KR101235718B1 - Structure for coupling vertical and horizontal part of unitized steel coutain wall - Google Patents

Structure for coupling vertical and horizontal part of unitized steel coutain wall Download PDF

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KR101235718B1
KR101235718B1 KR1020100136083A KR20100136083A KR101235718B1 KR 101235718 B1 KR101235718 B1 KR 101235718B1 KR 1020100136083 A KR1020100136083 A KR 1020100136083A KR 20100136083 A KR20100136083 A KR 20100136083A KR 101235718 B1 KR101235718 B1 KR 101235718B1
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South Korea
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horizontal member
curtain wall
vertical member
mounting structure
coupled
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KR1020100136083A
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Korean (ko)
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KR20120074124A (en
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임현창
윤경조
이승은
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재단법인 포항산업과학연구원
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Priority to KR1020100136083A priority Critical patent/KR101235718B1/en
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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)

Abstract

It is a main object to provide a vertical member and a horizontal member mounting structure of a unit type steel curtain wall having a cross-sectional detail of a male and female coupling method suitable for roll forming of the present invention.
In the vertical member mounting structure of the unit type steel curtain wall according to the present invention for achieving the above object, a double glass is coupled to the front by a structural sealant, the back panel is installed on both sides at regular intervals from the back of the double glass In the combined curtain wall vertical member mounting structure, the vertical member is composed of a male vertical member and a female vertical member, the male vertical member is a rectangular body as a whole and a pair of protruding coupling portion at regular intervals on one side The female vertical member has a rectangular body as a whole, and a pair of concave coupling portions are formed at one side thereof so that the protruding coupling portion can be inserted therein, and a waterproof sealant is formed between the protruding coupling portion and the concave coupling portion through a coupling bracket. The gasket is inserted.

Description

STRUCTURE FOR COUPLING VERTICAL AND HORIZONTAL PART OF UNITIZED STEEL COUTAIN WALL}

The present invention relates to a vertical member and a horizontal member mounting structure of a unit type steel curtain wall, and more particularly, the cross-sectional detail suitable for steel curtain wall manufactured by roll forming, unlike the vertical member and horizontal member of a conventional aluminum curtain wall The branch is to provide a mounting structure.

Curtain wall is a non-bearing exterior wall. In the structure of reinforced concrete, steel, steel reinforced concrete, etc., the outer wall of the structure formed of pillars, beams, and slabs is made of metal or inorganic material. It is a non-bearing wall that prevents.

In the structure that supports the vertical load applied to the building and the horizontal load caused by wind or earthquake only by the frame of the pillar and beam which are the main structure of the building, the wall is simply called the curtain wall because it serves as a curtain that partitions the space. In Korean architectural terminology, it is called "non-bearing partition wall." It serves as a pretext for preventing rain or wind from the outside and blocking noise or heat, and the walls of columns and beams are not exposed to the outside and using glass, etc., as a modern architectural style, especially for exterior use.

Curtain wall can be classified into stick type and unit type curtain wall according to the construction method, and the unit type is especially used for high or super high-rise construction. If the building is more than 100m high, it is difficult to assemble the scaffolding outside, so the curtain wall unit manufactured by the factory is transported to the site and installed. Because it is manufactured at the factory, mass production is possible, and the panel is characterized by standardization and unification, and thus the exterior of the building also shows a new industrial configuration.

The curtain wall is basically a vertical member (mulion) that is vertically coupled to the building slab via an anchor, and a horizontal member (transom, transom) that is horizontally coupled with a plurality of vertical members, and these vertical and horizontal members It is composed of a glass member to be inserted between the installation, the various members and the like to be firmly coupled between the glass member and the vertical, horizontal members, and to exhibit the effect of heat insulation, airtightness, watertightness and the like.

The curtain wall mounting structure is a capture type for fastening bolts at the front part of the glass member according to a method of joining the glass member to the horizontal member and a structural sealant type for adhesive fixing using structural sealant at the rear part of the glass member. Structural Sealant Glazing). As the unit type curtain wall to which the present invention belongs, the structural sealant type is mainly used.

Since the weight of the building itself has a great influence on the thickness of the columns and beams of the building, a light material such as aluminum has been mainly used as a frame to reduce the overall weight of the curtain wall. However, the aluminum frame is structurally fragile in modern high-rise construction in which buildings are high rise, long spand, and the window area is enlarged, and thus, the manufacture of curtain walls using steel frames has been actively studied.

