KR20210037988A - Composite concrete column and construction method using the same - Google Patents

Abstract

The present invention relates to a composite concrete column and a building construction method using the same, wherein the composite concrete column comprises: upper and lower concrete column units extending in a longitudinal direction while having an exposure unit placed therebetween; and H-shaped steel exposed while being coupled to a portion between the lower end of the upper concrete column unit and the upper end of the lower concrete column unit in the exposure unit. Moreover, a plurality of through holes are formed in the H-shaped steel in the exposure unit so that a slab reinforcing bar can pass therethrough.

Description

Composite concrete column and construction method using the same}

The present invention relates to a concrete composite column and a building construction method using the same, and more particularly, to a concrete composite column capable of easily reinforcing reinforcing bars and improving structural stability and reliability, and a construction method for a building using the same. will be.

The structural form of the so-called'ramenjo' consists of columns, beams, and slabs. In the case of constructing such a concrete ramen building, columns and beams are installed, and a slab formwork is formed with reinforcing bars on them, and then concrete is poured. In general, in the above construction, since all processes of installing columns, beams, and slab formwork and pouring concrete are performed at the construction site, complicated steps, manpower, and time are required.

In order to minimize the amount of work at the building construction site and shorten the construction period, a concrete composite column composed of H-beams and concrete columns has been proposed in Korean Patent No. 0797194.

According to the above patent, the operator can complete the building structure by installing a pre-manufactured concrete composite column and simply connecting the beams thereto, so there is an advantage in that the construction is simple and the construction time can be shortened compared to the conventional method.

On the other hand, in the construction of connecting columns and beams and constructing slabs, the reinforcing bars installed along the beams interfere at the point where they meet the columns, so they cannot be extended any more and are bound to be broken.

In addition, when reinforcing and pouring reinforcing bars on both sides around the column as above, it is very inconvenient to perform the welding separately, and the fixing length must be secured so that the load on both sides of the column can be transmitted. Inconvenient cases may occur.

The present invention was invented in consideration of the above problems, and by allowing the reinforcing bar for slab to be continuously extended and installed through the column, not only is it very easy to construct, but also in terms of structural strength, it is possible to increase stability and reliability. The purpose of this is to provide a concrete composite column and a building construction method using the same.

In order to achieve the above object, the concrete composite pillar according to a preferred embodiment of the present invention includes upper and lower concrete pillars extending in a longitudinal direction with an exposed portion therebetween; And an H-beam exposed while being coupled between the lower end of the upper concrete pillar and the upper end of the lower concrete pillar at the exposed portion, wherein a plurality of through holes are formed in the H-beam in the exposed portion to allow the slab reinforcement to pass. .

Here, the through hole is composed of a first through hole formed in a flange provided in parallel with the H-beam, and a second through hole formed in a web connecting the flange, and the first through hole and the second through hole are Formed at different heights.

According to the present invention, the concrete composite pillar has the first H-beam at the lower end of the first concrete composite pillar at the top, and the end of the second H-beam at the upper end of the second concrete composite pillar at the lower side. It is constructed by welding or bonding by separate plates or brackets.

Preferably, a plurality of brackets to which beams are coupled are formed on the side of the H-beam exposed through the exposed portion.

According to another embodiment of the present invention, a beam is coupled to the H-beam by a coupling bracket, and the coupling bracket has a through hole corresponding to the through hole, and a plane coupled to the flange or web of the H-beam Coupling part;

And a fastening hole for connecting the beam, and is configured to have a vertical coupling portion protruding vertically from the center of the plane coupling portion.

According to another embodiment of the present invention, a pair of horizontal brackets formed between the flanges of the H-beam; And a vertical bracket protruding between the horizontal brackets.

According to another embodiment of the present invention, a T-shaped bracket having a vertical protruding end welded to the web of the H-beam and a horizontal bottom to which both ends are welded to the flange; And an angle bracket fixed to the bottom of the horizontal floor of the T-shaped bracket.

Preferably, the concrete composite pillar may be configured by welding the ends of the two concrete composite pillars to each other or bonding by separate plates or brackets.

