JPS60164531A - Pillar anchoring apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a device for fixing columns of a house unit or the like to a concrete foundation or the like.

(Prior Art) In house construction using house units, the house units are assembled in advance at a factory, and a plurality of house units are fixed to a concrete foundation at a construction site.

One method for fixing the house unit F to the concrete foundation is to fix the lower ends of the columns to the concrete foundation. In this case, it is required to firmly fix the column in an accurate position. In particular, in the case of a house unit F without a lower beam, such as a house unit constituting an entrance, a garage, etc., the house unit itself must be made into a rigid rigid frame structure by rigidly joining the lower ends of the columns.

Conventionally, various pillar fixing devices have been developed and put into practical use. Special Publication Showa 54-6803. The fixing device of Utility Model Application No. 57-183303 is constructed as follows. That is, the anchor bolt protrudes upward from the concrete foundation. On the other hand, an end plate having a hole in the center is fixed to the lower end of the column. Then, when moving the column downward and placing it on the concrete foundation, the anchor bolt is inserted through the hole, and then a nut is screwed into the upper end of the anchor bolt to secure it. However, with the above device, in order to tighten the nuts, it is necessary to form a working opening at the lower end of the column, which reduces the strength of the column and has the disadvantage that it cannot be finished in advance. .

In addition, since the pillar is fixed with a single anchor bolt, it is a pin connection and is not a rigid connection, which has the disadvantage that the fixing strength is weak.

The fixing device of Utility Model Publication No. 51-50643 and Utility Model Application No. 52-73002 is constructed as follows.

That is, the anchor bolt protrudes upward from the concrete foundation. On the other hand, an end plate is fixed to the lower end of the column, and a bolt projects downward from the center of this end plate. The anchor bolts of the concrete foundation and the bolts of the columns are connected via a connecting mechanism, thereby fixing the columns. However, in the above-mentioned device, the pillar is fixed with a single bolt, so there is a drawback that the fixing strength is weak.

In Japanese Patent Publication No. 52-40490, a protrusion was installed on the concrete foundation, a hole was formed in the center of the end plate fixed to the lower end of the column, and after inserting the protrusion into this hole, cement, etc. was poured into the lower end of the column. It is fixed with. This device also had a weak fixing strength because it was fixed with a single protrusion.

When fixing a house unit that does not have a lower beam at the entrance, etc., the following methods are available to increase the connection strength. That is, a protrusion is provided in the horizontal direction at the lower end of the column, and this protrusion is fixed to an anchor bolt of the concrete foundation. However, this method has disadvantages in that horizontally protruding protrusions get in the way and restrict the design of entrances and the like.

(Object of the Invention) The present invention was made based on the above circumstances, and its purpose is to be able to firmly fix the lower end of a column to a concrete foundation, and to do so without forming an opening or providing a protrusion at the lower end of the column. The object of the present invention is to provide a pillar fixing device that can be used easily.

(Summary of the Invention) The gist of the present invention is a pillar fixing device having the following configuration.

(a) A hollow support member whose lower part is fixed, has a working opening on at least the upper side, and has a horizontal upper plate at the upper end. (b) A guide pin provided in the center of the upper plate and a support member formed around the guide pin. (c) An end plate fixed to the lower end opening of the hollow column (d) A guide hole formed in the center of the end plate into which the guide pin is inserted (e) A plurality of insertion holes in the end plate are provided in the upper plate. Bolts that are inserted into the insertion holes of the upper plate from the working openings of the threaded part (to) support member provided corresponding to the insertion holes and screwed into the threaded parts of the column side (configuration of the invention) Hereinafter, the bolts of the invention will be described. One embodiment will be described with reference to the drawings. Reference numeral 1 in FIG. 1 indicates a house unit that constitutes an entrance and the like. The house unit 1 has a frame made up of four columns 2 and an upper beam 3 connected between the upper ends of these columns 2, and further includes a ceiling plate and a wall plate (not shown). Note that this house unit 1 does not have a lower beam that connects the lower ends of the columns 1.

The lower end of the pillar 2 of the house unit 1 is fixed to the concrete foundation 5 by a fixing device shown in FIGS. 2 to 8.

As shown in Figure 2, at the location where the pillar 2 is fixed,
Only the lower part 5a of the concrete foundation 5 is shaped 1&. A lower portion of a vertically standing support member 10 is fixed to this lower portion 5a.

The support member 10 includes a steel material 11 having a cross-sectional shape, and a steel material 1.
1, and a horizontal upper plate 13 fixed to the upper end of the steel material 11, and is formed hollow. The lower part of the support member 1o is the lower part 5 of the concrete foundation 5.
a, but the upper part is open, and a working opening 14 is formed between the steel members 11 at the upper part.

A guide pin 15 is inserted and fixed in the center of the upper plate 13. The guide pin 15 protrudes upward and has a conical taper 15a. In addition, at the four corners of the upper plate 13, there are 4
Two insertion holes 17 are formed. Four pipes 18 are fixed to the lower side of the upper plate 13 corresponding to the holes 17.

