KR102086526B1 - PHC pile connection device for non welded joint - Google Patents

Abstract

The present invention provides a non-welded connection device of a PHC file, which requires no welding, reduces the number of assembly parts, and reduces construction and material costs. .
According to a preferred embodiment of the present invention, in the connecting device for connecting the lower PHC pile and the upper PHC pile, the lower PHC pile is fixedly installed on the upper end, the center having a through hole of the same diameter as the inner diameter of the PHC pile Pin inclined guide inclined downwardly between the bottom plate and the plurality of fastening positioning slots and fastening positioning slots which are cylindrically upright and open upwardly and are arranged in a circular shape in the inner diameter portion of the lower bottom plate. A position guide inner center ring having a lower guide connecting member including a plurality of bolt insertion blocks which are circularly arranged at equal intervals on the upper surface of the lower bottom plate; It is fixedly installed at the lower end of the upper PHC pile, the upper bottom plate having a through hole of the same diameter as the inner diameter of the PHC pile in the center, and installed in the inner diameter portion of the upper bottom plate and the outer diameter portion of the inner center ring of the position guide or Position guide outer center ring disposed coaxially with the inner diameter portion, at least one position guide outer center ring is located in the positioning pin is inserted into any one of the plurality of fastening positioning slots, and equally spaced on the lower surface of the upper bottom plate An upper guide connecting member coupled to the lower guide connecting member including a plurality of bolt fastening blocks arranged in a circular shape; It characterized in that it comprises a plurality of connecting member coupling bolt for fastening the upper guide connecting member and the lower guide connecting member.

Description

PHC pile connection device for non welded joint

The present invention relates to a joint connecting device of the PHC file, in particular, welding is unnecessary, and the number of assembly parts can be reduced, and construction and material costs can be reduced. The present invention relates to a non-welded joint of a PHC file which is shortened in time.

Commonly known welding-free vertical bolting method is to place the steel connection block between the high strength concrete pile and the lower pile which are interconnected, and stress by combining bolt and PC nut which is basically formed in the manufacture of concrete pile with high tensile vertical bolt It's a connection method that keeps you connected. In addition, when necessary, the edge of the connection block is supported by an outer ring to reinforce the supporting strength, and there is no need to manufacture a separate joint file and has the advantage of using a ready-made file. However, in order to install the connection block, it is necessary to make an effort to adjust the position of the through-hole of the connection block and the PC nut, and to increase the material cost to additionally install the outer ring.

As a background art of the present invention, Korean Patent Registration No. 10-1563476 has been proposed 'upper and lower detachable quick connect device for PHC pile and file construction method using the same'. It is installed on the first pile and the first mounting panel having a first coupling hole; A second mounting panel installed on the second pile and having a second coupling hole; A first connection part integrally formed with the first mounting panel or the second mounting panel and having a first connection hole; A second connection part integrally formed with the second mounting panel or the first mounting panel in which the first connection part is not formed, and having a second connection hole part; And characterized in that it comprises a fastening member for coupling the first connection portion and the second connection unit integrally, it is possible to reduce the cost required to manufacture the connection device, by selecting the assembly of the connection device in the factory or on site It can be done, the connection portion is installed on the top and bottom is separated separately has the advantage that it can be pre-assembled before putting the pile.

However, the background art does not have a plan for shear and bending reinforcement that resists a horizontal load, and it is difficult to determine the fastening position of the bolt member.

As another background art of the present invention, as Korean Patent Registration No. 10-1205893, 'end coupling device of the PHC file' has been proposed, but it is not possible to automatically determine the fastening position between the PHC file is used for the connection work There is a problem.

Korea Patent Registration No. 10-1563476 Korea Patent Registration No. 10-1205893

The present invention provides a non-welded connection device for PHC pile joints, which requires no welding, reduces the number of assembly parts, and reduces construction and material costs. The purpose is.

According to a preferred embodiment of the present invention, in the connecting device for connecting the lower PHC pile and the upper PHC pile, the lower PHC pile is fixedly installed on the upper end, the center having a through hole of the same diameter as the inner diameter of the PHC pile Pin inclined guide inclined downwardly between the bottom plate and the plurality of fastening positioning slots and fastening positioning slots which are cylindrically upright and open upwardly and are arranged in a circular shape in the inner diameter portion of the lower bottom plate. A position guide inner center ring having a lower guide connecting member including a plurality of bolt insertion blocks which are circularly arranged at equal intervals on the upper surface of the lower bottom plate; It is fixedly installed at the lower end of the upper PHC pile, the upper bottom plate having a through-hole of the same diameter as the inner diameter of the PHC pile in the center, and the bottom of the inner diameter of the upper bottom plate is installed in the outer diameter portion of the inner center ring of the position guide or Position guide outer center ring disposed coaxially with the inner diameter part, at least one position guide outer center ring is located in the positioning guide outer center ring is inserted into any one of the plurality of fastening positioning slots, and equally spaced on the lower surface of the upper bottom plate An upper guide connecting member coupled to the lower guide connecting member including a plurality of bolt fastening blocks arranged in a circular shape; It characterized in that it comprises a plurality of connecting member coupling bolts for fastening the upper guide connecting member and the lower guide connecting member.

