KR20100025656A - Structure for reinforcing head of steel tube pile - Google Patents

Abstract

PURPOSE: A head reinforcing structure of a steel pipe pile is provided to reduce construction period and construction cost, facilitate use of the pile, and improve the reliability and safety of construction. CONSTITUTION: A head reinforcing structure of a steel pipe pile comprises a reinforcing steel pipe(10), a reinforcing rod(20), a strip reinforcing rod(30), a support hanger(40), and a fixing member(50). The reinforcing steel pipe forms partial outer appearance. The reinforcing rod is positioned along the peripheral direction of the inner circumference of the reinforcing steel pipe. The strip reinforcing rod supports the reinforcing rods from the outside in a shape of strips. The support hanger is coupled with the side of the reinforcing steel pipe. The fixing member is coupled with the support hanger and fixes the support hanger.

Description

Head reinforcing structure of steel pipe pile {Structure for Reinforcing Head of Steel Tube Pile}

The present invention relates to a head reinforcing structure of a steel pipe pile, and more particularly, in reinforcing the head of a steel pipe pile, all requirements such as construction period, construction cost, ease of handling, construction safety, and construction reliability are substantially all met. The head reinforcement structure of the steel pipe pile can be satisfied.

In the case of constructing various building structures such as buildings and bridges, there is a designation of steel pipe piles to bury steel pipe piles in the ground to reinforce the strength of soft ground.

This is for safe and effective construction by laying steel pipe piles on the ground and placing the foundation concrete, and then building the upper structure on the steel pipe piles to support the load. To this end, reinforcement structures (or structures) are to be installed on the heads of steel pipe piles buried in the ground, and the head reinforcement construction of steel pipe piles on which foundation concrete is placed.

At this time, the head reinforcement structure of the steel pipe pile for reinforcing the head of the steel pipe pile is known to be very important because it has a close relationship with the safety of the construction as well as the construction period and construction cost.

There are various methods for reinforcing the head of a steel pipe pile as a prior art.

First, there is a method of installing the cover plate on the top of the steel pipe pile by welding the reinforcement plate on the inner circumferential surface of the steel pipe pile, then welding the cover plate on the top of the steel pipe pile, and welding the rebars around the cover plate.

However, this method not only increases the labor and production cost because the worker has to weld the cover plate and the rebar in the field, but also the heat of welding can cause deformation, cracking, weakening and corrosion of the weld, Due to this, welding may be eliminated, and it is vulnerable to vertical load, which may cause a failure of the structure.

Next, there is a bolt-type steel pipe pile head reinforcement method. It drills eight bolt holes on the side of the steel pipe with a hydraulic perforator, inserts the ready-made bolt-type steel pipe pile head reinforcement cover plate into the steel pipe, assembles high-tension bolts on the steel pipe pile, and throws the concrete 10 cm away from the ground. After pour, the assembly of the main reinforcing bar and the reinforcing bar under the expanded foundation, fastening reinforcing reinforcing bar and screws, which are ready-made products, are fastened to the circular cover plate, and the reinforcing base reinforcing bars are assembled and concrete is poured.

Although the bolt-type steel pipe pile head reinforcement method has the advantage of eliminating the need for on-site welding and shortening the construction time by using a cover plate which is a ready-made product (factory fabricated welding), the construction cost due to the transportation and transportation of the cover plate. This has the disadvantage of being inconvenient to transport and handle on site due to the increased weight.

Also, among the well-known ones, a cross reinforcing plate is inserted into the steel pipe pile and welded to the inside of the steel pipe, and then the circular cover plate and the steel pipe pile head are welded to each other, and the 12 vertical rebars are fillet welded to the outer circumference of the steel pipe pile, After assembling the expanded base reinforcement, there is a method of pouring concrete.

This method does not require filling concrete, but has the disadvantage of having to weld on site, difficult to assemble reinforcing foundations, difficult transportation, and expensive construction cost.

In addition, there is a known structure or structure for reinforcing the head of the steel pipe pile in the Republic of Korea Patent Office Patent Registration No. 10-0449520 and 10-0449521, etc., but the technique of the document is also the same as the conventional methods Due to the structural limitations of the head reinforcement structure of steel pipe piles, it is insufficient to satisfy all requirements such as construction period, construction cost, ease of handling, construction safety and construction reliability.

