KR101678075B1 - Joint Structure of the Steel Beam with Reinforcing Means - Google Patents

Joint Structure of the Steel Beam with Reinforcing Means Download PDF

Info

Publication number
KR101678075B1
KR101678075B1 KR1020150050627A KR20150050627A KR101678075B1 KR 101678075 B1 KR101678075 B1 KR 101678075B1 KR 1020150050627 A KR1020150050627 A KR 1020150050627A KR 20150050627 A KR20150050627 A KR 20150050627A KR 101678075 B1 KR101678075 B1 KR 101678075B1
Authority
KR
South Korea
Prior art keywords
reinforcing
steel
frame
steel frame
joint structure
Prior art date
Application number
KR1020150050627A
Other languages
Korean (ko)
Other versions
KR20160121112A (en
Inventor
정종림
Original Assignee
힐 중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 힐 중공업 주식회사 filed Critical 힐 중공업 주식회사
Priority to KR1020150050627A priority Critical patent/KR101678075B1/en
Publication of KR20160121112A publication Critical patent/KR20160121112A/en
Application granted granted Critical
Publication of KR101678075B1 publication Critical patent/KR101678075B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor

Abstract

The present invention relates to a reinforced joint structure of a steel beam, wherein the steel beam is composed of an end steel frame joined to the column and a central steel frame joined to the end steel frame, wherein the reinforcing steel frame includes the steel frame, On the bottom flange

Figure 112015035043296-pat00047
Type reinforcement member is attached to the reinforcement member so as to form a hollow rectangular space inside the reinforcing range of the mandrel, and at least a connecting member is padded so as to be in contact with the upper surface of the lower flange, Flange and
Figure 112015035043296-pat00048
Type reinforcing member and the connecting member are integrally fastened by the long bolt.

Figure R1020150050627

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multi-

The present invention relates to a reinforced joint structure of a steel beam, and more particularly, to a reinforced joint structure for a steel beam, in which a steel frame for a bracket is previously installed on a column for joining the column to a beam, The present invention relates to a reinforcement and a joint structure of a steel beam designed to have an optimum cross section corresponding to the magnitude of stress acting on the steel beam.

Generally, in a structure in which a steel column and a steel beam are jointed to each other, a steel beam is connected to a bracket for beam joining in a factory. In the field, steel brackets are fastened to the bracket with a high strength bolt, , The construction period is shortened, and the construction cost is reduced.

On the other hand, in the structure in which the steel beam is rigidly coupled to the steel column, a moment is generated at both ends of the steel beam, and a moment is generated at the center of the steel beam, but the moment generated at the end is larger than the center moment , The section of the steel beam is designed based on the maximum moment, which is generally the maximum moment.

As a result, the central portion of the steel frame is inevitably over-designed, which causes an increase in the amount of expensive steel to be used, resulting in uneconomical problems.

In order to solve such a problem, a cross section of an end portion and a center portion are made different from each other. As shown in Fig. 1 (a), a steel member of an end portion and a steel member of a central steel member are different from each other. And a reinforcement member having an inverted T shape is formed on the lower flange of the steel frame located at the center of the steel frame, so that the steel frame of the steel frame is danced more than the steel frame of the central steel frame.

However, in the related art as described above, the joints between the steel brackets at the ends and the steel brackets at the center are reinforced, and the length of the joints and the length of reinforcement (the range of reinforcement) There is a problem that it can act.

In addition, the above-mentioned prior art technique increases the bending stiffness by only increasing the dancing of the steel beam relative to the end portion, that is, simply moving the lower flange to the lower portion to increase the secondary moment of the end portion, , Which is a factor that lowers the space utilization rate.

In addition, the above-mentioned prior art has a problem that the steel shaft is not considered for the weak axis and weak against the horizontal load such as earthquake.

KR 10-0759041 B1

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of reinforcing an end portion of a steel beam so that a central portion of the steel beam is not excessively designed, The present invention provides a reinforcement joint structure of a multi-reinforcing steel frame, which is reinforced with respect to an end portion of a steel beam and has a shear reinforcement with respect to a weak portion.