In addition, the upper guide connecting member is further provided on the outer circumferential surface of the upper bottom plate is characterized in that the upper guide covering is further provided disposed around the bolt insertion block.

In addition, the pin inclined guide is characterized in that it is formed with a symmetrical slope on the upper surface between the adjacent fastening positioning slots.

In addition, the bolt insertion block and the bolt fastening block is characterized in that composed of the same number.

In addition, the locking jaw is formed between the bolt insertion block and the bolt fastening block for the compression and drawing resistance of the lower PHC pile is formed.

In addition, the locking jaw is formed between the upper guide covering and the bolt insertion block is formed for compression and drawing resistance of the lower PHC pile.

In addition, the toothed portion for preventing loosening is formed at the through hole side of the bottom plate and the through hole side of the top plate, respectively, and the lower guide plate and the upper guide plate are fixed to the lower PHC file and the upper PHC file. It characterized in that the fixing bolt loosening projections are formed to limit the loosening of the guide connection member fixing bolts.

The non-welded connection device of the PHC pile according to the present invention is not welded to the joint portion of the PHC pile not only reduces the welding material cost but also eliminates the need for skilled welders, thereby reducing the operating cost. In addition, as compared with the existing bolt fastening method, the connection position of the coupling member coupling bolt is automatically determined, thereby reducing the connection time between the upper and lower PHC files. In addition, the ring plate used in the conventional bolting method can be removed to reduce the assembly material cost.

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
1 is a combined perspective view of a jointless welding device according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of Figure 1;
3A is a cross sectional view of FIG. 1.
3B is an enlarged view of a portion 'A' of FIG. 3A.
Figure 4 is a modified perspective view of the upper guide connecting member applied to the seam non-welding connection device of the present invention.
Figure 5a is a cross-sectional view of the coupling portion of the non-welded connection device in the state the upper guide connecting member of Figure 4 applied.
5B is an enlarged view of a portion 'B' of FIG. 5A.

In the following the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the embodiments presented are exemplary for a clear understanding of the present invention is not limited thereto.

As shown in FIGS. 1 to 3, the jointless contactless connecting device connecting the lower PHC file 10 and the upper PHC file 10 ′ according to the present invention includes a lower guide connector 12, an upper guide connector 16, and It comprises a plurality of connecting member coupling bolt 20 for fastening the upper guide connecting member 16 and the lower guide connecting member 12.

The lower guide connecting member 12 is fixedly installed by a well-known bolt fastening inserted through the hole 121c at the upper end of the lower PHC pile 10. The lower guide connecting member 12 has a lower bottom plate 121 having a through hole 121a having the same diameter as the inner diameter of the PHC pile 10 or 10 'at the center thereof, and a cylindrical portion at the inner diameter of the lower bottom plate 121. It consists of a plurality of bolt insertion block 123 is arranged in a circularly spaced at equal intervals on the upper surface of the position guide inner center ring 122, which is placed up upward. The bolt insertion block 123 is provided with a bolt insertion hole 123a into which the coupling member coupling bolt 20 is inserted.

The position guide inner center ring 122 has an upwardly inclined inclined upward surface between each of the plurality of fastening positioning slots 122a and the fastening positioning slots 122a and 122a which are circularly arranged in an upward direction. An inclined guide 122b is provided. In the present embodiment, nine fastening positioning slots 122a are formed. The width of the fastening positioning slot 122a is configured to be equal to or smaller than the diameter of the locating pin 163 to be described later. The pin inclined guide 122b is symmetrically formed on the upper surface between the adjacent fastening positioning slots 122a and 122a.

Therefore, when the lower PHC pile 10 and the upper PHC pile 10 'are connected, the locating pin 163 quickly moves toward the adjacent fastening positioning slot 122a, so that the upper guide connecting member 16 and the lower guide connecting member ( 12) has the advantage that the fastening position is automatically determined.

The upper guide connecting member 16 is fixedly installed with a known fastening bolt inserted through the hole 161c at the lower end of the upper PHC pile 10 '. The upper guide connecting member 16 has an upper bottom plate 161 having a through hole 161a having the same diameter as the inner diameter of the PHC pile 10 or 10 'at the center thereof, and a downward direction to the inner diameter of the upper bottom plate 161. At least one position guide outer center ring 162 and a position guide outer center ring 162 disposed coaxially with an outer diameter portion or an inner diameter portion of the position guide inner center ring 122, and for positioning the plurality of fastening positions. The lower guide connecting member including a locating pin 163 inserted into one of the slots 122a and a plurality of bolt fastening blocks 164 that are circularly arranged at equal intervals on the lower surface of the upper bottom plate 161 ( 12).

