KR20190084712A - Prefabricated column assembly with foundation reinforcement part - Google Patents

Abstract

The present invention relates to a prefabricated column assembly with a foundation reinforcement part. Foundation plate reinforcement of a column part can be completed simply by installing a prefabricated column assembly in which a foundation reinforcement part is integrally coupled to the lower part thereof, thereby reducing the thickness of a foundation plate while shortening a construction period. Complex installation work of anchor bolts and anchor plates on site construction can be omitted, thereby facilitating construction. The prefabricated column assembly with a foundation reinforcement part of the present invention comprises: a prefabricated column assembly composed of a plurality of cast steel pieces disposed at positions spaced apart from the outer surface of a column by a predetermined interval at each corner of the column to form a steel composite concrete column, and a plurality of transverse support members connecting the cast steel in the transverse direction; and a foundation reinforcement part coupled to the cast steel of the prefabricated column assembly to be embedded in foundation concrete and protruding by a predetermined length to an outer surface of the prefabricated column assembly.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a prefabricated column assembly with a foundation reinforcement part,

It is possible to complete reinforcement of the base plate of the column by merely providing the pre-assembly column assembly integrally coupled to the lower portion of the base reinforcement. Thus, it is possible to shorten the thickness of the base plate while reducing the thickness of the base plate, The present invention relates to a prefabricated prefabricated prefabricated prefabricated column assembly that is easy to install because it is possible to omit the installation work of bolts and anchor plates.

Recently, as the size of buildings has increased due to the enlargement of buildings and the increase of the number of buildings, the scale of the base plate which transmits the loads of the buildings to the ground is also increasing.

Particularly, the base plate near the vertical member such as a column or a wall greatly affects a moment and a shearing force. Therefore, this part becomes thicker in the foundation thickness, which causes the increase of the amount of concrete and the amount of concrete, which causes air and construction cost to increase.

Conventionally, a technique capable of reducing the base thickness by installing a basic stiffener made of a steel member at a column position has been developed in the patent document No. 10-0624075.

In the prior art, a basic stiffener composed of a steel member is installed at a column position, a joint reinforcing bar for joining the main shaft of the column is installed, and then the foundation concrete is installed in order.

Next, a separate column main girder is installed so as to be joined to the joint reinforcement, and a column is constructed.

However, since the conventional stiffener and the column are separately constructed, the number of processes increases and the construction period is long. In addition, there is a problem that when the position of the basic stiffener is erroneously installed, it is difficult to install the column.

In addition, since the basic stiffener includes the steel plate, it requires a large amount of steel frames, which is uneconomical.

On the other hand, generally, the steel frame structure is precisely manufactured by steel mills, so that the precision is very high. On the other hand, the construction precision of the reinforced concrete structure in which the formwork is installed,

Therefore, in case of pre - assembled steel column, the anchor bolt and anchor plate are installed and fixed on the top of abandoned concrete and the pre - assembled steel column is installed and fixed on the anchor plate. At this time, it is necessary to adjust the verticalness of the anchor bolts and to install a separate support frame so that the anchor bolts can stand up until the concrete is laid and cured. However, these processes are not only unclear for steel frame construction or reinforced concrete construction, but also difficult to build on site, which is a cause of cost increase as well as air.

In addition, when the column moment is large, the rib plate is welded between the anchor plate and the columnar steel. Since the rib plate protrudes to the upper portion of the bottom slab, there is a problem that the use of the floor area is limited.

In order to solve the above problems, it is an object of the present invention to provide a prefabricated prefabricated prefabricated column assembly capable of improving workability, reducing air shortening, and reducing construction cost by simplifying the process of reinforcing a base plate of a column.

An object of the present invention is to provide a prefabricated prefabricated prefabricated column assembly capable of precisely constructing the position of a prefabricated reinforced portion provided under a column for reinforcing a foundation plate of a column portion.

The present invention is to provide a pre-assembled pre-assembled pre-assembled column assembly capable of reducing the amount of steel sheets required for a basic stiffener to reduce the construction cost.

It is an object of the present invention to provide a prefabricated prefabricated prefabricated column assembly capable of omitting installation work of a complicated anchor bolt or anchor plate when a prefabricated column assembly of a steel frame is applied to a foundation.

