KR101457070B1 - Precast concrete slab of Inver-Teed Rib - Google Patents

Precast concrete slab of Inver-Teed Rib Download PDF

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KR101457070B1
KR101457070B1 KR1020130119642A KR20130119642A KR101457070B1 KR 101457070 B1 KR101457070 B1 KR 101457070B1 KR 1020130119642 A KR1020130119642 A KR 1020130119642A KR 20130119642 A KR20130119642 A KR 20130119642A KR 101457070 B1 KR101457070 B1 KR 101457070B1
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rib
slab
flat plate
reinforcing bar
inverted
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Korean (ko)
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이종민
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(주)연우피씨엔지니어링
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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
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings

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  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

The present invention relates to an inverted rib slab for precast concrete (PC) structure. The PC inverted rib slab includes an upper protruding support rib of a structure with an inverted t-shape. As the slab is a flat plate, ceiling finishing work is simply performed, and a finishing work including facility construction can be easily conducted. Thus, costs for insulation can be reduced (when a cold storage is constructed). An effective space is expanded due to the flat ceiling surface, and a connection unit between plates (slabs) has a large effective depth of a topping concrete (T/C) in order to remarkably reduce cracks. Moreover, the continuity and integrity of a bonding unit between the slabs are excellent, and productivity and economic feasibility can be obtained through the cost reduction due to the reduction of a cross section.

Description

피씨 구조물용 인버티드 리브 슬래브{Precast concrete slab of Inver-Teed Rib}Precast concrete slab of Inver-Teed Rib

본 발명은 역 티(Tee) 구조의 상부 돌출형 지지리브를 갖는 피씨형 인버티드 리브 슬래브에 있어서, 상기 슬래브는 민자형 평판으로 인해 천정 마감이 평이하여 설비 등 마감 공사가 용이하도록 형성되고, 단열 공사비가 절감(냉동창고로 시공시)되며, 평평한 천정면으로 하여금 유효공간이 확대됨은 물론 판과 판(슬래브간) 연결부는 탑핑 콘크리트(T/C)의 유효 깊이(Depth)가 크게 확보되어 균열 발생을 현저하게 감소시키도록 함은 물론 슬래브간 접합부의 연속성 및 일체성이 우수하며, 단면 감소로 인한 원가 절감을 통해 생산성과 경제성이 확보되는 것을 특징으로 하는 피씨 구조물용 인버티드 리브(Inver-Teed Rib) 슬래브에 관한 것이다.
The present invention is a PC-type inverted rib slab having an upper protruding support rib of a reverse tee structure, wherein the slab has a flat ceiling due to a private-shaped plate, so that it is easy to finish the installation such as equipment, and the insulation construction cost This reduces (when installed in a frozen warehouse), increases the effective space for the flat ceiling surface, and also increases the effective depth (Depth) of the topping concrete (T/C) between the plate and the plate (slab), resulting in cracking. Inverted ribs for PC structures, which are characterized by being significantly reduced, as well as having excellent continuity and integrity of joints between slabs, and securing productivity and economical efficiency through cost reduction due to reduced cross-section. ) It is about the slab.

일반적으로 지하주차장을 포함한 공공시설물 또는 공공주택 등의 건축물을 시공하는 경우에는 많은 하중이 요구되므로, 특허출원 제10-2010-0084034호와 같이 피씨 부재를 제작하여 현장에서 맞춤 조립하도록 형성되고 있으며, 이러한 시공방법은 통상 하프 슬래브(Half PC Slab)를 이용한 PRC(Precast Reinforced Concrete Layer Construction Method) 복합화 공법 등이 실시되고 있다.In general, when constructing public facilities including underground parking lots or buildings such as public houses, a lot of load is required. Thus, as in patent application no. Such a construction method is a PRC (Precast Reinforced Concrete Layer Construction Method) composite method using a half PC slab.

즉, 이러한 PRC 복합화 공법은 철근 콘크리트 라멘(Rahmen) 구조의 건물을 PC(Precast Concrete)화하는 공법으로서, 공장에서 제작한 PC기둥, PC보, 하프 슬래브 등 PC부재를 현장으로 운송, 양중하여 조립한 후 부재 간 접합부와 하프 슬래브의 상부에 덧침 콘크리트를 현장에서 타설하여 구조체를 일체화시키도록 형성된다.In other words, this PRC complexing method is a method of converting a reinforced concrete ramen structure building into a PC (Precast Concrete), and transporting and lifting PC members such as PC pillars, PC beams, and half slabs manufactured in the factory to the site. After that, it is formed to unify the structure by pouring overlaid concrete on the top of the joint and the half slab between the members.

