KR100763979B1 - Multi slab for construction of underground parking lot - Google Patents

Multi slab for construction of underground parking lot Download PDF

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KR100763979B1
KR100763979B1 KR1020070043965A KR20070043965A KR100763979B1 KR 100763979 B1 KR100763979 B1 KR 100763979B1 KR 1020070043965 A KR1020070043965 A KR 1020070043965A KR 20070043965 A KR20070043965 A KR 20070043965A KR 100763979 B1 KR100763979 B1 KR 100763979B1
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South Korea
Prior art keywords
slab
support ribs
construction
panel
parking lot
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KR1020070043965A
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Korean (ko)
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정호완
이종민
박용현
진언식
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정도건설 주식회사
벽산건설 주식회사
현대건설주식회사
(주)연우엔지니어링건축사사무소
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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
    • 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
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors

Abstract

A multi slab for construction of an underground parking lot is provided to increase resistant capacity against the vertical and lateral force, and to shorten the constructing time by forming a plurality of integral support ribs on one surface of a pc panel and mounting the reinforcing rods to two ends of the support rib. A plurality of support ribs(200) vertically projected to the one side of a panel(100) include reinforcing bars(300). One lateral end of the reinforcing bars is embedded in the support ribs, and the other lateral end of the reinforcing bars is branched to the outside of the support ribs to be upwardly bent so as to mount a continuous slab to two longitudinal ends. The support ribs are projected with 2 to 5 with the same interval on the panel. The projected height of the support ribs is increased according to the set proportional value as the width direction length of the panel is increased.

Description

지하주차장 시공용 멀티슬래브{Multi slab for construction of underground parking lot}Multi slab for construction of underground parking lot}

도 1은 본 발명의 양단고정보 방식의 멀티슬래브를 이용하여 시공되는 지하주차장 평면도,1 is a plan view of an underground parking lot constructed by using a multi-slab of both height information methods of the present invention;

도 2는 본 발명의 양단 고정보 방식 멀티슬래브를 나타낸 사시도,Figure 2 is a perspective view showing a high information multi-slab at both ends of the present invention,

도 3은 도 2의 일측단면도,3 is a side cross-sectional view of FIG.

도 4는 본 발명에 따른 멀티슬래브가 다양한 PC보에 안착된 상태를 나타낸 실시예시도,4 is an exemplary view showing a state in which the multi-slab according to the present invention seated on various PC beams,

도 5는 본 발명의 멀티슬래브가 시공된 상태를 나타낸 상세 일측면도, Figure 5 is a detailed one side view showing a state in which the multi-slab construction of the present invention,

도 6는 본 발명 멀티슬래브와 종래 슬래브의 저항능력치를 나타낸 비교표,6 is a comparison table showing the resistance capacity of the present invention multi-slab and the conventional slab,

도 7은 종래 단순보 방식의 슬래브를 이용하여 시공되는 지하주차장 평면도,7 is a plan view of an underground parking lot constructed by using a slab of a conventional simple beam method,

도 8은 도 7의 시공 상태도이다.8 is a construction state diagram of FIG. 7.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 ... PRC 복합화 공법 20 ... 슬래브10 ... PRC compounding method 20 ... slab