According to a preferred embodiment of the present invention, there is provided a steel composite concrete column comprising: a plurality of cast steel materials disposed at respective corners of the column at spaced apart intervals from the outer surface of the column at a predetermined interval; and a plurality A pre-assembly column assembly comprising a transverse support member; And a foundation reinforcing portion coupled to the cast steel of the pre-assembly column assembly to be embedded in the foundation concrete, the foundation reinforcement being protruded by a predetermined length from the outer surface of the pre-assembly column assembly; The present invention provides a pre-assembled pre-assembled pre-assembly column assembly.

According to another preferred embodiment of the present invention, the basic reinforcing portion is mounted on an upper surface of a ground or abandoned concrete layer and is connected to one side of the cast steel to form a plurality of first lower supports An angle, a plurality of first upper support angles coupled to one side of the cast steel so as to be spaced apart from the upper portion of the first lower support angle by a predetermined distance, and a first upper support angle corresponding to the first lower support angles And a first reinforcing portion that is formed of a connecting angle to connect the first reinforcing portion and the second reinforcing portion.

According to another preferred embodiment of the present invention, the basic reinforcing portion is disposed in a direction orthogonal to the first reinforcing portion, and is provided on the upper surface of the first lower supporting angle so as to cross a plurality of first lower supporting angles A second upper support angle coupled to one side of the mold steel so as to cross the plurality of first upper support angles on the upper or lower surface of the first upper support angle, Further comprising a second reinforcing portion formed of a connecting angle connecting the support angle and the corresponding second upper support angle to each other.

According to another preferred embodiment of the present invention, there is provided a pre-assembly reinforcing pre-assembling column assembly, wherein a lower supporting bar is coupled to a lower surface of the second lower supporting angle portion protruding outside the column.

According to another preferred embodiment of the present invention, an end portion of the basic reinforcing portion is formed to be inclined downward so as to have a longer length.

The present invention has the following effects.

First, since the foundation reinforcing portion is integrally connected to the lower portion of the pre-assembly column assembly, reinforcement of the foundation plate of the column can be completed only by installing the pre-assembly column assembly. Therefore, it is possible to reinforce the base plate of the column part and simplify the process, thereby improving the workability, shortening the air and reducing the construction cost.

Second, punching failure of the base portion can be prevented by the base reinforcing portion. In addition, since the flexural rigidity and the shear rigidity of the foundation are increased, the thickness of the foundation can be reduced. Therefore, it is economical because it can reduce the amount of tidal water and the amount of concrete required.

Third, since the pre-reinforced portion is pre-assembled to the pre-assembled column assembly, the accuracy of construction can be improved. In addition, the height of the prefabricated section can be adjusted to control the verticality of the prefabricated column assembly, thus enabling precise construction.

Fourth, when the prefabricated column assembly of the steel frame is installed on the foundation, it is possible to omit the anchor bolt and anchor plate installation work in the field construction.

Fifth, when the first reinforcing portion or the second reinforcing portion constituting the basic reinforcing portion, that is, the lower supporting angle, the upper supporting angle, and the connecting angle connecting the members are formed by trusses, a light reinforcing basic reinforcing portion have.

Sixth, considering the punching failure surface of the foundation, if the end portion of the base reinforcement portion is formed to be inclined downward so that the bottom length becomes long, the amount of steel for construction of the base reinforcement portion can be saved, which is economical.

1 is a plan view showing a conventional stiffener according to the prior art;
2 is a perspective view showing an integral pre-assembling column of the present invention base reinforcing part.
3 is a side sectional view showing a state in which an integral reinforcing pre-assembly post of the present invention is installed.
4 is a perspective view showing an integrated pre-assembling column of the present invention having a second reinforcing portion.
5 is a perspective view showing an integral prefabricated column of a basic reinforcing part of the present invention provided with a lower supporting bar;

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

FIG. 2 is a perspective view showing an integrated pre-assembling column of the present invention, and FIG. 3 is a side sectional view showing a state in which an integrated pre-assembling column of the present invention is installed.