이에, 최근에는 더블티 슬래브공법이 실시되고 있다. 즉, DTS 공법이라고도 하는데 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 치켜 올려지도록 형성되어 약 10m 이상의 장스팬으로 지상층 구조물에 주로 적용되고 있다.Thus, recently, the double-tee slab construction method has been implemented. That is, it is also called a DTS method, and the double-tee slab is formed to form an integral member after applying a tensile force by installing a deep reinforcing rib on the bottom plate and inserting a strand under the reinforcing rib. Due to this, the center portion of the bodyboard of the double-tee slab is slightly raised and is mainly applied to the ground floor structure with a long span of about 10 m or more.

그러나, 상술한 종래의 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 conventional double-tee slab is formed to form a ceiling of the basement or the ground layer by adding concrete after bending the upper part by planting a plurality of buried connecting rods in a support rib for reinforcing. In manufacturing the PCB slab, the worker has to manually insert the slab at a set interval, which increases labor costs and reduces workability due to cumbersome work, which eventually leads to air delay.

이에, 종래의 피씨 슬래브 종류와 해당 피씨 슬래브의 특장점을 살펴보면 아래 표와 같다.Accordingly, the types of conventional PC slabs and the characteristics of the corresponding PC slabs are as follows.


하향 분기식 TEE 슬래브와 너와 연결식 TEE 슬래브
Downward TEE Slab and TEE Slab Connected to You

Figure 112013090884546-pat00001


Figure 112013090884546-pat00001

상기 표 1에서 보는 바와 같이, 종래의 MTS 슬래브나 RQS 슬래브는 천정 마감시 다수개의 지지리브(TEE)에 의해 설비 등 마감 공사가 번거롭고 어려우며, 단열 공사비가 상승(냉동창고로 시공시)되고, 낮은 천정면으로 하여금 유효공간이 축소되는 문제가 발생된다.
As shown in Table 1, the conventional MTS slab or the RQS slab is cumbersome and difficult to finish, such as a facility, due to a plurality of support ribs (TEE) when the ceiling is finished, and the insulation cost is increased (when installed in a frozen warehouse), low The problem is that the effective space is reduced by the ceiling surface.


속빈 할로코어 슬래브와 더블 TEE 슬래브
Hollow hollow core slab and double TEE slab

Figure 112013090884546-pat00002


Figure 112013090884546-pat00002

또한, 상기 표 2에서 보는 바와 같이, 종래의 할로코어 슬래브는 두께가 증가하여 층고가 높아지므로 고층건물에 적용시에는 문제가 있으며, 더블티형 하프 슬래브는 현장타설 콘크리트의 물량이 증가하고 리브가 하면에 돌출되어 있어 평면 구성에 제한을 받는다는 문제가 발생되고 있는 실정이다.
In addition, as shown in Table 2, the conventional halo-core slab has a problem when applied to a high-rise building because the thickness increases and the floor height increases, and the double-tied half slab increases the amount of cast-in-place concrete and the ribs on the lower surface. There is a problem that it is protruded and thus is limited by the planar configuration.


속빈 리브 플러스 슬래브와 역 리브드 슬래브
Hollow rib plus slab and reverse ribbed slab

Figure 112013090884546-pat00003


Figure 112013090884546-pat00003

또한, 상기 표 3에서 보는 바와 같이, 종래의 리브 플러스 슬래브는 구조 강성이 약하고 단열을 위한 내부 스티로폼에 의해 제조 원가가 상승되는 문제가 있으며, 역 리브드 슬래브는 층 두께(리브가 돌출된 높이-일명 리브춤)가 높은 단면에 적용하기 곤란함은 물론 전단보강철근 배근이 불가하여 현장타설 콘크리트와의 합성력이 저하되어 구조 안전성에 문제가 발생하고 있는 실정이다.
In addition, as shown in Table 3, the conventional rib plus slab has a problem that the structural rigidity is weak and the manufacturing cost is increased by the inner styrofoam for heat insulation, and the reverse ribbed slab has a layer thickness (height of the rib protruding-aka It is difficult to apply it to a section with a high rib dance), and shear reinforcement reinforcement is not possible, so the synthetic strength with cast-in-place concrete decreases, causing structural safety problems.