30 ... PC단순보 40 ... PC거더30 ... Simple PC 40 ... PC Girder

50 ... 더블티슬래브공법 60 ... 더블티슬래브50 ... Double Tee Slab 60 ... Double Tee Slab

70 ... 보강리브 71 ... 스트랜드70 ... reinforced ribs 71 ... strand

100 ... 패널 200 ... 지지리브100 ... panel 200 ... support rib

300 ... 강선(철심)300 ... steel wire

본 발명은 지하주차장 시공용 멀티슬래브에 관한 것으로, 그 기술적 요지는 대형 지하주차장을 건설함에 있어서 장스팬 시공시 발생되는 슬래브의 자중, 휨 및 전단력 등 단순보 시공방식에 의한 수직횡력에 대해 저항능력이 개선되도록 PC패널의 일측 면상에 다수개의 일체형 지지리브를 형성하되, 상기 지지리브 양단부에는 양단고정보 방식의 강선(철심)을 더 부설하여 PC보에 안착시킨 후 덧침 콘크리트로 시공함으로써 연속하는 멀티슬래브 구조를 갖도록 형성되는 바, 이러한 멀티슬래브는 수직횡력에 대한 저항능력이 종래에 비해 15% 이상 개선되어 중량 대비 구조가 견고해지고, 개선된 저항능력은 기존의 장스팬 시공 면적대비 PC기둥의 사용, 기타 구조부재 및 원가비용이 절감됨은 물론 시공 기간(공기)이 단축되어 공사에 따른 경제성과 작업 생산성 및 구조 저항능력이 향상되는 것을 특징으로 하는 지하주차장 시공용 멀티슬래브에 관한 것이다.The present invention relates to a multi-slab for the construction of underground parking lot, the technical gist of which is to resist the vertical lateral force by the simple beam construction method such as the self-weight, bending and shear force of the slab generated during long span construction in the construction of large underground parking lot A plurality of integrated support ribs are formed on one side of the PC panel so that the improvement is possible, and both ends of the support ribs are further provided with steel wires (iron cores) of both ends and high information type, seated on the PC beams, and then constructed with an overlaid concrete. The multi-slab is formed to have a slab structure, and the resistance to vertical lateral force is improved by more than 15% compared to the conventional one, so that the structure is strong compared to the weight, and the improved resistance capacity is the use of PC pillars compared to the existing long span construction area. And other structural members and cost, as well as shortening construction period (air) Relates to an acid and a multi-slab structure for underground parking installation characterized in that the resistance capacity is improved.

일반적으로 대형 매장이나 공장 등의 긴 경간이 요구되는 대공간 건물을 시공하는 PC공법으로는 더블티슬래브(Double Tee Slab), HCS(Hollow core Slab) 등을 이용한 PRC 복합화 공법(Precast Reinforced Concrete Layer Construction Method)이 있고 지하주차장과 같이 하중이 많은 중규모 이하의 건물에 적용하는 PC공법으로는 하프슬래브(Half PC Slab)를 이용한 PRC 복합화 공법 등이 있다.In general, as a PC method for constructing a large space building that requires a long span such as a large store or a factory, a PRC composite method using a double tee slab, a hollow core slab, etc., is used. Method) and the PC method applied to sub-medium sized buildings such as underground parking lot, PRC compounding method using Half PC Slab.

이러한 PRC 복합화 공법은 철근 콘크리트 라멘(Rahmen) 구조의 건물을 PC(Precast Concrete)화하는 공법으로 공장에서 제작한 PC기둥, PC보, 하프슬래브 등 PC부재를 현장으로 운송, 양중하여 조립한 후 부재간 접합부와 하프슬래브의 상부에 덧침콘크리트를 현장에서 타설하여 구조체를 일체화시키는 공법이다.This PRC compounding method is a method of converting reinforced concrete ramen (Rahmen) -structured buildings into PCs (Precast Concrete). It is a method of integrating the structure by pouring the overcast concrete on the joint and the upper part of the half slab.

한편, 지하주차장 시공(건설)의 경우 최근에는 차량의 크기가 증가되어 넉넉한 주차공간 확보가 요구됨으로써 긴 경간(장스팬)이 요구되고, 이에 대공간 건물을 시공시에는 일반적으로 스팬이 7.5 X 7.8 m, 7.5 X 8.0 m, 7.5 X 9.0 m 또는 8.0 X 8.0 m가 요구되어, PRC 복합화 공법(10)은 슬래브(20)가 짧게 설계되어 1방향으로 시공이 부적합하기 때문에 2방향으로 시공하고 있는 실정이다. On the other hand, in the case of construction of underground parking lot (construction), the size of the vehicle has recently been increased, and sufficient parking space is required to secure a long parking space. Therefore, when constructing a large space building, the span is generally 7.5 X 7.8. m, 7.5 X 8.0 m, 7.5 X 9.0 m or 8.0 X 8.0 m is required, and the PRC compounding method 10 is constructed in two directions because the slab 20 is designed to be short and construction is not suitable in one direction. to be.