As shown in FIGS. 2 and 3, the pre-assembled pre-assembled pre-assembly column assembly of the present invention includes a plurality of pre-assembled pre-assembled column assemblies disposed at positions spaced apart from the outer surfaces of the columns at respective corners of the columns, And a plurality of transverse support members (32) connecting the cast steel (31) and the cast steel (31) in a transverse direction; A base reinforcement 4 coupled to the mold steel 31 of the pre-assembly column assembly 3 so as to be embedded in the foundation concrete 23 and protruding by a predetermined length from the outer surface of the pre-assembly column assembly 3; . ≪ / RTI >

The present invention is to provide a prefabricated prefabricated prefabricated column assembly in which a base reinforced portion (4) is integrally connected to a lower portion of a factory prefabricated column assembly (3).

The pre-assembly column assembly 3 is constituted by a plurality of transverse support members 32 interconnecting a plurality of mold steels 31 disposed at corner edges and a neighboring mold steel 31.

Shaped steel material can be further disposed between the cast steel materials 31 arranged at the corners depending on the size of the column.

The mold steel 31 is located inside the column at a certain distance from the outer surface of the column to secure the coating thickness.

The pre-assembled column assembly 3 may be configured to have an entire height of the column or only a part of the column bottom.

The basic reinforcing portion 4 is a portion to be embedded in the foundation concrete 23 and is joined to the mold steel 31 of the pre-assembly column assembly 3. [

The base reinforcing portion 4 is formed to protrude outside the pre-assembly column assembly 3 by a predetermined length. Therefore, since the base reinforcing portion 4 supports the lower portion of the pre-assembly column assembly 3, the pre-assembly column assembly 3 can be stably installed. Further, since the vertical height of the pre-assembly column assembly 3 can be adjusted by adjusting the height of the bottom of the basic reinforcement section 4, the vertical degree adjustment work is easy.

The basic reinforcing part (4) is configured so as to protrude more than a dangerous cross section around the column.

The base reinforcing portion 4 serves as a cradle of the upper reinforcing bar 22 constituting the base portion 2. [ Accordingly, a supporting steel bar for supporting the upper reinforcing bar 22 when the upper reinforcing bar 22 is being assembled, that is, a steel reinforcing bar, is not required.

The base reinforcing portion 4 reinforces the base of the lower portion of the column to prevent punching failure of the base portion 2, and increases the bending and shearing rigidity. As a result, the thickness of the foundation 2 can be reduced, so that the amount of the concrete for the foundation plate construction and the amount of concrete required can be reduced.

In addition, when the prefabricated column assembly of the steel frame is installed on the foundation, it is possible to omit construction of the anchor bolt and anchor plate in the field construction.

The prefabricated reinforced portion 4 may be integrally manufactured at the time of manufacturing the prefabricated column assembly 3 in the factory or the prefabricated column assembly 3 may be brought into the field and then reinforced It is also possible to assemble the part 4.

A process of constructing the foundation 2 using the present invention is described as follows.

First, the concrete is laid to form the abandoned concrete layer 1, and then the lower reinforcing bar 21 of the foundation 2 is installed on the abandoned concrete layer 1. Then,

Thereafter, an integral pre-assembling column assembly according to the present invention is installed on the lower reinforcing bar (21). At this time, the vertical height of the pre-assembly column assembly 3 can be adjusted by adjusting the height of the base reinforcement 4. [

Since the base reinforcing portion 4 is provided on the upper portion of the lower reinforcing bar 21, a spacer (not shown) is formed on the upper surface of the shrinking concrete layer 1 so that the base reinforcing portion 4 can be supported on the lower reinforcing bar 21, Can be installed.

Next, the upper reinforcing bars 22 of the base part 2 are installed on the base reinforcing part 4, and the foundation part 2 is completed by pouring the base part concrete.

According to the present invention, since the base reinforcing portion 4 is integrally coupled to the lower portion of the pre-assembly column assembly 3, reinforcement of the base plate of the column can be completed only by installing the pre-assembly column assembly 3 .

Therefore, it is possible to shorten the air required for the foundation plate construction and to facilitate the construction.

In addition, punching failure of the base portion 2 can be prevented by the base reinforcing portion 4, and warpage and shearing rigidity are increased, so that the thickness of the base portion 2 can be reduced. Therefore, it is possible to reduce the amount of tidal water and the amount of concrete required.

2 and 3, the basic reinforcing part 4 is mounted on the upper surface of the ground or abandoned concrete layer 1 and is coupled to one side of the cast steel 31 to form a pre-assembly column assembly 3, A plurality of first upper supporting angles 41 disposed on one side of the mold steel 31 so as to be spaced a predetermined distance from the upper side of the first lower supporting angles 41, And a first reinforcing portion 4a composed of a supporting angle 42 and a connecting angle 43 connecting the first lower supporting angle 41 and the corresponding first upper supporting angle 42 to each other, .

