KR100908507B1 - High-strength steel-concrete composite beam using H-shaped steel and molded steel sheet - Google Patents

High-strength steel-concrete composite beam using H-shaped steel and molded steel sheet Download PDF

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KR100908507B1
KR100908507B1 KR1020070058091A KR20070058091A KR100908507B1 KR 100908507 B1 KR100908507 B1 KR 100908507B1 KR 1020070058091 A KR1020070058091 A KR 1020070058091A KR 20070058091 A KR20070058091 A KR 20070058091A KR 100908507 B1 KR100908507 B1 KR 100908507B1
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steel
steel sheet
molded
flange
shaped steel
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KR1020070058091A
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Korean (ko)
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KR20080109958A (en
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배규웅
허병욱
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한국건설기술연구원
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293Joists; 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/30Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17Floor structures partly formed in situ
    • E04B5/23Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17Floor structures partly formed in situ
    • E04B5/23Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/29Floor 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

Abstract

본 발명은 층고절감형 강-콘크리트 합성보-슬래브 시스템에 적용되는 H형강과 성형강판을 이용한 성형강판 조립 보에 관한 것이다.The present invention relates to a molded steel sheet assembling beam using H-shaped steel and molded steel sheet applied to the layer-reduced steel-concrete composite beam-slab system.
본 발명에 따른 성형강판 조립 보는 상부 플랜지와 웨브와 하부 플랜지를 갖는 H형강에, 하면부와 상기 하면부의 양측단으로부터 수직하게 상향 절곡된 측면수직부와 상기 측면수직부의 상단에서 수평하게 절곡된 받침부를 갖도록 성형된 성형강판을 접합한 것을 특징으로 한다. The shaped steel sheet assembly beam according to the present invention is a H-shaped steel having an upper flange and a web and a lower flange, a side vertical portion bent vertically upward from both sides of the lower surface portion and the lower surface portion and a support bent horizontally at the upper end of the side vertical portion. It is characterized in that the molded steel sheet molded to have a portion.

Description

에이치형강과 성형강판을 이용한 층고절감형 강-콘크리트 합성보-슬래브용 성형강판 조립 보{Formed steel beam for steel-concrete composite beam and slab using H-shaped steel and formed steel}Formed steel beam for steel-concrete composite beam and slab using H-shaped steel and formed steel}
도 1은 본 발명에 따른 성형강판 조립 보의 제 1 실시예를 나타낸 사시도이다.1 is a perspective view showing a first embodiment of a molded steel sheet assembly beam according to the present invention.
도 2는 본 발명에 따른 성형강판 조립 보의 제 1 실시예를 나타낸 단면도이다.2 is a cross-sectional view showing a first embodiment of a molded steel sheet assembly beam according to the present invention.
도 3은 본 발명의 제 1 실시예에 따른 성형강판 조립 보를 이용한 합성보-슬래브의 단면도이다.3 is a cross-sectional view of the composite beam-slab using the molded steel sheet assembly beam according to the first embodiment of the present invention.
도 4a 내지 도 4c는 본 발명의 제 1 실시예에 따른 성형강판 조립 보의 변형예들을 보여주는 단면도이다.4A to 4C are cross-sectional views showing modified examples of the formed steel sheet assembly beams according to the first embodiment of the present invention.
도 5는 본 발명에 따른 성형강판 조립 보의 제 2 실시예를 나타낸 사시도이다.5 is a perspective view showing a second embodiment of a molded steel sheet assembly beam according to the present invention.
도 6a 내지 6c는 본 발명의 제 2 실시예에 따른 성형강판 조립보의 변형예들을 보여주는 단면도이다.6a to 6c are cross-sectional views showing modified examples of the molded steel sheet assembly beam according to the second embodiment of the present invention.
도 7은 본 발명에 따른 성형강판 조립 보의 제 3 실시예를 나타낸 사시도이다.7 is a perspective view showing a third embodiment of a molded steel sheet assembly beam according to the present invention.
도 8a, 8b는 본 발명의 제 3 실시예에 따른 성형강판 조립 보의 변형예를 나타낸 단면도이다.8A and 8B are cross-sectional views showing modified examples of the formed steel sheet assembling beams according to the third embodiment of the present invention.