즉, 도 6 내지 도 7에 도시된 바와 같이, 2방향으로 시공하게 되면 소요되는 구조부재인 PC단순보(30) 및 PC거더(40)가 증가되어 전체 PC물량이 증가되어 타 공법 대비 경쟁력이 낮아지며, 억지로 1방향 시공을 하려하면 PC물량은 증가되나 슬래브(20)의 두께 및 철근량이 증가되어 공사비 증대를 초래되며, 장스팬(6m 초과)의 경우 구조역학상, 안전상 문제로 추가적인 지지보를 설치해야 하므로 추가 단가 상승 및 층고가 줄어들어 시공을 기피하는 문제점이 있었다.That is, as shown in Figures 6 to 7, when the construction in two directions, the PC simple beam 30 and the PC girder 40, which is a structural member required to increase the overall PC volume is increased compared to other methods If you try to construct one-way forcibly, PC quantity will increase but the thickness and rebar amount of slab 20 will increase, resulting in increased construction cost. In case of long span (more than 6m), additional support will be installed due to structural and safety problems. Since there is a need to avoid additional cost increases and floor heights to avoid construction.

또한, 상기 HCS 공법은 콘크리트가 가지고 있는 취약점인 인장저항성능의 부족을 프리스트레스(Prestress)를 도입한 PS강선을 이용하여 콘크리트에 선압축력을 가함으로써 인장저항 성능을 증진시킨 프리스트레스드 구조물(Prestressed Structure)로서 콘크리트 단면에 중공을 형성시켜 구조물의 자중을 줄인 속빈슬래브를 이용하여 10m 이상의 장스팬을 형성하여 지상층 구조물에만 주로 적용되고 있다.In addition, the HCS method is a prestressed structure that enhances the tensile resistance performance by applying a pre-stressing force to the concrete by using a PS steel wire in which prestress is introduced a lack of tensile resistance performance, which is a weakness of concrete. As a hollow span in the concrete cross-section to reduce the weight of the structure by using a hollow slab to form a long span of 10m or more is mainly applied only to the ground layer structure.

그러나, HCS는 PS강선 인장으로 인한 최소두께 확보 및 HCS 부재 제작을 위한 별도의 고가 장비가 필요하여 단가상승을 초래하며 부재에 균열 발생시 보수가 곤란한 문제점이 있다.However, HCS requires a separate expensive equipment for securing the minimum thickness and the production of HCS member due to the tension of PS steel wire, causing the unit cost rise, and there is a problem that is difficult to repair when a crack occurs in the member.

한편, 도 7에서와 같이 최근에는 더블티슬래브공법(50)이 실시되고 있다. 즉, DTS 공법이라고도 하는데 더블티슬래브(60) 바닥판에 깊은 보강리브(70)를 설치하고 상기 보강리브(70)의 하부에 스트랜드(71:Strand)를 삽입하여 인장력을 가한 뒤 일체의 부재를 이루도록 형성하는 바, 이러한 더블티슬래브(60)는 스트랜드(71)의 인장력으로 인해 더블티슬래브(60) 몸판 중앙부가 소폭 치켜올려지도록 형성되어 약 10m 이상의 장스팬으로 지상층 구조물에 주로 적용되고 있다.On the other hand, as shown in Fig. 7, the double tee slab method 50 has been recently performed. In other words, it is also known as the DTS method, a deep reinforcing rib 70 is installed on the bottom plate of the double tee slab 60 and a strand 71 is inserted into the lower part of the reinforcing rib 70 to apply a tensile force, and then an integral member is formed. Bars formed such that the double T slab 60 is formed so that the center portion of the double T slab 60 body plate slightly raised due to the tensile force of the strand 71 is mainly applied to the ground layer structure with a long span of about 10m or more.