However, in the case of using a steel frame, unlike the existing aluminum material, due to the limitations in the manufacturing process by roll forming, the cross-sectional details of the vertical and horizontal members could not be complicated. Therefore, in order to activate the steel curtain wall, it is required to develop cross-section details suitable for roll forming while maintaining the same or higher level than the existing aluminum cross-section details in terms of effects such as insulation, airtightness, and watertightness.

Developed to meet the needs of this industry of the present invention, the main object is to provide a vertical member and horizontal member mounting structure of the unit type steel curtain wall having a cross-sectional detail of the male and female coupling method suitable for roll forming.

In the vertical member mounting structure of the unit type steel curtain wall of the present invention for achieving the above object, the double glass is coupled to the front by a structural sealant, the back panel is provided on both sides with a predetermined distance from the rear of the double glass In the curtain wall vertical member mounting structure to be coupled, the vertical member is composed of a male vertical member and a female vertical member, the male vertical member forms a rectangular body as a whole, and a pair of protruding coupling portions are formed at regular intervals on one side thereof. The female vertical member has a rectangular body as a whole, and a pair of concave coupling portions are formed at one side thereof so that the protruding coupling portion can be inserted therein, and a waterproof sealant gasket is formed between the protruding coupling portion and the concave coupling portion through a coupling bracket. This insert is installed.

In addition, the protruding coupling portion is formed to protrude in a flat shape in which both inner surfaces are in close contact, and the concave coupling portion is formed in the inner space to accommodate the protruding coupling portion between both inner surfaces, and the coupling bracket is in close contact with the inner surface of the concave coupling portion. To be combined.

In addition, the concave coupling portion is a "⊃" shape, the coupling bracket is a "b" shape of the horizontal portion of the gasket mounting portion for receiving the waterproof sealant gasket is provided and the vertical portion is the concave coupling portion And bolts are combined.

In addition, the front surface of the rectangular body of the male vertical member is formed with a locking projection on the outer end, the mounting bracket coupled to the double glass is tightly coupled to the front surface of the rectangular body based on the locking projection.

On the other hand, in the horizontal member mounting structure of the unit-type steel curtain wall of the present invention for achieving the above object, a double glass is coupled to the front by a structural sealant, the side is provided with a predetermined distance from the rear of the double glass In the curtain wall horizontal member mounting structure to which the panel is coupled, the horizontal member is composed of an upper horizontal member and a lower horizontal member, the upper horizontal member is a rectangular body as a whole and a recess is formed on one side, the lower horizontal member Has a rectangular body as a whole, the rear end of which is formed an upper projection coupled to the rear of the upper horizontal member and a lower projection coupled to the back panel, the rear projection of the upper horizontal member and the upper projection of the lower horizontal member The waterproof sealant gasket is inserted between the mounting brackets .

In addition, a closed cell for air baffle is inserted into the recess of the upper horizontal member.

In addition, the upper protrusion and the lower protrusion of the lower horizontal member is formed in a flat form in which both inner surfaces are in close contact, the upper protrusion of the lower horizontal member is formed with a horizontal bent portion at its end.

In addition, the front surface of the rectangular body of the upper horizontal member is formed with a locking projection at the upper end, the mounting bracket coupled to the double glass is tightly coupled to the front surface of the rectangular body based on the locking projection.

According to the vertical member and horizontal member mounting structure of the unit type steel curtain wall of the present invention configured as described above, by providing a steel curtain wall having a cross-sectional detail suitable for roll forming so that the steel curtain wall can be easily used in a high-rise or high-rise building Do it.

In addition, the mounting structure of the present invention can ultimately increase the steel demand by activating the use of steel curtain wall that is superior in structure, fire resistance, insulation performance and construction stability than the existing aluminum curtain wall.

1 is a cross-sectional view of a vertical member mounting structure of a conventional unit type aluminum curtain wall.
Figure 2 is a cross-sectional view of the vertical member mounting structure of the unit type steel curtain wall of the present invention.
3 is a cross-sectional view of a horizontal member mounting structure of a conventional unit type aluminum curtain wall.
Figure 4 is a cross-sectional view of the horizontal member mounting structure of the unit type steel curtain wall of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in more detail the technical configuration of the present invention. As described above, the vertical member (Mullion) and the horizontal member (Transom) for holding the glass member in the curtain wall is the structural most important, the present invention is steel curtain wall suitable for roll forming for each of these vertical member, horizontal member It is to provide a mounting structure.