The present invention also provides a reinforcement joint structure for a multi-reinforced steel frame which can improve the seismic rigidity by simultaneously reinforcing the weak axis by improving the space utilization rate by minimizing the increase in the dancing of the steel beam ends. .

According to a preferred embodiment of the present invention for solving the above problems, a steel beam is composed of an end steel frame joined to a column and a central steel frame joined to the end steel frame, To the lower flange of the steel frame

Figure 112015035043296-pat00001
Type reinforcement member is attached to the reinforcement member so as to form a hollow rectangular space inside the reinforcing range of the mandrel, and at least a connecting member is padded so as to be in contact with the upper surface of the lower flange, Flange and
Figure 112015035043296-pat00002
Type reinforcing member and the connecting member are integrally fastened by the long bolt.

At this time,

Figure 112015035043296-pat00003
Type reinforcing members may be divided into two and welded to the lower flanges of the end frames and the lower faces of the lower flanges in the reinforcing range portion of the center frame, respectively, And one end may be attached to the lower flange bottom surface of the end frame so as to protrude from the end frame steel.

Further, the connecting member is formed on the upper surface of the lower flange of the steel beam

Figure 112015035043296-pat00004
Shaped reinforcement member, and the lower flange and the lower flange of the steel beam
Figure 112015035043296-pat00005
Type reinforcing member, and a pair of right channel shapes that surround the side surface of the reinforcing member.

According to another embodiment of the present invention, the lower flange of the steel beam

Figure 112015035043296-pat00006
Reinforced steel member is filled with concrete in a rectangular space formed by attaching a reinforcing member to the reinforcement member.

At this time, reinforcing bars may be embedded in the concrete, and a reinforcing bar for reinforcing reinforcing bars may be further provided in the rectangular space.

The present invention relates to a manufacturing method of a steel plate for a bracket to be joined to an end of a steel column, and then joining the steel plate to the steel plate by simply connecting the steel plate to the end steel plate, The completion of the jointing of the steel frame is completed by completing the jointing operation to the steel frame, thereby improving the quality and the workability.

Further, according to the present invention, an optimum cross-section is provided so as to cope with a change in the magnitude of stress, thereby reducing the amount of steel used, thereby minimizing the degree of change in cross section that is unavoidably generated. .

Further, the present invention improves not only the bending stress but also the shear rigidity with respect to the joint and the stiffness against seismic resistance by reinforcing the weak axis.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a method of reinforcing a steel beam end according to the prior art;
2 is a perspective view illustrating a state in which a steel beam according to an embodiment of the present invention is joined to a column.
3 is an enlarged perspective view of a reinforced joint structure located at an end of a steel beam according to the present invention.
4 is an exploded perspective view of the reinforced joint structure.
5 is a longitudinal sectional view and a cross-sectional view of the reinforced joint structure.
6 is a perspective view of a reinforced joint structure to which a connecting member according to another embodiment of the present invention is applied.
7 is an exploded perspective view of the reinforced joint structure shown in Fig.
8 is a longitudinal sectional view and a cross-sectional view of the reinforced joint structure shown in Fig.
9 is a cross-

Figure 112015035043296-pat00007
Type reinforcing member according to another embodiment of the present invention.
10 is a cross-sectional view showing a reinforced joint structure of another embodiment of the present invention in which a rectangular space is filled with concrete.
11 is a cross-sectional view of an embodiment in which reinforcing bars are embedded in the concrete.
12 is a perspective view showing an example in which a reinforcing bar rest is provided for the reinforcing bars.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in order to obscure or obscure the technical idea of the present invention due to the detailed description of the known structure in describing the present invention, the description of the structure of the above known structure will be omitted.

FIG. 2 is a perspective view illustrating a state in which a steel bar 100 according to an embodiment of the present invention is joined to a column 200, FIG. 3 is an enlarged perspective view of a reinforcing and connecting structure located at an end of the steel bar 100, FIG. 4 is an exploded perspective view of the reinforced joint structure, and FIG. 5 is a longitudinal sectional view and a cross sectional view of the reinforced joint structure. 4, the upper flange 100a and the web 100c are jointed using a connecting plate and a bolt in connection with the joining portion of the steel bar 100, The illustration of the joining means of the upper flange 100a and the web 100c is omitted so that the above description can be clearly explained.

