KR20130090450A - Joint structure of circular column and beam - Google Patents

Abstract

PURPOSE: A joint structure of circular columns and beams using stud bolts is provided to reduce a construction period and cost as concrete placing work is not necessary. CONSTITUTION: A joint structure of circular columns and beams using stud bolts (210) comprises first and second bodies (100A, 100B), and a connection member. The first and second bodies are placed facing each other around the circular column, and comprise a coupling unit (130), a circular arc unit (110), and bilateral flanges (122, 124). One end of the stud bolt is connected to coupling holes (132) of the first and second bodies. The other end protrudes from the coupling unit, and is connected to the end of a beam. The connection member is connected to the bilateral flanges, and connects the first body to the second body.

Description

Joint Structure of Circular Column and Beam Using Stud Bolts {JOINT STRUCTURE OF CIRCULAR COLUMN AND BEAM}

The present invention relates to a connection structure of a circular column and a beam using a stud bolt, and in particular, by improving the assembly structure of the stud bolt connecting the circular column and the beam to a prefabricated connection structure, as well as saving air and cost, The present invention relates to a connection structure between a circular column and a beam using a stud bolt whose structure is improved to improve workability.

In general, when building buildings such as urban buildings and high-rise complexes, many top / down or downward methods are applied.

Here, the top / down method is a method for constructing the ground layer and the basement layer at the same time. In the case of the ground layer, the construction proceeds as it is while building the skeleton, and at the same time, in the case of the basement layer, the construction is carried out by digging one after another. to be.

On the other hand, the Downward method is a method that reverses only the basement part, unlike the top / down method.

In the conventional building structure, a single structure using the same materials as columns and beams is generally used, such as reinforced concrete structures, steel structures, or steel reinforced concrete structures, and these single structures form respective specialized fields. Systematized.

Double-reinforced concrete structure, which is strong in compressive force but very weak in tensile force, is a structure that reinforces the strong reinforcing steel to complement each other, and is used most structurally or economically. Such reinforced concrete structure has many advantages. Nevertheless, the cross-section and weight of the member is large, and the concrete construction period is required to pour and cure concrete in accordance with the construction progress, a lot of construction work, there is a disadvantage that requires a thorough management of uniform construction difficult.

In addition, the steel frame structure is made of steel materials with higher strength and ductility than reinforced concrete, and thus can absorb a lot of deformation energy due to earthquake, wind, impact, etc., which is advantageous for high-rise or high-rise buildings or long span buildings. On the other hand, the member is easily buckled with respect to the compressive force, the strength degradation or deformation is likely to occur due to the high temperature during the welding connection, and there is a disadvantage that it is easy to rust due to moisture.

However, in recent years, buildings have been enlarged and enlarged in size, and complexed and diversified in terms of function. As such, the single structure described above is inadequate for building requirements due to the characteristics of the material, and it is difficult to construct construction and economically. Disadvantageous cases also occurred.

For this reason, researches are being actively conducted on new composite structures which take advantage of each structural system and combine them with each other in order to improve structural performance and shorten air and save labor costs.

In such a composite structure, the pillar member is used as an economical and efficient reinforcement concrete because it has a large compressive force, and the steel frame is advantageous in the height and weight of the building because the dancing of the member is less than that of the reinforced concrete member in the long span structure. do.

In the composite structure using reinforced concrete columns and steel beams, the design of the composite structure where the reinforced concrete columns and steel beams meet is very important. Reinforced concrete and steel frame are materials with different material properties, and the part where the two members are joined is an important part for transmitting stress acting on the structure and is an important part that affects the safety of the entire structural system.

Therefore, many studies have been proposed for the composite structure of reinforced concrete columns and steel beams.

The connection structure between the column and the beam generally adopts a connection method using stud bolts. In this case, when the column is a square column, one end of the stud bolt is welded to the outer surface of the column, and the other end is connected to the end plate of the beam. Tightening method can be applied.

However, in the case of a circular column, not only is it difficult to weld the stud bolt, but also the stud bolt and the circular column are not manufactured in the field, but the concrete is cast and manufactured to integrate the column and the stud bolt in the factory and then transferred to the site. There was a hassle to let.

In addition, since the manufacturing process to be integrated into the concrete pouring after forming a larger perforation than the stud bolts on the outer periphery (position where the stud bolts will be installed) of the column in the factory manufacturing, the production period is delayed and thus There is a problem that the cost is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and its object is as follows.

First, it is possible to easily connect the stud bolt to the outer periphery of the circular column in a constrained assembly structure, not welding, to provide a connection structure of the circular column and beam using the stud bolts with improved bondability.

Second, it is to provide a connection structure of a circular column and beam using a stud bolt to shorten the air and to reduce the cost by being coupled to the prefabricated structure in the site, not the factory.