도 9는 종래 슬림플로어 시스템을 개략적으로 나타낸 사시도이다.9 is a perspective view schematically showing a conventional slim floor system.
도 10은 종래 슬림플로어 시스템을 나타낸 단면도이다.10 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 : H형강110: H section steel
111 : 상부 플랜지111: upper flange
112 : 웨브112: web
113 : 하부 플랜지113: lower flange
114 : 개구부114: opening
120 : 성형강판120: forming steel sheet
121 : 하면부121: lower surface part
122 : 측면수직부122: side vertical portion
123 : 받침부123: support
124 : 중앙수직부124: vertical center
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 시공 가능하도록 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 in the steel beam dance is being developed and used in various ways.
슬림플로어공법이란, 도 9, 10에 나타낸 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. 9 and 10, the slim floor method uses the deck plate 20 or hollow precast concrete slab having a deep dance and supports the lower flange 11 of the steel beam 10 to support the slab. Consists of an asymmetrical steel beam with a wider width.
이는 데크플레이트와 콘크리트 슬래브로 이루어진 합성슬래브 구조와 비슷하지만 일반적인 합성슬래브와는 달리 H형강이나 각형강관의 하부 플랜지(11)에 플레이트(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 conventional 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. It is a way to reduce the height by placing it on the welded plate.
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 적용하기보다는 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 그 목적이 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. The purpose is.
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 발명의 제 1 실시예에 따른 성형강판 조립 보의 사시도이고, 도 2는 그 단면도이며, 도 3은 성형강판 조립 보를 이용한 합성보-슬래브의 단면도이다. 1 is a perspective view of a molded steel sheet assembly beam according to a first embodiment of the present invention, Figure 2 is a cross-sectional view, Figure 3 is a cross-sectional view of a composite beam-slab using a molded steel sheet assembly beam.
도시된 바와 같이 본 실시예에 따른 성형강판 조립 보는 H형강과 하나의 성형강판을 접합하여 구성된다.As shown, the molded steel sheet assembly beam according to the present embodiment is configured by bonding the H-shaped steel and one molded steel sheet.
H형강(110)은 상부 플랜지(111), 웨브(112) 및 하부 플랜지(113)로 구성되며, 도면에는 상부 플랜지(111)와 하부 플랜지(113)의 폭이 같은 것으로 도시하였으나, 상부 플랜지(111)와 하부 플랜지(113)의 폭이 서로 다른 비대칭 단면으로 구성할 수도 있다. The H-shaped steel 110 is composed of an upper flange 111, a web 112 and a lower flange 113, and the upper flange 111 and the lower flange 113 shown in the drawings, the same width, but the upper flange ( 111 and the lower flange 113 may be configured in an asymmetric cross section different from each other.
성형강판(120)은 하면부(121)와, 상기 하면부(121)의 양측단으로부터 수직하 게 상향 절곡된 측면수직부(122)와, 상기 측면수직부(122)의 상단에서 수평하게 절곡된 받침부(123)를 갖도록 하나의 강판을 성형하여 제작된다.Formed steel sheet 120 is bent horizontally at the upper end of the lower surface portion 121, the side vertical portion 122 and vertically bent upwardly from both side ends of the lower surface portion 121, the side vertical portion 122 It is manufactured by molding one steel plate to have a supporting portion 123.
그리고 상기 H형강(110)의 하부 플랜지(113)의 하면에 성형강판(120)의 하면부(121)를 접합하면 본 실시예에 따른 성형강판 조립 보가 완성된다.Then, when the bottom portion 121 of the formed steel sheet 120 is bonded to the bottom surface of the lower flange 113 of the H-shaped steel 110, the formed steel sheet assembly beam according to the present embodiment is completed.
접합방법으로는 용접 또는 볼팅이 선택적으로 사용될 수 있으며, 볼팅 접합함으로써 접합에 사용되는 볼트가 기계적 연결장치로서 조립 보와 콘크리트 사이의 부착성능을 향상시키도록 하는 것이 바람직하다.Welding or bolting may optionally be used as the joining method, and it is preferable that the bolts used for joining by bolting joining improve the adhesion performance between the assembled beam and the concrete as a mechanical connecting device.