First, the technical features of the vertical member mounting structure of the unit type steel curtain wall according to the present invention will be described in detail compared with the conventional aluminum curtain wall vertical member mounting structure. Figure 1 shows a conventional aluminum curtain wall vertical member mounting structure, Figure 2 shows a steel curtain wall vertical member mounting structure of the present invention.

As shown in Figure 1, the vertical member of the aluminum curtain wall is composed of a form in which the two left and right vertical members (100,200) having a similar appearance are mutually coupled. The double glass 300 is coupled to the front of the left and right vertical members 100 and 200 by the waterproof central gasket 310, the waterproof sealant 320 and the structural sealant 330, and the left and right vertical members 100 and 200 of the vertical member 100 and 200. Both sides are provided with a back panel 400 installed at a predetermined distance from the rear surface of the double glass 300 and the heat insulating material 410 made of glass fiber is embedded therein.

The left vertical member 100 is part of a rectangular body 110, the rear end of the rectangular body 110 is formed with a horizontal protrusion 112, the front surface of the rectangular body 110, the gasket mounting portion 114 It is formed, the front of the "┗" shaped coupling connection portion 116 is formed to extend and the waterproof central bracket 310 is coupled thereto.

The right vertical member 200 is part of the rectangular body 210, the rear end of the rectangular body 210 is a concave coupling portion for receiving the horizontal projection 110 of the left vertical member 100 and the gasket mounting portion formed 212 is formed, the front surface of the rectangular body 210 is formed with a horizontal protrusion 214 extending to the gasket mounting portion 114 of the left vertical member 100, the front of the "┛" shaped coupling The connection part 216 is extended and the waterproof center bracket 310 is coupled thereto.

Between the horizontal protrusion 112 of the left vertical member 100 and the concave coupling portion 212 of the right vertical member 200, the gasket mounting portion 114 and the right vertical member 200 of the left vertical member 100 Waterproof gaskets 340 and 350 are inserted between the horizontal protrusions 214, respectively.

On the other hand, the back panel 400 is manufactured by the two panels are assembled by the heat shield 450 and the coupling bolt 460, the left and right sides of the vertical member (100, 200) is fastened to the coupling bolt 430 The waterproof gasket 440 is inserted into the installed mounting bracket 420 to ensure airtightness.

According to the aluminum curtain wall vertical member mounting structure configured as described above, since the left and right vertical members 100 and 200 have very complicated cross-sectional details in which horizontal protrusions 112 and 214, gasket mounting 114, and coupling connectors 116 and 216 are formed. As a roll forming method applied to steel materials, there was a limitation in manufacturing. In particular, such a detailed configuration as the gasket mounting 114 corresponds to a cross-sectional shape that is almost impossible to make by roll forming.

The present invention has been developed to solve the problems of the conventional aluminum curtain wall vertical member mounting structure. As shown in FIG. 2, the unit type steel curtain wall vertical member of the present invention is also the same in that the two vertical members are configured to be coupled to each other. However, the two vertical members 10 and 20 according to the present invention have relatively simple cross-sectional details than the aluminum vertical member in that the two vertical members 10 and 20 form an overall rectangular body.

In more detail, the vertical member of the present invention includes a male vertical member 10 having protruding coupling parts 12 and 13 and a female vertical member 20 having concave coupling parts 22 and 23 formed therein.

The male vertical member 10 forms a rectangular body 11 as a whole, and a pair of protruding coupling parts 12 and 13 are formed on one side at a predetermined interval. The pair of protruding coupling portions 12 and 13 are formed to be biased at both ends, whereby it is stable in terms of structure.

The female vertical member 20 forms a rectangular body 21 as a whole, and a pair of concave coupling parts 22 and 23 are formed at one side thereof so that the protruding coupling parts 12 and 13 can be inserted therein.

As such, the male and female vertical members 10 and 20 of the present invention generally have a pair of protruding and concave shapes having the same shape while maintaining the overall rectangular shape, so that the cross-sectional details are very simple and can be manufactured by roll forming.

