KR20030094951A - Connection of Modified Wide-flange Steel Beam and Precast Concrete Slab and Method for Constructing Structure Using the Same - Google Patents
Connection of Modified Wide-flange Steel Beam and Precast Concrete Slab and Method for Constructing Structure Using the Same Download PDFInfo
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- KR20030094951A KR20030094951A KR1020020032420A KR20020032420A KR20030094951A KR 20030094951 A KR20030094951 A KR 20030094951A KR 1020020032420 A KR1020020032420 A KR 1020020032420A KR 20020032420 A KR20020032420 A KR 20020032420A KR 20030094951 A KR20030094951 A KR 20030094951A
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- slab
- improved
- steel
- flange
- cheolgolbo
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- 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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/023—Separate connecting devices for prefabricated floor-slabs
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- 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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
- E04B5/06—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement with beams placed against one another optionally with pointing-mortar
-
- 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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
-
- 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
- E04C2003/0413—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 being built up from several parts
-
- 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
- E04C2003/0443—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 substantial shape of the cross-section
Abstract
Description
본 발명의 개량 철골보와 PC 슬래브의 접합부 및 이를 이용하여 구조물을 축조하는 방법은 H형강 또는 I형강보(12)에 PC(precast concrete)를 접합하여 조립식 합성부재로 슬래브를 구성할 때 층고감축으로 인한 공사비절감을 목적으로 한다. 또한 이 접합부는 기존에 개발된 "층고 감축을 위한 개량 철골보"와 "롱라인법에 기초한 설비덕트를 포함하는 개량 T형 PC슬래브와 시공방법,"을 활용할 경우 보다 발전된 접합부를 형성할 수 있으며, 기존의 PCI 댑단부의 T형 PC슬래브와의 접합도 유효하게 적용할 수 있다.Joint of the improved cheolgolbo and PC slab of the present invention and a method for constructing a structure using the same by bonding the PC (precast concrete) to the H-shaped steel or I-shaped steel beam 12 to reduce the height when the slab is composed of a prefabricated composite member The purpose is to reduce construction costs. In addition, this joint can form a more advanced joint by utilizing the previously developed "Improvement Steel Beam for Reducing Floor Height" and "Renovated T-type PC Slab and Construction Method Including Equipment Duct Based on Long Line Method," Junction with T-type PC slab of existing PCI adapter end can also be effectively applied.
이 접합부는 PCI 댑단부보다 개량 댑단부를 활용할 때 더욱 유효하게 활용될 수 있다. 즉, PCI 댑단부는 전체 슬래브 깊이의 50%를 최소 니브 깊이로 규정하고 있지만, 개량 댑단부의 경우 니브의 깊이는 전체 슬래브 깊이의 25∼33%를 최소 니브깊이로 할 수 있으므로, 개량 댑단부의 니브가 중간플랜지와 상부 플랜지 삽입이 보다 용이하다. 니브가 삽입될 경우, 중간플랜지에 적용되는 모멘트 팔길이를 줄일 수 있으므로, 보다 안정된 접합부 거동을 기대할 수 있다. 아울러 니브가 삽입된 후, 상부에 타설되는 토핑콘크리트와 상부 배근은 접합부에 발생하는 과도 부모멘트에 효율적으로 대응할 수 있다.This junction can be used more effectively when utilizing the improved adapter end than the PCI adapter end. That is, the PCI pip end defines 50% of the total slab depth as the minimum nib depth. However, in the case of the improved pip end, the depth of the nib can be 25 to 33% of the total slab depth as the minimum nib depth. The nib of is easier to insert the intermediate flange and the upper flange. When the nib is inserted, the moment arm length applied to the intermediate flange can be reduced, so that more stable joint behavior can be expected. In addition, after the nib is inserted, the topping concrete and the upper reinforcement that is poured on the upper portion can efficiently cope with the excessive parental force generated in the joint portion.