SUMMARY OF THE INVENTION An object of the present invention is to provide a head reinforcement structure of a steel pipe pile that can substantially satisfy all requirements such as construction period, construction cost, ease of handling, construction safety, and construction reliability in reinforcing the head of a steel pipe pile. It is.

The object is a reinforcement pipe of the tubular body to form a partial appearance; A plurality of reinforcing bars arranged along a circumferential direction of the inner circumferential surface of the reinforcing pipe such that a bent end is inserted into the reinforcing pipe and the other end of the straight line is exposed to the outside of the reinforcing pipe; A plurality of band reinforcing bars supporting the plurality of bars in a band shape from the outside of the reinforcing pipe; A plurality of support latches coupled to the reinforcement pipe at the side of the reinforcement pipe to support the plurality of rebars with respect to the reinforcement pipe, respectively; And a plurality of fixing members coupled to the plurality of support clasps to fix the plurality of support clasps.

Here, the support clasps may be manufactured in a horseshoe shape having both free ends inserted through a through hole formed in the side of the reinforcing pipe.

The length of both free ends of the support clasps may be the same as each other, or one free end may be made longer than the length of the other free end.

The plurality of fixing members may be nuts that are fastened to at least one free end region of both free ends of the support clasps.

It may further include a plurality of dummy reinforcing bars disposed between the reinforcing bars and the reinforcement pipe are supported together by the plurality of support clasps.

The base plate may further include a bottom plate inserted into the reinforcement pipe so as to be adjacent to the bent end portions of the reinforcing bars to form a concrete pouring space.

According to the present invention, in reinforcing the head of the steel pipe pile, there is an effect of substantially satisfying the requirements such as construction period, construction cost, ease of handling, construction safety, and construction reliability.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention. In the description of the embodiments, the same reference numerals are assigned to the same components.

1 is a perspective view of the head reinforcement structure of the steel pipe pile according to the first embodiment of the present invention, Figure 2 is a partially exploded perspective view of Figure 1, Figure 3 is a side view of Figure 1, Figure 4 is a support latch in Figure 1 Cross section view of the area.

As shown in these figures, the head reinforcement structure 1a of the steel pipe pile according to the first embodiment is largely a reinforcement pipe 10, a plurality of reinforcing bars 20, a plurality of strip reinforcing bars 30, a plurality of supports A clasp 40 and a plurality of fixing members 50 are provided, and a combination thereof can form a ground structure as a foundation work.

For each configuration please add.

First, the reinforcement pipe | tube 10 is a part which forms the partial external appearance of the whole structure. As shown in Figures 1 to 4, the reinforcement pipe 10 is made of a tubular body. In other words, the inside is an empty pipe. This reinforcement tube 10 is formed of an iron structure having a certain thickness and rigidity of the specification.

The plurality of rebars 20 are coupled to the reinforcement pipe 10 to reinforce continuous vertical loads. The plurality of reinforcing bars 20 are arranged along the circumferential direction of the inner circumferential surface of the reinforcing pipe 10 such that the bent end is inserted into the reinforcing pipe 10 and the straight other end is exposed to the outside of the reinforcing pipe 10. In the present embodiment, a total of eight rebars 20 are arranged on the inner circumferential surface of the reinforcement pipe 10 at equal intervals. However, since the scope of the present invention is not limited thereto, the number of rebars 20 may be appropriately changed. In particular, the number of reinforcing bars 20 may be determined according to a predetermined standard according to the size of the reinforcement pipe 10 considering the size of the construction. In this case, the diameter of the rebar 20 is also determined within an appropriate range.

Many strip reinforcing bar 30 is the same material as the above-described reinforcing bar 20, but is different in that it forms a circular ring shape. These strip reinforcing bar 30 serves to support a plurality of reinforcing bar 20 in the shape of a band from the outside of the reinforcing pipe (110). Although not shown, the point where the reinforcing bar 30 and the reinforcing bar 20 intersect with each other may be further applied by a method such as welding or banding.

On the other hand, the plurality of support clasps 40, coupled to the reinforcement pipe 10 at the side of the reinforcement pipe 10 serves to support a plurality of reinforcing bars 20 with respect to the reinforcement pipe 10, respectively, The fixing member 50 is coupled to the plurality of support clasps 40 and serves to fix the plurality of support clasps 40.