 2, a steel beam 100 having a reinforced joint structure according to the present invention is rigidly bonded to a column 200, and a steel beam 100 having a reinforcing joint structure according to an embodiment of the present invention is formed on the center of a span, And the bending moment is generated larger than the center of the span, so that the end portion of the span where the strength is insufficient is corrected through the reinforcing member or the like so that the central portion of the span is not excessively designed. The steel frame 100 is a structure in which the end frame 110 and the central frame 120 are jointed to each other in situ. For example, the end frame 110 is attached to a steel frame for a column in the factory, 120 are joined to the end steel frame 110 to complete the joining of the steel beam 100 to the column 200.

The steel beam 100 having the bonding structure of the present invention is an H-shaped steel comprising an upper flange 100a and a lower flange 100b and a web 100c connecting them, And a central steel frame 120 joined between the end steel frame 110 and the end steel frame 110.

At this time, the dividing points of the end frames 110 and the central frames 120, that is, the points where they must be joined at the site, are located within the reinforcing range R of the momentum generated at the ends of the steel frame 100.

Therefore, in the present invention, the problem of the prior art in which the reinforcing range is limited by the joint position or the joint position is limited by the reinforcing range does not occur.

In addition, the end frame 110 and the center frame 120 have the same cross-section, and the size of the cross-section is set based on the proof strength required at the span center.

On the lower surface of the lower flange 100b of the steel beam 100 with respect to the above-described net moment reinforcing range R including the end frame 110,

Figure 112015035043296-pat00008
Type reinforcing member 130 is attached by welding.

At this time, in the embodiment shown in Figs. 3 to 5

Figure 112015035043296-pat00009
Type reinforcing member 130 is divided into two pieces and is welded to the lower surface of each lower flange 100b in the reinforcing range portion of the end frame 110 and the central steel frame 120 so that the inside is filled with the empty square space S Has a shape attached to the bottom surface of the lower flange 100b at the end of the steel bracket 100. [

The shape in which the square pipe is attached to the lower face of the lower flange 100b of the steel frame 100 not only increases the moment of inertia of the frame but also reinforces the weak axis of the steel frame 100 and acts in a direction perpendicular to the steel frame 100 So that the stiffness capable of coping with unintentional loads can be increased.

As described above

Figure 112015035043296-pat00010
The end steel frame 110 and the central steel frame 120 to which the reinforcing members 130 are respectively attached are prefabricated at the factory and transported to the site,
Figure 112015035043296-pat00011
The end portion steel frame 110 to which the reinforcing member 130 is attached is fabricated in a factory installed in a steel frame for a column.

At this time

Figure 112015035043296-pat00012
Type reinforcing member 130 is attached to the lower flange 100b and the corresponding
Figure 112015035043296-pat00013
Type reinforcing member 130 may be provided with a bolt hole in advance.

It is of course also possible to provide a bolt hole for coupling with the connecting plate to the upper flange 100a and the web 100c for joining the end frame 110 and the central steel frame 120 in advance.

Figure 112015035043296-pat00014
The end steel frame 110 and the central steel frame 120 to which the reinforcing member 130 is attached are brought into contact with each other in the field,
Figure 112015035043296-pat00015
Type reinforcing member 130 is padded and fastened by a bolt.

To this end, the connecting member 140 is provided with a lower flange 100b of the steel beam 100,

Figure 112015035043296-pat00016
Type reinforcing member 130 is provided with a bolt hole communicating with the bolt hole.

Therefore, the lower flanges 100b of the end frame 110 and the central frame 120,

Figure 112015035043296-pat00017
Type reinforcing member 130 and the connecting member 140 can be structurally integrated as a whole by one long bolt B. [

The connecting member 140 may be formed in the shape of a plate, as shown in FIGS. In this case, one of the plate-shaped connecting members 140 is connected to the upper surface of the lower flange 100b of the steel bar 100,

Figure 112015035043296-pat00018
Type reinforcing member 130 so as to function as a steel structure beam 100 that is structurally integrated with the end steel frame 110 and the central steel frame 120 while being positioned to be in contact with the lower surface of the steel reinforcing member 130, Thereby increasing the moment and further increasing the bending stiffness.