본 발명은 상술한 문제점을 해결하기 위한 것으로, 그 기술적 요지는 역 티(Tee) 구조의 상부 돌출형 지지리브를 갖는 피씨형 인버티드 리브 슬래브에 있어서, 상기 슬래브는 민자형 평판으로 인해 천정 마감이 평이하여 설비 등 마감 공사가 용이하도록 형성되고, 단열 공사비가 절감(냉동창고로 시공시)되며, 평평한 천정면으로 하여금 유효공간이 확대됨은 물론 판과 판(슬래브간) 연결부는 탑핑 콘크리트(T/C)의 유효 깊이(Depth)가 크게 확보되어 균열 발생을 현저하게 감소시키도록 함은 물론 슬래브간 접합부의 연속성 및 일체성이 우수하며, 단면 감소로 인한 원가 절감을 통해 생산성과 경제성이 확보되는 것을 특징으로 하는 피씨 구조물용 인버티드 리브(Inver-Teed Rib) 슬래브를 제공함에 그 목적이 있다.
The present invention is to solve the above-mentioned problems, the technical point of the inverted Tee (Tee) structure of the PC-type inverted rib slab having a support rib, the slab has a flat ceiling due to the private plate Therefore, it is formed to facilitate finishing work such as facilities, and the insulation cost is reduced (when installed in a frozen warehouse), and the effective space is expanded to the flat ceiling surface, and the plate-to-plate (slab-to-slab) connection is topped concrete (T/C) ) The effective depth of the (Depth) is largely secured to significantly reduce the occurrence of cracks, as well as the continuity and integrity of the joints between the slabs, and productivity and economics are secured through cost reduction due to reduced cross-section. An object of the present invention is to provide an inverted rib for a PC structure.

이러한 목적을 달성하기 위해 본 발명은 층간의 춤(층 두께: 리브가 돌출된 높이-일명 리브춤)이 낮은 경우의 실시예로서, 평판(110)의 상부에 다수개의 지지리브(120)가 돌출되어 등간격을 이루도록 하되, 지지리브(120) 사이 면상에는 쉐어 키(112)가 형성되고, 지지리브의 길이방향 양단부에는 마감턱(130)으로부터 구획된 공간부(140)가 형성되며, 상기 마감턱(130)은 일부가 매입되고 다른 일부가 분기된 철근(131)이 형성되고, 폭방향으로 이웃한 타측 슬래브의 평판 날개면(150)에는 이음부 접합 일체화를 위한 균열방지용 연결근(200)이 구성되어 이루어진다.In order to achieve this object, the present invention is an embodiment in the case where the inter-layer dance (layer thickness: the height at which the ribs protrude-aka the rib dance) is low. To achieve an equal interval, a share key 112 is formed on the surface between the support ribs 120, and a space 140 partitioned from the closing jaw 130 is formed at both ends of the support rib in the longitudinal direction. (130) is a part is embedded, the other part is branched reinforcing bar 131 is formed, in the width direction adjacent to the other side of the slab flat surface 150, the joint for preventing cracks for integration of the joint joint 200 It consists and is made.

이때, 상기 인버티드 리브 슬래브는 평판(110)과 지지리브(120)의 상면에 현장 콘크리트(C)와의 합성력 증대를 위해 샌딩면(160)이 형성되는 것이 바람직하다.At this time, the inverted rib slab, it is preferable that the sanding surface 160 is formed on the upper surface of the flat plate 110 and the support rib 120 to increase the synthesizing power of the field concrete (C).

또한, 상기 인버티드 리브 슬래브는 지지리브(120)를 기준으로 평판(110) 내에 펼침식 보강근(170)이 형성되도록 하되, 상기 펼침식 보강근(170)은 일부가 평판 내에 매입되도록 형성되고, 다른 일부는 지지리브(120)를 향해 절곡된 상태로 분기되도록 한 뒤, 현장 콘크리트(C)의 타설 전에 절곡된 선단(171)을 상향으로 펴서 합성시키도록 하는 것이 바람직하다.
In addition, the inverted rib slab is formed so that the reinforcing reinforcing bar 170 is formed in the flat plate 110 based on the support rib 120, but the reinforcing reinforcing bar 170 is formed to be partially embedded in the flat plate. It is preferable that some of them be branched in a bent state toward the support ribs 120 and then synthesized by extending the bent tip 171 upwards before pouring of the on-site concrete C.