According to another aspect of the present invention, the upper and lower concrete pillars extending in the longitudinal direction with the exposed portion interposed therebetween, and the exposed portion is exposed while being coupled between the lower end of the upper concrete pillar and the upper end of the lower concrete pillar. At the same time, installing a concrete composite column including H-beam formed with a plurality of through-holes; Coupling the end of the beam to the H-beam in the exposed portion of the concrete composite column; Installing a slab reinforcing bar extending along the beam to pass through the through hole of the H-beam; Installing a formwork on the concrete composite columns and beams; And the step of pouring and curing concrete in the formwork; is provided a building construction method comprising a.

Preferably, in the method of the present invention, the through hole is composed of a first through hole formed in a flange provided parallel to the H-beam, and a second through hole formed in a web connecting the flange, and at the same time, the first through hole The ball and the second through hole are formed at different heights, and the first slab reinforcement extending in one direction along the beam is installed to pass through the first through hole, and a second slab extending in a direction perpendicular to the first slab reinforcement The reinforcing bar is installed to pass through the second through hole.

According to another embodiment of the present invention, the through-holes are formed in the first through-holes respectively formed in the upper and lower portions of the flanges provided side by side in the H-beam and the upper and lower portions of the web connecting the flanges. Consisting of a second through-hole, the first through-hole and the second through-hole are provided with concrete composite columns formed at different heights.

In addition, according to another aspect of the present invention, the upper and lower concrete pillar portions extending in the longitudinal direction with the exposed portion therebetween, and while being coupled between the lower end of the upper concrete pillar portion and the upper end of the lower concrete pillar portion in the exposed portion Installing a concrete composite column including H-beams exposed and having first through holes at the upper and lower portions of the flange, and second through holes at the upper and lower portions of the web connecting the flanges; Coupling the end of the beam to the H-beam in the exposed portion of the concrete composite column; Installing a slab reinforcing bar extending along the beam to pass through the first or second through hole of the H-beam; Fixing the end of the slab reinforcing bar extending along the beam through the first or second through hole of the H-beam with a fixing member; Installing a formwork on the concrete composite columns and beams; And the step of pouring and curing concrete in the formwork; is provided a building construction method comprising a.

According to the present invention, without cutting the slab reinforcing bar extending along the beam at the point where it meets the column, it can be continuously extended through the through hole formed in the H-beam. Therefore, reinforcement reinforcement and construction are very easy when constructing a slab.

In addition, since the slab reinforcing bar penetrates the column and extends to the opposite side, it is possible to secure the moment strength around the column without securing a fixing length through welding or the like.

In particular, according to the present invention, since the slab reinforcement is continuously connected to both sides around the column, structural stability and reliability can be secured.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor appropriately explains the concept of terms in order to explain his or her invention in the best way. Based on the principle of being able to define

It should be interpreted as a meaning and concept consistent with the technical idea of the present invention. Therefore, the configuration shown in the embodiments and drawings described in the present specification is only the most preferred embodiment of the present invention and does not represent all of the technical idea of the present invention, It should be understood that there may be equivalents and variations.

1 shows the configuration of a concrete composite column according to an embodiment of the present invention.

Referring to the drawings, the concrete composite pillar according to the present invention is exposed while being coupled between the concrete pillar portions 10 and 20 extending in the longitudinal direction and the ends of the concrete pillar portions 10 and 20 It includes the H-beam (30).

The concrete pillar portions 10 and 20 are portions constituting the pillar body, and preferably, the cross section may have various shapes such as a square and a circle.

The concrete pillar portion may be composed of an upper concrete pillar portion 10 and a lower concrete pillar portion 20, and between the lower end of the upper concrete pillar portion 10 and the upper end of the lower concrete pillar portion 20, H-beam 30 ) Exposed portion 15 is formed. As will be described later, the end of the beam is coupled to the exposed portion 15, and thus, the exposed portion 15 corresponds to the height of the point at which the slab is formed.

The H-beam 30 is coupled to the concrete pillars 10 and 20 by embedding both ends of the H-beam 30 in the concrete pillars 10 and 20. That is, the upper end of the H-beam 30 is buried near the lower end of the upper concrete pillar portion 10, and the lower end of the H-beam 30 is buried near the upper end of the lower concrete pillar portion 20. More preferably, a plurality of stud members (not shown) are formed together with an embedded plate on the side of the H-beam 30 buried in the concrete pillars 10 and 20 to be combined with the concrete pillars. You can also make it more robust.