Third, the present invention provides a connection structure between a circular column and a beam using a stud bolt whose structure is improved so that the position of the stud bolt can be adjusted according to the arrangement position of the beam.

The present invention for achieving the above object is arranged to be divided so as to face each other around the circular column, a plurality of fastening holes are formed to penetrate and the end of the beam is in close contact with the outer circumference of the circular column First and second bodies having circular arc portions to be joined and bilateral flanges respectively formed at opposite ends of the circular arc portion;

A plurality of stud bolts having one end fastened to the fastening holes of the first and second bodies and the other end protruding to the outside of the circular arc, and fastened to the end plate of the beam;

And a binding member coupled to both flanges to bind the first and second bodies.

One of the flanges on both sides is connected via a hinge axis to be rotatable.

It is further provided with a support that is welded to the outer periphery of the circular pillar to support the lower part of the first and second bodies.

The first and second bodies further include a support plate formed to protrude outwardly,

The support plate is a pair of support surfaces that extend in the same line from each of the opposite edge end of the fastening portion to support both sides of the end of the beam,

It is provided with a guide surface extending from each end of the support surfaces to extend from each other to guide the entry of the beam.

The fastening part is formed in both sides of the length different.

The effects of the present invention are as follows.

First, by allowing the stud bolt to be easily coupled to the outer periphery of the circular column by a constrained assembly structure, not by welding, the assembly is improved and has a useful effect of increasing work efficiency.

Second, since it is possible to omit the concrete pouring work to integrate the stud bolts compared to the existing factory production method, there is an advantage that can reduce the construction period and cost.

Third, since the arrangement position of the stud bolt can be adjusted at any angle in the field, there is an advantage that the field workability is improved.

1 is a perspective view showing a first embodiment of a connection structure of a circular column and a beam using a stud bolt according to the present invention.
Figure 2a and Figure 2b is a cross-sectional view of the state coupled to the different angles at the time of coupling the first and second body and the circular column of the present invention.
Figure 3 is a perspective view showing a state before the coupling of the circular column and the beam using the present invention connecting structure.
4a and 4b is a front view and a plan view showing a state after the coupling of the present invention circular column and beam.
5 is a perspective view showing a modification of the first embodiment of the present invention.
Figure 6 is a perspective view showing a second embodiment of the connection structure of the circular column and beam using a stud bolt according to the present invention.
7 is a combined state of FIG.
Figure 8 is a perspective view showing a third embodiment of the connection structure of the circular column and beam using a stud bolt according to the present invention.
Figure 9 is a perspective view showing a fourth embodiment of the connection structure of the circular column and beam using a stud bolt according to the present invention.
10 is a combined state of the fourth embodiment of the present invention.

The present invention is to improve the stud bolt connection structure connecting the circular column and the beam to a prefabricated connection structure, not only to reduce the air and cost, but also to improve the field construction.

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

First Embodiment

When the connection structure of the circular column and the beam using the stud bolt according to the present invention will be described with reference to Figures 1 to 4, the configuration is a circular column 10 applied to a building such as a bridge or building, a plurality of fastening The ball 132 is formed to penetrate and has an arc portion 110 which is coupled in close contact with the outer periphery of the circular column 10 and both side flanges (122,124) formed at both ends of the arc portion 110, respectively The first and second bodies 100A and 100B and one end thereof are fastened to the fastening holes 132 of the first and second bodies 100A and 100B, and the other ends thereof are disposed to protrude outward of the arc part 110. A plurality of stud bolts 210 coupled to the end plate 25 of the beam 20 and the binding member 300 coupled to both flanges 122 and 124 to bind the first and second bodies 100A and 100B. It is roughly divided into.

In more detail, the first and second bodies 100A and 100B have a structure in which the first and second bodies 100A and 100B are divided into a plurality of parts so as to face each other with respect to the circular column 10.

Here, the first and second bodies 100A and 100B are not limited to two, but may be composed of three or four or more. However, the first and second bodies 100A and 100B may be configured in two in consideration of simplification and assembly. desirable.

Circular arc portion 110 is formed with a block-shaped fastening portion 130 is formed with a plurality of fastening holes 132 on the outside, the fastening portion 130 may be arranged in one or a plurality (see Fig. 5). ).

When a plurality of fastening portions 130 are disposed, the coupling angle between the stud bolts 210 and the end plates 25 of the beams 20 may be adjusted.

The fastening hole 132 is formed in a shape having a screw thread inside the fastening portion 130.

The binding member 300 is a fixing bolt 310 coupled to penetrate through the one side and the other flanges 124 of the first and second bodies 100A and 100B, and a fixing nut 320 fastened to the fixing bolt 310. ) To bind the first and second bodies 100A and 100B with the fastening force of the fixing bolt 310 and the fixing nut 320.