6 to 8 are perspective views showing parts of the connecting member 140, FIG. 6 is an exploded perspective view, FIG. 7 is an exploded perspective view, and FIG. 8 is a cross-sectional view and a longitudinal sectional view .

6 to 8, the connecting member 140 of the present embodiment has an upper surface and a lower surface of the lower flange 100b of the steel beam 100,

Figure 112015035043296-pat00019
Type reinforcing member 130 while simultaneously contacting the lower surface of the reinforcing member 130 and the side surface of the reinforcing member 130.

like this

Figure 112015035043296-pat00020
Shaped connecting member 140 positioned on the side surface of the reinforcing member 130 improves workability in the field.

For example, when the connecting member 140 is used in the plate shape of the foregoing embodiment, two screws

Figure 112015035043296-pat00021
Shaped connecting member 140 positioned on the lower surface of the reinforcing member 130 may be held by hand or otherwise fixed so as to prevent the connecting member 140 from moving in a predetermined position, doggy
Figure 112015035043296-pat00022
Type reinforcing member 130, it is not necessary to take any additional measures to prevent the movement of the position-compensating member 130, thereby improving workability.

In addition, the connecting member 140 in the form of a channel provides an effect of further increasing the rigidity of the steel beam 100 with respect to the weak axis and improving the seismic performance of the structure.

9 is an exploded perspective view for explaining another embodiment of the present invention.

In the previous embodiment

Figure 112015035043296-pat00023
Type reinforcing member 130 is divided so as to correspond to the end steel frame 110 and the central steel frame 120, respectively. However, as shown in FIG. 9,
Figure 112015035043296-pat00024
Type reinforcing member 130 may be formed as a single unit.

One such unpartitioned

Figure 112015035043296-pat00025
When the reinforcing member 130 is used, it is possible to omit the plate-like connecting member 140 which is to be attached to the lower surface of the steel beam 100 during the jointing operation, thereby reducing the use of the member and facilitating the construction thereof do.

At this time,

Figure 112015035043296-pat00026
The reinforcing member 130 is preferably attached to the lower flange 100b of the end frame 110 installed on the pillar 200 at the factory so that one end of the frame is attached to the end frame 110 so as to protrude from the end frame 110.

This configuration can be achieved by

Figure 112015035043296-pat00027
Type reinforcing member 130 can be placed on the protruding portion of the reinforcing member 130 so that the joining operation of the steel beam 100 can be performed more safely and easily.

10 is a cross-sectional view showing a reinforced joint structure of a steel beam 100 according to another embodiment of the present invention.

In the embodiment of the present invention shown in FIG. 10, a square space S communicating with the reinforcing range of the momentum generated at both ends of the steel frame 100 is formed in the preceding embodiments, 100 in the reinforcing range is further improved.

The improvement of the reinforcing strength is achieved by filling concrete 141 in the rectangular space S and structuring the reinforcing structure as a CFT (Concrete Filled Steel Tube) system.

The CFT system is a structure that maximizes the characteristics of a steel pipe that is resistant to bending and a concrete that is strong to compression. The concrete is filled in the steel pipe to constrain the concrete filled in the steel pipe to improve the seismic resistance, bending stiffness and fire resistance .

That is, the lower flange 100b of the steel beam 100

Figure 112015035043296-pat00028
Type reinforcing member 130 restrains the concrete 141 filled in the inside like a steel pipe of the CFT system, so that the effect of the CFT system can be produced as it is.

Therefore, the functional effect of the above-

Figure 112015035043296-pat00029
Type reinforcement member 130 can be designed to be smaller in size, thereby minimizing the space utilization factor reduction inevitably caused by reinforcement of the end portions of the steel beam 100. Further, by improving the refractory performance, It is also possible to reduce the cost of the system.

Further, the lower flange 100b of the steel beam 100

Figure 112015035043296-pat00030
The concrete 141 filled in the internal rectangular space S by the reinforcing member 130 may be further provided with reinforcing bars 142 in the longitudinal direction as shown in FIG.

The reinforcing bar 142 improves not only the flexural rigidity but also the shear rigidity

Figure 112015035043296-pat00031
Type reinforcement member 130 can be made smaller, and in particular, the sectional size of the divided reinforcing member 130 can be reduced,
Figure 112015035043296-pat00032
Type reinforcing member 130 are used, the thickness of the connecting member 140 can be reduced by integrating them.

