KR20130035355A - Pc slab with spiral type shear reinforcement device - Google Patents

Pc slab with spiral type shear reinforcement device Download PDF

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KR20130035355A
KR20130035355A KR1020110099587A KR20110099587A KR20130035355A KR 20130035355 A KR20130035355 A KR 20130035355A KR 1020110099587 A KR1020110099587 A KR 1020110099587A KR 20110099587 A KR20110099587 A KR 20110099587A KR 20130035355 A KR20130035355 A KR 20130035355A
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South Korea
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spiral
root
slab
longitudinal direction
shear reinforcement
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KR1020110099587A
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Korean (ko)
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이종민
류승일
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(주)연우피씨엔지니어링
주식회사 옥타곤엔지니어링
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Priority to KR1020110099587A priority Critical patent/KR20130035355A/en
Publication of KR20130035355A publication Critical patent/KR20130035355A/en

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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
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
    • E04C5/0618—Closed cages with spiral- or coil-shaped stirrup rod
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

PURPOSE: A PC(Prestressed Concrete) slab with an earthquake-proof shear reinforcing unit is provided to improve the resistance capacity to an earthquake load in a longitudinal direction of a support rib during an earthquake and improve workability. CONSTITUTION: A plurality of support ribs(20) is arranged on one surface side of a long span panel(10) at equidistant intervals, and a spiral shear reinforcing unit(100) is embedded into the support ribs. The spiral shear reinforcing unit comprises a spiral bar(110), an upper bar(120), a lower bar(130), and a plurality of support legs(140). The upper bar is arranged to an upper part of one surface side of the spiral bar along a longitudinal direction of the spiral bar. The lower bar is arranged to a lower part of the other surface side of the spiral bar along the longitudinal direction of the spiral bar. The support legs are connected to a lower one side and the other side of the spiral bar. [Reference numerals] (AA) Binding force of concrete increases relative to a spiral bar;

Description

내진용 전단보강체를 갖는 건축물용 피씨 슬래브{PC slab with Spiral type shear reinforcement device}Building PC slab with seismic shear reinforcement {PC slab with Spiral type shear reinforcement device}

본 발명은 특허등록 제10-0976184호의 나선형 스트럽 구조인 전단보강체를 이용한 발명으로서, 보다 자세하게는 지하주차장을 포함한 공공시설물 또는 공공주택 등의 건축물을 시공하기 위한 피씨 슬래브에 있어서, 상기 피씨 슬래브는 패널 상부 또는 하부 일측에 다수개의 지지리브가 형성되되, 상기 지지리브의 내부에는 나선형 전단보강체가 매립되어 지진 발생시 지지리브의 길이방향에 대한 지진하중의 저항능력을 크게 개선함은 물론 상기 전단보강체는 슬래브의 피씨(PC)화를 위한 콘크리트 몰딩시 전단보강체의 지지다리를 통해 간단한 세우기 작업이 가능하여 종전 매립근 대비 작업 시공성이 향상되고, 특히 전단보강체는 나선형 구조에 의하여 지지리브로서 타설 양생되는 콘크리트의 중앙 결집력, 응집력이 확보됨으로써, 직하방향의 하중에 대한 저항 능력 및 지진 하중에 대한 저항력의 상승으로 인해 철근 배근 등의 부자재가 감소되어 건축 시공에 따른 원가 경쟁력이 개선되는 것을 특징으로 하는 내진용 전단보강체를 갖는 건축물용 피씨 슬래브에 관한 것이다.
The present invention is a invention using a shear reinforcing body of the spiral stirrup structure of Patent Registration No. 10-0976184, more specifically in the PC slab for constructing a building, such as public facilities or public housing including an underground parking lot, A plurality of support ribs are formed on one side of the upper or lower panel, and a spiral shear reinforcement is embedded in the support ribs to greatly improve the resistance of the earthquake load to the longitudinal direction of the support ribs during an earthquake, as well as the shear reinforcement. When the concrete molding for slab PC is made, the simple reinforcement work is possible through the supporting legs of the shear reinforcement, which improves the workability compared to the conventional landfill. In particular, the shear reinforcement is cast as supporting ribs by the spiral structure. The central cohesion force and cohesive force of the cured concrete are secured, so that The present invention relates to a PC slab having a seismic shear reinforcing body, which is characterized in that the subsidiary materials, such as reinforcing bars, are reduced due to the increase in resistance to seismic loads and the resistance to seismic loads.