상기 성형강판(120)에 있어 상기 받침부(123)는 상기 측면수직부(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 감싸여진 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 H형강의 웨브로의 접근성이 떨어져 보-보 접합부 및 기둥-보 접합부 등의 시공성이 저하될 가능성이 있다. 따라서 현장의 시공성을 향상시키기 위해서는 받침부(123)를 외측으로 절곡하는 것이 바람직하다.In the molded steel sheet 120, the support 123 may be horizontally bent inward or outward from the upper end of the side vertical portion 122. When it is bent inward, the slab enters the inner side of the steel frame and can behave more stably when deflection occurs. Since the concrete is completely enclosed by the steel cross section, the adhesion area is increased so that a better synthetic action can be achieved. . 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 of the H-beams to the web is reduced, and the workability of the beam-beam joint and the column-beam joint is reduced. Therefore, in order to improve the workability of the site, it is preferable to bend the support 123 to the outside.
한편, 상기한 실시예에서는 성형강판(120)의 하면부(121), 측면수직부(122) 및 받침부(123)가 상기 H형강(110)의 웨브(112)를 기준으로 좌우 대칭인 경우에 대해 설명하였지만, 이들은 서로 비대칭인 단면형상을 가질 수도 있다. Meanwhile, in the above embodiment, when the lower surface 121, the side vertical portion 122, and the support portion 123 of the formed steel plate 120 are symmetrical with respect to the web 112 of the H-shaped steel 110. Although described for, they may have cross-sectional shapes that are asymmetric with each other.
즉, 도 4a에 도시된 바와 같이, 측면수직부(122)의 길이를 서로 다르게 함으로써 성형강판(120)의 받침부(123)에 서로 다른 슬래브 시스템을 얹혀 시공할 수 있고, 도 4b에 도시된 바와 같이, H형강(110)의 웨브(112)를 기준으로 하면부(121)의 좌우 폭이 서로 다르게 성형강판(120)을 접합하는 것도 가능하다.That is, as shown in Figure 4a, by varying the length of the side vertical portion 122 can be installed by mounting a different slab system on the support portion 123 of the formed steel sheet 120, shown in Figure 4b As described above, it is also possible to bond the formed steel plate 120 with the left and right widths of the lower surface portion 121 different from each other based on the web 112 of the H-shaped steel 110.
또한, 도 4c에 도시된 바와 같이, H형강(110)의 웨브(112)에 복수의 개구부(114)를 형성하는 것이 가능하다. 이 개구부(114)는 다웰 작용(Dowel action)을 통해 성형강판 조립 보와 콘크리트 간의 일체성을 향상시키고, 슬래브 철근을 손쉽게 관통시킬 수 있어 수평 전단내력 향상을 도모할 수 있으며, 인접하는 슬래브 사이의 연속성을 강화하고 전기/배관용 설비공간으로도 활용가능하다.In addition, as shown in FIG. 4C, it is possible to form a plurality of openings 114 in the web 112 of the H-beam 110. The opening 114 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.
도 5는 본 발명에 따른 성형강판 조립 보의 제 2 실시예를 나타낸 사시도이고, 도 6a 내지 6c는 본 발명의 제 2 실시예에 따른 성형강판 조립보의 변형예들을 보여주는 단면도이다.5 is a perspective view showing a second embodiment of a molded steel sheet assembly beam according to the present invention, Figure 6a to 6c is a cross-sectional view showing a modification of the molded steel sheet assembly beam according to a second embodiment of the present invention.
상기한 실시예들에서는 하나의 성형강판(120)을 H형강(110)의 하부 플랜지(113) 하면에 접합하는 구성이었으나 성형강판(120)은 2개로 분할되어 H형강(110)의 하부 플랜지(113) 상면 또는 하면에 볼팅 또는 용접으로 접합될 수 있다.In the above embodiments, one formed steel sheet 120 is bonded to the bottom surface of the lower flange 113 of the H-shaped steel 110, but the formed steel sheet 120 is divided into two and divided into two lower flanges of the H-shaped steel 110 ( 113) may be joined by bolting or welding to the top or bottom surface.
