JPH0738239U - Base plate pedestal fixing device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an effective base plate column base fixing device with a high mortar filling degree by solving the shortage of mortar between the column base and the base plate. [Structure] A base plate 3 having bolt holes 3 ′ having a certain clearance with respect to the shaft diameters of a plurality of column bases 2 is positioned on the foundation concrete 1 with a space therebetween, and the length of the base plate 3 is the same as that of the foundation concrete 1. A little longer than the distance of the bottom surface of the base plate 3, the outer diameter is equal to the bolt hole 3 ',
A pipe 4 having pores whose inner diameter is larger than the outer diameter of the column base 2.
Is placed on the upper surface of the foundation concrete 1 through the bolt holes 3 ', and the upper surface of the foundation concrete 1 and the base plate 3
An apparatus for filling the mortar 6 in the lower surface of the pipe and the gap outside the pipe 4 and then injecting the grout mortar 5 from the upper opening of the bolt hole 3'and filling the gap in the bolt hole 3'and the pipe 4 with the mortar. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention attaches a positioning jig corresponding to the base plate to the anchor bolts, embeds the anchor bolts on the foundation concrete to form the column base, removes the positioning jig, then positions the base plate on the column base and fills it with mortar. The present invention relates to a base plate column base fixing device for fixing a base plate to a column base.

[0002]

[Prior art]

 Generally, when fixing the column base and the base plate, weir plates are provided on both sides, and mortar is filled in the gaps between the weir plate, the foundation concrete and the base plate, and between the column base and the base plate. It was fixed to. To fill the gap with mortar, inject the mortar from the side, first fill the gap between the foundation concrete and the base plate, and then face up the bolt holes of the base plate where the column base is inserted. Most of the devices filled naturally.

However, in such a device, the degree of filling of the gap between the base plate and the foundation concrete is high, but the degree of filling of the gap between the anchor bolt and the bolt hole of the base plate is not sufficient, which is also inconvenient in terms of strength. There were many

Further, there is a device that uses a bearing washer between the column base and the base plate and arranges it in a bolt hole of the base plate to fill the gap between the column base and the base plate. Even if the amount of mortar filled in the gap between the bolt holes was small, it was not sufficient because the clearance between the bearing washer and the column base was large, and it could not be firmly fixed. Moreover, there is a problem in that it takes time and labor to process the bearing washer, and that the processing of the flat washer to be placed on top is extremely uneconomical because the counterbore structure has to be counterbored. .

[0005]

The object of the present invention is to solve the problem of the above-mentioned conventional apparatus, that is, the shortage of mortar between the column base and the base plate, and to provide an effective base plate column base with a high mortar filling degree. To provide a fixing device.

[0006]

[Means for Solving the Problems]

 The above problem has a base plate column base fixing device according to claim 1 of the present invention, namely, a bolt hole having a certain clearance with respect to the shaft diameters of a plurality of column bases. Position the base plate at a distance above the concrete foundation, the length of which is less than the distance between the upper surface of the foundation concrete and the lower surface of the base plate, the outer diameter is equal to the bolt hole, and the inner diameter is greater than the outer diameter of the column base. Place a pipe with large pores on the top surface of the foundation concrete through the bolt holes, fill the mortar in the top surface of the foundation concrete, the bottom surface of the base plate, and the outside of the pipe with mortar, and then from the top opening of the bolt holes. A base plate that fixes the base plate to the column base by injecting grout mortar and filling the gaps inside the bolt holes and the pipe with mortar. It can be achieved by the door pillar leg locking device.

[0007]

【Example】

 The base plate pedestal fixing device according to the present invention will be described with reference to the drawings. FIG. 1 is a view showing a cross section of a base plate pedestal fixing device according to the present invention when a nut is tightened and fixed. First, a positioning corresponding to the base plate 3 is performed. Attach the jig to the anchor bolts 2, embed the anchor bolts 2 on the foundation concrete 1 and use this as the column base. After removing the positioning jig, position the base plate on the column base 2 and fill it with mortar. Then, the base plate 3 having the bolt holes 3 ′ having a certain clearance with respect to the shaft diameters of the plurality of column bases 2 from above the column bases 2 embedded in the foundation concrete 1 is added to the base concrete 1. The base plate is positioned with a gap and the length is slightly longer than the distance between the upper surface of the foundation concrete 1 and the lower surface of the base plate 3. The outer diameter is almost the same as that of the bolt hole 3'and is easily inserted into this bolt hole 3 ', and both ends whose inner diameter is larger than the outer diameter of the column base 2 are opened. After the pipe 4 having pores is placed on the upper surface of the foundation concrete 1 through the bolt holes 3 ′ and the mortar 6 is filled in the upper surface of the foundation concrete 1, the lower surface of the base plate 3 and the outer gap of the pipe 4. The grout mortar 5 is injected from the upper opening of the bolt hole 3 ', and the gap between the bolt hole 3'and the pipe 4 is filled with mortar to fix the base plate 4 to the column base.

At this time, the pores of the pipe 4 are such that the grout mortar 5 does not leak and air is not mixed into the grout mortar 5. The mortar 5 can be sufficiently filled with the grout mortar 5, and different types of mortar can be used for the grouting mortar 5 and the mortar 6, so that the mortar 5 and the mortar 6 can be used according to the strength.

After pouring the grout mortar 5 into the upper opening of the bolt hole 3 ′, the plain washer 7 is placed from the upper portion and the nut 8 is tightened. For complete fixing, fix the loosening prevention nut after the fine adjustment of the base plate and column base is completed.

[0010]

[Effect of device]

 The pipe in the column base plate according to the present invention eliminates the mortar shortage between the column base and the base plate, and fills the gap between the upper surface of the foundation concrete, the lower surface of the base plate and the outside of the pipe, and the bolt holes of the base plate. Since the mortar and the mortar filled in the gap inside the pipe can be selectively used, an effective base plate column base fixing device with a high mortar filling degree can be provided.

[Brief description of drawings]

FIG. 1 is a view showing a state after fixing a column base of a base plate column base fixing device according to the present invention.

[Explanation of symbols]

 1 Foundation concrete 2 Anchor bolt 3 Base plate 3'Bolt hole 4 Pipe 5 Grout mortar 6 Mortar 7 Plain washer 8 Nut

Claims (1)

[Scope of utility model registration request] 1. A positioning jig corresponding to a base plate is attached to an anchor bolt, the anchor bolt is embedded on the foundation concrete to form a column base, the positioning jig is removed, and then the base plate is positioned on the column base, and the mortar is attached. In a base plate column base fixing device for filling and fixing between a column base and a base plate, a base plate 3 having a bolt hole 3 ′ having a constant clearance with respect to the shaft diameters of a plurality of column bases 2 is arranged on a concrete foundation 1. Position the holes so that the length is slightly longer than the distance between the upper surface of the basic concrete 1 and the lower surface of the base plate 3, the outer diameter is equal to the bolt hole 3 ′, and the inner diameter is larger than the outer diameter of the column base 2. The pipe 4 having the same is placed on the upper surface of the foundation concrete 1 through the bolt holes 3 ', 3 of the lower surface,
And after filling the space outside the pipe 4 with the mortar 6,
A base plate column base fixing device for fixing the base plate 4 to the column base by injecting grout mortar 5 from the upper opening of the bolt hole 3'and filling the gap inside the bolt hole 3'and the pipe 4 with mortar.