According to the present invention, a plurality of through-holes 30a and 30b are formed in the H-beam 30 in the exposed portion 15 so that the slab reinforcement can pass therethrough. That is, the through hole is a web connecting the first through hole 30a formed in the flanges 31 and 32 positioned parallel to both sides of the H-beam 30 and the flanges 31 and 32 It consists of a second through hole (30b) formed in (33).

The number of the through holes 30a and 30b is not particularly limited by the present invention, and may be appropriately set in consideration of the scale and required strength of columns, beams, and slabs.

According to the present invention, the first through-hole (30a) and the second through-hole (30b) are formed to deviate from each other at different heights, which is a slab reinforcement extending through each of the through-holes (30a, 30b) This is to avoid interference. Accordingly, the slab reinforcing bar penetrating the first through hole 30a forms a right angle with respect to the slab reinforcing bar penetrating the second through hole 30b.

The configuration of the concrete column portions 10 and 20 and the H-beam 30 may be variously modified, and one such example is shown in FIG. 2. The concrete composite column according to the present embodiment is also upper and lower. A plurality of through-holes (30a) (30b) are exposed between the concrete pillars (10') (20') and the concrete pillars (10') (20') so that the slab reinforcement can pass through. It has an H-beam 30 formed.

In addition, the concrete composite column includes a plurality of reinforcing bars 40 extending in parallel in the longitudinal direction so as to be buried in the concrete column portions 10 ′ and 20 ′ around the H-beam 30.

In this case, the reinforcing reinforcing bar 40 may be installed in an appropriate position so as not to interfere with the extension of the slab reinforcing bar through the through holes 30a and 30b.

Preferably, a plurality of brackets 42 may be formed on the side of the H-beam 30 of the exposed portion 15 ′ between the concrete pillar portions 10 ′ and 20 ′ so that the beams may be coupled.

The bracket 42 may be formed by welding a'T'-shaped steel frame member with a fastening hole 42a to the side of the H-beam 30. However, the configuration of the bracket is not limited by the embodiment of the present invention, it should be understood that any method can be adopted as long as it is any configuration that can be coupled by the end of the beam and the fastening member.

In addition, a support portion 22 further extended laterally may be further included at a portion of the upper end of the concrete column portions 10 and 20 so that the ends of the beams to be coupled can be stably mounted.

Although the configuration of the concrete composite column has been described with limited drawings and examples in this specification, the configuration of the concrete column part and the H-beam used in the concrete composite column of the present invention encompasses all the embodiments disclosed in Patent Registration No. 0797194. Therefore, it should be understood that examples of all concrete columns disclosed in the patent are included as embodiments of the present invention, even if the configuration is not individually listed in the specification and drawings.

Then, a method of constructing a building using the concrete composite column of the present invention having the above configuration will be described.

First, a concrete composite pillar manufactured in advance according to the present invention is installed on the ground of a construction site. At this time, in the concrete composite pillar, it is installed so that the lower end of the lower concrete pillar part 20 is fixed to the ground. The method of installing such a pillar is not particularly limited by the present invention.

Subsequently, the end of the beam is coupled to the H-beam 30 in the exposed portion 15 of the concrete composite column. In the present invention, the see refers to a structure including a steel frame (H-beam) itself or a steel frame (H-beam). More preferably, the beam includes a concrete composite beam as shown in FIG. 3. The term'beam' in the claims is defined as encompassing both the steel frame itself and the concrete composite beam including the steel frame.

The concrete composite beam includes a steel frame 50, a stirrup reinforcing bar 51 installed at predetermined intervals on the steel frame 50, and a concrete member 52 cast to bury at least a portion of the steel frame 50 do.

The stirrup reinforcing bar 51 serves to evenly distribute the compressive force acting in the longitudinal direction of the steel frame 50 over the cross-section of the steel frame and to resist shearing force acting perpendicular to the cross-section.

The concrete member 52 is integrally formed along the longitudinal direction to fill at least a part of the steel frame 50. Preferably, the concrete member 52 is formed to fill at least a part of the lower flange 53.

