KR20110029454A

KR20110029454A - Reinforcing structure

Info

Publication number: KR20110029454A
Application number: KR1020090087136A
Authority: KR
Inventors: 엄기형
Original assignee: 엄기형
Priority date: 2009-09-15
Filing date: 2009-09-15
Publication date: 2011-03-23

Abstract

PURPOSE: A reinforcing structure of the lower part of a post for a top-down method is provided to firmly support a post in a state a post holding groove is not formed deeply and largely since pressure applied to the floor is uniformly dispersed. CONSTITUTION: A reinforcing structure of the lower part of a post for a top-down method comprises a support post(10), and a support plate(20). The support post supports the weight of a building. A support plate is coupled to the support post. The support plate is coupled to the end of the support post. The support plate is formed in a polygonal or circular shape in cross section. The support plate comprises a plurality of ribs. The ribs are formed in parallel or vertical to one surface of the support plate.

Description

Reinforcing Structure for Column Foundations Used for Reverse Drilling

The present invention forms a support plate on the lower portion of the support pillar to evenly distribute the pressure applied to the base bottom layer, so that the support pillar can be firmly supported without forming a deep and large pillar receiving groove into which the support pillar is inserted. It relates to the reinforcing structure of the lower pillar base used in the reverse drilling method.

In general, in order to prevent the ground from sinking due to the weight of buildings, bridges, tower cranes, etc., the foundation structure is constructed in the lower part of the building so that the building load is evenly transmitted and supported on the ground. Mainly used thick reinforced concrete structure. As the building heightened and the size increased, the load applied to the foundation structure per unit area also increased. For the foundation structure used, the strength was increased by increasing the thickness of the foundation structure made of the reinforced concrete structure.

Therefore, as the size or thickness of the foundation structure increases, the depth of burrow to form the foundation structure, that is, the depth of the trench is deepened. This caused the problem of increasing the construction period and excessive cost of construction for the excavation due to the complexity of the ground excavation work and the foundation structure installation process to form the foundation structure. In particular, when there is a rock-type ground in the lower part of the building, there is a problem that takes a longer construction period and construction cost to deepen the trench.

1 is a diagram illustrating a conventional foundation structure. Referring to FIG. 1, a support pillar 100 such as an H beam is provided inside a vertical column A supporting a load of a building. The support pillar 100 is a pillar used in the reverse drilling method. When the reverse drilling method is briefly described, the construction method is designed in such a manner that the ground layer and the basement layer can be simultaneously completed as the building becomes higher and the underground structure required for this is deepened. The basic concept of reverse drilling method is to install underground retaining wall (Diaphragm Wall) and pillars before underground burrowing, and then proceed with the construction of the ground frame. Corresponds to the construction method to complete the.

The support column 100 used in the reverse drilling method is inserted into the column receiving groove B deeply formed to support the pressure (C) by the building load or the like. Wherein the pressure (C) is concentrated on the lower end of the support column 100, the lower end of the support column 100 is not provided with a separate configuration for dispersing the pressure (C). So conventionally formed pillar receiving groove (B) deep, and by mounting a plurality of stud bolts 110 for the organic coupling with the concrete along the longitudinal direction of the support column (100), pillar receiving groove (B) By increasing the friction between the concrete and the support pillar 100 to be poured in, the support pillar 100 was to support the pressure (C). However, this, bar depth should be formed to the depth of the column receiving groove (B), the construction period is increased, the consumption of concrete increases, there was a problem that the construction cost increases.

An object of the present invention for solving the problems of the prior art as described above is to enable to effectively support and disperse the pressure applied to the lower part of the pillar, without forming a deep and large pillar receiving groove into which the support pillar is inserted, construction period And reinforcing structures of the lower pillar foundations used in reverse drilling methods to reduce construction costs.

In addition, another object of the present invention is to reinforce the column bottom foundation used in the reverse drilling method to firmly support the support column while reducing the number of engagement protrusions such as stud bolts coupled to the side to increase the friction force The purpose is to provide a structure.

In order to achieve the above object, the present invention is a reinforcing structure of a method for forming a pillar base on the lower than the bottom concrete layer, the support pillar for supporting a building load; And it provides a reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that it comprises a plate-shaped support plate coupled to the support pillar.

In addition, the support plate provides a reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that coupled to the insertion direction end of the support pillar.

In addition, the cross section of the support plate provides a reinforcement structure of the lower pillar base used in the reverse drilling method, characterized in that formed in a polygonal shape or a circular shape.

In addition, the support plate provides a reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that the receiving groove is formed so that the end of the support pillar is coupled to receive.

In addition, the support pillar and the support plate provides a reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that the coupling by welding or bolt coupling.

In addition, it provides a reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that the engaging projection member protrudes to the outside along the longitudinal direction of the support pillar.

In addition, the end of the support pillar provides a reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that formed in the H or I or □ shape.

In addition, it provides a reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that it further comprises a plurality of ribs formed in one side of the support plate side by side or in the cross direction.

