摘要:
The present invention provides a structure for enhancing a shearing force of a hollow slab and the unity with topping concrete by using a shearing force reinforcing rebar. The present invention includes: a hollow slab which is made of a precast concrete slab, is penetrated in the longitudinal direction, and has one or more hollow gaps formed in the width direction; a lower plate which is connected to the lower end of a spacing gap formed by arranging the hollow slab and another adjacent hollow slab in the width direction; and the shearing force reinforcing rebar which is installed by being attached to the upper part of the lower plate. The lower plate is connected in the longitudinal direction of the hollow slab between adjacent hollow slabs, and the topping concrete is poured onto the upper part of the hollow slab after installing the lower plate where the shearing force reinforcing rebar is attached.
摘要:
PURPOSE: A multi ribbed PC slab capable of omitting a temporary supporting post is provided to prevent the leak of concrete in the pouring of topping concrete. CONSTITUTION: A multi ribbed PC slab comprises a top plate(11), a slope base plate(12), and a plurality of ribs(13). The slope base plate is downward expanded from both side end point of the top plate. A plurality of ribs is integrally formed on the lower-part of the top plate.
摘要:
본 발명은 전단성능이 향상된 경량형 이축 중공슬래브 및 그 시공방법에 대한 것으로, 더욱 상세하게는 슬래브 하부근; 상기 슬래브 하부근 상부에 설치되는 것으로, 가로 방향 및 세로 방향으로 각각 일정 간격 이격되어 설치되는 복수 개의 중공체; 및, 상기 중공체 상부에 배근되는 슬래브 상부근; 으로 이루어지는 철근콘크리트 중공슬래브에 있어서, 상기 각각의 중공체는 X형으로 교차되는 한 쌍의 사각 전단보조근 내부에 위치되는 것을 특징으로 하는 전단성능이 향상된 경량형 이축 중공슬래브 및 그 시공방법에 대한 것이다. 본 발명의 중공체는 일정 두께를 가진 구 형상의 플라스틱 외피부; 및, 상기 외피부 내부에 위치하되, 일정 두께를 갖는 충격음 저감재로 이루어진 내피부; 로 이루어진다. 본 발명을 이용하는 경우 별도의 추가 보강 없이 이방향 중공슬래브의 전단저항 성능이 향상되며, 플라스틱 외피부와 바닥충격음 저감재의 내피부로 이루어진 복합재료를 중공체로 사용함으로써 경량충격음에 대한 저항 성능이 향상된다. 중공슬래브, 전단, 이축, 콘크리트
摘要:
The present invention relates to a horizontal member system using a structure between long spans, which comprises an assembly type precast concrete member, and a depositing part. The assembly type precast concrete member comprises: a bottom flange having a constant-shaped section, in which a plurality of first penetration holes is formed to be separated at regular distance intervals in a transverse direction vertically with regard to a longitudinal direction; and/or a abdomen formed on the bottom flange when the bottom flange is formed, and having a constant-shaped section, in which a plurality of second penetration holes is formed to be separated at regular distance intervals in a transverse direction vertically with regard to a longitudinal direction; and a top flange coupled on the bottom flange or the abdomen, and having a constant-shaped section, in which a plurality of third penetration holes is formed to be separated at regular distance intervals in a transverse direction vertically with regard to a longitudinal direction, and the depositing part being formed by depositing a topping concrete on the assembly type precast concrete member. The bottom flange, the abdomen and the top flange of the assembly type precast concrete member are separately manufactured using a precast concrete method, the first, second and third penetrating holes of the assembly type precast concrete member is formed in an area of corresponding with each other to be seen as one hole when viewed from above at the time of coupling the top and bottom flanges and the abdomen of the assembly type precast concrete member. Moreover, after a bolt is inserted by penetrating in the top and bottom flanges and the bottom flange and the first, second and third penetrating holes in the abdomen, and is fixed with a nut, the abdomen and the top flange are pressing-coupled to one another.