The concrete member 52 effectively resists bending stress and compressive force acting in the axial direction together with the steel frame 50. In addition, the concrete member 52 effectively responds to the bending stress by increasing the secondary moment of the cross-section of the concrete composite beam.

In addition, both ends of the steel frame 50 are not buried in the concrete member 52 and remain exposed, which is to connect the concrete composite beam to the concrete composite column of this embodiment. For this purpose, a fastening hole 50a may be formed at an end of the exposed steel frame 50.

Preferably, the concrete composite beam may further include a tensile/compression reinforcement reinforced in the longitudinal direction. The tensile/compression reinforcement resists tensile stress and compressive stress acting on the concrete composite beam. Preferably, the tension/compression reinforcement is embedded in the concrete member 52 under the steel frame 50 and a plurality of buried reinforcing bars 54 extending in the longitudinal direction and not embedded in the concrete member 52 It includes the exposed reinforcing bar 55 that is exposed.

The exposed reinforcing bar 55 is buried in the slab together with other slab reinforcing bars when concrete is poured. Therefore, in the present specification, since these are collectively referred to as slab reinforcement, it should be understood that the exposed reinforcement is also included therein.

Until now, the configuration of the concrete composite beam has been described in detail with reference to the drawings, but the beam that can be constructed by the method of the present invention is not limited to this, and described in Patent No. 0640250, Patent No. 0761785, Patent No. 0766786, etc. It is to be understood that both can be applied to the present invention.

4 shows a state in which the concrete composite beam 200 is coupled to the H-beam 30 of the concrete composite column 100 according to a preferred embodiment of the present invention.

Specifically, the end of the steel frame 50 of the concrete composite beam 200 is coupled by welding to the H-beam 30 in the exposed portion 15 of the concrete composite column. As another alternative, when the bracket 42 is provided in the H-beam 30 of the concrete composite column as shown in FIG. 2, the end of the steel frame 50 of the concrete composite beam 200 in the bracket 42 The bracket 42 and the ends of the steel frame 50 may be directly coupled to each other through a coupling plate (not shown).

Another method of coupling the concrete composite beam 200 to the H-beam 30 of the concrete composite column 100 is illustrated in FIGS. 12 to 14. Here, the same reference numerals as in the drawings shown above indicate members having the same function.

According to this embodiment, the concrete composite beam 200 is coupled to the H-beam 30 of the concrete composite pillar 100 by a coupling bracket, the coupling bracket of the H-beam 30 of the concrete composite pillar 100 It includes a plane coupling portion 70 coupled to the flange 31, 32 or the web 33, and a vertical coupling portion 71 protruding vertically from the center of the plane coupling portion 70.

The plane coupling part 70 has a through hole 70a corresponding to the first through hole 30a or the second through hole 30b, and a beam is connected to the vertical coupling part 71 as described later. A fastening hole 71a for doing so is formed.

As shown in Fig. 14, the flat coupling portion 70 of the coupling bracket is coupled to the H-beam 30 of the concrete composite column 100. That is, the plane coupling portion 70 is coupled to the flange 31, 32 of the H-beam 30 or the web 33 by the fastening bolt 81. At this time, the through hole 70a is the first through hole It is aligned to coincide with the (30a) or the second through hole (30b), thereby allowing the slab reinforcement to be described later to pass.

At the same time, the web portion at the end of the steel frame 50 of the concrete composite beam 200 is coupled to the vertical coupling portion 71, and the fastening hole 50a formed at the end of the steel frame 50 and the vertical coupling portion 71 are fastened. This coupling is achieved by inserting and fixing the fastening bolt 82 with the ball 71a.

Preferably, the flange portion of the end of the steel frame 50 is fixed to the H-beam 30 of the concrete composite column 100 by welding.

15 and 16 show a method of combining a concrete composite column 100 and a large concrete composite beam 200 according to another embodiment of the present invention. Here, the same reference numerals as in the drawings shown above denote the same members.

According to this embodiment, a pair of horizontal brackets 72 are fixed by welding between the flanges 31 and 32 of the H-beam 30 in the exposed portion 15 of the concrete composite column 100. The horizontal bracket 72 is spaced apart and fixed at the same distance as the flanges in the steel frame 50 of the concrete composite beam 200.