일반적으로 지하주차장, 물류창고와 같은 대형 공공시설 등의 건축물을 시공하는 경우에는 많은 하중이 요구되므로, 하프슬래브(Half PC Slab)를 이용한 PRC(Precast Reinforced Concrete Layer Construction Method) 복합화 공법 등이 실시되고 있다.In general, when constructing a building such as an underground parking lot or a large public facility such as a warehouse, a lot of loads are required. Therefore, a PRC (Precast Reinforced Concrete Layer Construction Method) complex method using half PC slab is implemented. have.

즉, 이러한 PRC 복합화 공법은 철근 콘크리트 라멘(Rahmen) 구조의 건물을 PC(Precast Concrete)화하는 공법으로서, 공장에서 제작한 PC기둥, PC보, 하프슬래브 등 PC부재를 현장으로 운송, 양중하여 조립한 후 부재 간 접합부와 하프슬래브의 상부에 덧침콘크리트를 현장에서 타설하여 구조체를 일체화시키도록 형성된다.In other words, the PRC composite method is a method of converting reinforced concrete ramen (PC) into a precast concrete (PC) structure. It is then formed on the site of the joint between the member and the top of the half slab, the cast concrete in the field is formed to integrate the structure.

한편, 지하주차장 또는 물류창고와 같은 건축물에 대한 시공(건설)의 경우 최근에는 차량의 크기가 증가되어 넉넉한 주차공간 확보가 요구됨으로써 긴 경간(장스팬)이 요구되고, 이에 대공간 건물을 시공시에는 일반적으로 스팬이 7.6 X 8.1 m, 8.0 X 8.0 m 또는 8.1 X 10.2 m 또는 그 이상의 스팬이 요구되어, PRC 복합화 공법은 슬래브가 짧게 설계되어 1방향으로 시공이 부적합하기 때문에 2방향으로 시공하고 있는 실정이다.On the other hand, in the case of construction (construction) for buildings such as underground parking lots or distribution warehouses, the size of vehicles has recently increased, requiring sufficient parking spaces, requiring long spans (long spans). In general, a span of 7.6 X 8.1 m, 8.0 X 8.0 m, or 8.1 X 10.2 m or more is required, and the PRC compounding method is constructed in two directions because the slab is designed to be short and construction is not suitable in one direction. It is true.

그러나, 2방향으로 시공하게 되면 소요되는 구조부재인 PC단순보 및 PC거더가 증가되어 타 공법 대비 경쟁력이 낮아지며, 억지로 1방향 시공을 하려하면 슬래브의 두께 및 철근량이 증가되어 공사비 증대가 초래되며, 장스팬(6m 초과)의 경우 구조역학상, 안전상 문제로 추가적인 지지보를 설치해야 하므로 추가적인 단가 상승 및 층고가 줄어들어 시공을 기피하는 문제점이 발생되었다.However, the construction in two directions increases the PC simple beams and PC girders, which are required structural elements, which leads to a lower competitiveness than other construction methods. In the case of long span (more than 6m), additional support should be installed due to structural problems and safety reasons. Therefore, additional unit price increase and floor height were reduced, thereby avoiding construction.

이러한 문제를 해결하기 위해 종전에는 더블티 슬래브공법을 이용하고 있으나, DTS 공법이라고도 하는 더블티 슬래브는 바닥판에 깊은 보강리브를 설치하고 상기 보강리브의 하부에 스트랜드를 삽입하여 인장력을 가한 뒤 일체의 부재를 이루도록 형성하는 바, 이러한 더블티 슬래브는 스트랜드의 인장력으로 인해 더블티 슬래브의 몸판 중앙부가 소폭 치켜올려지도록 형성되어 약 10m 이상의 장스팬으로 지상층 구조물에 주로 적용되고 있다.Conventionally, the double tee slab method has been used to solve this problem, but the double tee slab, also known as the DTS method, installs a deep reinforcing rib on the bottom plate and inserts a strand into the lower part of the reinforcing rib to apply tension. The double tee slab is formed to form a member so that the central portion of the body plate of the double tee slab is slightly raised due to the tensile force of the strand, and is mainly applied to the ground layer structure with a long span of about 10 m or more.