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이와 같이, 본 발명은 민자형 평판으로 인해 천정 마감이 평이하여 설비 등 마감 공사가 용이하도록 형성되고, 단열 공사비가 절감(냉동창고로 시공시)되며, 평평한 천정면으로 하여금 유효공간이 확대됨은 물론 판과 판(슬래브간) 연결부는 탑핑 콘크리트(T/C)의 유효 깊이(Depth)가 크게 확보되어 균열 발생을 현저하게 감소시키도록 함은 물론 슬래브간 접합부의 연속성 및 일체성이 우수하며, 단면 감소로 인한 원가 절감을 통해 생산성과 경제성이 확보되는 효과가 있다.
As described above, the present invention is formed to facilitate the finishing work such as facilities due to the flat ceiling due to the private-type flat plate, the insulation construction cost is reduced (when installed in a frozen warehouse), and the effective space is extended to the flat ceiling surface. The connection between the plate and the slab (slab) is greatly secured by the effective depth (Depth) of the topping concrete (T/C), which significantly reduces cracking, as well as excellent continuity and integrity of the joints between the slabs, and reduced cross-section Productivity and economic efficiency are secured through cost reduction.

도 1 내지 도 3은 본 발명에 따른 인버티드 리브 슬래브의 일 실시예로서, 슬래브에 쉐어 키가 형성되어 층간 높이(층 두께: 리브가 돌출된 높이-일명 리브춤)가 낮을 경우에 사용되는 것을 나타낸 예시도,
도 4는 본 발명에 따른 인버티드 리브 슬래브의 다른 실시예로서, 슬래브에 거친표면을 갖는 샌딩면이 형성되어 층간 높이(리브춤)가 낮을 경우에 사용되는 것을 나타낸 예시도,
도 5는 본 발명에 따른 인버티드 리브 슬래브의 또 다른 실시예로서, 슬래브에 거친표면을 갖는 샌딩면과 펼침식 보강근이 형성되어 층간 높이(리브춤)가 낮을 경우에 사용되는 것을 나타낸 예시도,1 to 3 is an embodiment of an inverted rib slab according to the present invention, showing that a share key is formed on the slab to be used when the interlayer height (layer thickness: the height at which the rib protrudes-aka rib dance) is low. Illustration,
Figure 4 is another embodiment of an inverted rib slab according to the present invention, an exemplary view showing that a sanding surface having a rough surface is formed on the slab and used when the interlayer height (rib dancing) is low,
Figure 5 is another embodiment of an inverted rib slab according to the present invention, an exemplary view showing that the sanding surface and the reinforcing reinforcement having a rough surface are formed on the slab and used when the interlayer height (rib dancing) is low,

다음은 첨부된 도면을 참조하며 본 발명을 보다 상세히 설명하겠다.Next, the present invention will be described in more detail with reference to the accompanying drawings.

먼저, 도 1 내지 도 5에 도시된 바와 같이, 본 발명은 층간의 춤(리브춤)이 낮은 경우의 실시예로서, 평판(110)의 상부에 다수개의 지지리브(120)가 돌출되어 등간격을 이루도록 형성된다.First, as shown in Figures 1 to 5, the present invention is an embodiment in the case where the inter-floor dance (rib dance) is low, a plurality of support ribs 120 are projected on the top of the flat plate 110 at equal intervals It is formed to achieve.