In addition, the vertical bracket 73 is fixed to protrude between the horizontal brackets 72, and a fastening hole 73a is formed therein. This vertical bracket 73 is for the web in the steel frame 50 of the concrete composite beam 200 is coupled.

16 shows a state in which the concrete composite beam 200 is coupled to the concrete composite column 100 of the present embodiment.

As shown, the web portion of the end of the steel frame 50 of the concrete composite beam 200 is coupled to the vertical bracket 73, and at this time, the fastening bolt 83 is formed in the steel frame 50 and the fastening hole 50a Both are coupled by being fastened through the fastening hole 73a formed in the vertical bracket 73.

In addition, the flange portion of the end of the steel frame 50 is fixed to the horizontal bracket 72 by welding to increase the rigidity of the coupling.

17 and 18 show a combination of a concrete composite column 100 and a concrete composite beam 200 according to another embodiment of the present invention. Here, the same reference numerals as in the previous drawings indicate the same members.

According to this embodiment, the T-shaped bracket 74 is coupled to the H-beam 30 in the exposed portion 15 of the concrete composite column 100.

The T-shaped bracket 74 is coupled by welding the vertical protruding end to the web 33 of the H-beam 30, and welding both ends of the horizontal bottom to the flanges 31 and 32, respectively. Accordingly, the bottom surface of the horizontal bottom of the T-shaped bracket 74 is exposed outward.

An angle bracket 75 is fixed to the exposed bottom of the horizontal floor, and a plurality of fastening holes 75a are formed in the angle bracket 75.

18, the web portion of the end of the steel frame 50 of the concrete composite beam 200 is fixed to the T-shaped bracket 74 and the angle bracket 75, specifically, the flange end of the steel frame 50 While being welded to the bottom of the horizontal bottom of the T-shaped bracket 74, align the fastening hole 50a formed in the web portion of the end of the steel frame 50 and the fastening hole 75a formed in the angle bracket 75, and then fasten it. Fix by inserting the bolt (84).

The various coupling methods described so far can be independently selected and applied to the flanges 31, 32 and the web 33 of the H-beam 30, respectively. That is, the coupling method for the flanges 31 and 32 and the coupling method for the web 33 may be applied differently from each other.

According to another preferred embodiment of the present invention, a configuration is disclosed in which two concrete composite columns are connected vertically and a beam is connected to the connection part.

That is, referring to FIG. 19, the first H-beam 30' at the lower end of the first concrete composite pillar 100' at the top, and the first H-beam 30' at the lower end of the second concrete composite pillar 100' at the bottom. 2 It is possible to obtain a concrete composite column integrally formed by welding the ends of the H-beam 30" in parallel with each other.

At this time, preferably, a plurality of through-holes 30a and 30b through which the slab reinforcement can penetrate is formed in the first H-beam 30 ′.

When the two concrete composite columns are connected in this way, the part where the two H-beams (30') (30") are connected is the exposed part, which serves as the point where the beams are joined, and at the same time, the concrete Is the upper concrete pillar, and the concrete of the first concrete composite pillar 100" will be the lower concrete pillar.

Since the method of connecting the beam or the concrete composite beam to the H-beam in the exposed portion of the concrete composite column thus obtained is applied in the same manner as in the above-described embodiment, a detailed description thereof will be omitted.

In addition, the first and second H-beams 30 ′ and 30 ″ of the first and second concrete composite columns 100 ′ and 100 ″ may be connected by separate plates or brackets.

5 shows a state in which four concrete composite beams 200 are coupled to the H-beam 30 of the concrete composite column 100.

Preferably, the concrete composite beam 200 is coupled so that the front end of the concrete member 52 is mounted on the upper surface of the lower concrete pillar portion 20 of the concrete composite pillar, and as shown in FIG. When the support part 22 is provided in 20), it is placed and mounted on the support part 22. When such mounting is performed, it is easy to connect the concrete composite beam to the concrete composite column, and structural stability according to the coupling can be achieved.

As described above, after the installation of the concrete composite column and the composite beam is completed, the slab reinforcement and formwork are then installed. 6 and 7 show a state in which the slab reinforcing bars 60 and 62 are laid according to a preferred embodiment of the present invention.

