KR20080099755A - Formed steel beam for steel-concrete composite beam and slab - Google Patents

Formed steel beam for steel-concrete composite beam and slab Download PDF

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Publication number
KR20080099755A
KR20080099755A KR1020070045721A KR20070045721A KR20080099755A KR 20080099755 A KR20080099755 A KR 20080099755A KR 1020070045721 A KR1020070045721 A KR 1020070045721A KR 20070045721 A KR20070045721 A KR 20070045721A KR 20080099755 A KR20080099755 A KR 20080099755A
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South Korea
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steel sheet
vertical portion
steel
slab
sheet assembly
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KR1020070045721A
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Korean (ko)
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KR100870071B1 (en
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배규웅
허병욱
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한국건설기술연구원
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

A molding steel sheet assembly beam is provided to make the adjustment of lateral surface height possible and to gain an excellent productivity since the molding steel sheet in not manufactured in the factory. A molding steel sheet assembly beam comprises a base part(111,121), a side perpendicular part(112,122) curved upward from the one-side end of base part, a support part(113,123) which is curve-cut in the top of the side perpendicular part, a first molding steel sheet(110) which is shaped from the other side end of base part in order to have center vertical parts(114,124) curved upward, a base part, a side perpendicular part curved upward from the one-side end of base part, a support part which is curve-cut on the top of the side perpendicular part, a center vertical part curved upward from the other side end of base part, a second molding steel sheet(120) which is shaped in order to have the part of upper flange(125).

Description

층고절감형 강-콘크리트 합성보-슬래브용 성형강판 조립 보{Formed steel beam for steel-concrete composite beam and slab}Formed steel beam for steel-concrete composite beam and slab}

도 1은 본 발명에 따른 성형강판 조립 보의 사시도이다.1 is a perspective view of a molded steel sheet assembly beam according to the present invention.

도 2는 본 발명에 따른 성형강판 조립 보의 단면도이다.2 is a cross-sectional view of the molded steel sheet assembly beam according to the present invention.

도 3은 본 발명에 따른 성형강판 조립 보를 이용한 합성보-슬래브의 단면도이다.3 is a cross-sectional view of the composite beam-slab using the formed steel sheet assembly beam according to the present invention.

도 4a, 4b는 본 발명에 따른 성형강판 조립 보의 변형예를 나타낸 단면도이다.Figure 4a, 4b is a cross-sectional view showing a modification of the molded steel sheet assembly beam according to the present invention.

도 5는 본 발명에 따른 성형강판 조립 보의 다른 변형예를 나타낸 사시도이다.5 is a perspective view showing another modified example of the formed steel sheet assembly beam according to the present invention.

도 6a, 6b는 본 발명에 따른 성형강판 조립 보의 또 다른 변형예를 나타낸 단면도이다.6A and 6B are cross-sectional views showing yet another modified example of the molded steel sheet assembly beam according to the present invention.

도 7은 종래 슬림플로어 시스템을 개략적으로 나타낸 사시도이다.7 is a perspective view schematically showing a conventional slim floor system.

도 8은 종래 슬림플로어 시스템을 나타낸 단면도이다.8 is a cross-sectional view showing a conventional slim floor system.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

110 : 제 1 성형강판110: first forming steel sheet

111, 121 : 하면부111, 121: Lower surface part

112, 122 : 측면수직부112, 122: vertical side portion

113, 123 : 받침부113, 123: base

114, 124 : 중앙수직부114, 124: center vertical

125 : 상부 플랜지부125: upper flange

120 : 제 2 성형강판120: second forming steel sheet

본 발명은 층고절감형 강-콘크리트 합성보-슬래브 시스템에 적용되는 성형강판 조립 보에 관한 것이다.The present invention relates to a molded steel sheet-fabricated beam applied to a layer-reduced steel-concrete composite beam-slab system.

철골조 건물은 철근콘크리트조 건물에 비해 공간의 가변성과 구조의 안전성 및 내구성이 뛰어난 장점이 있는 반면 강재 보의 상부에 슬래브를 얹기 때문에 전체적인 층고가 증가하는 문제가 있다.Steel framed building has the advantage of excellent space variability, safety and durability of the structure compared to reinforced concrete building, but there is a problem that the overall height is increased because the slab is placed on top of the steel beam.

이러한 문제점을 해결하기 위해, 슬래브를 강재 보의 춤 내에서 시공가능하도록 하는 슬림플로어(Slim Floor)공법이 다양하게 개발되어 사용되고 있다. In order to solve this problem, a slim floor (Slim Floor) method for constructing the slab can be constructed in the dance of steel beams have been developed and used in various ways.