그러나, 상술한 더블티 슬래브는 통상 보강을 위해 지지리브 내에 다수개의 매립 연결근을 심어 상부를 절곡시킨 후 덧침 콘크리트에 의해 지하층 또는 지상층의 천정부를 형성하도록 하고 있으나, 이러한 매립 연결근은 공장에서 피씨 슬래브를 제작시 작업자가 수작업으로 일일이 설정된 간격에 맞춰 끼워 넣어야 하는 바, 번거로운 작업에 의해 인건비의 상승과 작업성의 저하 결국 공기 지연으로 연결되는 문제가 발생되고 있다.However, the above-mentioned double tee slab is usually bent in the upper part by planting a plurality of buried connection roots in the support ribs for reinforcement to form a ceiling of the basement or ground layer by the overlay concrete, but such a landfill connecting rod is installed in the factory When the slab is manufactured, the worker has to manually insert it at set intervals manually, causing labor costs to increase and lower workability due to cumbersome work, which leads to air delay.

다시 말해, 종래의 피씨슬래브는 패널로부터 하부로 돌출된 지지리브에 피씨 양생과정에서 다수개의 전단보강근, 와이어 메쉬, 트러스근을 매립하도록 하는 바, 이러한 다수의 근들은 몰드에 미리 고정시켜 놓아야만 콘크리트 타설 후 일체로 피씨슬래브의 구성이 되어 현장에서 별도의 연결근과 결합되도록 형성되어 왔다.In other words, the conventional PC slab embeds a plurality of shear reinforcing bars, wire mesh, and truss bars in the PC curing process on the support ribs protruding downward from the panel. After casting, the PC slab was formed to be integrally formed with a separate connecting muscle in the field.

그러나, 상기 다수의 근들은 몰드에 고정시키기 위해 별도의 지지 고정부재가 필수적으로 요구되어 작업상 시공상 번거로움과 원가 상승 및 생산성 저하를 불러 일으키는 원인이 되고 있다.However, the plurality of muscles are required to require a separate support fixing member to secure to the mold, causing a hassle in the construction work, cost increase and productivity decrease.

또한, 종래의 근들은 지지리브를 포함한 피씨슬래브의 단순 보강을 위해 매립되는 것에 불과하나 최근 지진 발생에 따른 내진 설계가 반영된 피씨슬래브의 출시가 당업계로 하여금 요구되고 있는 실정이다.
In addition, the conventional roots are only buried for the simple reinforcement of the PC slab including the support ribs, but the situation is currently required by the industry to release the PC slab reflecting the seismic design due to the earthquake.