摘要:
본 발명은 프리캐스트 콘크리트로 제작되며 길이방향으로 관통되고 폭 방향으로 적어도 하나 이상의 중공을 갖으며, 상기 중공을 회피하여 다수 개의 강연선이 배치되는 중공슬래브; 상기 중공슬래브와 인접한 중공슬래브가 너비방향으로 배치되어 형성된 중공슬래브 상호간의 이격된 공간 하단에 연결되고, 양단부가 갈고리 모양으로 형성된 갈고리부가 구비되는 하부판재; 및, 상기 하부판재의 상부에 부착되어 설치되는 전단보강용 철근;을 포함하여 구성되되, 상기 하부판재는 철판 또는 PC판재로 이루어지고, 인접한 중공슬래브 사이에 중공슬래브의 길이방향으로 연속되게 연결되며, 상기 전단보강용 철근이 부착된 상기 하부판재가 설치된 후 상기 중공슬래브 상부에 덧침 콘크리트가 타설되고, 상기 갈고리부는 양측에 위치된 중공슬래브 하단의 절곡된 부분에 양단이 걸쳐져 설치되는 것을 특징으로 한다.
摘要:
The present invention relates to a system mold for manufacturing an assembly-type PC member and a PC member manufacturing method using same. The system mold for manufacturing an assembly-type PC member according to the present invention, which is disposed to manufacture a web of a PC member that is configured to have a lower flange formed through rebar arrangement and concrete placement and the web coupled on the lower flange, includes a pair of side surface members that are disposed apart from each other on both longitudinal-direction base member sides on a pre-manufactured base member which corresponds to the lower flange, one L-shaped end portion being configured to vertically extend outside and multiple insertion grooves being formed at regular intervals in a longitudinal direction inside a part abutting vertically against the base member; and a pair of end portion finishing members that are disposed between the pair of side surface members and are configured to have T-shaped cross sections, both side surfaces of a vertical part being inserted into the insertion grooves of the pair of side surface members and a horizontal part being hung on a horizontal plane of the pair of side surface members so that both sides of the pair of side surface members are closed. The web of the PC member is formed after concrete placement between the pair of side surface members where the pair of end portion finishing members are disposed.
摘要:
A box for parcel delivery service is disclosed. The box for parcel delivery service comprises: a box body provided with an internal space having the upper side opened; a cover for opening and closing the upper side of the internal space of the box body; a storage unit provided with a storage support formed for securing a storage space whose size is controllable corresponding to the size of a delivered parcel by being arranged to be fitted into the internal space so that the position is controlled in the direction of the gap widened or narrowed by a slide operation inside the box body; a cooling agent which is arranged on the side of the storage support of the storage unit for forming the cooling atmosphere inside the storage space; and a position controlling means which is arranged inside the box body and expanded by being injected with gas for controlling the positions of the storage supports for filling an unused space to be insulated.
摘要:
본 발명은 별도의 내화뿜칠없이 사전에 내화성능을 가지도록 제작된 내화철골에서, 상부플랜지(120), 웨브(140) 및 하부플랜지(160)로 구성된 철골(100); 상기 상부플랜지(120), 웨브(140) 및 하부플랜지(160)에 접합된 다수개의 스터드(200); 상기 철골(100) 주위에 배근되는 와이어메쉬(WM1, WM2); 상기 철골(100) 주위에 타설 양생된 고강도 내화 콘크리트(FPM); 및, 상기 철골(100)의 하단에 타설 양생된 고강도 내화 콘크리트(FPM)의 외부를 감싸도록 설치되는 체크플레이트(CP);를 포함하여 구성되되, 상기 체크플레이트(CP)는 제작시 거푸집 역할을 하고, 현장시공 후 철골(100)에 작용하는 인장력에 대응하는 인장보강재의 역할과 상기 고강도 내화 콘크리트(FPM)의 균열을 방지하는 역할을 하는 것을 특징으로 하는 고강도 내화 콘크리트 일체형 내화철골을 제공한다. 또한 상기 고강도 내화 콘크리트(FPM)는 물 173(kg/㎥), 시멘트 463(kg/㎥), 플라이애쉬 52(kg/㎥), 잔골재 858(kg/㎥), 굵은골재 782(kg/㎥), 혼화재 7.21(kg/㎥) 인 것을 특징으로 하는 고강도 내화 콘크리트 일체형 내화철골을 제공한다.