즉, 도 5에 도시된 바와 같이, 상기 제 1 실시예에 따른 성형강판(120)을 2개로 분할하여 이들을 각각 상기 H형강(110)의 웨브(112) 양측 하부 플랜지(113) 상면에 접합(볼팅)하는 것이 가능하다.That is, as shown in FIG. 5, the molded steel sheet 120 according to the first embodiment is divided into two and bonded to the upper surfaces of the lower flanges 113 on both sides of the web 112 of the H-shaped steel 110. Bolting) is possible.
또한, 도 6a에 도시된 바와 같이, 용접으로 접합하는 것도 가능하며, 도 6b 에 도시된 바와 같이, 2개로 분할된 성형강판을 H형강(110)의 하부 플랜지(113) 양측의 하면에 접합하는 것도 가능하다.In addition, as shown in Figure 6a, it is also possible to join by welding, as shown in Figure 6b, to join the two divided molded steel plate to the lower surface of both sides of the lower flange 113 of the H-shaped steel 110 It is also possible.
한편, 도 6c에 나타낸 것처럼, 2개로 분할된 성형강판을 상기 H형강(110)의 웨브(112) 양측 하부 플랜지(113) 상면에 접합(볼팅)하는 경우 2개로 분할된 성형강판의 측면수직부(122)의 맞은편 하면부(121)의 단부로부터 수직하게 상향 절곡된 중앙수직부(124)를 더 형성하고 이 중앙수직부(124)를 상기 H형강(110)의 웨브(112)에 면접한 후 접합하는 것도 가능하다.On the other hand, as shown in Figure 6c, when joining (bolting) the two divided molded steel sheet to the upper surface of the lower flange 113 on both sides of the web 112 of the H-shaped steel 110, the side vertical portion of the divided steel sheet divided into two Further forming a central vertical portion 124 bent vertically upward from the end of the opposite lower surface portion 121 of the 122, and interviews the central vertical portion 124 to the web 112 of the H-shaped steel 110 It is also possible to join after.
도 7은 본 발명에 따른 성형강판 조립 보의 제 3 실시예를 나타낸 사시도이고, 도 8은 본 발명의 제 3 실시예에 따른 성형강판 조립 보의 변형예를 나타낸 단면도이다.7 is a perspective view showing a third embodiment of the formed steel sheet assembly beam according to the present invention, Figure 8 is a cross-sectional view showing a modification of the formed steel sheet assembly beam according to the third embodiment of the present invention.
상기한 실시예들에서는 성형강판을 H형강(110)의 하부 플랜지(113)에 접합하는 것이었으나, 상기 제 1 실시예에 따른 성형강판(120)을 2개로 분할하여 이들을 각각 상기 H형강(110)의 웨브(112) 양측에 접합하는 것도 가능하다.In the above-described embodiments, the molded steel sheet was joined to the lower flange 113 of the H-shaped steel 110, but the divided steel sheet 120 according to the first embodiment was divided into two and each of the H-shaped steel 110 was divided. It is also possible to join to both sides of the web (112).
또한, 도 8a, 8b에 도시된 바와 같이, 2개로 분할된 성형강판의 측면수직부(122)의 맞은편 하면부(121)의 단부로부터 수직하게 상향 또는 하향 절곡된 중앙수직부(124)를 더 형성하고 이 중앙수직부(124)를 상기 H형강(110)의 웨브(112)에 면접한 후 접합하는 것도 가능하다. In addition, as shown in FIGS. 8A and 8B, the central vertical portion 124 bent vertically upward or downward from an end of the opposite lower surface portion 121 of the side vertical portion 122 of the divided steel sheet is divided into two. It is also possible to form and join the central vertical portion 124 to the web 112 of the H-shaped steel 110 and then join.