본 발명은 H형강 또는 I형강보에 PC(precast concrete)를 접합하여 조립식 합성부재로 슬래브를 구성할 때 층고감축으로 인한 공사비 절감을 목적으로 한다. 또한 이 접합부는 기존에 개발된 "층고 감축을 위한 개량 철골보"와 "롱라인법에 기초한 설비덕트를 포함하는 개량 T형 PC슬래브와 시공방법,"을 활용할 경우 보다 발전된 접합부를 형성할 수 있으며, 기존의 PCI 댑단부의 T형 PC슬래브와의 접합도 유효하게 적용할 수 있다.The present invention aims to reduce the construction cost due to the floor height reduction when bonding the precast concrete (PC) to the H-beam or I-beams to form a slab with a prefabricated composite member. In addition, this joint can form a more advanced joint by utilizing the previously developed "Improvement Steel Beam for Reducing Floor Height" and "Renovated T-type PC Slab and Construction Method Including Equipment Duct Based on Long Line Method," Junction with T-type PC slab of existing PCI adapter end can also be effectively applied.
기존의 H형강보나 I형강보(12)는 상부 플랜지 위에 PC슬래브를 올려 시공하도록 되어있다. 또한 기존의 변형된 철골보(19)는 복부에 플레이트판을 용접하고, 복부 플래이트와 하부 플랜지 사이에 스티프너(20)를 보강하는 형태로 이루어져 있다. 이는 복부 플레이트판과 스티프너의 용접작업이 반드시 필요하므로 제작성 및 생산성에 큰 단점이 있다. 아울러, 기존의 변형된 철골보(19)와 PC슬래브와의 접합부에서는 스티프너로 인한 국부응력이 발생할 수 있으며 복부의 플레이트 판의 길이가 길어지게 되어 복부의 비틀림이 발생할 수 있다.Conventional H-beams or I-beams (12) is to be constructed by lifting the PC slab on the upper flange. In addition, the existing deformed cheolgolbo 19 is made of a shape that reinforces the stiffener 20 between the abdomen plate and the lower flange to weld the plate plate to the abdomen. This requires a welding operation of the abdominal plate plate and the stiffener is a major disadvantage in manufacturability and productivity. In addition, in the junction of the conventional deformed cheolgolbo 19 and the PC slab may be a local stress due to the stiffeners and the length of the abdominal plate plate may be long, which may cause torsion of the abdomen.
본 발명은 PC슬래브를 지지하는 보는 개량 철골보(9)로서 기존의 H형강 또는 I형강보(7)의 중간부분에 하나 또는 두 개의 부등형 L형 앵글(8)을 볼트나 용접을 통해 접합시켜 PC슬래브의 댑단부가 부등형 L형 앵글에 올려지는 형태로 구성된다. 또한 PC슬래브의 높이에 따라 L형 앵글의 높이를 자유롭게 조절할 수 있어 다양한 T형보 니브(nib)의 깊이 철골보 깊이에 따라 층고감축을 위하여 보다 효율적으로대응할 수 있으며 철골보와 콘크리트 슬래브의 합성 일체화 거동에도 뛰어난 구조성능을 발휘할 수 있는 형태이다. 따라서 철골보와 콘크리트 슬래브의 합성 일체화 거동에 대한 기술적 고려와 PC슬래브의 상부 플랜지에 타설되는 토핑 콘크리트로 인한 슬래브 연속화에 대한 기술적 고려가 필요하다.The present invention is a modified steel beam (9) for supporting the PC slab by joining one or two uneven L-shaped angle (8) in the middle of the existing H-beam or I-beam (7) by bolt or welding The adapter end of the PC slab is mounted on an inequality L-shaped angle. In addition, the height of the L-shaped angle can be adjusted freely according to the height of the PC slab, so it can respond more efficiently for the reduction of the layer height according to the depth of the various T-beam nibs and the depth of the steel golbo. It is a form that can exhibit structural performance. Therefore, technical considerations on the composite integration behavior of steel slabs and concrete slabs and slab continuity due to the topping concrete cast on the upper flange of PC slabs are needed.
도 1A는 종래의 PC 슬래브(1)의 사시도이다.1A is a perspective view of a conventional PC slab 1.
도 1B는 좌측은 중공슬래브의 댑단부(6)와 기존의 H형강 또는 I형강보(12)와의 접합부 입면도이며 우측은 종래의 PC 슬래브의 댑단부(4)와 기존의 H형강 또는 I형강보(12)와의 접합부 입면도이다.Fig. 1B is a left side elevation view of a joint end 6 of a hollow slab and a conventional H-beam or I-shaped steel beam 12, and the right side shows a adapter end 4 of a conventional PC slab and a conventional H-beam or I-shaped steel beam. It is an elevation view of the junction part with (12).