In addition, the rib protrudes in the support pillar direction, and provides a reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that configured to be in close contact with the support pillar.

In addition, the rib and the support pillar provides a reinforcement structure of the lower pillar base used in the reverse drilling method, characterized in that configured to be coupled to each other by bolt coupling or welding coupling.

In addition, the support pillar provides a reinforcement structure of the lower pillar base used in the reverse drilling method, characterized in that the insertion position is inserted into the column receiving groove formed at the position of the pressure.

In addition, it provides a reinforcement structure of the lower pillar base used in the reverse drilling method characterized in that the concrete is poured in the space provided between the pillar receiving groove and the support pillar.

In addition, the support plate provides a reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that one or more through holes are drilled.

The present invention forms a support plate on the lower portion of the support pillar to evenly distribute the pressure applied to the base bottom layer, so that the support pillar can be firmly supported without forming a deep and large pillar receiving groove into which the support pillar is inserted. Has the effect.

In addition, since the pressure is distributed in all directions by the support plate, the present invention has an effect of remarkably reducing the number of stud bolts mounted on the support pillar to increase the friction force, or not using the stud bolts at all.

In addition, the present invention when the concrete is placed in the movable receiving groove, the concrete is hardened organically closely to each other and the support plate to form a strong strength, the pressure is effectively supported, dispersed has an effect.

In addition, the present invention has the effect that through the plurality of through holes perforated on the support plate, the concrete is hardened organically and firmly with the support plate, so that the support plate can more effectively disperse the pressure by the support column.

In addition, the present invention does not have to form the pillar receiving groove deep, has the effect of reducing the construction period and construction cost.

Hereinafter, with reference to the accompanying drawings will be described in detail the reinforcing structure of the lower pillar base used in the reverse drilling method according to an embodiment of the present invention.

Figure 2 is a view showing an embodiment of the reinforcing structure of the column lower foundation used in the reverse drilling method of the present invention, Figure 3 is that the reinforcing structure of the column lower foundation used in the reverse drilling method of the present invention is responsible for the pressure. It is a figure for demonstrating.

2 and 3, the support pillar 10 is provided inside the vertical column A supporting the building load. The support column 10 is a rigid reinforcing bar supporting the pressure C 'in the building, and a cross section is formed of H, I, □, or the like. And in order to distribute the pressure (C ') concentrated in the lower end of the support pillar 10 in all directions, the plate-shaped support plate 20 is coupled to the lower end of the support pillar (10). Coupling and bonding between the support column 10 and the support plate 20 may be by welding, or a separate coupler (not shown) may be used.

The support column 10 to which the support plate 20 is coupled is inserted into the column receiving groove B 'in order to support the pressure C' by the building load or the like. Here, since the support plate 20 has a plate shape having an area larger than the area of the lower end of the support pillar 10, the pressure C ′ concentrated on the lower end of the support pillar 10 is dispersed in all directions.

Accordingly, even if the depth of the pillar receiving groove B 'is smaller than the conventional one, or the pillar receiving groove B' is not formed, the pressure C 'by the support pillar 10 is firmly supported. If the depth of the column receiving groove (B ') is reduced, the amount of concrete placed in the column receiving groove (B') is also reduced, so that the construction period and construction cost is reduced.

In addition, since the pressure (C ') is distributed in all directions by the support plate 20, the friction force by the engaging projection member such as the stud bolt 30, which protrudes outward along the longitudinal direction of the support column 10 is not used. It is not necessary to significantly reduce the number of the engaging projection members, or in some cases, the engaging projection members may not be used at all.

Figure 4 is a view showing for explaining the various shapes of the support plate of the present invention. Referring to Figure 4, the support plate 20 provided in the reinforcing structure of the lower pillar base used in the reverse drilling method of the present invention is a variety such as a square such as (a) of Figure 4 or (b) of Figure 4 Can be formed. That is, the support plate 20 is formed to have a larger area than the lower end of the support pillar 10, the shape is not particularly limited. Accordingly, it is possible to use the support plate 20 of various shapes corresponding to the shape of the pillar receiving groove (B ': shown in Figure 3) to be formed in various ways depending on the construction site conditions.

5 is a view showing another embodiment of the reinforcing structure of the lower pillar base used in the reverse drilling method of the present invention.

Referring to FIG. 5, the reinforcing structure of the lower pillar base used in the reverse drilling method of the present invention includes a support pillar 10 and a support pillar 10 provided in a pillar A (shown in FIG. 3) under vertical load in a building. It includes a plate-shaped support plate 20 is coupled to the lower end of the support pillar 10 to distribute the pressure concentrated in the lower end of the four directions.

Here, the receiving groove 22 is formed on the upper surface of the support plate 20 so that the lower end of the support pillar 10 is accommodated, and the area of the receiving groove 22 is larger than the area of the lower end of the support pillar 10. Can be.

When the receiving groove 22 is formed in the support plate 20 as described above, when concrete is poured into the pillar receiving groove B '(shown in FIG. 3), the concrete is poured into the receiving groove 22 and cured to support plate 20. ), The support pillar 10, the concrete is firmly and firmly fixed to each other, has the effect of effectively supporting the pressure, dispersion.