The outer diameter of the upper bottom plate 161 is configured to be the same as the outer diameter of the lower bottom plate 121. The position guide outer center ring 162 is disposed to be in close contact with the outer diameter portion or the inner diameter portion of the position guide inner center ring 122 by being coaxial with the lower PHC pile 10 when assembling the lower guide connecting member 12 and the upper guide connecting member 16. ) Coincides with the central axis of the upper PHC pile 10 '. The locating pin 163 is installed at three locations of the position guide outer center ring 162 in the present embodiment, but is not limited thereto and may be provided at one or more locations. Bolt fastening block 164 is composed of the same as the bolt insertion block 123, but is not limited thereto. The bolt fastening block 164 has a fastening screw hole 164a to which the connecting member coupling bolt 20 is screwed. In the present embodiment, the locating pin 163 is steel-fitted to the position guide outer center ring 162, but may be in the form of a bolt that is screwed in place.

The welding method of the lower PHC pile 10 and the upper PHC pile 10 'through the connection device will be described.

First, in a state where the lower guide connecting member 12 is fixedly installed on the upper end of the lower PHC pile 10 as shown in FIG. 2, the lower PHC pile 10 is introduced into a planned position.

In this state, the upper PHC pile 10 'with the upper guide connecting member 16 fixed to the lower end is lifted and positioned above the lower PHC pile 10.

Then, when the upper guide connecting member 16 is inserted into the lower guide connecting member 12, the circular guide of the position guide outer center ring 162 and the position guide inner center ring 122 is made, the upper PHC pile 10 'is the lower PHC pile It is arranged on the concentric axis at (10).

At this time, the locating pin 163 is guided to the pin inclined guide 122b to enter the fastening positioning hole 122a, and the bolt fastening block 164 is positioned to face the bolt insertion block 123 in a one-to-one correspondence. At the same time, the fastening screw hole 164a and the bolt insertion hole 123a are arranged in a straight line.

Then, the connecting member coupling bolt 20 is inserted into the bolt insertion hole 123a and screwed into the fastening screw hole 164a, thereby quickly and easily completing the connection between the lower PHC pile 10 and the upper PHC pile 10 '. do.

As described above, according to the present invention, the fastening position of the coupling member coupling bolt 20 is automatically determined so that the connection work between the lower PHC file 10 and the upper PHC file 10 'is much easier and the connection work time can be greatly shortened.

In addition, no welding is performed on the joint portion between the lower PHC pile 10 and the upper PHC pile 10 ', which not only reduces the welding material cost but also eliminates the need for skilled welders, thereby reducing the operating cost. In addition, the ring plate used in the conventional bolting method can be removed to reduce the assembly material cost.

In addition, the bolt fastening block 164 and the bolt insertion block 123 may face each other to exert the shear resistance of the joint.

On the other hand, the present invention as shown in Figure 3b is a locking jaw (123b, 164b) that is engaged between the bolt insertion block 123 and the bolt fastening block 164 for compression and drawing resistance of the lower PHC pile 10 is It can be formed and configured.

On the other hand, as another embodiment of the present invention, as shown in Figure 4, the upper guide connecting member 16 is installed on the outer circumferential surface of the upper bottom plate 161, the upper guide covering 165 disposed around the bolt insertion block 123 ) May be further provided.

The upper guide covering 165 surrounds the circumference of the joint between the lower PHC pile 10 and the upper PHC pile 10 'to improve aesthetics and shear resistance. The upper guide covering 165 has a bolt insertion hole 165a corresponding to the bolt insertion block 123 one to one.

In this case, as illustrated in FIGS. 5A and 5B, locking jaws 165b and 123c are formed to engage the upper guide covering 165 and the bolt insertion block 123 for compression and drawing resistance of the lower PHC pile 10. Can be configured.

On the other hand, in the present invention, as shown in Figure 6, the loosening preventing teeth 127, 167 are formed in the through hole 121a side of the lower bottom plate 121 and the through hole 161a side of the upper bottom plate 161, respectively. Can be. Therefore, as shown in FIGS. 7A and 7B, the guide connector fixing bolts 30 are inserted into the through holes 121 a and the through holes 161 a, respectively, to be fastened to the lower PHC pile 10 and the upper PHC pile 10 ′. In this case, engagement between the anti-loosening teeth 127 and 167 and the anti-loosening washer 128 is made, thereby preventing the loosening of the guide connector fixing bolt 30. As a result, the lower guide connecting member 12 and the upper guide connecting member 16 may be prevented from loosening of the guide connecting member fixing bolt 30 that fixes the lower PHC file 10 and the upper PHC file 10 '.