도 1C는 좌측은 중공슬래브의 댑단부(6)와 기존의 변형된 철골보(19)와의 접합부 입면도이며 우측은 종래의 PC 슬래브의 댑단부(4)와 기존의 변형된 철골보(19)와의 접합부 입면도이다.1C is a left side elevation view of a joint end 6 of a hollow slab and a conventional modified cheolgolbo 19, and a right side elevation view of a joint end of a conventional PC slab with a adapter end 4 of a conventional slab. to be.
도 2는 개량 철골보(9)의 사시도이다.2 is a perspective view of the improved cheolgolbo (9).
도 3A는 본 발명의 기존 PCI T형 PC 슬래브의 댑단부와 개량 철골보(9)와의 접합부의 입면도이다.3A is an elevational view of the junction of the adapter end of an existing PCI T-type PC slab of the present invention and an improved cheolgolbo 9.
도 3B는 본 발명의 중공 슬래브의 댑단부와 개량 철골보(9)와의 접합부 입면도이다.Fig. 3B is an elevation view of the joint between the end of the hollow slab of the present invention and the improved steel ball 9.
도 3C는 본 발명의 설비덕트를 포함한 개량T형 PC 슬래브의 댑단부(4)와 개량 철골보(9)와의 접합부의 입면도이다.Fig. 3C is an elevation view of the junction of the adapter end 4 and the improved steel ball 9 of the improved T-type PC slab including the facility duct of the present invention.
도 4A부터 도 4D는 본 발명의 "개량 철골보와 PC 슬래브의 접합부 및 이를 이용하여 구조물을 축조하는 방법"의 구성도 이다.4A to 4D are configuration diagrams of the "junction of an improved cheolgolbo and PC slab and a method of constructing a structure using the same".
＜도면의 부호에 대한 간단한 설명＞<Brief description of the symbols in the drawings>
1: 종래의 PC 슬래브1: conventional PC slab
2: 종래의 PC 슬래브의 플랜지2: flange of conventional PC slab
3: 종래의 PC 슬래브의 복부(Web)3: Abdomen (Web) of conventional PC slab
4: 종래의 PC 슬래브의 댑단부4: Adapter end of conventional PC slab
5: 중공 슬래브5: hollow slab
6: 중공 슬래브의 댑단부6: end of hollow slab
7: H형강 또는 I형강보7: H-beam or I-beam
8: 부등형 L형 앵글8: inequality L type angle
9: 개량 철골보9: improved steel ball
10: 철골 기둥10: steel column
11: 토핑 콘크리트11: topping concrete
12: 기존의 H형강 또는 I형강보12: Conventional H-beam or I-beam
13: PC 슬래브를 가로지르는 덕트 설비 공간13: Duct fitting space across PC slab
14: PC 슬래브에 평행한 덕트 설비 공간14: Duct fixture space parallel to PC slab
15: 기존 PCI T형 PC 슬래브의 플랜지15: Flange of existing PCI T-type PC slab
16: 기존 PCI T형 PC 슬래브의 복부16: Abdomen of existing PCI T-type PC slab
17: 기존 PCI T형 PC 슬래브의 댑단부17: Adapter end of existing PCI T-type PC slab
18: PS 강선18: PS liner
19: 기존의 변형된 철골보19: Traditional deformed steel ball
20: 스티프너20: Stiffener
도면에 따라 본 발명을 설명한다.The present invention will be described with reference to the drawings.
도2는 개량 철골보의 구체적인 사시도이다.2 is a detailed perspective view of the improved cheolgolbo.
도3A는 기존 PCI T형 PC 슬래브의 댑단부(17)와 본 발명의 개량 철골보(9)와의 접합부의 입면도이다.Fig. 3A is an elevation view of the junction of the adapter end 17 of the existing PCI T-type PC slab with the improved steel ball 9 of the present invention.
도3B는 중공 슬래브의 댑단부(6)와 본 발명의 개량 철골보(9)와의 접합부 입면도이다.Fig. 3B is an elevation view of the joint between the end 6 of the hollow slab and the improved steel ball 9 of the present invention.