본 발명은 상술한 문제점을 해결하기 위한 것으로, 그 기술적 요지는 지하주차장을 포함한 공공시설물 또는 공공주택 등의 건축물을 시공하기 위한 피씨 슬래브에 있어서, 상기 피씨 슬래브는 패널 상부 또는 하부 일측에 다수개의 지지리브가 형성되되, 상기 지지리브의 내부에는 나선형 전단보강체가 매립되어 지진 발생시 지지리브의 길이방향에 대한 지진하중의 저항능력을 크게 개선함은 물론 상기 전단보강체는 슬래브의 피씨(PC)화를 위한 콘크리트 몰딩시 전단보강체의 지지다리를 통해 간단한 세우기 작업이 가능하여 종전 매립근 대비 작업 시공성이 향상되고, 특히 전단보강체는 나선형 구조에 의하여 지지리브로서 타설 양생되는 콘크리트의 중앙 결집력, 응집력이 확보됨으로써, 직하방향의 하중에 대한 저항 능력 및 지진 하중에 대한 저항력의 상승으로 인해 철근 배근 등의 부자재가 감소되어 건축 시공에 따른 원가 경쟁력이 개선되는 것을 특징으로 하는 내진용 전단보강체를 갖는 건축물용 피씨 슬래브를 제공함에 그 목적이 있다.
The present invention is to solve the above-described problems, the technical gist of the slab for constructing a building, such as public facilities or public housing including an underground parking lot, the PC slab is a plurality of supports on one side of the upper or lower panel A rib is formed, and a spiral shear reinforcement is embedded in the support rib to greatly improve the resistance of the earthquake load in the longitudinal direction of the support rib during an earthquake, as well as the shear reinforcement for PC formation of the slab. When concrete molding, simple construction is possible through the supporting legs of the shear reinforcement, which improves the workability compared to the previous reinforcement, and in particular, the shear reinforcement secures the central cohesion and cohesion of concrete that is cured as supporting ribs by the spiral structure. Thus, the resistance against direct load and low seismic load Is due to the increase of the force reduces the auxiliary, such as reinforcement it is an object to provide a precast concrete slabs for buildings having a shear reinforcement member seismic characterized in that the improvement in cost competitiveness according to the building construction.

이러한 목적을 달성하기 위해 본 발명은 장스팬 패널(10)의 일측 면상에 다수개의 지지리브(20)가 폭방향으로 등간격 배열되는 건축물 시공용 피씨 슬래브에 있어서, 상기 지지리브(20)의 내부에는 피씨(PC) 양생시 나선형 전단보강체(100)가 매립되도록 형성되되, 상기 나선형 전단보강체(100)는 길이방향을 따라 나선으로 굽어지는 것으로, 너비보다 높이가 크면서 너비방향으로 원호(原戶)를 그리는 장방형(長方形) 타원 나선으로 형성된 나선근(110)과, 상기 나선근(110)의 길이방향을 따라 나선근(110)의 일 측면 상부에 내접하게 배치되어 접합된 1본의 상부근(120)과, 상기 나선근(110)의 길이방향을 따라 나선근(110)의 타 측면 하부에 내접하게 배치되어 접합된 1본의 하부근(130)과, 상기 나선근의 하부 일측 및 타측에 결합되는 복수 이상의 지지다리(140)가 결합되어 피씨(PC) 몰딩시 작업 시공성은 개선되고, 지진 발생시 길이방향에 대한 지진하중의 저항 능력은 크게 확보되도록 구성된다.In order to achieve the above object, the present invention provides a PC construction slab for building construction in which a plurality of support ribs 20 are arranged at equal intervals in a width direction on one side of the long span panel 10, and the inside of the support ribs 20 is provided. In the PC curing, the spiral shear reinforcement 100 is formed so as to be buried, the spiral shear reinforcement 100 is bent in a spiral along the longitudinal direction, the width is greater than the width of the circular arc ( A spiral root 110 formed of a rectangular elliptic spiral that draws a root and an inwardly arranged upper portion of one side of the spiral root 110 along the longitudinal direction of the spiral root 110. The upper root 120, one lower root 130 and the lower one side of the spiral root which is disposed indirectly in the lower side of the other side of the spiral root 110 along the longitudinal direction of the spiral root 110, And a plurality of support legs 140 coupled to the other side are coupled to each other. Control PC (PC) during the molding operation the workability is improved, earthquake resistance capability of the seismic load on the case of the longitudinal direction is configured to be secured largely.

이때, 상기 나선형 전단보강체(100)는 지지리브(20)에 매립시 나선근(110)의 상부측 호형 선단(150)이 패널(10)의 상부면에 돌출되어 별도의 연결근과 결속되도록 하는 것이 바람직하다.
At this time, the helical shear reinforcement 100 is to be buried in the support rib 20 so that the upper arc-shaped tip 150 of the spiral root 110 protrudes to the upper surface of the panel 10 to bind with a separate connecting muscle It is desirable to.