In addition, between the protruding coupling portion 12 and 13 of the male vertical member 10 and the concave coupling portion 22 and 23 of the female vertical member 20 through the coupling brackets 35 and 37, a waterproof sealant gasket ( 36,38) are inserted and installed. According to the present invention, by using separate coupling brackets 35 and 37 made of aluminum or the like for a part requiring complex cross-section details such as a gasket mounting portion, the main frame of the vertical member can always maintain a simple cross section.

In addition, the protruding coupling portions 12 and 13 are protruded into a flat shape in which both inner surfaces are in close contact, and the concave coupling portions 22 and 23 accommodate the protruding coupling portions 12 and 13 between both inner surfaces. In order to form an inner space, the coupling brackets 35 and 37 are preferably coupled to be in close contact with the inner surfaces of the concave coupling portions 22 and 23.

More specifically, the concave coupling parts 22 and 23 form a “⊃” shape, and the coupling brackets 35 and 37 form a “A” shape, among which the waterproof sealant gasket 36 is formed in a horizontal portion. A gasket mount for accommodating 38 is provided and the vertical portion is configured to be bolted to the concave couplings 22 and 23.

This technical configuration is one of the simplest and most effective of the mounting structure of the coupling brackets 35 and 37 as well as the insertion configuration of the protrusion coupling parts 12 and 13 and the concave coupling parts 22 and 23.

In addition, the front surface of the rectangular body 11 of the male vertical member 10 is formed with a locking projection 14 on the outer end, the mounting bracket 34 coupled to the double glass 30 is the locking projection 14 The bolt is tightly coupled to the front of the rectangular body (11) based on. In this case, the engagement of the locking protrusion 14 as a reference means that one surface of the mounting bracket 34 is coupled to the locking protrusion 14 in a state of being in close contact with each other, whereby the bolt holes can be easily matched, thereby assembling work. It can be done easily.

In addition, the double glass 30 is mounted to the male and female vertical members 10 and 20 by the waterproof central bracket 31, the waterproof sealant 32, and the structural sealant 33, and the male and female vertical members 10 and 20. The back panel 40 is installed on both sides of the heat insulating material 41 is installed, the back panel 40 is produced by the two panels are assembled by the heat shield 45 and the coupling bolt 46, the male and female The waterproof gasket 44 is inserted into the mounting bracket 42 fastened by the coupling bolt 43 with the side surfaces of the vertical members 10 and 20. This configuration is almost the same as in the case of the aluminum curtain wall described with reference to FIG.

Next, the technical features of the horizontal member mounting structure of the unit type steel curtain wall according to the present invention will be described in detail compared with the conventional aluminum curtain wall horizontal member mounting structure. Figure 3 shows the aluminum curtain wall horizontal member mounting structure that is conventionally used a lot, Figure 4 shows the steel curtain wall horizontal member mounting structure of the present invention.

As shown in FIG. 3, in the horizontal member of the aluminum curtain wall, the upper horizontal member 500 and the lower horizontal member 600 are disposed at regular intervals from each other, and a closed cell for air baffle for airtightness therebetween. (Air baffle closed cell, 740, 750, 760) is inserted and installed.

The upper horizontal member 500 forms a rectangular body 510 of the front portion, the extension portion 520 is bent in a complicated form to the rear is formed, the adhesive projection 512 for the factory sealant (Factory sealant) The surface is formed in several places.

The lower horizontal member 600 forms a rectangular body 610 at a rear portion thereof, and an extension 620 bent forward in a complicated shape is formed, and the upper horizontal member 500 is formed at the rear end of the body 610. The upper projection 630 is coupled to the rear and the waterproof gasket 930 via a medium is formed.

In addition, the double glass 700 is mounted on the upper and lower horizontal members 500 and 600 by the waterproof central bracket 710, the waterproof sealant 720, the structural sealant 730, and the upper and lower horizontal members 500 and 600, respectively. One side is provided with a back panel 800 is built with a heat insulating material 810, the back panel 800 is coupled to the lower projection 640 of the lower horizontal member 600 via a waterproof gasket 820. Reference numerals 900, 910 and 920 denote mounting brackets which are additionally installed, and 922 denote bolts for the mounting brackets.