슬림플로어공법이란, 도 7, 8에 도시된 바와 같이, 슬래브를 춤이 깊은 데크플레이트(20) 혹은 속 빈 프리캐스트 콘크리트 슬래브를 사용하고 이를 지지할 수 있도록 강재 보(10)의 하부 플랜지(11) 폭이 확대된 비대칭 강재 보로 구성된다. As shown in Figs. 7 and 8, the slim floor method uses the lower deck plate 11 of the steel beam 10 so that the slab can use and support the deep deck plate 20 or the hollow precast concrete slab. ) Consists of asymmetrical steel beams with increased width.

이는 데크플레이트와 콘크리트 슬래브로 이루어진 합성슬래브 구조와 비슷하지만 일반적인 합성슬래브와는 달리 H형강이나 각형강관의 하부 플랜지(11)에 플레 이트(12)를 추가로 용접하여 데크플레이트를 보 부재의 하부 플랜지에 용접된 플레이트 위에 오도록 하여 층고를 줄이는 방식이다.This is similar to a composite slab structure consisting of deck plates and concrete slabs, but unlike ordinary composite slabs, the plate 12 is additionally welded to the lower flange 11 of the H-beam or square steel pipe to connect the deck plate to the lower flange of the beam member. This is to reduce the height of the floor by placing it on the plate welded on.

이러한 슬림플로어 합성보-슬래브 시스템의 경우 층고절감 효과는 매우 우수하나 적용 가능한 슬래브 시스템의 한계로 합성보-슬래브의 춤이 제한적이기 때문에 시공 가능한 스팬에 한계를 나타내었다. In the case of such a slim floor composite beam-slab system, the layer height reduction effect is very good, but the limitation of the applicable slab system shows a limitation in the applicable span since the dance of the composite beam-slab is limited.

한편, 층고절감을 위하여 개발된 국내의 합성보-슬래브 시스템의 경우에도 층고절감 효과가 적거나 비대칭 강재 보의 제작 및 시공시의 적용 효율성이 크지 않는 등의 불편한 점들이 발견되곤 하였다.On the other hand, even in the case of the domestic composite beam-slab system developed for reducing the height of the floor, inconveniences such as low effect of reducing the height of the floor or low application efficiency during the fabrication and construction of the asymmetric steel beams have been found.

더욱이 최근의 강재 가격 상승으로 순수 철골조에 의한 합성슬래브 시스템을 적용하기 보다는 비교적 비용이 저렴한 콘크리트를 충분히 활용할 수 있는 합성보-슬래브 시스템에 대한 연구가 더욱 필요한 실정이다.Moreover, due to the recent rise in steel prices, research on composite beam-slab systems that can fully utilize relatively inexpensive concrete is needed rather than applying the composite slab system by pure steel frame.

본 발명은 합성슬래브의 생산 제원 및 보의 스팬 등에 관계없이 자유로이 층고를 절감할 수 있으면서도 건축물의 고층화에 대응하고 바닥거푸집 및 철근 배근의 생략을 통한 시공성 및 경제성이 개선된 성형강판 조립 보를 제공하는 데 있다. The present invention is to provide a molded steel sheet assembly beam improved construction and economical efficiency by coping with the high floor of the building and eliminating the floor formwork and reinforcement, while reducing the floor height freely regardless of the production specifications of the synthetic slab and the span of the beam, etc. have.

이하 본 발명의 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 성형강판 조립 보의 사시도이고, 도 2는 본 발명에 따른 성형강판 조립 보의 단면도이며, 도 3은 본 발명에 따른 성형강판 조립 보를 이용한 합성보-슬래브의 단면도이다.1 is a perspective view of a molded steel sheet assembly beam according to the present invention, Figure 2 is a cross-sectional view of a molded steel sheet assembly beam according to the present invention, Figure 3 is a cross-sectional view of a composite beam-slab using a molded steel sheet assembly beam according to the present invention.

도시된 바와 같이 본 발명에 따른 성형강판 조립 보는 2개의 성형강판을 접합하여 구성된다.As shown, the molded steel sheet assembly beam according to the present invention is constructed by joining two molded steel sheets.

도면을 참조하면, 제 1 성형강판(110)은 하면부(111)와, 상기 하면부(111)의 일측단으로부터 수직하게 상향 절곡된 측면수직부(112)와, 상기 측면수직부(112)의 상단에서 외측으로 수평하게 절곡된 받침부(113)와, 상기 하면부(111)의 타측단으로부터 수직하게 상향 절곡된 중앙수직부(114)를 갖도록 하나의 강판을 성형하여 제작된다.Referring to the drawings, the first formed steel sheet 110 is a lower surface portion 111, a side vertical portion 112 bent vertically upward from one side end of the lower surface portion 111, and the side vertical portion 112 It is manufactured by molding one steel plate to have a support portion 113 bent horizontally outward from the top of the upper portion, and a central vertical portion 114 bent vertically upward from the other end of the lower surface portion 111.