그러나, 상술한 더블티슬래브공법(50)은 PC보에 걸침시 단순보 형태로 안착됨으로써 연속적인 슬래브 형태(양단고정보)를 이루기 어려운 바, 이는 휨 및 전단력 등 수직횡력에 대해 저항능력이 저하되어 구조가 취약해지는 문제가 있으며, 이를 개선하고자 상기 보강리브(70)를 추가로 부설하거나 돌출된 높이를 증가시키도록 형성되는 바, 이는 결국 PC기둥 다수 사용 등 제작원가가 상승되어 경제성이 저 하되며 건설 구조의 층고가 높아지는 문제점이 발생되고 있다.However, the double T slab method 50 described above is difficult to form a continuous slab form (both height information) by being seated in the form of a simple beam over a PC beam, which reduces the resistance to vertical lateral forces such as bending and shearing forces. There is a problem that the structure is vulnerable, and in order to improve this, the reinforcing ribs 70 are additionally laid or formed to increase the protruding height. And there is a problem that the height of the construction structure increases.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로, 그 기술적 요지는 대형 지하주차장을 건설함에 있어서 장스팬 시공시 발생되는 슬래브의 자중, 휨 및 전단력 등 단순보 시공방식에 의한 수직횡력에 대해 저항능력이 개선되도록 PC패널의 일측 면상에 다수개의 일체형 지지리브를 형성하되, 상기 지지리브 양단부에는 양단고정보 방식의 강선(철심)을 더 부설하여 PC보에 안착시킨 후 덧침 콘크리트로 시공함으로써 연속하는 멀티슬래브 구조를 갖도록 형성되는 바, 이러한 멀티슬래브는 수직횡력에 대한 저항능력이 종래에 비해 15% 이상 개선되어 중량 대비 구조가 견고해지고, 개선된 저항능력은 기존의 장스팬 시공 면적대비 PC기둥의 사용, 기타 구조부재 및 시공비용이 절감됨은 물론 시공 기간이 단축되어 공사에 따른 경제성과 작업 생산성 및 구조 저항능력이 향상되는 것을 특징으로 하는 지하주차장 시공용 멀티슬래브를 제공함에 그 목적이 있다.The present invention is to solve the conventional problems as described above, the technical gist of the vertical lateral force by the simple beam construction method, such as the self-weight, bending and shear force of the slab generated during long span construction in the construction of large underground parking lot A plurality of integral support ribs are formed on one side of the PC panel to improve the resistance, and both ends of the support ribs are provided with additional steel wires (iron cores) of both ends and fixed on the PC beams, and then constructed with overlay concrete. It is formed to have a multi-slab structure, such a multi-slab has improved resistance to vertical lateral force by more than 15% compared to the conventional structure, and the structure is solid compared to the weight, the improved resistance capacity compared to the conventional long span construction area PC pillar Economical and work-related work due to shortened construction period as well as reduction of use of construction, other structural members and construction cost To provide a multi-slab construction for underground car park, characterized in that acid and structural resistance ability is improved it is an object.

상술한 목적을 달성하기 위해 본 발명은 지하주차장 시공용 슬래브(PC Slab)에 있어서, 패널(100)의 일측 면상에 대해 수직으로 돌출되는 다수개의 지지리브(200)에는 길이방향 양단부에 연속슬래브(양단고정보)를 구축하도록 일측단이 지지리브(200)의 내측으로 매입되고, 타측단이 지지리브(200)의 외측으로 분기되어 상향 절곡되도록 형성되는 강선(300)이; 더 구성되어 이루어진다.In order to achieve the above object, the present invention is a slab for construction (PC Slab) for underground parking, a plurality of support ribs 200 protruding perpendicularly to one side of the panel 100 in the longitudinal slab at both ends in the longitudinal direction ( Steel wire 300 is formed so that one end is embedded into the support ribs 200 so as to build both height information, and the other end is branched out of the support ribs 200 to be bent upwardly; It is made up more.