Looking in more detail, the support clasps 40 are all made of a horseshoe shape having both free ends 40a and 40b inserted through the through holes 10a and 10b formed on the side of the reinforcement pipe 10. At this time, in the present embodiment, the first free end portion 40a is formed longer than the second free end portion 40b of both free ends 40a and 40b of the support clasps 40, and thus, the reinforcement pipe 10 is installed during installation. ) Is further exposed outside.

The fixing members 50 are provided with nuts which are fastened to both free end portions 40a and 40b of the support clasps 40. In the present embodiment, since eight reinforcing bars 20 are provided, the support clasps 40 are also eight, in which case, 16 nuts may be used.

For reference, although not necessarily, in the present embodiment, a separate dummy reinforcement 60 is further disposed between the reinforcing bars 20 and the reinforcing pipe 10 to support each other by the support clasps 40. Suggesting.

The support clasps 40 contribute to maintaining the strength of the reinforcing bar 20 while preventing the phenomenon such as being damaged or corroded because the rebar 20 is not exposed. In addition, since the steel pipe and the reinforcing steel 20 can be strongly coupled after installing the reinforcing steel 20 inside the steel pipe pile as shown, the head of the rape pile is firmly maximized the effect of the steel pipe pile. In addition, there is an advantage that the risk of loss of material loaded into the site is also reduced.

By this configuration, the simple construction of the above-mentioned degree is moved to the place where the foundation work is required, and work is performed.

First, after the reinforcing pipe 10 is positioned, the reinforcing pipes 20 and the dummy reinforcing bars 60 are disposed on the inner circumferential surface of the reinforcing pipe 10, and at the same time, the support clasps 40 and the fixing member as the nut ( Fix one by one using 50). That is, as shown in Figure 2, by placing the support clasp 40 so as to surround the reinforcing bar 20 and the dummy reinforcement 60, both free ends (40a, 40b) of the support clasp 40 through After the exposure through the (10a, 10b), the outside of the reinforcement pipe 10 may be fastened using a nut.

This process is the same for every eight reinforcing bars 20, and finally, the band reinforcing bar 30 is fixed to the upper end of the reinforcing bar 20 to be able to finish the work very simply and simply.

According to the present embodiment, in reinforcing the head of the steel pipe pile, requirements such as construction period, construction cost, ease of handling, construction safety, and construction reliability can be substantially satisfied.

5 is a cross-sectional view of the support clasp region in the head reinforcement structure of the steel pipe pile according to the second embodiment of the present invention.

Referring to this figure, in the case of the head reinforcement structure 1b of the steel pipe pile according to the second embodiment, the fixing members 50 are formed of the long side of both free end portions 40a and 40b of the support clasps 40. 1 It is fastened only to the free end portion 40a, and this structure is sufficiently applicable.

In this case, the remaining second free end portion 40b may be in the form of protruding to the outside of the reinforcement pipe 10, or may be in the form of being extended, or may be in a state arranged inside the reinforcement pipe 10.

Figure 6a is a partial side view for showing the bottom plate structure in the head reinforcement structure of the steel pipe pile according to the third embodiment of the present invention, Figure 6b is a partial plan view of Figure 6a.

Referring to these drawings, in the case of the head reinforcement structure 1c of the steel pipe pile according to the third embodiment, the concrete is inserted and disposed inside the reinforcement pipe 10 so as to be adjacent to the bent end region of the reinforcing bars 20. The bottom plate 70 which forms a casting space is further provided.

The bottom plate 70 may have a circular reinforcement shape. If the bottom plate 70 is not provided, a large amount of concrete must be used inside the reinforcement pipe 10, which may cause a cost loss. . In addition, when the construction of the reinforcement pipe 10, when the mud (뻘), etc. are unnecessarily filled into the interior of the reinforcement pipe 10, there is no space for the concrete to be poured, and therefore, due to the decrease in strength, it is bound to naturally fail construction. .

The bottom plate 70 that performs this role may be a shape inserted in advance in the reinforcement pipe 10, or may be disposed in the construction, but in the present embodiment, the bottom plate 70 by the following structure It is to be constructed.