The reinforcing bar 142 is easily positioned at the correct position before the concrete 141 is inserted into the rectangular space S formed by the completion of the connection between the end steel frame 110 and the central steel frame 120 Should be able to.

Of course, as in the embodiment shown in FIG. 9,

Figure 112015035043296-pat00033
Type reinforcing member 130 is used,
Figure 112015035043296-pat00034
Type reinforcing member 130 is attached to the bottom flange 100b of the end frame 110 so as to protrude from the bottom flange 100b so as to be reinforced before the end frame 110 and the center frame 120 are joined The reinforcing bars 142 may be laid, but two divided pieces
Figure 112015035043296-pat00035
Type reinforcing member 130 is used as an example.

12, a reinforcing bar rest 143 may be further provided in the rectangular space S, and the reinforcing bar rest 143 may be installed on only one side of the rectangular space S, It is preferable that the reinforced reinforcing bars 142 are arranged in a square space S located in the end steel frame 110 and a rectangular space S located in the central steel frame 120 so as to be stably positioned.

As shown in FIG. 12,

Figure 112015035043296-pat00036
Type reinforcement member 130 or may be fixedly installed on the bottom surface of the lower flange 100b of the steel beam 100 not shown here.

In other words, the reinforcing bar rest 143 is provided on the end steel frame 110 and the angle < RTI ID = 0.0 >

Figure 112015035043296-pat00037
Type reinforcement member 130 or may be fixed to each of the lower flanges 100b of the end frame 110 and the central steel frame 120. [

The reinforcing bar 143 serves as a shear connection member for synthesizing the steel material of each member forming the rectangular space S and the concrete 141 inside the steel reinforcing bar 142, So that the stud bolt and the like can be omitted.

It is preferable that the reinforcing bar 142 is provided with a reinforcing bar fixing groove 143a so that horizontal movement of the reinforcing bar 142 is suppressed and the placing operation can be facilitated.

Reference numeral 210 denotes a horizontal reinforcement for reinforcement of the steel frame for the column to the steel frame 100 joining portion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious that it will be possible to carry out various modifications thereof. It is therefore intended that such modifications are within the scope of the invention as set forth in the claims.

100; Steel frame 110; End steel frame
120; A central steel frame 130;

Figure 112015035043296-pat00038
Type reinforcing member
140; A connecting member 141; concrete
142; Rebar 143; A reinforcing bar
200; Pillar

Claims (10)

In the structure in which the column and the steel beam 100 are joined to each other by joining the central steel frame 120 in a state where the bracket end steel frame 110 is previously installed on the column,
The lower flange 100b of the steel beam 100 is fixed to the root moment reinforcing range R of the steel beam 100 including the end steel frame 110
Figure 112016072384511-pat00061
Type reinforcing member 130 is attached so that a vacant rectangular space S is formed in the reinforcing range R of the parent mandrel. The rectangular space S is filled with concrete 141, The lower flanges 100b and the lower flanges 100b of the end frame 110 and the center frame 120 are connected with the connecting member 140 so as to be in contact with the upper surface of the lower flange 100b,
Figure 112016072384511-pat00062
Type reinforcing member 130 and the connecting member 140 are integrally fastened by the long bolt B,
remind
Figure 112016072384511-pat00063
Type reinforcing member 130 is divided into two parts and is welded to the lower flange 100b of the end frame 110 and the lower face of the lower flange 100b in the reinforcing range portion of the center frame 120, The connecting member 140 is connected to the upper surface of the lower flange 100b of the steel bar 100,
Figure 112016072384511-pat00064
Type reinforcing member (130). The reinforcing joint structure of the multi-reinforcing steel frame is characterized in that the reinforcing member (130) has a pair of plate shapes attached to the lower surface of the reinforcing member (130). delete delete delete delete delete 3. The reinforced joint structure of a multi-reinforced steel frame according to claim 1, wherein a reinforcing steel (142) is embedded in the concrete (141) filled in the rectangular space (S). The apparatus according to claim 7, wherein a reinforcing bar rest (143) for reinforcing the reinforcing bar (142) is provided in each of the rectangular space (S) located in the end frame (110) and the rectangular space (S) Wherein the reinforcing joint structure of the multi-reinforcing steel frame is characterized in that the reinforcement joint structure of the multi- delete delete
KR1020150050627A 2015-04-10 2015-04-10 Joint Structure of the Steel Beam with Reinforcing Means KR101678075B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150050627A KR101678075B1 (en) 2015-04-10 2015-04-10 Joint Structure of the Steel Beam with Reinforcing Means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150050627A KR101678075B1 (en) 2015-04-10 2015-04-10 Joint Structure of the Steel Beam with Reinforcing Means