제 2 성형강판(120)은 하면부(121)와, 상기 하면부(121)의 일측단으로부터 수직하게 상향 절곡된 측면수직부(122)와, 상기 측면수직부(122)의 상단에서 외측으로 수평하게 절곡된 받침부(123)와, 상기 하면부(121)의 타측단으로부터 수직하게 상향 절곡된 중앙수직부(124)와, 상기 중앙수직부(124)의 상단을 역삼각형 형상으로 절곡한 상부 플랜지부(125)를 갖도록 하나의 강판을 성형하여 제작된다.The second formed steel plate 120 has a lower surface portion 121, a side vertical portion 122 bent vertically upward from one side end of the lower surface portion 121, and an upper side of the side vertical portion 122. A bent portion 123 horizontally bent, a central vertical portion 124 bent vertically upward from the other end of the lower surface portion 121, and an upper end of the central vertical portion 124 bent in an inverted triangle shape; It is manufactured by molding one steel sheet to have an upper flange portion 125.

이때, 상기 상부 플랜지부(125)는 강재량을 최소화하고 콘크리트에 매입함으로써 부착성능 및 내화성능을 향상시키고 부모멘트에 대한 휨저항 성능에 기여할 수 있다면 도시된 역삼각형 이외에 도 6a, 6b에 도시된 바와 같이 원형이나 직사각형 등 다양한 단면형상으로 성형 가능하다.At this time, the upper flange portion 125 is shown in Figures 6a, 6b in addition to the inverted triangle shown if it can minimize the amount of steel and improve the adhesion performance and fire resistance performance and contribute to the bending resistance performance of the parent by embedding in concrete As described above, it can be molded into various cross-sectional shapes such as circular or rectangular.

그리고 상기 제 1 성형강판(110)의 중앙수직부(114)와 상기 제 2 성형강판(120)의 중앙수직부(124)를 서로 맞대고 접합시키면 본 발명에 따른 성형강판 조립 보가 완성된다.When the center vertical portion 114 of the first formed steel sheet 110 and the center vertical portion 124 of the second formed steel sheet 120 are joined to each other and bonded to each other, the formed steel sheet assembly beam according to the present invention is completed.

접합방법으로는 용접 또는 볼팅이 선택적으로 사용될 수 있으며, 볼팅 접합함으로써 접합에 사용되는 볼트가 전단연결재로서 기능하도록 하는 것이 바람직하다.Welding or bolting may optionally be used as the joining method, and it is preferable that the bolts used for joining function as a shear connector by bolting.

상기 제 1, 2 성형강판(110)(120)에 있어, 상기 받침부(113)(123)은 상기 중앙수직부(112)(122)의 상단에서 내측 또는 외측으로 수평하게 절곡할 수 있다. 내측으로 절곡할 경우, 슬래브가 철골단면의 내측으로 진입하면서 처짐발생시 더욱 안정적인 거동을 할 수 있고 콘크리트가 철골단면에 의하여 완전히 감싼 형태를 갖기 때문에 부착면적이 증대되어 더 우수한 합성작용을 할 수 있다. 그러나 내측으로 절곡된 받침부는 콘크리트 타설시 철골단면 내부에 콘크리트의 충전이 불편하며 밀실성의 확보도 곤란해지고 현장시공시 하부 인장보강철근의 작업조건이 불편해진다. 또한 측면수직부의 높이가 매우 커질 경우 중앙수직부로의 접근성이 떨어져 기둥-보 접합의 시공성이 저하될 가능성이 있다. 따라서 현장의 시공성을 향상시키기 위해서는 받침부를 외측으로 절곡하는 것이 바람직하다.In the first and second molded steel sheets 110 and 120, the support parts 113 and 123 may be horizontally bent inward or outward from an upper end of the central vertical parts 112 and 122. When bent inward, the slab enters the inner side of the steel frame can be more stable behavior when the deflection occurs, and because the concrete is completely wrapped by the steel cross section, the adhesion area is increased to perform a better synthesis. However, the support part bent inward is inconvenient to fill the concrete inside the steel frame when placing concrete, it is difficult to secure the sealability, and the working conditions of the lower tensile reinforcing bar becomes inconvenient during site construction. In addition, if the height of the side vertical portion is very large, there is a possibility that the accessibility to the central vertical portion is reduced and the workability of the column-beam connection is reduced. Therefore, in order to improve the workability of the site, it is preferable to bend the support portion outward.