In addition, the lower base plate 121 and the upper base plate 161 is a guide connecting member for fixing the lower guide connecting member 12 and the upper guide connecting member 16 to the lower PHC pile 10 and the upper PHC pile 10 '. Fixing bolt loosening projections (129, 169) for limiting the loosening of the fixing bolt 30 may be further formed. At this time, the fixing bolt loosening projections (129, 169) are formed where the head of the guide connecting member fixing bolt 30 is located in each facing.

Therefore, even if the loosening of the guide bolt fixing guide 30 fixing bolt 30 of the upper PHC pile (10 ') occurs if the fixing bolt loosening limit projections (129, 169) prevent further loosening, the lower guide connecting member 12 and the upper guide connecting member It is possible to prevent the separation of the 16 from the lower PHC pile 10 and the upper PHC pile 10 '.

So far, the present invention has been described in detail with reference to the presented embodiments, but those skilled in the art may make various modifications and modifications without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The invention is not limited by the invention as such variations and modifications but only by the claims appended below.

12: Lower guide connector
16: Upper guide connector
20: Connecting member bolt

Claims (7)

In the connecting device for connecting the lower PHC pile 10 and the upper PHC pile 10 ',
A lower bottom plate 121 fixedly installed at an upper end of the lower PHC pile 10 and having a through hole 121a having a diameter equal to an inner diameter of the PHC pile 10 or 10 'at the center, and the lower bottom plate ( A pin inclined guide on the upper surface between each of the plurality of fastening positioning slots 122a and fastening positioning slots 122a and 122a which are cylindrically upright in the inner diameter portion of 121 and are arranged upwardly and circularly arranged. A lower guide connecting member 12 including a position guide inner center ring 122 having a 122b), and a plurality of bolt insertion blocks 123 circularly arranged on the upper surface of the lower bottom plate 121 at equal intervals;
An upper bottom plate 161 fixedly installed at a lower end of the upper PHC pile 10 'and having a through hole 161a having a diameter equal to an inner diameter of the PHC pile 10 or 10' at the center thereof; One or more position guide outer center ring 162 and one or more position guide outer center ring 162 disposed on the inner diameter portion of the position guide inner center ring 122 and coaxially disposed on the outer diameter portion or inner diameter portion of the position guide inner center ring 122. Locating pin 163 is inserted into any one of the plurality of fastening positioning slots (122a) and a plurality of bolt fastening blocks 164 which are circularly arranged at equal intervals on the lower surface of the upper bottom plate (161). An upper guide coupling member 16 coupled to the lower guide coupling member 12, including;
And a plurality of connecting member coupling bolts 20 for fastening the upper guide connecting member 16 and the lower guide connecting member 12 to each other;
The pin inclination guide 122b is formed in a mountain shape so as to have a symmetrical inclination on the upper surface between the adjacent fastening positioning slots 122a and 122a so that the locating pin 163 may ride on the pin inclination guide 122b. Non-welded connection device of the PHC pile, characterized in that configured to automatically slide into the fastening positioning slot (122a). The method of claim 1,
The upper guide connecting member 16 is installed on the outer circumferential surface of the upper bottom plate 161, the upper guide covering 165 is disposed on the circumference of the bolt insertion block 123 is further provided with a joint of the PHC pile Second non-welded connection. delete The method of claim 1,
The bolt insertion block 123 and the bolt fastening block 164, the joint portion of the PHC pile non-welded connection device, characterized in that composed of the same number. The method of claim 4, wherein
In order to compress and draw resistance of the lower PHC pile 10, the engaging jaw (123b, 164b) is formed between the bolt insertion block 123 and the bolt fastening block 164 is formed of the PHC pile Weld-free joints for joints. The method of claim 2,
In order to compress and draw resistance of the lower PHC file 10, a locking jaw (165b, 123c) is formed between the upper guide covering 165 and the bolt insertion block 123 is formed of the PHC file Weld-free joints for joints. The method of claim 1,
Loosening prevention teeth 127 and 167 are formed at the through hole 121a side of the lower bottom plate 121 and the through hole 161a side of the upper bottom plate 161, respectively.
Guide connector fixing bolts for fixing the lower guide connector 12 and the upper guide connector 16 to the lower PHC pile 10 and the upper PHC pile 10 'on the lower bottom plate 121 and the upper bottom plate 161. Fixing bolt loosening limiting projections (129,169) for limiting the loosening of the (30) is the joint portion of the PHC pile non-welded connection device characterized in that it is formed.

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