도3C는 설비덕트를 포함한 개량T형 PC 슬래브의 댑단부(4)와 본 발명의 개량 철골보(9)와의 접합부의 입면도이며 이를 기준으로 "개량 철골보와 PC 슬래브의 접합부 및 이를 이용하여 구조물을 축조하는 방법"을 설명한다.Fig. 3C is an elevation view of the junction of the adapter end 4 of the improved T-type PC slab including the facility duct and the improved steel beam 9 of the present invention. How to ".
PC 슬래브의 댑단부(4, 6, 17)가 개량 철골보의 부등형 L형 앵글(8)의 플랜지에 올려지는 형상이다. 개량 철골보(9)는 기존의 H형강, I형강보(7)에 부등형 L형 앵글(8)를 용접이나 볼트 접합을 통해 일체화시킨 형태로서 개량 댑단부의 니브가 중간플랜지와 상부 플랜지 삽입이 삽입될 경우, 중간플랜지에 적용되는 모멘트 팔길이를 줄일 수 있으므로, 보다 안정된 접합부 거동을 기대할 수 있다. 또한 국부하중이 부등형 L형 앵글의 상부 플랜지에 작용되지 않고 바로 복부로 전달되어수직 압축력으로 작용하기 때문에 부등형 L형 앵글의 플랜지의 처짐을 스티프너의 보강을 하지 않고도 충분히 저항할 수 있다.The end portions 4, 6 and 17 of the PC slab are shaped to be mounted on the flange of the uneven L-shaped angle 8 of the improved steel beam. The improved cheolgolbo (9) is formed by integrating an inequality L-shaped angle (8) into the existing H-beams and I-beams (7) by welding or bolting. When inserted, since the moment arm length applied to the intermediate flange can be reduced, more stable joint behavior can be expected. In addition, since the local load is not applied to the upper flange of the inferior L angle, it is directly transmitted to the abdomen and acts as a vertical compression force, so that the deflection of the flange of the inferior L angle can be sufficiently resisted without reinforcing the stiffener.
개량 철골보 위에 PC 슬래브가 올려진 후 무수축 모르타르(11)를 길이방향으로 타설 후 설치한다.After the PC slab is mounted on the improved cheolgolbo is installed after placing the non-shrink mortar (11) in the longitudinal direction.
도4A에서 도4D는 본 발명의 "개량 철골보와 PC 슬래브의 접합부 및 이를 이용하여 구조물을 축조하는 방법"의 구성도이다.4A is a schematic view of the "joint of the improved cheolgolbo and PC slab and a method of constructing a structure using the same" of the present invention.
도4A는 지하 또는 지상의 기초 또는 바닥판 위에 공장에서 제작된 다수개의 철골 기둥(10)을 크레인을 이용하여 기초판 위에 볼트 등을 이용하여 수직으로 세우는 단계이다.4A is a step of vertically erecting a plurality of steel pillars 10 manufactured at a factory on a base or bottom plate of a basement or ground by using a bolt or the like on a base plate using a crane.
도4B는 상기 다수개의 철골 기둥(10)의 상부 면 또는 기둥의 코오벨부에 철골 기둥(10)과 직각으로, 공장에서 제작된 다수개의 본발명의 개량 철골보를 설치하는 단계이다. 상기 개량 철골보(9) 상부에는 상부 콘크리트와의 결합을 위하여 전단연결재가 형성될 수 있다.Figure 4B is a step of installing a plurality of improved cheolgolbo of the present invention produced at the factory at a right angle to the steel pole 10, the top surface of the plurality of steel pillars 10 or the cobel portion of the pillar. Shear connector may be formed on the upper side of the improved cheolgolbo (9) for coupling with the upper concrete.
도4C는 상기 다수개의 개량 철골보(9)와 개량 철골보 사이에 다수개의 PC 슬래브를 크레인을 이용해서 연속하여 설치하는 단계이다. 본 발명의 개량 철골보의 부등형 L형 앵글의 플랜지에 PC 슬래브의 댑단부(4,6)이 결합된다.4C is a step of continuously installing a plurality of PC slabs by using a crane between the plurality of improved cheolgolbo 9 and the improved cheolgolbo. The end portions 4 and 6 of the PC slab are coupled to the flange of the uneven L-angle of the improved steel ball of the present invention.