이상에서 살펴본 바와 같이 본 발명에 따른 성형강판 조립 보는 상부 압축측은 플랜지의 폭이 좁고 하부 인장측은 플랜지의 폭이 넓은 비대칭구조이고 다양한 슬래브를 조립 보의 춤 내에서 시공가능 하도록 측면수직부의 높이조절이 자유롭게 성형한 형상이다. As described above, the upper compression side of the molded steel sheet assembly according to the present invention has a narrow width of the flange and the lower tension side has a wide asymmetrical structure of the flange, and the height of the side vertical portion is adjustable so that various slabs can be constructed in the dance of the assembled beam. It is freely shaped.

상기한 실시예들에서는 제 1, 2 성형강판(110)(120)의 하면부(111)(121), 측면수직부(112)(122) 및 받침부(113)(123)가 좌우 대칭인 경우에 대해 설명하였지만, 이들은 서로 비대칭인 단면형상을 가질 수도 있다.In the above-described embodiments, the lower surface portions 111 and 121, the side vertical portions 112 and 122, and the support portions 113 and 123 of the first and second formed steel sheets 110 and 120 are symmetrical from left to right. Although the case has been described, they may have cross-sectional shapes which are asymmetric with each other.

즉, 도 4a에 도시된 바와 같이, 측면수직부(112)(122)의 길이를 서로 다르게 함으로써 제 1, 2 성형강판(110)(120)의 받침부(113)(123)에 서로 다른 슬래브 시스템을 얹혀 시공할 수 있다. 그리고 도 4b에 도시된 바와 같이 하면부(111)(121)의 폭을 서로 다르게 할 수도 있다. That is, as shown in Figure 4a, by varying the length of the side vertical portion (112, 122) different slabs different from the support portion 113, 123 of the first and second formed steel sheets (110, 120). It can be installed by mounting the system. As shown in FIG. 4B, the widths of the lower surfaces 111 and 121 may be different from each other.

한편, 제 2 성형강판(120)의 중앙수직부(124)에는 복수의 개구부(126)를 형성하는 것이 가능하다. 이 개구부(126)는 다웰 작용(Dowel action)을 통해 성형강판 조립 보와 콘크리트간의 일체성을 향상시키고, 슬래브 철근을 손쉽게 관통시킬 수 있어 수평 전단내력 향상을 도모할 수 있으며, 인접하는 슬래브 사이의 연속성을 강화하고 전기/배관용 설비공간으로도 활용가능하다.On the other hand, it is possible to form a plurality of openings 126 in the central vertical portion 124 of the second formed steel sheet 120. The opening 126 improves the integrity between the formed steel plate assembly beam and the concrete through the dowel action, and can easily penetrate the slab reinforcing bar, thereby improving the horizontal shear strength, and between the adjacent slabs. It can enhance the continuity and use it as a facility space for electricity and piping.

이상에서 살펴본 바와 같이 본 발명에 따른 성형강판 조립 보는 복수의 성형강판을 서로 접합하여 제작함으로써 기존의 층고절감 방식과는 달리 높이조절이 가능하고 다양한 슬래브 시스템을 적용할 수 있으며 단면형상이 기존의 H형강 합성보와 호환이 가능하기 때문에 기존 H형강을 조립 보로 사용한 기둥-보 접합방식을 별도의 변경 없이 그대로 사용할 수 있다. 또한 공장에서 성형으로 생산되기 때문에 제작시의 생산성 및 경제성이 우수하고 현장 시공시 거푸집 작업의 생략이 가능하고 접합이 비교적 간편하기 때문에 공기가 단축된다.As described above, by forming a plurality of molded steel sheets bonded together according to the present invention by joining a plurality of molded steel sheets, unlike the existing layer reduction method can be adjusted in height and various slab systems can be applied and the cross-sectional shape of the existing H Since it is compatible with the composite steel beam, the column-beam joining method using the existing H-beam as the assembled beam can be used without any change. In addition, because it is produced by molding in the factory, the productivity and economics at the time of manufacturing is excellent, the formwork can be omitted during the construction site, and the air is shortened because the bonding is relatively simple.

상술한 바와 같이 본 발명에 따르면, 성형강판 조립 보의 양단 측면수직부의 높이 조절이 가능하고, 성형강판을 공장에서 성형 생산하기 때문에 생산성 또한 우수하다.According to the present invention as described above, it is possible to adjust the height of the side vertical portion of both ends of the formed steel sheet assembly beam, and the productivity is also excellent because the molded steel sheet is produced in the factory.