이와 같이 본 발명의 피씨 슬래브는 패널 상부 또는 하부 일측에 다수개의 지지리브가 형성되되, 상기 지지리브의 내부에는 나선형 전단보강체가 매립되어 지진 발생시 지지리브의 길이방향에 대한 지진하중의 저항능력을 크게 개선함은 물론 상기 전단보강체는 슬래브의 피씨(PC)화를 위한 콘크리트 몰딩시 전단보강체의 지지다리를 통해 간단한 세우기 작업이 가능하여 종전 매립근 대비 작업 시공성이 향상되고, 특히 전단보강체는 나선형 구조에 의하여 지지리브로서 타설 양생되는 콘크리트의 중앙 결집력, 응집력이 확보됨으로써, 직하방향의 하중에 대한 저항 능력 및 지진 하중에 대한 저항력의 상승으로 인해 철근 배근 등의 부자재가 감소되어 건축 시공에 따른 원가 경쟁력이 개선되는 효과가 있다.
As described above, the PC slab has a plurality of support ribs formed at one side of the upper or lower panel, and a spiral shear reinforcement is embedded in the support ribs to greatly improve the resistance of the earthquake load to the longitudinal direction of the support ribs during an earthquake. Of course, the shear reinforcement can be easily erected through the support leg of the shear reinforcement when concrete molding for slab PC (PC) to improve the workability compared to the conventional landfill, especially the shear reinforcement is spiral By securing the central cohesion and cohesive force of concrete which is cured as supporting ribs by the structure, the subsidiary materials such as reinforcing bars are reduced due to the increase of the resistance against direct load and the resistance against earthquake load. The competitiveness is improved.

도 1은 본 발명에 따른 내진용 전단보강체를 갖는 건축물용 피씨 슬래브의 개략적 사시도,
도 2는 도 1의 A-A선 단면도,
도 3은 도 1의 측단면도,
도 4는 본 발명에 따른 내진용 전단보강체를 갖는 건축물용 피씨 슬래브의 제작 과정을 나타낸 공정 예시도,
도 5는 본 발명에 따른 내진용 전단보강체의 확대사시도,
도 6은 본 발명에 따른 내진용 전단보강체가 적용된 다양한 슬래브를 나타낸 예시도이다.1 is a schematic perspective view of a building PC slab having a seismic shear reinforcing body according to the present invention,
2 is a sectional view taken along the line AA in Fig. 1,
3 is a side sectional view of Fig. 1,
Figure 4 is an exemplary process showing a manufacturing process of the building PC slab having a seismic shear reinforcing body according to the present invention,
5 is an enlarged perspective view of the seismic shear reinforcing body according to the present invention,
6 is an exemplary view showing a variety of slabs to which the seismic shear reinforcing body is applied according to the present invention.

다음은 첨부된 도면을 참조하며 본 발명을 보다 상세히 설명하겠다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

본 발명은 도 1 내지 도 6에 도시된 바와 같이, 내진 설계가 반영된 건축물 시공용 피씨 슬래브에 관한 것으로, 그 기본 구성은 장스팬 패널(10)의 일측 면상에 다수개의 지지리브(20)가 폭방향으로 등간격 배열되어 리브드 슬래브를 이루도록 형성된다.The present invention relates to a PC slab for building construction reflecting the seismic design, as shown in Figures 1 to 6, the basic configuration of the width of the plurality of support ribs 20 on one side of the long span panel 10 It is formed to be equally spaced in the direction to form a ribbed slab.