That is, the basic reinforcing portion 4 may be composed of the first reinforcing portion 4a.

The first reinforcing portion 4a is composed of a first lower support angle 41, a first upper support angle 42, and a connecting angle 43 connecting these members.

The first lower support angles 41 are mounted on the upper surface of the ground or abandoned concrete layer 1.

The first upper support angle 42 is disposed at a predetermined distance from the upper portion of the first lower support angle 41.

At this time, the first lower support angle 41 and the first upper support angle 42 are coupled to one side of the mold steel 31 constituting the pre-assembling column assembly 3.

The first lower support angle 41 and the leg surfaces of the first upper support angle 42 are brought into close contact with one side leg surface of the cast steel 31 to be bolt- have.

In this case, since the base reinforcing portion 4 can be joined to the pre-assembly column assembly 3 only by bolting without a welding process, the quality is excellent.

A plurality of the first lower support angles 41 and the first upper support angles 42 may be disposed in any one direction of the pre-assembly column assembly 3.

The first lower support angle 41 and the first upper support angle 42 may be coupled to each other by a connecting angle 43. The first lower support angle 41 and the first upper support angle 42 and / When the connecting angle 43 is formed by a truss, the basic reinforced portion 4 having a light weight and excellent rigidity can be formed.

It is possible to adjust the height of the basic reinforcing portion 4 and the verticality of the pre-assembly column assembly 3 by inserting a simplex or the like into the lower portion of the first lower support angle 41. [

The upper reinforcing bars 22 of the base portion 2 may be mounted on the upper portion of the first upper supporting angle 42 when the basic reinforcing portion 4 includes the first reinforcing portion 4a.

4 is a perspective view showing an integrated pre-assembling column of the present invention having a second reinforcing part.

4, the basic reinforcing portion 4 is disposed in a direction orthogonal to the first reinforcing portion 4a. The first reinforcing portion 4a is provided on the upper surface of the first lower supporting angle 41, A second lower support angle 44 coupled to one side of the mold steel 31 so as to traverse the angle 41, a plurality of first upper support angles A second upper support angle 45 coupled to one side of the mold steel 31 so as to traverse the second upper support angle 44 and a second upper support angle 45 corresponding to the second lower support angle 44, And a second reinforcing portion 4b composed of a connecting angle 46 for connecting the first and second reinforcing portions.

The basic reinforcing portion 4 may include a first reinforcing portion 4a and a second reinforcing portion 4b that are orthogonal to each other.

The first reinforcing portion 4a and the second reinforcing portion 4b reinforce the base reinforcing portion 4 in two directions around the pillar.

The second reinforcing portion 4b is composed of a second lower support angle 44, a second upper support angle 45, and a connecting angle 46 interconnecting these members.

The second lower support angle (44) is provided on the upper surface of the first lower support angle (41).

Since the second lower support angle 44 is located on the upper portion of the first lower support angle 41, the height of the basic reinforcement 4 and the vertical degree of the pre- Can be adjusted by the support angle (41).

The second lower support angle (44) is installed across the plurality of first lower support angles (41).

The second upper support angle 45 is provided on the upper surface or the lower surface of the first upper support angle 42.

The second upper support angle 45 is installed across a plurality of first upper support angles 42.

At this time, the second lower support angle 44 and the second upper support angle 45 are coupled to one side of the cast steel 31 constituting the pre-assembly column assembly 3.

The second lower support angle 44 and the second upper support angle 45 can bolt the surfaces of the respective legs to one side leg surface of the mold steel 31 as in the first reinforcement member 4a.

The second lower support angle 44 and the second upper support angle 45 may be coupled to each other by a connecting angle 46 and the second lower support angle 44, The connecting angles 46 may be joined in a truss-like manner.

In the embodiment of FIG. 4, the second upper support angle 45 is disposed in close contact with the lower portion of the first upper support angle 42.