도4D는 상기 다수개의 철골 기둥(10), 본 발명의 개량 철골보(9) 및 PC 슬래브 상부에 용접철망 또는 상부 인장근을 배근한 후 현장 타설 콘크리트(11)에 의하여 일체화되는 단계이다.4D is a step in which the plurality of steel pillars 10, the improved steel beams 9 of the present invention, and the PC steel slab are arranged by placing a welded wire mesh or an upper tension bar on the top of the slab and then integrating it with the site-pouring concrete 11.
최근의 빌딩 건설은 환경 친화적이면서도 고강도인 철골 프래임과 PC 슬래브를 시공하여 습식 전단벽을 필요로 하지 않는 완전한 건식 시공쪽으로 유도되고 있다.Recent building construction has led to a complete dry construction that does not require wet shear walls by constructing environmentally friendly, high strength steel frames and PC slabs.
기존의 PC 슬래브의 보 부재로서 사용된 PC보, 기존의 철골보는 층고 증대, PC 보를 사용함으로써 적용되는 습식 전단벽, 공기지연 등의 문제점을 안고 있다. 개량 철골보는 기존 철골보(12)에서 처럼 상부 플랜지 위에 슬래브의 댑단부가 올려지는 것이 아닌 복부 중간에 부등형 L형 앵글의 상부 플랜지 위에 올려짐으로 층고감축 등을 기대할 수 있으며 보, 기둥의 철골 프래임화를 통해 습식전단벽을 사용하지 않고 브레이스 등을 통한 완전한 건식시공을 실현할 수 있다. 또한 PC 보 부재보다 큰 강도를 얻을 수 있어 고하중, 장스팬에 적합한 PC 슬래브 부재와 매우 적합한 합성 작용을 할 수 있는 시스템이다.PC beam used as the beam member of the existing PC slab, conventional steel cheolgolbo has problems such as increase in the height of the floor, wet shear wall applied by using the PC beam, air delay. Improved steel beams can be expected to reduce floor height by placing them on the upper flange of the inequality L-shaped angle in the middle of the abdomen, rather than the lap end of the slab on the upper flange as in the conventional steel beams (12). Through this, it is possible to realize complete dry construction through braces without using wet shear walls. In addition, it is possible to obtain greater strength than the PC beam member, and it is a system that can perform a very suitable compounding action with a PC slab member suitable for high load and long span.
Claims (4)
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| KR20030094950A (en) * | 2002-06-10 | 2003-12-18 | 유승룡 | Modified Wide-flange Steel Beam for Reduction of Story Height |
| KR100736752B1 (en) * | 2006-05-18 | 2007-07-09 | 삼성중공업 주식회사 | Connection structure of i-slabs and asymmetric slimflor beam |
| KR100829223B1 (en) * | 2006-12-22 | 2008-05-14 | 재단법인 포항산업과학연구원 | Mixed structural building for reducing the story height and vertical flexibility |
| CN108643051A (en) * | 2018-05-30 | 2018-10-12 | 浙江交工集团股份有限公司 | A kind of steel construction pedestal for the automatic dabbing of prefabricated bent cap |
| CN110629915A (en) * | 2019-09-06 | 2019-12-31 | 浙江旷厦建设有限公司 | Mounting structure and mounting method of prefabricated floor slab |
| CN111441520A (en) * | 2020-04-10 | 2020-07-24 | 中国五冶集团有限公司 | Steel structure support-free full-precast concrete floor connecting joint and connecting method |
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| CN108643051B (en) * | 2018-05-30 | 2023-11-03 | 浙江交工集团股份有限公司 | Steel structure pedestal for automatic roughening of prefabricated bent cap |
| CN110629915A (en) * | 2019-09-06 | 2019-12-31 | 浙江旷厦建设有限公司 | Mounting structure and mounting method of prefabricated floor slab |
| CN111441520A (en) * | 2020-04-10 | 2020-07-24 | 中国五冶集团有限公司 | Steel structure support-free full-precast concrete floor connecting joint and connecting method |
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