이때, 상기 지지리브(120) 사이 면상에는 쉐어 키(112)가 형성되고, 지지리브의 길이방향 양단부에는 마감턱(130)으로부터 구획된 공간부(140)가 형성되며, 상기 마감턱(130)은 일부가 매입되고 다른 일부가 분기된 철근(131)이 형성되고, 폭방향으로 이웃한 타측 슬래브의 평판 날개면(150)에는 이음부 접합 일체화를 위한 균열방지용 연결근(200)이 구성되어 이루어진다.
이에, 상기 연결근(200)은 통상의 철선을 다수개가 엮인 상태로 고정되는 것으로, 상기 철선은 현장배근과 고정되거나 패널의 상면에 일정한 간격을 두고 일부 꺽인 다리를 통해 지지고정된 후 콘크리트에 의해 타설되도록 형성된다.
이때, 도 1에서 보이는 연결근(200)은 종단면시 보여지는 수평 상태로서, 상기 철선은 미도시된 상태이다. 즉, 상기 연결근의 결합관계는 일반적인 철선 배근으로 하여금 고정되도록 형성되는 것이 바람직하다.At this time, a share key 112 is formed on the surface between the support ribs 120, and a space 140 partitioned from the closing jaw 130 is formed at both ends in the longitudinal direction of the supporting rib, and the closing jaw 130 is formed. A part of the silver is embedded and the other part is branched, the reinforcing bar 131 is formed, and the flat wing surface 150 of the other side slab in the width direction is formed with a crack preventing connection bar 200 for integration of joints. .
Thus, the connecting bar 200 is fixed in a state in which a plurality of ordinary iron wires are woven, and the iron wires are fixed to the spots on the spot or fixed and supported by some bent legs at regular intervals on the upper surface of the panel. It is formed to pour.
At this time, the connective muscle 200 shown in FIG. 1 is a horizontal state shown in a longitudinal section, and the iron wire is not shown. That is, it is preferable that the connection relationship between the connecting muscles is formed such that the general iron wire reinforcement is fixed.

이때, 상기 인버티드 리브 슬래브는 평판(110)과 지지리브(120)의 상면에 현장 콘크리트(C)와의 합성력 증대를 위해 샌딩면(160)이 형성되는 것이 바람직하다.At this time, the inverted rib slab, it is preferable that the sanding surface 160 is formed on the upper surface of the flat plate 110 and the support rib 120 to increase the synthesizing power with the on-site concrete (C).

또한, 상기 인버티드 리브 슬래브는 지지리브(120)를 기준으로 평판(110) 내에 펼침식 보강근(170)이 형성되도록 하되, 상기 펼침식 보강근(170)은 일부가 평판 내에 매입되도록 형성되고, 다른 일부는 지지리브(120)를 향해 절곡된 상태로 분기되도록 한 뒤, 현장 콘크리트(C)의 타설 전에 절곡된 선단(171)을 상향으로 펴서 합성시키도록 하는 것이 바람직하다.
In addition, the inverted rib slab is formed so that the reinforcing reinforcing bar 170 is formed in the flat plate 110 based on the support rib 120, but the reinforcing reinforcing bar 170 is formed to be partially embedded in the flat plate. It is preferable that some of them be branched in a bent state toward the support ribs 120 and then synthesized by extending the bent tip 171 upwards before pouring of the on-site concrete C.

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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.
The present invention is not limited to the specific preferred embodiments described above, and various modifications can be carried out by anyone who has ordinary knowledge in the art to which the subject design pertains without departing from the gist of the invention as claimed in the claims. Of course, such changes are within the scope of the claims.

100 ... 인버티드 리브 슬래브 110 ... 평판
120 ... 지지리브 130 ... 마감턱
140 ... 공간부 150 ... 날개면
160 ... 샌딩면 170 ... 펼침식 보강근
180 ... 빈공간 200 ... 연결근100 ... Inverted rib slab 110 ... Reputation
120 ... support rib 130 ... closing jaw
140 ... space 150 ... wing surface
160 ... Sanding surface 170 ... Reinforcing bar
180 ... Empty space 200 ... Connected root

Claims (5)

평판(110)의 상부에 다수개의 지지리브(120)가 돌출되어 등간격을 이루도록 하되, 지지리브(120) 사이 면상에는 다수개의 쉐어 키(112)가 등간격으로 형성되어 현장 콘크리트(C)와의 합성되도록 형성되고, 평판(110)과 지지리브(120)의 상면에는 현장 콘크리트(C)와의 합성력 증대를 위해 거친표면을 갖는 샌딩면(160)이 형성되도록 하며, 지지리브(120)를 기준으로 평판(110) 내에는 펼침식 보강근(170)이 형성되도록 하되, 상기 펼침식 보강근(170)은 일부가 평판 내에 매입되도록 형성되고, 다른 일부는 지지리브(120)를 향해 절곡된 상태로 분기되도록 한 뒤, 현장 콘크리트(C)의 타설 전에 절곡된 선단(171)을 상향으로 펴서 합성시키도록 하는 피씨 구조물용 인버티드 리브 슬래브에 있어서,
상기 쉐어 키(112)는 중앙 지지리브를 기준으로 좌우측 지지리브 사이 면상에서는 길이방향을 따라 2열 종대를 이루면서 등간격 배열되도록 형성되고, 평판의 폭방향 바깥쪽 지지리브 면상에서는 다수개의 쉐어 키(112)가 1열 종대를 이루도록 배열되되, 마주하는 타측 슬래브의 쉐어 키와 대응되면 조립된 이음부에서도 쉐어 키(112)가 2열 종대를 이루도록 함으로써 수평전단력에 대한 균등한 합성력을 이루도록 하되,
지지리브(120)의 내부에는 평판(110) 측으로부터 직교되어 상향 기립된 'L'자형 철근과 길이방향을 따라 연속된 이형근이 매입되도록 형성되고, 상기 'L'자형 철근은 이형근 및 펼침식 보강근의 매입측 선단과 접합되어 지지리브의 횡방향 저항력을 개선하도록 하는 것을 특징으로 하는 피씨 구조물용 인버티드 리브 슬래브.