According to the present invention, the slab reinforcement 60 and 62 extending along the concrete composite beam 200 passes through the through-holes 30a and 30b formed in the H-beam 30 of the concrete composite column. That is, the first slab reinforcement 60 extending in one direction along the concrete composite beam 200 passes through the first through hole 30a formed in the flanges 31 and 32 of the H-beam 30 of the concrete composite column. And, the second slab reinforcement 62 extending in a direction perpendicular to the first slab reinforcement 60 is installed to pass through the second through-hole 30b formed in the web 33 of the H-beam 30.

At this time, since the first through-hole 30a and the second through-hole 30b are formed at different heights, the first slab reinforcement 60 and the second slab reinforcement 62 may extend without interfering with each other.

Meanwhile, a formwork structure such as a deck plate 300 may be installed between the concrete composite beams 200 as shown in FIG. 8. The installation and construction method of the deck plate 300 may be performed as disclosed in Patent No. 0761786, and thus detailed descriptions thereof will be omitted in this specification.

Although not shown in the drawings, reinforcing bars for slabs may be laid on the deck plate 300 in various ways. Since the present invention proposes a construction method for the slab reinforcement extending along the concrete composite beam and interfering with the H-beam of the concrete composite column, there are no restrictions on the construction of the reinforcement installed at points other than the concrete composite beam.

As described above, the slab structure is constructed by placing and curing concrete on the slab reinforcement and the installation of the formwork. 9 schematically shows the built slab structure.

The construction method of a building using a concrete composite column according to a preferred embodiment of the present invention can be applied equally to the outer part of the building where the wall is constructed.

10 and 11 show a state in which three concrete composite beams 200 are coupled to a concrete composite column installed on the outer part of a building. Here, the first slab reinforcement 60' passes through the through hole formed in the flanges 31 and 32 of the H-beam 30 in the concrete composite column, and the second slab reinforcement 62' is an H-beam 30 ) Passes through the through hole formed in the web (33). In this embodiment, there is a difference in the number of concrete composite beams to be combined, but the construction method is the same as in the above-described embodiment, so a detailed description thereof is omitted.

Figure 20 shows a partial configuration of a concrete composite column according to another preferred embodiment of the present invention.

Referring to the drawings, the concrete composite pillar according to the present embodiment is coupled between the upper and lower concrete pillar portions 10 and 20 extending in the longitudinal direction and the ends of the concrete pillar portions 10 and 20 It includes the H-beam 30 that is exposed as it is.

According to the present embodiment, a plurality of through holes 30a, 30a', 30b, 30b' are formed in the H-beam 30 so that the slab reinforcement can pass therethrough. That is, the through-holes include first through-holes 30a, 30a', respectively formed in the upper and lower portions of the flanges 31 and 32 of the H-beam 30, and the flanges 31 and 32. It is composed of second through-holes 30b and 30b' respectively formed in the upper and lower portions of the connecting web 33. Other through-holes correspond to fastening holes for coupling brackets, etc.

Preferably, the first through hole (30a) (30a') and the second through hole (30b) (30b') are formed to deviate from each other at different heights, and each through hole (30a) (30a') (30b) ) (30b') so that the reinforcing slab extending through it does not interfere with each other.

21 and 22 show a state in which the concrete composite beam is coupled to the concrete composite column of the embodiment according to FIG. 20. In this embodiment, it shows an example in which four concrete composite beams 210, 220, 230, and 240 are coupled to a concrete composite column. In this embodiment, since the H-beam of the concrete composite beam 210, 220, 230, 240 can be combined with the H-beam 30 of the concrete composite column, the description has been omitted. .

Referring to the drawings, the slab reinforcement provided in the concrete composite beam 210, 220, 230, 240 includes upper reinforcing bars 60a, 62a and lower reinforcing bars 60b (see 62b in FIG. 23). do.

In this embodiment. In the concrete composite column, the concrete composite beam 210, 220 coupled to the flange 31, 32 of the H-beam 30 and the concrete composite beam 230, 240 coupled to the web 33 The installation methods are different from each other.

Specifically, the upper reinforcing bar (60a) and the lower reinforcing bar (60b) provided in the concrete composite beam (210, 220) coupled to the flange (31) (32) of the H-beam (30) has an end of the flange (31) After passing through the first through-holes 30a and 30a ′ respectively formed in the upper and lower portions of the 32 by a predetermined length (preferably, within 5 cm), the ends are fixed to the flanges 31 and 32. At this time, the ends of the upper and lower reinforcing bars 60a and 60b are fixed to the flanges 31 and 32 by welding or fixing members 80a and 80b.