이때, 상기 강선(300)을 갖는 지지리브(200)는 패널(100)의 일측 면상에 대해 2~5개가 등간격으로 돌출 형성되되, 상기 지지리브(200)는 패널(100)의 폭방향(L) 길이가 증가될수록 지지리브(200)의 돌출된 높이(h)는 설정된 비례값에 따라 증가되며 상기 지지리브(200)의 구비 갯수도 증가되도록 구성되는 것이 바람직하다.At this time, the support ribs 200 having the steel wire 300 is formed to protrude at the same interval 2 to 5 on one side of the panel 100, the support ribs 200 is the width direction of the panel 100 ( L) As the length is increased, the protruding height h of the support rib 200 is increased according to a set proportional value, and the number of provisions of the support rib 200 is also preferably increased.

다음은 첨부된 도면을 참조하며 본 발명을 보다 자세히 설명하겠다.The following describes the invention in more detail with reference to the accompanying drawings.

먼저 도 1 내지 도 4에 도시된 바와 같이, 본 발명은 대형지하주차장 건설에 있어서 장스팬 슬래브 시공시 발생되는 수직횡력에 대해 개선된 저항능력을 갖도록 양단고정보 방식의 멀티슬래브를 제공하도록 구성된다.First, as shown in Figures 1 to 4, the present invention is configured to provide a multi-stage high-information multislab to have an improved resistance to the vertical lateral force generated during the construction of long-span slab in the construction of large underground parking lot .

이에 상기 멀티슬래브는 프리캐스트 콘크리트(PC)로써 이루어진 패널(100)의 일측 면상에 대해 수직으로 돌출되는 다수개의 지지리브(200)를 형성하게 되는데, 이러한 지지리브(200)의 길이방향 양단부에는 연속슬래브(양단고정보)를 구축하도록 일측단이 지지리브(200)의 내측으로 매입되고 타측단이 지지리브(200)의 외측으로 분기되어 상향 절곡되도록 강선(300)이 더 형성된다.Accordingly, the multi slab forms a plurality of support ribs 200 protruding perpendicularly to one side of the panel 100 made of precast concrete (PC), which is continuous at both ends of the support ribs 200 in the longitudinal direction. The steel wire 300 is further formed such that one end is embedded into the support rib 200 to construct the slab (both height information) and the other end is branched out of the support rib 200 to bend upward.

이때, 상기 멀티슬래브의 지지리브(200)는 종래의 더블티슬래브처럼 별도의 결합턱을 형성하지 않고 PC보의 상단에 단순 걸침(안착)되도록 형성된다.At this time, the support rib 200 of the multi-slab is formed so as to simply hang on the top of the PC beam without forming a separate coupling jaw like the conventional double T slab.

이는 장스팬 시공 후 천정 미관이 개선되도록 유도하기 위함으로, 종래의 더블티슬래브는 PC보에 걸침시 기 성형된 결합 단턱에 의해 PC보의 측벽과 맞물려 결 합되었던 바, 이러한 더블티슬래브의 보강리브는 PC보 측벽으로부터 돌출되어 천정 미관이 저하되어 왔다. This is to induce the improvement of the ceiling aesthetics after the construction of the long span, the conventional double tee slab was combined with the sidewall of the PC beam by the coupling step formed during the PC beam, the reinforcement of the double tee slab The ribs protrude from the sidewalls of the PC beams and have degraded the ceiling aesthetics.