That is, the bottom plate 70 is installed and constructed in the reinforcement pipe 10 by another bottom plate mounting reinforcing bar 71. At this time, the bottom plate mounting reinforcing bar 71 is bent at the upper end of the straight section 71a and the straight section 71a disposed inside the reinforcing pipe 10, and is reinforced while being disposed outside the reinforcing pipe 10. The locking section 71b which catches the upper end of the pipe | tube 10, and the support section 71c which bends in the opposite direction of the locking section 71b at the lower end of the straight line section 71a, and support the bottom plate 70 are provided. The bottom plate mounting reinforcing bar 71 may be provided about four to be spaced apart from each other, but the number is not limited. That is, if at least three or more are provided, there is no problem in fixing the bottom plate while mounting the bottom plate 70. On the other hand, the distance between the bottom of the bottom plate mounting reinforcement 71 and the bottom plate 70 is preferably at least several tens of millimeters or more, but is not necessarily so.

7 is a perspective view of a head reinforcing structure of the steel pipe pile according to the fourth embodiment of the present invention, Figure 8 is a partially exploded perspective view of Figure 7, Figure 9 is a side view of Figure 7, Figure 10 is a support latch in Figure 7 Cross section view of the area.

Referring to these figures, the head reinforcement structure 1d of the steel pipe pile according to the fourth embodiment is substantially the same as the first embodiment.

However, the difference is that the lengths of both free ends 140a and 140b of the support clasps 140 in the fourth embodiment are the same as shown in the enlarged view of FIG. 8. Both free ends 140a and 140b of the support clasps 140 are fastened to the fixing member 50 which is a nut as in the first embodiment.

Even with these embodiments, there is no reason to provide the effect of the present invention.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

1 is a perspective view of the head reinforcement structure of the steel pipe pile according to the first embodiment of the present invention,

2 is a partially exploded perspective view of FIG. 1;

3 is a side view of FIG. 1;

4 is a cross-sectional view of the support clasp region in FIG. 1, FIG.

5 is a cross-sectional view of the support clasp region in the head reinforcement structure of the steel pipe pile according to the second embodiment of the present invention,

Figure 6a is a partial side view for showing the bottom plate structure in the head reinforcement structure of the steel pipe pile according to a third embodiment of the present invention,

6B is a partial plan view of FIG. 6A;

7 is a perspective view of the head reinforcement structure of the steel pipe pile according to the fourth embodiment of the present invention,

8 is a partially exploded perspective view of FIG. 7;

9 is a side view of FIG. 7;

10 is a cross-sectional view of the support clasp region in FIG. 7.

* Explanation of symbols for the main parts of the drawings

10: reinforcement pipe 20: rebar

30: band reinforcement 40: support clasp

50: fixing member 60: dummy rebar

70: bottom plate

Claims (6)

Reinforcing tubes of the tubular body forming a partial appearance; A plurality of reinforcing bars arranged along a circumferential direction of the inner circumferential surface of the reinforcing pipe such that a bent end is inserted into the reinforcing pipe and the other end of the straight line is exposed to the outside of the reinforcing pipe; A plurality of band reinforcing bars supporting the plurality of bars in a band shape from the outside of the reinforcing pipe; A plurality of support latches coupled to the reinforcement pipe at the side of the reinforcement pipe to support the plurality of rebars with respect to the reinforcement pipe, respectively; And A head reinforcement structure of a steel pipe pile, characterized in that it comprises a plurality of fixing members coupled to the plurality of support clasps to fix the plurality of support clasps. The method of claim 1, The support clasps are reinforced head structure of the steel pipe pile, characterized in that the horseshoe shape having both free ends inserted into the through hole formed in the side of the reinforcement pipe. The method of claim 2, The length of both free ends of the support clasps are the same, or any one of the free end is a head reinforcement structure of the steel pipe pile, characterized in that made longer than the length of the other free end. The method of claim 2, The plurality of fixing member is a head reinforcement structure of a steel pipe pile, characterized in that the nut is fastened to at least one of the free end region of the both ends of the support latches. The method of claim 1, The reinforcing head structure of the steel pipe pile further comprises a plurality of dummy reinforcing bars disposed between the reinforcing bars and the reinforcing pipe and supported together by the plurality of support clasps. The method of claim 1, And a bottom plate inserted into the reinforcement pipe so as to be adjacent to the bent end portions of the reinforcing bars to form a concrete placing space.

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