In addition, although another example of the binding member 300 is not shown in the drawing, the first and second bodies 100A and 100B may be bound by restricting both flanges 122 and 124 using a known clamp.

And, further provided with a support 400 welded to the outer periphery of the circular column 10, the upper portion of the support 400 is supported by supporting the lower portion of the first and second bodies 100A, 100B, the first 2, the lower movement of the body (100A) (100B) can be prevented.

Meanwhile, instead of the supporter 400, the arc portions 110 of the first and second bodies 100A and 100B may be directly welded to the outer circumference of the circular column 10. In this case, the supporter 400 may be welded. Can be omitted.

For reference, the beam 20 is composed of an H-type or I-type beam, the end plate 25 in the form of a flat plate is welded integrally to the end of the beam 20. The end plate 25 is formed with a plurality of connecting holes 25a to fasten the other end of the stud bolt.

Referring to the operation of the first embodiment of the present invention having such a configuration is as follows.

The connection structure of the circular column and the beam using the stud bolt according to the present invention, the circular arc 10 of the first and second bodies 100A, 100B to close the outer periphery of each of the close contact, After the fixing bolt 310 passes through the flange portions of the first and second bodies 100A and 100B, the fixing nuts 320 are fastened to the ends of the fixing bolts 310 and the first and second bodies 100A. Bind 100B to the circular column 10.

At this time, the first and second bodies 100A and 100B are coupled to the circular column 10 via the binding member 300, as shown in FIGS. 2A and 2B, and the outside of the circular column 10. By rotating around the periphery, the fastening direction of the stud bolt 210 can be adjusted arbitrarily.

The process of protruding the other end of the stud bolts 210 to the outside of the fastening portion 130 by fastening one end of the stud bolt 210 to the fastening hole 132 is based on the convenience of the operator. 100B) may be performed before or after the binding to the circular column 10.

Subsequently, the end plate 25 of the beam 20 is brought into close contact with the other end of the stud bolt 210 to be coupled.

At this time, the other end of the stud bolt 210 is coupled to penetrate through the connection hole 25a of the end plate 25, and then the other end of the stud bolt 210 is fastened by fixing the connection nut 220.

The assembling angle of the stud bolt 210 and the end plate 25 is preferably a horizontal angle when viewed in plan view (see FIGS. 4A and 4B), but in the case of the design of the structure, a plurality of fastening portions 130 are formed. The assembly angles of the stud bolts 210 and the end plates 25 of the beams 20 can be adjusted using the first and second bodies 100A and 100B. (See FIG. 5).

In the following embodiments, the same reference numerals are used for the same elements as those of the first embodiment described above, and redundant descriptions thereof will be omitted.

Second Embodiment

The second embodiment of the present invention will be described with reference to Figures 6 and 7, the configuration is formed so that the circular column 10 and a plurality of fastening holes 132 to be applied to buildings such as bridges or buildings One of the two flanges 122 and 124 and one of the two flanges 122 and 124 formed at both ends of the circular arc part 110 and the circular arc part 110, which are tightly coupled to the outer circumference of the circular column 10, respectively. The first and second bodies 100A and 100B coupled to each other via the hinge shaft 125 so as to be rotatable, and one end thereof is fastened to the fastening hole 132 of the first and second bodies 100A and 100B. And a plurality of stud bolts 210 coupled to the end plate 25 of the beam 20, the other end of which protrudes outwardly of the arc portion 110, and coupled to restrain the other flanges 124. The first and second bodies 100A and 100B are roughly classified into binding members 300.

In detail, the first and second bodies 100A and 100B are disposed to face each other with respect to the circular column 10, and one side flanges 122 are rotatably connected about the hinge axis 125. Have

That is, the first and second bodies 100A and 100B have a structure in which the first and second bodies 100A and 100B are rotatable with each other via the flange 122 and the hinge shaft 125.

The binding member 300 is fastened to an end of the fixing bolt 310 and the fixing bolt 310 coupled through the other flanges 124 to bind the first and second bodies 100A and 100B with a fastening force. It is composed of a fixing nut 320.

Since the fastening portions 130 of the first and second bodies 100A and 100B are the same as those of the above-described embodiment, overlapping descriptions will be omitted.

In the second embodiment of this configuration, since the first and second bodies 100A and 100B are rotatably configured based on one side flange 122, one of the first and second bodies 100A and 100B may be used. After rotating one side to open the other side flanges 124 so that each arc portion 110 surrounds the outer circumference of the circular column 10, the other side flange 124 of the first and second bodies 100A and 100B. ) By binding to the binding member 300 to bind the first and second bodies 100A, 100B to the circular column (10).

