base plate 16, and the lower surfaces of the side members 6-1 are placed on the first and second liners 20 and 22. The metallic plate-shaped member 18 disposed on the first stage is placed.

At this time, the height and the number of the first and second liners 20, 22 are varied to adjust the height of the side member 6-1.

Reference numeral 26 denotes the fixing bolts 24, 2
An anchor 28 for screwing the lower member 4 to the concrete base plane 14 is connected to the end of the lower member 4 by, for example, the side member 6.
1 is a joint for waterproofing, which appears on the inner surface of the joint when it is brought into contact with one end.

Next, the operation will be described.

In constructing the hollow structure 2, first, the lower member 4 is placed on a concrete base plane 14, and the height adjusting means 1 is provided on both sides of the lower member 4.
2 is arranged.

That is, the base plate 16 is disposed on the concrete base plane 14 in the longitudinal direction of the hollow structure 2, and both ends of the base plate 16 at a plurality of points in the middle are fixed by the fixing bolts 24, 24. Fix on top.

Then, on the fixed base plate 16,
That is, the first and second liners 2 are fixed between the fixing bolts 24, 24.
And the first and second liners 2 are stacked.
The metal plate-like member 18 disposed on the lower surface of the side members 6-1 and 6-2 is mounted on the reference numerals 0 and 22.

At this time, the height of the side members 6-1 and 6-2 is adjusted by arbitrarily selecting the thickness and the number of the first and second liners 20, 22.

Actually, the height of the side surface member 6-1 is adjusted by both the height adjusting means 12 located at the inner part of the hollow structure 2 and the height adjusting means 12 located at the outer part.

If necessary, the height is adjusted by at least one of the height adjusting means 12 located at the inner part of the hollow structure 2 and the height adjusting means 12 located at the outer part. In addition, it is also possible to adjust the position and absorb the lack of manufacturing accuracy of the concrete base plane 14 and the lower surfaces of the side members 6-1 and 6-2.

After the two side members 6-1 and 6-2 are placed on the concrete base plane 14 while adjusting the height of the two side members 6-1 and 6-2, The hollow member 2 is constructed by engaging and fixing the upper member 8 on the two side members 6-1 and 6-2.

Further, the construction of the hollow structure 2 as described above is extended in the longitudinal direction while maintaining substantially the same cross-sectional area, and the hollow structure 2 having an arbitrary length is constructed.

As a result, the precision of the production of the concrete base plane 14 and the lower surfaces of the side members 6-1 and 6-2 is insufficient due to the height adjusting means 12, that is, the concrete base plane 14 and the hollow structure 2 are not formed. Side members 6-1 and 6
-2 can reliably absorb irregularities caused at the contact surface with the concrete base surface 14.
The side members 6-1 and 6-2 can be placed in an appropriate state on the upper side, and the hollow structure 2 can be constructed in a predetermined state,
It is practically advantageous.

Further, the height adjusting means 12 includes a base plate 16, a plate-like member 18, and first and second liners 20, 2.
2, the configuration is simple,
There is no fear that the configuration is complicated, the production is easy, the cost can be kept low, and it is economically advantageous.

Further, when the height adjusting means 12 is formed, the hollow structure 2 side, that is, the side members 6-1 and 6
By not requiring a design change on the -2 side, there is no need to change the manufacturing process of the side members 6-1 and 6-2,
The workability of manufacturing the side members 6-1 and 6-2 can be maintained in a favorable state, and the manufacturing cost of the side members 6-1 and 6-2 is not likely to be increased, which contributes to lower costs. I can do it.

Furthermore, the first of the height adjusting means 12
By arbitrarily selecting the thickness and the number of the second liners 20, 22, the height of the side members 6-1 and 6-2 can be easily adjusted, the adjustment workability is good, and the usability can be improved. Things.

It should be noted that the present invention is not limited to the above-described embodiment, but can be variously applied.

For example, in the embodiment of the present invention, when adjusting the height of the side member of the hollow structure, the thickness and the number of at least one flat liner of the height adjusting means are arbitrarily selected. However, it is also possible to form a satin finish or other fine irregularities on both the front and back surfaces of the liner.

Then, the matte or other fine irregularities formed on the front and back surfaces of the liner prevent slippage after contact with the base plate, the plate member on the side member, or another liner. , The liner can be reliably installed, and the reliability and safety can be improved.

Further, in the embodiment of the present invention, the base plate, the plate-like member on the side member, and the liner are all formed in a flat plate shape. It is also possible to adopt a configuration that reliably prevents slippage later.

In this case, the base plate, the plate member on the side member, and the corrugated cross section formed at the contact surface portion of the liner prevent the base plate, the plate member on the side member, and the liner from sliding after contact. Prevention can be reliably performed, and reliability and safety can be further improved.

[0041]

As described above in detail, according to the present invention, in a hollow structure formed by joining a plurality of constituent members, a height is provided on a lower surface of a base portion of the constituent member at a side position of the hollow structure. Since the height adjustment means for adjusting the height is provided, the height adjustment means makes the precision of the production of the concrete base plane and the side surface position of the hollow structure lower than the component members, that is, the concrete base plane and the hollow structure It is possible to reliably absorb unevenness caused at the contact surface portion with the component member at the side position, and to place the component member at the side position of the hollow structure in an appropriate state on the concrete base plane. Can build a hollow structure in a predetermined state,
It is practically advantageous. Further, since the configuration of the height adjusting means is simple, there is no fear that the configuration is complicated, the production is easy, the cost can be kept low, and it is economically advantageous.

[Brief description of the drawings]

FIG. 1 is a schematic enlarged view of a height adjusting means according to a portion 1 in FIG. 3 showing an embodiment of the present invention.

FIG. 2 is a schematic view of an invert type hollow structure.

FIG. 3 is a partially cutaway enlarged view of a portion indicated by arrow 3 in FIG. 2;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 3;

FIG. 5 is a schematic enlarged view of a part of FIG.

[Explanation of symbols]

 2 hollow structure 6-1 and 6-2 side member 8 upper member 10 base part 12 height adjusting means 14 concrete base plane 16 base plate 18 plate member 20 first liner 22 second liner 24 fixing bolt 26 anchor 28 Joints for stopping water

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takao Iwasaki 5-7-10 Yanagizaki, Kawaguchi City, Saitama Prefecture Higashiurawa NH Residence 402 (72) Inventor Kiichi Yamashita 2-1-15- Shimizu, Shirai-machi, Inba-gun, Chiba Prefecture 302 (72) Inventor Takeshi Odaka 2-44-17 Digiri, Katsushika-ku, Tokyo Maple Heights 201 F-term (reference) 2D055 AA02 AA04 AA05 CA08 EB10 GB01 2D063 BA05 BA31

Claims (2)

[Claims] In a hollow structure formed by joining a plurality of constituent members, a height adjusting means for adjusting a height is provided on a lower surface of a base portion of the constituent member at a side position of the hollow structure. A hollow structure having height adjusting means. 2. The height adjusting means includes: a base plate fixed on a concrete base plane; and a metallic plate-shaped member disposed on a lower surface of a side member which is a constituent member at a side position of the hollow structure. The hollow structure having height adjusting means according to claim 1, comprising: a base plate; and at least one liner provided between the base plate and the plate-shaped member.