이때, 상기 지지리브(20)의 내부에는 도 2에 도시된 바와 같이, 피씨(PC) 양생시 나선형 전단보강체(100)가 매립되도록 형성되는데, 상기 나선형 전단보강체(100)는 길이방향을 따라 나선으로 굽어지는 것으로, 너비보다 높이가 크면서 너비방향으로 원호(原戶)를 그리는 장방형(長方形) 타원 나선으로 형성된 나선근(110)과, 상기 나선근(110)의 길이방향을 따라 나선근(110)의 일 측면 상부에 내접하게 배치되어 접합된 1본의 상부근(120)과, 상기 나선근(110)의 길이방향을 따라 나선근(110)의 타 측면 하부에 내접하게 배치되어 접합된 1본의 하부근(130)과, 상기 나선근의 하부 일측 및 타측에 결합되는 복수 이상의 지지다리(140)가 결합되어 피씨(PC) 몰딩시 작업 시공성은 개선되고, 지진 발생시 길이방향에 대한 지진하중의 저항 능력은 크게 확보되도록 구성된다.At this time, as shown in Figure 2, the support rib 20 is formed to bury the spiral shear reinforcement 100 during PC curing (PC), the spiral shear reinforcement 100 is a longitudinal direction It is bent along the spiral, helix root 110 formed of a rectangular elliptic helix that is larger than the width and draws an arc in the width direction, and the spiral along the longitudinal direction of the helix root 110. It is inscribed in one upper side of the root 110 and inscribed in one upper root 120 and inscribed in the lower side of the other side of the spiral root 110 along the longitudinal direction of the spiral root 110 Combined one lower root 130 and a plurality of support legs 140 coupled to the lower one side and the other side of the spiral muscle is coupled to improve the workability during PC molding, and in the longitudinal direction when an earthquake occurs The ability to resist earthquake loads is constructed to ensure a high level.

즉, 상기 전단보강체는 나선형 스트럽 구조로 인하여 마치 스프링과 같은 텐션체 역할로서, 지진 발생시 지지리브를 포함한 피씨슬래브의 길이방향 지진하중에 대하여 저항 능력을 확보하도록 하기 위함이다.That is, the shear reinforcing body acts as a tension body like a spring due to the helical stirrup structure, so as to ensure resistance to the longitudinal seismic load of the PC slab including the support ribs during an earthquake.

다시 말해 본 발명의 슬래브는 도 6에 도시된 바와 같이, 더블티 슬래브, 멀티슬래브, 트리플 티 슬래브, 역리브드 슬래브 등과 같이 지지리브가 형성된 모든 리브드 슬래브의 총칭으로서, 상기 전단보강체가 지지리브 내에 매립되도록 하는 것이 주된 기술 요지이다.In other words, the slab of the present invention is a generic term for all ribbed slabs in which support ribs are formed, such as double tee slabs, multi slabs, triple tee slabs, reverse ribbed slabs, and the like, as shown in FIG. Landfilling is the main technical subject.

이때, 상기 나선형 전단보강체(100)는 지지리브(20)에 매립시 나선근(110)의 상부측 호형 선단(150)이 패널(10)의 상부면에 돌출되어 별도의 연결근과 결속되도록 하는 것이 바람직하다.At this time, the helical shear reinforcement 100 is to be buried in the support rib 20 so that the upper arc-shaped tip 150 of the spiral root 110 protrudes to the upper surface of the panel 10 to bind with a separate connecting muscle It is desirable to.

한편, 상기 나선근(110)은 원호의 내부 직경(D)이 나선근(110) 직경(d)의 4배로 가공하는 것(D=4d)이 바람직한데, 이는 나선근(110)의 너비를 최소화하면서 나선근(110)의 안정적인 굽힘 가공을 유도할 수 있기 때문이다.
On the other hand, the spiral root 110 is preferably processed to the inner diameter (D) of the circular arc four times the diameter (d) of the spiral root (D) (D = 4d), which is the width of the spiral root 110 This is because it is possible to induce a stable bending process of the spiral root 110 while minimizing.