Publications (2)

Publication Number Publication Date
KR20160121112A KR20160121112A (en) 2016-10-19
KR101678075B1 true KR101678075B1 (en) 2016-11-21

Family

ID=57250965

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150050627A KR101678075B1 (en) 2015-04-10 2015-04-10 Joint Structure of the Steel Beam with Reinforcing Means

Country Status (1)

Country Link
KR (1) KR101678075B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100613597B1 (en) * 2005-11-25 2006-08-17 주식회사 일승 A girder of rahmen structure for constructing building and method of making it
KR101206441B1 (en) * 2012-08-10 2012-11-29 송성호 Steel frame structure and this construction technique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100759041B1 (en) 2007-05-22 2007-09-17 주식회사 세진에스씨엠 Link structure for steel beam and column of building and methods using the same
KR20090063393A (en) * 2007-12-14 2009-06-18 현대제철 주식회사 Prestressed beam
KR101497212B1 (en) * 2013-06-03 2015-02-27 서울시립대학교 산학협력단 Fiber Reinforced Steel Beam with End Slip Prevention Clamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100613597B1 (en) * 2005-11-25 2006-08-17 주식회사 일승 A girder of rahmen structure for constructing building and method of making it
KR101206441B1 (en) * 2012-08-10 2012-11-29 송성호 Steel frame structure and this construction technique

Also Published As

Publication number Publication date
KR20160121112A (en) 2016-10-19

Similar Documents

Publication Publication Date Title
KR101848699B1 (en) Weldless connecting core for column-beam joint and connection method using the same
KR101544803B1 (en) Joint System of Steel Concrete Composite Beams and Columns and Construction Method thereof
KR101565463B1 (en) Steel assembly of column for filling concrete
KR101669441B1 (en) Hinge joint of steel pipe truss structure, steel pipe truss structure therewith and the steel pipe truss structure construction method therefor
KR20130012898A (en) Joint of steel column
KR101734107B1 (en) Cft column structure with the diaphragm and the manufacturing method thereof
KR101683196B1 (en) End Continuing Structure for Truss Decks
KR101011252B1 (en) Rigid-frame bridge frame for reinforcing negative moment part and rigid-frame bridge having it
KR101577019B1 (en) Diaphram and reinforcement structure of the concrete filled steel tublar comumn, and the manufacturing method of it
KR20170083694A (en) Roll forming steel plates built-up beam and steel frame using the same
KR101429527B1 (en) Joint structure of Composite Girder
KR101566992B1 (en) Assembly typed cft column structure
JP2000170285A (en) Connecting method for steel sheet concrete structural wall and junction structure
JP5611740B2 (en) Reinforcing method of existing building and stiffener used for the method
KR20170066192A (en) Concrete composite column and joint structure of composite column an beam and manufacturing method of concrete composite column
KR101805434B1 (en) Sturcture of composite beam using wire tensioning and Construction method thereof
KR101678075B1 (en) Joint Structure of the Steel Beam with Reinforcing Means
JP5268470B2 (en) How to lift a rebar basket
JPH05311747A (en) Pole-beam structure
KR100710583B1 (en) Hybrid system of pc column and steel beam
JP2020111930A (en) Wooden beam joint structure
KR101627820B1 (en) Steel horizontal assembly for forming a hollow slab
KR101736594B1 (en) Connecting sturcture between column and beam
KR20160068107A (en) Steel beam and prestressed composite girder using the same thing and construction method there of
KR101590065B1 (en) Prefabricated composite truss girder and method for constructing thereof

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20191104

Year of fee payment: 4