이상에서 살펴본 바와 같이 본 발명에 따른 성형강판 조립 보는 H형강과 성형강판을 서로 접합하여 제작함으로써 기존의 층고절감 방식과는 달리 높이조절이 가능하고 다양한 슬래브 시스템을 적용할 수 있으며 단면형상이 기존의 H형 합성보 와 호환이 가능하기 때문에 기존 H형강을 조립 보로 사용한 기둥-보 접합방식을 별도의 변경 없이 그대로 사용할 수 있다. 또한 성형강판이 공장에서 롤포밍 또는 프레싱 등과 같은 성형기법으로 생산되기 때문에 제작시의 생산성 및 경제성이 우수하고 현장 시공시 거푸집 작업의 생략이 가능하고 접합이 비교적 간편하기 때문에 공기가 단축된다.As described above, the molded steel sheet assembly beam according to the present invention is manufactured by bonding the H-shaped steel and the molded steel sheet to each other, unlike the existing high layer reduction method, the height can be adjusted, and various slab systems can be applied. As it is compatible with H-shaped composite beams, the column-beam joining method using the existing H-shaped steel as an assembled beam can be used without any change. In addition, since the molded steel sheet is produced by a molding method such as roll forming or pressing in a factory, the productivity and economy at the time of manufacturing are excellent, and the formwork can be omitted during construction in the field, and the air is shortened because the bonding is relatively simple.
상술한 바와 같이 본 발명에 따르면, 성형강판의 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 the molded steel sheet, and the productivity is also excellent because the molded steel sheet is molded at the factory.
또한, 이를 이용한 합성보-슬래브는 충전된 콘크리트가 H형강의 웨브와 상부 플랜지를 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 material has a great adhesion performance in its cross-sectional shape because the filled concrete wraps the web and the upper flange of the H-shaped steel, and it is very inexpensive when the tensile reinforcing bar is placed underneath if necessary. It can exhibit excellent cross-sectional performance. 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 기둥-보 접합방식을 그대로 사용할 수 있기 때문에 별도의 추가 시공이나 비용부담 없이 비교적 간편하게 시공이 가능하고 매우 우수한 접합부 강성을 확보할 수 있다.In addition, since the existing H-beam column-beam joining method can be used as it is in the form of joining with the column, it is possible to construct relatively easily without additional construction or cost burden, and can secure very good joint rigidity.

Claims (14)

  1. 상부 플랜지(111), 웨브(112) 및 하부 플랜지(113)를 갖는 H형강(110)과;An H-shaped steel 110 having an upper flange 111, a web 112, and a lower flange 113;
    하면부(121), 상기 하면부(121)의 양측단으로부터 수직하게 상향 절곡된 측면수직부(122) 및 상기 측면수직부(122)의 상단에서 수평하게 절곡된 받침부(123)를 갖도록 성형된 하나의 성형강판(120)을 포함하며,Molded to have a lower surface portion 121, a side vertical portion 122 bent vertically upward from both side ends of the lower surface portion 121 and the support portion 123 horizontally bent at the upper end of the side vertical portion 122 It includes one molded steel sheet 120,
    상기 H형강(110)의 하부 플랜지(113) 하면에 상기 성형강판(120)의 하면부(121)를 접합하여 구성된 것을 특징으로 하는 성형강판 조립 보.Shaped steel sheet assembly beam, characterized in that the lower portion of the lower flange 113 of the H-shaped steel (110) by joining the lower surface portion 121 of the formed steel sheet (120).
  2. 제 1 항에 있어서,The method of claim 1,
    상기 H형강(110)은 상부 플랜지(111)와 하부 플랜지(113)의 폭이 서로 다른 비대칭 단면인 것을 특징으로 하는 성형강판 조립 보.The H-shaped steel 110 is formed steel sheet assembly beam, characterized in that the width of the upper flange 111 and the lower flange 113 are different asymmetric cross-section.
  3. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2,
    상기 H형강(110)의 웨브(112)에는 복수의 개구부(114)가 형성된 것을 특징으로 하는 성형강판 조립 보.Web 112 of the H-shaped steel 110, a plurality of openings 114 are formed, characterized in that the formed steel sheet assembly beam.
  4. 제 3 항에 있어서,The method of claim 3, wherein
    상기 성형강판(120)의 하면부(121), 측면수직부(122) 및 받침부(123)가 상기 H형강(110)의 웨브(112)를 기준으로 좌우 대칭 또는 비대칭인 것을 특징으로 하는 성형강판 조립 보.The lower surface portion 121, the side vertical portion 122 and the support portion 123 of the formed steel plate 120 is characterized in that the symmetrical or asymmetrical with respect to the web 112 of the H-shaped steel 110 Steel plate assembly beam.
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