A plurality of support ribs 120 are projected on the upper portion of the flat plate 110 so as to form an equal interval, but on the surface between the support ribs 120, a number of share keys 112 are formed at equal intervals, and with the on-site concrete (C) It is formed so as to be synthesized, and a sanding surface 160 having a rough surface is formed on the upper surfaces of the flat plate 110 and the support ribs 120 to increase the synthesis force with the on-site concrete C, and based on the support ribs 120 In the flat plate 110, the reinforcing reinforcing bar 170 is formed to be formed, but the reinforcing reinforcing bar 170 is formed so that a part is embedded in the flat plate, and the other part is branched in a bent state toward the support rib 120. After, in the inverted rib slab for a PC structure to be synthesized by extending the bent tip 171 upwards before pouring of on-site concrete (C),
The share key 112 is formed to be arranged at equal intervals while forming two rows vertically along the longitudinal direction on the surface between the left and right support ribs based on the central support rib, and a plurality of share keys ( 112) is arranged so as to form a column in the first row, and if the counter key of the opposite side slab corresponds to the shared key, the shared key 112 is also formed in the second row in the assembled joint, so as to achieve an even synthesis force against the horizontal shear force,
Inside the support rib 120, an'L'-shaped reinforcing bar that is orthogonal from the flat plate 110 side and upwardly formed and a continuous deformed bar along the longitudinal direction are formed, and the'L'-shaped reinforcing bar is a bimodal and expandable reinforcing bar. Inverted rib slab for the PC structure, characterized in that to be joined to the input end of the improve the lateral resistance of the support rib.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101967693B1 (en) * 2018-07-20 2019-08-19 강문기 CIP retaining wall with for easy construction
KR102372199B1 (en) * 2021-09-01 2022-03-10 서울대학교 산학협력단 Inverted ribbed precast concrete slab with crack preventing plate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0320613U (en) * 1989-07-10 1991-02-28
JPH0721221B2 (en) * 1989-05-11 1995-03-08 住友建設株式会社 Construction method of reinforced concrete slab
JPH10110498A (en) * 1996-10-07 1998-04-28 Taisei Corp Half-precast floor slab and construction method of hollow flat slab making use thereof
JPH10205039A (en) * 1997-01-27 1998-08-04 Showa Concrete Ind Co Ltd Manufacture of pca slab for composite floor slab and constructing method of composite floor slab
JP7021221B2 (en) * 2016-12-15 2022-02-16 ルノー エス．ア．エス． Automotive structure with sunroof, roof frame, and corresponding roof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0721221B2 (en) * 1989-05-11 1995-03-08 住友建設株式会社 Construction method of reinforced concrete slab
JPH0320613U (en) * 1989-07-10 1991-02-28
JPH10110498A (en) * 1996-10-07 1998-04-28 Taisei Corp Half-precast floor slab and construction method of hollow flat slab making use thereof
JPH10205039A (en) * 1997-01-27 1998-08-04 Showa Concrete Ind Co Ltd Manufacture of pca slab for composite floor slab and constructing method of composite floor slab
JP7021221B2 (en) * 2016-12-15 2022-02-16 ルノー エス．ア．エス． Automotive structure with sunroof, roof frame, and corresponding roof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101967693B1 (en) * 2018-07-20 2019-08-19 강문기 CIP retaining wall with for easy construction
KR102372199B1 (en) * 2021-09-01 2022-03-10 서울대학교 산학협력단 Inverted ribbed precast concrete slab with crack preventing plate

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