According to the aluminum curtain wall horizontal member mounting structure configured as described above, since the upper and lower horizontal members 500 and 600 have very complicated cross-sectional details, there is a limit in manufacturing the roll forming method applied to the steel material. In particular, fine constructions such as gluing projections 512 and 614 correspond to cross-sectional shapes that are almost impossible to make by roll forming.

The present invention was developed to solve the problems of the conventional aluminum curtain wall horizontal member mounting structure. As shown in FIG. 4, the steel curtain wall horizontal member of the unit type according to the present invention is also the same in that the two horizontal members are configured to be coupled to each other. However, the two upper and lower horizontal members 50 and 60 according to the present invention have relatively simple cross-sectional details than the aluminum horizontal members in that they form a rectangular body as compared with FIG. 3.

In more detail, the upper horizontal member 50 forms a rectangular body 51 as a whole and a concave portion 52 is formed on one side thereof. The concave portion 52 has an inner space formed between both inner surfaces, and an air baffle closed cell 77 is inserted therein for airtightness.

In addition, the lower horizontal member 60 forms a rectangular body 61 as a whole, and the rear end thereof is coupled to the upper protrusion 62 and the back panel 80 coupled to the rear surface of the upper horizontal member 50. The lower protrusion 64 is formed, and the waterproof sealant gasket 93 is provided between the rear surface of the upper horizontal member 50 and the upper protrusion 62 of the lower horizontal member 60 via the mounting bracket 90. Insert is installed.

In addition, the upper protrusion 62 and the lower protrusion 64 of the lower horizontal member 60 is manufactured in a flat form in which both inner surfaces are in close contact to reduce the cross-sectional area of the frame.

In addition, the upper protrusion 62 of the lower horizontal member 60 has a horizontal bending portion 63 formed at the end thereof to further improve the airtightness of the waterproof sealant gasket 93 installed through the mounting bracket 90.

On the other hand, the front surface of the rectangular body 51 of the upper horizontal member 50 is formed with a locking projection 53 at the upper end, the mounting bracket 75 coupled with the double glass 30 is the locking projection 53 It is preferable to be in close contact with the front surface of the rectangular body 51 on the basis of. Here, coupling based on the locking protrusion 53 means that one surface of the mounting bracket 75 is coupled to the locking protrusion 14 in a state of being in close contact, whereby the mounting position of the mounting bracket 75 is easily found. Can facilitate assembly work.

In addition, the double glass 70 is mounted on the upper and lower horizontal members 50 and 60 by the waterproof center bracket 71, the waterproof sealant 72 and the backup material 73, the structural sealant 74, and the like. The back panel 80 having a heat insulating material 81 is installed on both side surfaces of the lower horizontal members 50 and 60, and the back panel 80 is waterproof to the lower protrusion 64 of the lower horizontal member 60. 84 are combined through the medium. Reference numerals 91 and 93 denote mounting brackets to be additionally installed, and 92 denote bolts for mounting brackets.

Although the present invention has been described in detail using the preferred embodiments, the scope of the present invention is not limited to the specific embodiments, and should be interpreted by the appended claims. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

10: male vertical member 20: female vertical member
30: double glass 40: back panel
50: upper horizontal member 60: lower horizontal member
70: double glass 80: back panel

Claims (9)