이때, 상기 지지리브(200) 길이방향 양단부에는 별도의 강선(300:철심)이 일부 매입되어 형성되는 바, 상기 강선(300)은 일종의 철심으로써 몸체 일부가 지지리브(200) 내측에 수용되고 타측은 지지리브(200) 바깥으로 돌출되되 돌출된 단부가 상향 절곡되어 후발 공정인 덧침콘크리트에 의해 양단보 방식으로 고정되는 한편, 서로 나란한 타측 멀티슬래브와 연속슬래브를 형성하게 된다.At this time, the support ribs 200 are formed by partially embedding a separate steel wire 300 (iron core) at both ends of the longitudinal direction, and the steel wire 300 is a kind of iron core, and a part of the body is accommodated inside the support rib 200 and the other ends. The side is protruded out of the support ribs 200, but the protruding end is bent upward to be fixed in both ends by the reinforcement of the overlaid concrete, while forming the other side of the multi-slab and the continuous slab parallel to each other.

즉, 도 5에 나타낸 바와 같이 본 발명의 양단고정보 방식인 멀티슬래브는 단순보 방식으로 형성된 종래의 더블티슬래브에 비해 수직횡력이 15% 이상 개선되는 장점이 있다.(아래 대비 공식 참조)That is, as shown in FIG. 5, the multi-slab of the high height information system of the present invention has an advantage that the vertical lateral force is improved by 15% or more compared with the conventional double T slab formed by the simple beam method.

양단보 방식인 본발명의 멀티슬래브 저항능력 수식Formulation of multislab resistance capacity of the present invention 단순보 방식인 종래 더블티슬래브 저항능력 수식Formulation of resistance resistance of conventional double T slab

Figure 112007033758681-pat00001
Figure 112007033758681-pat00001
Figure 112007033758681-pat00002
Figure 112007033758681-pat00002

즉, 덧침 콘크리트에 매입되는 멀티슬래브의 강선은 양단고정보 역활을 하며 기존의 단순보 형태를 이루던 종래의 더블티슬래브 결합방식에 비해 개선된 저항능력을 갖게된다.(연속슬래브 형태를 이루게 되어 수직횡력에 대한 저항력이 개선된다)In other words, the steel wire of the multi-slab embedded in the overlaid concrete serves both high and high information and has improved resistance compared to the conventional double t slab coupling method which used to form a simple beam. (The continuous slab forms a vertical shape. Resistance to lateral forces is improved)

한편, 도 6 내지 도 7에 도시된 바와 같이, 종래에는 더블티슬래브의 단순보 형태의 수직횡력 하중을 보다 견고하게 받치기 위해 필연적으로 PC기둥의 증설이 불가피하다.On the other hand, as shown in Figure 6 to 7, conventionally, in order to more firmly support the vertical lateral load in the form of a simple beam of the double T slab, it is inevitable to increase the PC pillar.

이때, 상기 PC기둥은 더블티슬래브를 지지함에 있어서, 균형있는 지지체를 이루기 위해 통상 장스팬의 사방 모서리 및 이들을 연결하는 선단 중앙부에 위치되어 상술한 더블티슬래브를 지지하게 된다.In this case, in supporting the double tee slab, the PC column is generally located at four corners of the long span and a leading end portion connecting the two tee slabs in order to form a balanced support.

이때, 상기 PC기둥 중 특히, 장스팬의 각 모서리부에 위치한 PC기둥들은 차량을 주차시 코너에서 원만한 주차를 방해하는 요인으로 문제가 되어 왔다.(차량의 전,후진 선회시 기둥과의 접촉사고 다수 유발됨)At this time, among the PC pillars, in particular, PC pillars located at each corner of the long span have become a problem as a factor that prevents smooth parking at the corner when the vehicle is parked. A lot)

이를 해소하기 위해 본 발명의 멀티슬래브는 양단보-연속슬래브 구조를 갖음으로써, 수직횡력에 대해 중량 대비 구조강도가 개선되어 도 1에서와 같이 PC기둥의 사용이 절감된다.(개선된 수직횡력에 의해 각 모서리 선단을 잇는 중앙부 PC기둥의 생략이 가능)In order to solve this problem, the multislab of the present invention has a double beam-continuous slab structure, thereby improving the structural strength to weight with respect to the vertical lateral force, thereby reducing the use of a PC pillar as shown in FIG. Center PC column connecting each corner tip can be omitted)