When using the fixing members (80a) (80b), it is possible to form a screw thread at the ends of the upper and lower reinforcement (60a) (60b) and screwed with the fixing member (80a) (80b). In this case, the reinforcing bars can be stably fixed to the flanges 31 and 32 by tightening the fixing members 80a and 80b at both ends of the upper and lower reinforcing bars 60a and 60b.

On the other hand, the upper reinforcing bar (62a) provided in the concrete composite beam (230, 240) coupled to the web (33) of the H-beam (30), as in the embodiment shown above, on the top of the web (33) It is installed to extend through the formed second through hole (30b).

In addition, as shown in FIGS. 23 and 24, the lower reinforcing bar 62b provided in any one of the concrete composite beams 240 coupled to the web 33 has an end of the web 33 After passing through the second through hole 30b' formed in the lower portion by a predetermined length, it is fixed by the fixing member 80c.

At the same time, the lower reinforcing bar 62b provided in the other concrete composite beam 230 has an end bent so as not to interfere with the web 33 as shown in FIG. 23. Here, in FIGS. 23 and 24, only H-beams and reinforcing bars are shown for convenience of explanation.

According to another embodiment of the present invention, the lower reinforcing bars 62b of the concrete composite beams 230 and 240 coupled to the web 33 of the H-beam 30 may be configured such that all ends thereof are bent. .

Another embodiment of coupling the four concrete composite beams 210, 220, 230, and 240 to the concrete composite column shown in FIG. 20 is shown in FIGS. 25 and 26. Here, the same reference numerals as in the previous drawings indicate the same members.

In this embodiment, the upper reinforcing bar (60a) provided in the concrete composite beams 210 and 220 coupled to the flanges 31 and 32 of the H-beam 30 of the concrete composite column is the flange of the H-beam 30 ( 31) It is installed to extend through the first through hole 30a formed on the upper part of (32).

On the other hand, the lower reinforcing bar 60b provided in the concrete composite beam 210 and 220 coupled to the flanges 31 and 32 has an end of the flange 31 and 32 of the H-beam 30 After passing through the first through hole (30a') formed in the predetermined length, it is fixed by the fixing member (80b).

That is, in this embodiment, the upper reinforcing bar 60a of the concrete composite beams 210 and 220 extends through the first through-hole 30a, while the lower reinforcing bar 60b is the first through-hole 30a'. It is fixed by the fixing member (80b) past.

In this embodiment, the configuration of the upper reinforcing bar 62a and the lower reinforcing bar 62b of the concrete composite beam 230 and 240 coupled to the web 33 of the H-beam 30 is the same as in the above-described embodiment. Description is omitted.

In addition, the process of constructing a slab by installing a formwork on the concrete composite beam combined as described above and pouring concrete is also the same as in the above-described embodiment.

Further, although this embodiment has specifically described an example of connecting four beams to a concrete composite column, it should be understood that this configuration is equally applied even when three or two beams are connected.

Claims (4)

Upper and lower concrete pillars extending in the longitudinal direction with the exposed portion therebetween; And an H-beam exposed while being coupled between the lower end of the upper concrete pillar and the upper end of the lower concrete pillar at the exposed portion, wherein a plurality of through holes are formed in the H-beam in the exposed portion to allow the slab reinforcement to pass through. Concrete composite columns characterized by. The method of claim 1,
The through hole is composed of a first through hole formed in a flange provided parallel to the H-beam, and a second through hole formed in a web connecting the flange, and the first through hole and the second through hole have different heights. Concrete composite column, characterized in that formed in. The method of claim 2,
The first H-beam (30") at the lower end of the first concrete composite pillar (100') at the top, and the second H-beam (30") at the upper end of the second concrete composite pillar (100") at the bottom Concrete composite column, characterized in that configured by welding the ends of each other in parallel or connecting with a separate plate or bracket. The method according to any one of claims 1 to 3,
Concrete composite column, characterized in that a plurality of brackets to which the beams are coupled are formed on the side of the H-beam exposed through the exposed portion.