However, in order to make the rigidity of the first reinforcement portion 4a and the second reinforcement portion 4b the same, that is, the distance between the first lower support angle 41 and the first upper support angle 42 and the distance between the second lower support angle & The second upper support angle 45 may be provided on the upper portion of the first upper support angle 42 so that the distance between the first upper support angle 44 and the second upper support angle 45 is the same. In this case, it is preferable that the first upper support angle 42 and the second upper support angle 45 be formed so that leg faces facing each other can be closely contacted to each other.

5 is a perspective view showing an integrated pre-assembling column of the present invention having a lower support bar.

As shown in FIG. 5, the lower support bar 48 may be coupled to the lower surface of the second lower support angle 44 protruding outside the column.

Since the lower portion of the first lower support angle 41 is positioned adjacent to the upper portion of the ground or the shrunk concrete layer 1 in the direction of the first reinforcing portion 4a, the height of both ends of the first lower support angle 41 It is easy to adjust the height of the base reinforcing portion 4 and the verticality of the pre-assembly column assembly 3. [

On the other hand, since the second lower support angles 44 are spaced apart from the bottom of the ground or the shrink concrete layer 1 by the height of the first lower support angle 41, it is not easy to adjust the height or the vertical degree.

Of course, it is also possible to adjust the height or the vertical degree by adjusting the height between the first lower support angles 41 mutually adjacent in the width direction. However, since the maximum width of the first lower support angle 41 is within the column width, not.

The lower support bar 48 can be coupled to the lower portion of the second lower support angle 44 so that the height of the second reinforcement portion 4b can be adjusted at the end of the second lower support angle 44. [

The lower support bar 48 may be installed in the same direction as the second lower support angle 44 or in a direction perpendicular to the second lower support angle 44.

2, 4 and so on, the end portion of the base reinforcing portion 4 may be formed to be inclined downward so that the bottom length becomes long.

The foundation around the column is tensioned at the bottom and the punching failure surface is formed sloping downward outward.

Therefore, when the length of the upper support angles 42 and / or 45 is short and the length of the lower support angles 41 and / or 44 is long considering the punching failure surface, the amount of steel can be saved.

1: abandoned concrete layer 2: foundation part
21: lower reinforcing bar 22: upper reinforcing bar
23: foundation concrete 3: pre-assembly column assembly
31: cast steel 32: transverse support member
4: basic reinforcing portion 4a: first reinforcing portion
4b: second reinforcing portion 41: first lower support angle
42: first upper support angle 43: connecting angle
44: second lower support angle 45: second upper support angle
46: connecting angle 48: lower support bar

Claims (5)

(31) arranged at each of the corners of the column at a position spaced apart from the outer surface of the column to form a steel composite concrete column, and a plurality of transversely connecting transverse webs A pre-assembly column assembly 3 comprising a support member 32; And
A base reinforcement 4 coupled to the mold steel 31 of the pre-assembly column assembly 3 to be embedded in the base concrete 23 and protruding a predetermined length from the outer surface of the pre-assembly column assembly 3; Wherein the first reinforcing part and the second reinforcing part are integrally formed.
The method of claim 1,
The basic reinforcing part 4 is mounted on the upper surface of the ground or shrink concrete layer and is joined to one side of the mold steel 31 to form a plurality of first lower parts A plurality of first upper support angles 42 coupled to one side of the cast steel 31 so as to be spaced apart from the upper portion of the first lower support angle 41 by a predetermined distance, And a first reinforcing part (4a) composed of a connecting angle (43) connecting the angle (41) and a corresponding first upper supporting angle (42) .
3. The method of claim 2,
The base reinforcing portion 4 is disposed in a direction orthogonal to the first reinforcing portion 4a so as to cross a plurality of first lower supporting angles 41 on the upper surface of the first lower supporting angle 41 A second lower support angle 44 coupled to one side of the cast steel 31 and a second lower support angle 44 extending across the plurality of first upper support angles 42 on the upper or lower surface of the first upper support angle 42. [ A second upper support angle 45 coupled to one side of the first upper support angle 31 and a connection angle 46 connecting the second lower support angle 44 and the corresponding second upper support angle 45 Further comprising a second reinforcing portion (4b) formed on the first reinforcing portion.
4. The method of claim 3,
And a lower support bar (48) is coupled to the lower surface of the second lower support angle (44) protruding from the column.
The method of claim 1,
Wherein an end of the basic reinforcement part (4) is formed to be inclined downward so that a lower length thereof becomes longer.

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