즉, 중간 지지체인 PC기둥의 시공 없이도 견고한 층간 지주 역활이 가능하며 이에 장스팬 시공시 각 모서리를 받치도록 형성되었던 사방 PC보 간격을 일정부분 좁힐 수 있게 형성되어 주차시 발생되었던 기둥과의 마찰을 피할 수 있도록 형성된다.In other words, it is possible to act as a firm interlayer strut without the construction of the PC pillar, which is an intermediate support, and to reduce the gap between the PC beams, which were formed to support each corner during the long span construction, to reduce the friction with the pillars generated during parking. It is formed to be avoided.

이에, 상기 강선(300)을 갖는 지지리브(200)는 패널(100)의 일측 면상에 대해 2~5개가 등간격으로 돌출 형성되되, 상기 지지리브(200)는 패널(100)의 폭방 향(L) 길이가 증가될수록 지지리브(200)의 돌출된 높이(h)는 설정된 비례값에 따라 증가되고, 상기 지지리브(200)의 구비 갯수도 증가되도록 구성되는 것이 바람직하다.Accordingly, the support ribs 200 having the steel wires 300 are formed at two to five protrusions at equal intervals with respect to one side surface of the panel 100, and the support ribs 200 extend in the width direction of the panel 100. L) As the length is increased, the protruding height h of the support ribs 200 is increased according to a set proportional value, and the number of provisions of the support ribs 200 is also increased.

다시 말해, 본 발명은 지하주차장의 스팬(경간) 넓이에 따라 슬래브 시공을 유동적으로 대처(폭방향 넓이를 증가)하기 위함으로, 이는 상기 스팬(경간)이 늘어남에 따라 멀티슬래브의 패널 폭방향(L)을 스팬의 넓이에 대해 대응시키며 넓게 설계하되, 넓어진 폭방향(L) 면적에 대해 구조의 수직횡력이 보강되도록 지지리브의 높이(h)가 증가시키거나, 지지리브(200)의 구비 갯수(2~5개 내외에서 설계값에 따라 대응)가 증가하도록 구성된다.In other words, the present invention is to cope with the slab construction in accordance with the span (span) width of the underground parking lot (increasing the width in the width direction), which is the panel width direction of the multi-slab ( The width of the support ribs is increased or the number of supporting ribs 200 is increased. (Corresponding to the design value within 2 to 5) is configured to increase.

이러한 멀티슬래브는 양단고정보 방식을 갖도록 별도의 강선(300)을 지지리브(200) 양단부에 형성한 후 덧침 콘크리트에 의해 연속슬래브 형태를 이루도록 형성되어 수직횡력에 대한 저항능력이 개선된다.The multi-slab is formed to form a continuous slab by the overlay concrete after forming a separate steel wire (300) on both ends of the support ribs 200 to have both height information method is improved resistance to the vertical lateral force.

이와 같이, 본 발명은 대형 지하주차장을 건설함에 있어서 장스팬 시공시 발생되는 슬래브의 자중, 휨 및 전단력 등 단순보 시공방식에 의한 수직횡력에 대해 저항능력이 개선되도록 PC패널의 일측 면상에 다수개의 일체형 지지리브를 형성하되, 상기 지지리브 양단부에는 양단고정보 방식의 강선(철심)을 더 부설하여 PC보에 안착시킨 후 덧침 콘크리트로 시공함으로써 연속하는 멀티슬래브 구조를 갖도록 형성되는 바, 이러한 멀티슬래브는 수직횡력에 대한 저항능력이 종래에 비해 15% 이상 개선되어 중량 대비 구조가 견고해지고, 개선된 저항능력은 기존의 장스팬 시공 면적대비 PC기둥의 사용, 기타 구조부재 및 시공비용이 절감됨은 물론 시공 기간이 단축되어 공사에 따른 경제성과 작업 생산성 및 구조 저항능력이 향상되는 효과가 있다.    As described above, the present invention is to construct a large underground parking lot in order to improve the resistance to the vertical lateral force by the simple beam construction method, such as the weight of the slab, bending and shear force generated during the long span construction on the one side of the PC panel To form an integral support rib, the two ends of the support ribs are formed to have a continuous multi-slab structure by laying the steel beams (iron core) of both ends of the high information type to the PC beam and then constructing with the overlay concrete, such a multi-slab The resistance to the vertical lateral force is improved by more than 15% compared with the conventional one, and the structure is solid compared to the weight, and the improved resistance ability reduces the use of PC pillars compared to the existing long span construction area, other structural members and construction costs. Due to the shortening of the construction period, there is an effect of improving the economic performance, work productivity and structural resistance ability according to the construction.