A steel material 19 is connected between the pipes 18.

On the other hand, the pillar 2 is hollow and has a square cross section, and an end plate 20 is fixed to the opening at its lower end. End plate 2
A guide hole 21 is formed in the center of 0, and insertion holes 22 are formed in the four corners. Further, a nut 23 serving as a threaded portion is provided on the back side of the end plate 2 ( ) with a backing plate 24 interposed therebetween.

To be more specific, the backing plate 24 to which the nut 23 is fixed is
As shown in the figure, the backing plate 24 and the end plate 20 are arranged point-symmetrically on the peripheral edge of the back surface of the end plate 20, and are connected by temporary bolts 25 as shown in FIG. Next, the end plate 20 in the connected state. A backing plate 24 is welded to the lower end of the column 2 as shown in FIG. The welded portion is designated by the reference numeral 26. After welding, temporary bolt 2
Remove 5.

The pillar 2 is fixed to the foundation as follows.

First, the house unit Y1 is suspended by a crane and moved downward, and the pillar 2 is placed on the upper plate 13 of the support member 10 as shown in FIG. At this time, by inserting the guide pin 15 of the support member 10 into the guide hole 21 of the column 2, the column 2
position accurately.

Since the id pin 15 has the taper 15a, it can be easily inserted into the guide hole 21.

Next, insert the bolt 30 through the working opening 14 into the supporting member 10.
A pipe 18 .
Insertion hole 17 in upper plate 13. It is inserted into the insertion hole 22 of the end plate 20, and its tip 31 is screwed into the nut 23 of the column 2. The column 2 can be fixed to the support member 10 by screwing in the bolt 30 until the head 32 hits the lower end of the pipe 18. Since this fixing part is performed by four bolts 30, it becomes a rigid connection and the columns 2 can be firmly connected. As a result, the house unit 1 can be made into a strong rigid frame structure. In this way, since the bolts 30 are inserted and fixed from below the house unit 1, the finish of the outer wall of the house unit 1, etc. can be pre-installed at the factory.

Next, as shown in Figure 4, concrete is poured and
Forming the upper part 5b of the concrete foundation 5, thereby
The upper part of the support member 10 is embedded.

Note that the present invention is not limited to the above-mentioned embodiments, and various embodiments are possible. For example, in the above embodiment, the upper part of the support member is embedded by pouring concrete, but the upper part of the support part shrine may remain exposed or may be hidden with a board or the like.

In addition, in the above embodiment, a case was explained in which a house unit without a lower beam is fixed to the foundation, but the present invention has a structure in which columns, upper beams,
It can also be applied to the case of fixing the pillars of a box-shaped house unit Y having a lower beam.

(Effects of the Invention) As explained above, according to the method of the present invention, the guide pin provided on the upper plate of the support member fixed to the concrete foundation is inserted into the guide hole formed in the end plate of the column. , columns can be positioned accurately and easily. Further, by inserting a plurality of bolts from the working opening of the support member into the insertion hole of the upper plate and screwing them into the threaded portion provided on the end plate, the column can be firmly fixed by rigid connection. Further, since it is not necessary to form a working opening at the lower end of the column, it is possible to prevent a decrease in the strength of the column, and it is possible to finish the column in advance at the factory. Furthermore, since there is no need to provide a protrusion at the lower end of the column, it is possible to prevent the inconvenience caused by the protrusion, especially when applied to a house unit F such as an entrance without a lower beam, due to the design of the protrusion. By eliminating the constraints of

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing a house unit fixed to a foundation, FIGS. 2 to 4 are cross-sectional views illustrating how to fix a column to a foundation using the fixing device of the present invention, and FIG. Figure 5 is a sectional view taken along the line ■-■ in Figure 2, and Figure 6 is a cross-sectional view taken along line V in Figure 2.
7 and 8 are cross-sectional views taken along the line l-Vl, and are cross-sectional views illustrating step-by-step the process of fixing the end plate and the nut to the column. DESCRIPTION OF SYMBOLS 1... House unit, 2... Column, 5... Concrete foundation, 10... Support member, 13... Top plate, 14
...Work opening, 15...Guide pin, 17...
Insertion hole, 2 ()... End plate, 21... Guide hole, 23
...Natsuto, 30...bo 1311 4th tii 5tm 10 117 Figure 71 ll Figure 6 F 811 11 ll 20

Claims (1)

[Claims] (a) A hollow support member whose lower part is fixed, has a working opening at least on the upper side, and has a horizontal upper plate at the upper end; (b) A hollow support member provided at the center of the upper plate. a guide pin and a plurality of insertion holes formed around it; (c) an end plate fixed to the lower end opening of the hollow column; and (d)
a guide hole formed in the center of the end plate into which the guide pin is inserted; (e) a threaded portion provided in the end plate corresponding to the insertion hole in the upper plate; and (f) for working with the support member. A column fixing device characterized by comprising a bolt that is inserted through an opening in an insertion hole in a top plate and screwed into a neck portion of a company policy.