In the front surface of the double wall 30 is joined by the structural sealant 33, the both sides of the curtain wall vertical member mounting structure in which the back panel 40 installed at a predetermined distance from the rear of the double glass 30 is coupled ,
The vertical member is composed of a male vertical member 10 and a female vertical member 20,
The male vertical member 10 forms a rectangular body 11 as a whole, and a pair of protruding coupling parts 12 and 13 are formed at one side at a predetermined interval.
The female vertical member 20 forms a rectangular body 21 as a whole, and a pair of concave coupling parts 22 and 23 are formed at one side thereof so that the protruding coupling part 12 can be inserted therein.
Unit type steel, characterized in that the waterproof sealant gasket (36,38) is inserted between the protruding coupling portion (12, 13) and the concave coupling portion (22, 23) via the coupling bracket (35, 37). Vertical member mounting structure of curtain wall. The method according to claim 1,
The protruding coupling parts 12 and 13 are protruded into a flat shape in which both inner surfaces are in close contact with each other, and the concave coupling parts 22 and 23 are internal to accommodate the protruding coupling parts 12 and 13 between both inner surfaces. Space is formed, the mounting bracket (35,37) is a vertical member mounting structure of the unit type steel curtain wall, characterized in that coupled to be in close contact with the inner surface of the concave coupling portion (22,23). The method according to claim 2,
The concave coupling parts 22 and 23 form a “⊃” shape, and the coupling brackets 35 and 37 form a “A” shape, among which the waterproof sealant gaskets 36 and 38 are accommodated in a horizontal portion. The gasket mounting portion is provided and the vertical portion is a vertical member mounting structure of the unit type steel curtain wall, characterized in that bolted to the concave coupling portion (22, 23). The method according to claim 1,
The front surface of the rectangular body 11 of the male vertical member 10 is formed with a locking projection 14 at the outer end, and the mounting bracket 34 coupled with the double glass 30 opens the locking projection 14. Vertical member mounting structure of the unit type steel curtain wall, characterized in that the close contact with the front of the rectangular body (11) as a reference. In the front surface of the curtain wall horizontal member mounting structure in which the double glass 70 is coupled by the structural sealant 74, and the back panel 80 installed at a predetermined distance from the rear surface of the double glass 70 is coupled to the front surface. ,
The horizontal member is composed of an upper horizontal member 50 and a lower horizontal member 60,
The upper horizontal member 50 forms a rectangular body 51 as a whole and a concave portion 52 is formed on one side thereof.
The lower horizontal member 60 constitutes a rectangular body 61 as a whole, and at the rear end thereof, an upper protrusion 62 coupled to a rear surface of the upper horizontal member 50 and a lower protrusion coupled to the back panel 80. 64 is formed,
Unit type, characterized in that the waterproof sealant gasket 93 is inserted between the rear surface of the upper horizontal member 50 and the upper protrusion 62 of the lower horizontal member 60 via the mounting bracket 90. Horizontal member mounting structure of steel curtain wall. The method according to claim 5,
The horizontal member mounting structure of the unit-type steel curtain wall, characterized in that the recessed portion 52 of the upper horizontal member 50 is inserted into the air baffle closed cell (Closed cell). The method according to claim 5,
The upper projecting portion 62 and the lower projecting portion 64 of the lower horizontal member 60 is a horizontal member mounting structure of the unit type steel curtain wall, characterized in that the inner surface is in close contact with the flat form. The method of claim 6,
The upper projection 62 of the lower horizontal member 60 is a horizontal member mounting structure of the unit type steel curtain wall, characterized in that the horizontal bent portion 63 is formed at the end thereof. The method according to claim 5,
A locking protrusion 53 is formed at an upper end on a front surface of the rectangular body 51 of the upper horizontal member 50, and a mounting bracket 75 coupled with the double glass 30 is based on the locking protrusion 53. Horizontal member mounting structure of the unit type steel curtain wall, characterized in that the close contact with the front of the rectangular body (51).
KR1020100136083A 2010-12-27 2010-12-27 Structure for coupling vertical and horizontal part of unitized steel coutain wall KR101235718B1 (en)

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KR101427334B1 (en) 2013-10-29 2014-08-06 대림산업 주식회사 Unit type curtain wall incorporated C type steel channel and aluminum frame
KR101529559B1 (en) * 2014-07-04 2015-06-17 대림산업 주식회사 Unit type curtain wall structure incorporated C type steel channel and aluminum frame

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KR102025822B1 (en) * 2019-03-29 2019-09-25 최돈우 Cortain wall uint and its installation structure
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KR102401628B1 (en) 2020-10-05 2022-05-26 주식회사 씨앤에스스틸 Unit Type Curtain Wall Combining Both Sides of Same Shaped Steel Structure with Aluminum Adapter
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KR20010015926A (en) * 1999-08-24 2001-03-05 이기용 A Structure for Absorbing Inter Layer Displacement of Curtain-Wall
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Cited By (2)

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Publication number Priority date Publication date Assignee Title
KR101427334B1 (en) 2013-10-29 2014-08-06 대림산업 주식회사 Unit type curtain wall incorporated C type steel channel and aluminum frame
KR101529559B1 (en) * 2014-07-04 2015-06-17 대림산업 주식회사 Unit type curtain wall structure incorporated C type steel channel and aluminum frame

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