또한 이를 이용한 합성보-슬래브는 충전된 콘크리트가 내부 수직강판을 감싸는 형식이기 때문에 자체의 단면형상으로도 상당한 부착성능을 발휘하며 필요시 하부에 인장철근을 배치할 경우 저렴한 비용으로 매우 우수한 단면성능을 나타낼 수 있다. 이 밖에도 콘크리트에 의한 열성능의 증가로 내화피복 비용이 크게 감소한다.In addition, the composite beam-slab using this type of material wraps around the inner vertical steel plate, so it shows great adhesion performance in its cross-sectional shape. When the reinforcing bar is placed underneath, it shows very good cross-section performance at low cost. Can be. In addition, the cost of fireproof coating is greatly reduced due to the increase in thermal performance by concrete.

또한 기둥과의 접합형식에 있어서도 기존의 H형강 합성보-슬래브의 접합방식을 그대로 사용할 수 있기 때문에 별도의 추가 시공이나 비용부담 없이 비교적 간편하게 시공이 가능하고 매우 우수한 접합부 강성을 확보할 수 있다.In addition, it is possible to use the existing H-beam composite beam-slab joining method as it is in the form of joining with a column, so that it is relatively simple to construct without additional construction or cost burden and secures excellent joint strength.

Claims (4)

하면부(111)와, 상기 하면부(111)의 일측단으로부터 수직하게 상향 절곡된 측면수직부(112)와, 상기 측면수직부(112)의 상단에서 수평하게 절곡된 받침부(113)와, 상기 하면부(111)의 타측단으로부터 수직하게 상향 절곡된 중앙수직부(114)를 갖도록 성형된 제 1 성형강판(110)과;A lower surface portion 111, a side vertical portion 112 bent vertically upward from one end of the lower surface portion 111, and a support portion 113 bent horizontally at an upper end of the side vertical portion 112; A first molded steel sheet (110) formed to have a central vertical portion (114) bent vertically upward from the other end of the bottom portion (111); 하면부(121)와, 상기 하면부(121)의 일측단으로부터 수직하게 상향 절곡된 측면수직부(122)와, 상기 측면수직부(122)의 상단에서 수평하게 절곡된 받침부(123)와, 상기 하면부(121)의 타측단으로부터 수직하게 상향 절곡된 중앙수직부(124)와, 상기 중앙수직부(124)의 상단을 소정의 형상으로 성형한 상부 플랜지부(125)를 갖도록 성형된 제 2 성형강판(120);을 포함하며,A lower surface portion 121, a side vertical portion 122 bent vertically upward from one side end of the lower surface portion 121, and a support portion 123 bent horizontally at an upper end of the side vertical portion 122; And formed to have a central vertical portion 124 vertically bent upwardly from the other end of the lower surface portion 121 and an upper flange portion 125 formed by forming an upper end of the central vertical portion 124 into a predetermined shape. It includes; the second molded steel sheet 120, 상기 제 1 성형강판(110)의 중앙수직부(114)와 상기 제 2 성형강판(120)의 중앙수직부(124)를 서로 맞대고 접합시킨 것을 특징으로 하는 성형강판 조립 보. Forming steel sheet assembly beam, characterized in that the central vertical portion 114 of the first molded steel sheet 110 and the central vertical portion 124 of the second molded steel sheet 120 are bonded to each other. 제 1 항에 있어서,The method of claim 1, 상기 제 2 성형강판(120)의 중앙수직부(124)에는 복수의 개구부(126)가 형성된 것을 특징으로 하는 성형강판 조립 보.Shaped steel sheet assembly beam, characterized in that a plurality of openings 126 is formed in the central vertical portion 124 of the second formed steel sheet 120. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기 제 1, 2 성형강판(110)(120)의 하면부(111)(121), 측면수직 부(112)(122) 및 받침부(113)(123)가 좌우 대칭 또는 비대칭인 것을 특징으로 하는 성형강판 조립 보.The lower surface portions 111 and 121, the side vertical portions 112 and 122, and the support portions 113 and 123 of the first and second formed steel sheets 110 and 120 are symmetrical or asymmetrical. Forming steel sheet assembly beam. 제 3 항에 있어서,The method of claim 3, wherein 상기 상부 플랜지부(125)의 형상은 역삼각형, 원형 또는 직사각형인 것을 특징으로 하는 성형강판 조립 보.Shape of the upper flange portion 125 is inverted triangular, circular or rectangular shaped steel sheet assembly, characterized in that the rectangular.
KR1020070045721A 2007-05-10 2007-05-10 Formed steel beam for steel-concrete composite beam and slab KR100870071B1 (en)

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