Since the assembly process between the stud bolt 210 and the end plate 25 of the beam 20 is the same as the previous embodiment.

Third Embodiment

Referring to Figure 3, the third embodiment of the present invention, the configuration is formed to extend to protrude to both outside of the fastening portion 130 in the components of the first and second embodiments described above the beam 20 It is further provided with a support plate 150 for supporting both side portions of the end plate 25 of the guide 20 to guide the entry of the beam 20.

The support plate 150 is composed of a plate in the form of a flat plate, and a pair of support surfaces 152 extending from the opposite edge end portions of the fastening portion 130 to support the opposite side portions of the beam 20, respectively. It is composed of a guide surface 154 extending to open from each end of the support surface 152 to guide the entry of the beam 20.

The guide surface 154 is formed to widen with each other toward the outside. This is to improve the end entry of the beam 20.

The support plate 150 may improve the bonding force by contacting and supporting both sides of the end plate 25, and performs a function to improve the assembly.

Fourth embodiment

9 and 10, the configuration of the fourth embodiment of the present invention, the fastening portion 130 of the components of the first and second embodiments described above is composed of one, the fastening portion 130 The lengths (l1, l2) of one side and the other side are formed differently (l1 <l2) from both side portions.

The fastening part 130 of this configuration is not the end plate 25 of the stud bolt 210 and the beam 20 fastened to the fastening hole 132 is assembled at a horizontal angle, but both sides of the fastening part 130 Since the lengths are different, they are assembled to have an inclination angle.

That is, as shown in FIG. 10, when the first body 100A adopts the first embodiment described above and the second body 100B corresponds to the fourth embodiment, the circular pillar 10 is used. The assembling angle θ of the centerline of the beams 20 coupled to both sides as a reference is combined to have an obtuse angle rather than horizontal as in FIG. 4B.

The fourth embodiment of the present invention can be used when assembling the circular column 10 and the beam 20 having a limited assembly angle.

Here, the circular column 10 may be applicable regardless of concrete or steel pipe, concrete filled steel tube (CFT), and may also be applied to building foundations or bridges.

Embodiments of the present invention described as described above can be easily coupled to the stud bolt 210 employed in the connection structure of the circular column 10 and the beam 20 to the circular column 10 in a simple configuration, assembly In addition to improving the performance, it has the advantage of reducing the construction period and cost.

Description of the Related Art [0002]
10: pillar 20: beam
25: end plate 25a: connection hole
100A, 100B: 1,2 body 110: arc part
122,124: one side, the other flange
125: hinge shaft 130: fastening portion
132: fastening hole 150: support plate
152: support surface 154: guide surface
210: stud bolt 220: connection nut
300: binding member 310: fixing bolt
320: fixing nut 400: support

Claims (5)

In the connecting structure of the circular column and the beam using a stud bolt connecting the beam to the circular column erected on the ground,
It is arranged to be divided so as to face each other with respect to the circular column 10, a plurality of fastening holes 132 are formed to penetrate the fastening portion 130 and the end of the beam 20 is in close contact with the circular column ( First and second bodies (100A) (100B) having an arc portion (110) coupled to the outer periphery of 10) and both flanges (122,124) formed at both ends of the arc portion (110), respectively;
A plurality of one end is fastened to the fastening hole 132 of the first and second bodies 100A, 100B and the other end is protruded to the outside of the fastening part 130 and fastened to the end of the beam 20. A stud bolt 210;
A connecting structure of a circular column and a beam using a stud bolt, characterized in that the; binding member 300 is coupled to both sides of the flange (122,124) to bind the first and second bodies (100A, 100B). The method according to claim 1,
Connection structure between the circular column and the beam using a stud bolt, characterized in that the one of the flanges (122, 124) of the two flanges (122) are connected via a hinge shaft (125) so as to be rotatable. The method according to claim 1 or 2,
Circular pillars and beams using a stud bolt, characterized in that it further comprises a support (400) welded to the outer periphery of the circular column 10 to support the lower portion of the first and second bodies (100A, 100B). Connection structure. The method according to claim 1 or 2,
The first and second bodies 100A and 100B further include support plates 150 formed to protrude outwardly,
The support plate 150 has a pair of support surfaces 152 extending in the same line from each of the edges of both sides of the fastening portion 130 to support both sides of the end portion of the beam 20,
Connection structure of the circular column and the beam using a stud bolt, characterized in that it has a guide surface 154 extending to open from each end of the support surface (152) to guide the entry of the beam (20). The method according to claim 1 or 2,
Connection structure of a circular column and a beam using a stud bolt, characterized in that the length (L1, L2) of both sides of the fastening portion 130 is formed differently.

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