6 is a view showing another embodiment of the reinforcing structure of the lower pillar base used in the reverse drilling method of the present invention, Figure 7 is a schematic view of the coupling state of the reinforcing structure of the lower pillar foundation used in the reverse drilling method of FIG. It is a figure shown.

6 and 7, the reinforcing structure of the lower pillar base used in the reverse drilling method of the present invention is a support pillar 10 provided in the pillar A (shown in FIG. It includes a plate-shaped support plate 20 coupled to the lower end of the support pillar 10 to distribute the pressure concentrated on the lower end of the column 10 in all directions.

A rib structure 40 may be further formed on the support plate 20. The rib structure 40 is to allow the support plate 20 to be tightly fixed to the concrete, and to increase the strength of the support plate 20, a plurality of ribs 42 formed in the long form of the support plate 20 On the upper surface of the) is configured to be arranged in a '#' or '井' shape while intersecting with each other around the support pillar (10). The plurality of ribs 42 disposed as described above are configured to be firmly coupled to the support pillar 10 by welding, bolting, or the like.

And when concrete is poured into the column receiving groove (B ': Figure 3), the concrete is hardened organically and closely to each other with the rib structure 40, the support plate 20 forms a strong strength, the pressure is It is configured to support and distribute more effectively.

8 is a view illustrating a support plate having a through hole in the reinforcing structure of the lower pillar base used in the reverse drilling method of the present invention.

Referring to FIG. 8, the support column 10 to which the support plate 20 is coupled is inserted into the column receiving groove B ′ to support pressure by a building load or the like. And, when the concrete is poured into the column receiving groove (B '), at this time, due to the area of the support plate 20, the concrete may not be smoothly poured down the support plate 20. The present invention to prevent this in advance, a plurality of through holes (20a) in the support plate 20, through the through holes (20a) to allow the concrete to be poured smoothly below the support plate 20, or support The concrete poured below the plate 20 is smoothly moved above the support plate 20, so that the support plate 20 is hardened organically and firmly.

As such, the present invention, through the plurality of through holes (20a) to be punched in the support plate 20, because the concrete is organically and firmly hardened with the support plate 20, the support plate 20 to the support pillar (10) Has the effect of more effectively dispersing the pressure.

While the invention has been described in detail in the foregoing embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the spirit of the invention, and such modifications and variations belong to the appended claims.

1 is a diagram illustrating a conventional foundation structure.

Figure 2 is a view showing an embodiment of the reinforcing structure of the lower pillar base used in the reverse drilling method of the present invention.

3 is a view for explaining the pressure of the reinforcing structure of the lower pillar base used in the reverse drilling method of the present invention.

Figure 4 is a view showing for explaining the various shapes of the support plate of the present invention.

6 is a view showing another embodiment of the reinforcing structure of the lower pillar base used in the reverse drilling method of the present invention.

FIG. 7 is a view schematically illustrating a coupling state of a reinforcing structure of a lower pillar base used in the reverse drilling method of FIG. 6.

10: support pillar 20: support plate

20a: through hole 22: receiving groove

30: stud bolt 40: rib structure

42: rib

Claims

In the reinforcing structure of the method of forming a pillar base below the bottom concrete layer,

A support column for supporting a building load; And

Reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that it comprises a plate-shaped support plate coupled to the support pillar.

The method of claim 1,

The support plate is reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that coupled to the insertion direction end of the support pillar.

The method of claim 1,

Reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that the cross section of the support plate is formed in a polygonal shape or a circular shape.

The method of claim 1,

Reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that the receiving plate is formed with a receiving groove so that the end of the support pillar is coupled to the receiving plate.

The method of claim 1,

The support column and the support plate is reinforced structure of the lower pillar base used in the reverse drilling method, characterized in that the coupling by welding or bolt coupling.

The method of claim 1,

Reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that the engaging projection member protrudes to the outside along the longitudinal direction of the support pillar.

The method of claim 1,

Reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that the end of the support pillar is formed in H or I or □ shape.

The method of claim 1,

Reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that it further comprises a plurality of ribs formed in a direction parallel to or intersecting one surface of the support plate.

The method of claim 8,

The rib protrudes in the support pillar direction, and is configured to be in close contact with the support pillar.

The method of claim 9,

Reinforcing structure of the lower pillar base used in the reverse drilling method, characterized in that the rib and the support pillar is configured to be mutually coupled by bolt coupling or welding coupling.

The method of claim 1,

The support column is a reinforcement structure of the lower pillar base used in the reverse drilling method, characterized in that the insertion position is inserted into the column receiving groove formed at the position of the pressure.

The method of claim 11,

Reinforcement structure of the lower pillar base used in the reverse drilling method, characterized in that the concrete is poured in the space provided between the pillar receiving groove and the support pillar.

13. The method of claim 12,

Reinforcement structure of the lower pillar base used in the reverse drilling method, characterized in that one or more through holes are drilled in the support plate.