Top-down construction method using an elevating movable truss body

In accordance with the present invention, disclosed is a top-down construction method using a liftable truss body. In accordance with the present invention, in regard to the construction of a slab of an underground structure, a horizontal bar including a slab mold and cross-connected with a vertical...

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Bibliographic Details
Main Authors KOO BON MIN, CHOI, DONG MYUNG, CHOI, JONG BAE
Format Patent
LanguageEnglish
Korean
Published 09.02.2022
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Summary:In accordance with the present invention, disclosed is a top-down construction method using a liftable truss body. In accordance with the present invention, in regard to the construction of a slab of an underground structure, a horizontal bar including a slab mold and cross-connected with a vertical beam can be easily and simply dropped through a vertical support body, and, moreover, the dropped horizontal bar can be substantially fixed to the vertical support bar and a horizontal support bar with respect to the vertical beam, and, thus, slab construction work for each floor can be facilitated during slab construction for a basement floor, which can lead to a reduction in working hours as well as a considerable reduction in working costs. Also, the horizontal bar is enabled to be kept pushed toward a waling part of a retaining wall to substantially support the horizontal bar and the slab mold during concrete placement. Also, a truss body is dropped in the same form to be reinstalled and fixed and the concrete is placed to build the slab, and, thus, construction time can be significantly shortened and the collapse of the truss body can be prevented during the concrete placement for the construction of the slab due to substantial supportability with an underground wall, and a reduction in construction time and construction costs can be acquired. 본 발명은 지하구축물의 슬라브를 시공함에 있어서 슬라브거푸집이 구비되고 수직빔에 대해 크로스 교차 연결된 수평바를 수직지지체에 의해 쉽고 간단하게 하강시킬 수 있을 뿐만 아니라 하강된 수평바를 수직빔에 대해 수직지지체와 수평지지체로 견고하게 고정할 수 있음에 따라, 지하층에 대한 슬라브 구축시에 각 층의 슬라브 구축시공작업이 용이하게 이루어질 수 있어 작업시간의 단축은 물론 작업비용을 크게 절감할 수 있으며, 유압자키에 의해 수평바가 흙막이벽체의 띠장부측으로 밀리는 상태가 유지될 수 있어 콘크리트 타설 중 수평바 및 슬라브거푸집을 견고하게 지지할 수 있으며, 트러스체를 그대로 하강시켜 재 설치 고정하고 콘크리트를 타설하여 슬라브를 구축할 수 있기 때문에 시공시간을 크게 단축할 수 있으며 지하벽체와의 견고한 지지성에 의해 슬라브 구축을 위한 콘크리트 타설 도중 트러스체가 붕괴되는 것을 방지할 수 있으며 시공시간의 단축과 시공비용의 절감 효과를 얻을 수 있는 승하강 이동식 트러스체를 이용한 탑다운공법이 개시된다.
Bibliography:Application Number: KR20210020876