Claims (2)

지하주차장 시공용 슬래브(PC Slab)에 있어서,In the underground parking lot slab (PC Slab), 패널(100)의 일측 면상에 대해 수직으로 돌출되는 다수개의 지지리브(200)에는 길이방향 양단부에 연속슬래브(양단고정보)를 구축하도록 일측단이 지지리브(200)의 내측으로 매입되고, 타측단이 지지리브(200)의 외측으로 분기되어 상향 절곡되도록 형성되는 강선(300)이;A plurality of support ribs 200 protruding perpendicularly to one surface of the panel 100 are embedded at one end of the support ribs 200 so as to form a continuous slab (both height information) at both ends in the longitudinal direction. Steel wire 300 is formed so that the side end is bent upwardly branched to the outside of the support rib 200; 더 구성되어 이루어진 것을 특징으로 하는 지하주차장 시공용 멀티슬래브.Underground parking lot construction multi-slab, characterized in that made more. 제 1항에서 있어서, 상기 강선(300)을 갖는 지지리브(200)는The support rib 200 of claim 1, wherein the support ribs 200 having the steel wires 300 are formed. 패널(100)의 일측 면상에 대해 2~5개가 등간격으로 돌출 형성되되, 상기 지지리브(200)는 패널(100)의 폭방향(L) 길이가 증가될수록 지지리브(200)의 돌출된 높이(h)는 설정된 비례값에 따라 증가되며, 상기 지지리브(200)의 구비 갯수도 증가되도록 구성되는 것을 특징으로 하는 지하주차장 시공용 멀티슬래브. 2 to 5 are formed at equal intervals with respect to one surface of the panel 100, and the support ribs 200 are protruded heights of the support ribs 200 as the length L of the panel 100 increases. (h) is increased according to a set proportional value, multislab for underground parking lot construction, characterized in that configured to increase the number of the support ribs 200.
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KR101184361B1 (en) 2009-02-13 2012-09-20 동국대학교 산학협력단 Dapped Ended PC hollow Core Slab and Construction Method Using the Same
KR101616483B1 (en) * 2014-11-17 2016-04-29 삼성물산(주) Construction Method Of Underground Parking Lot Using Precast Concrete Beam With Changing Cross Section
KR102120884B1 (en) * 2020-01-03 2020-06-09 백승철 The construction method of structure using RC wall and composite beam

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JPS5738019U (en) 1981-07-14 1982-03-01
JPH02261145A (en) * 1989-03-31 1990-10-23 Fujita Corp Method for setting girder and joist slub
JPH08239930A (en) * 1995-03-07 1996-09-17 Nippon Samikon Kk Precast concrete floor slab for parking area
JPH10110498A (en) 1996-10-07 1998-04-28 Taisei Corp Half-precast floor slab and construction method of hollow flat slab making use thereof
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101184361B1 (en) 2009-02-13 2012-09-20 동국대학교 산학협력단 Dapped Ended PC hollow Core Slab and Construction Method Using the Same
KR101616483B1 (en) * 2014-11-17 2016-04-29 삼성물산(주) Construction Method Of Underground Parking Lot Using Precast Concrete Beam With Changing Cross Section
KR102120884B1 (en) * 2020-01-03 2020-06-09 백승철 The construction method of structure using RC wall and composite beam

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