본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.
It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

10 ... 패널 20 ... 지지리브
100 ... 전단보강체 110 ... 나선근
120 ... 상부근 130 ... 하부근
140 ... 지지다리 150 ... 호형 선단10 ... Panel 20 ... Support Rib
100 ... Shear reinforcement 110 ... Helix
120 ... upper root 130 ... lower root
140 ... support leg 150 ... arc tip

Claims (2)

장스팬 패널(10)의 일측 면상에 다수개의 지지리브(20)가 폭방향으로 등간격 배열되는 건축물 시공용 피씨 슬래브에 있어서,
상기 지지리브(20)의 내부에는 피씨(PC) 양생시 나선형 전단보강체(100)가 매립되도록 형성되되, 상기 나선형 전단보강체(100)는 길이방향을 따라 나선으로 굽어지는 것으로, 너비보다 높이가 크면서 너비방향으로 원호(原戶)를 그리는 장방형(長方形) 타원 나선으로 형성된 나선근(110)과, 상기 나선근(110)의 길이방향을 따라 나선근(110)의 일 측면 상부에 내접하게 배치되어 접합된 1본의 상부근(120)과, 상기 나선근(110)의 길이방향을 따라 나선근(110)의 타 측면 하부에 내접하게 배치되어 접합된 1본의 하부근(130)과, 상기 나선근의 하부 일측 및 타측에 결합되는 복수 이상의 지지다리(140)가 결합되어 피씨(PC) 몰딩시 작업 시공성은 개선되고, 지진 발생시 길이방향에 대한 지진하중의 저항 능력은 크게 확보되도록 하는 것을 특징으로 하는 내진용 전단보강체를 갖는 건축물용 피씨 슬래브.In the construction slab PC slab in which a plurality of support ribs 20 are arranged at equal intervals in the width direction on one side of the long span panel 10,
The support rib 20 is formed so that the spiral shear reinforcement 100 is embedded during the curing PC (PC), the spiral shear reinforcement 100 is bent in a spiral along the longitudinal direction, higher than the width Helix root 110 formed of a rectangular elliptical spiral drawing a circular arc in the width direction with a large width, and in the upper side of one side of the spiral root 110 along the longitudinal direction of the spiral root 110. One upper root 120 which is disposed to be in contact with and bonded to one lower root 130 which is disposed indirectly in the lower side of the other side of the spiral root 110 along the longitudinal direction of the spiral root 110. And, a plurality of support legs 140 are coupled to the lower one side and the other side of the helix muscle is coupled to improve the workability when molding the PC (PC), so that the seismic load resistance ability in the longitudinal direction during the earthquake is largely secured Seismic shear reinforcing body, characterized in that Building with precast concrete slabs. 제 1항에 있어서, 상기 나선형 전단보강체(100)는 지지리브(20)에 매립시 나선근(110)의 상부측 호형 선단(150)이 패널(10)의 상부면에 돌출되어 별도의 연결근과 결속되도록 하는 것을 특징으로 하는 내진용 전단보강체를 갖는 건축물용 피씨 슬래브.
According to claim 1, wherein the helical shear reinforcement (100) is buried in the support rib 20, the upper arc-shaped tip 150 of the spiral root 110 protrudes on the upper surface of the panel 10 is connected separately Building slabs for earthquake-resistant shear reinforcement, characterized in that the bond with the muscle.
KR1020110099587A 2011-09-30 2011-09-30 Pc slab with spiral type shear reinforcement device KR20130035355A (en)

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KR102091436B1 (en) * 2019-11-08 2020-03-20 류승일 Shear reinforcement for reinforced concrete walls and the installation method thereof
CN114592632A (en) * 2022-01-20 2022-06-07 山东神亿源环境科技有限公司 Hollow floor system supported by steel meshed body in combined manner
CN116733152A (en) * 2023-05-11 2023-09-12 深圳市特区建工科工集团盛腾科技有限公司 Prefabricated prestressing force double-T board with side direction adjustment mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102091436B1 (en) * 2019-11-08 2020-03-20 류승일 Shear reinforcement for reinforced concrete walls and the installation method thereof
CN114592632A (en) * 2022-01-20 2022-06-07 山东神亿源环境科技有限公司 Hollow floor system supported by steel meshed body in combined manner
CN116733152A (en) * 2023-05-11 2023-09-12 深圳市特区建工科工集团盛腾科技有限公司 Prefabricated prestressing force double-T board with side direction adjustment mechanism
CN116733152B (en) * 2023-05-11 2024-01-02 深圳市特区建工科工集团盛腾科技有限公司 Prefabricated prestressing force double-T board with side direction adjustment mechanism

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