CONSTRUCTION METHOD OF UNDERGROUND PARKING LOT USING PRECAST CONCRETE BEAM WITH CHANGING CROSS SECTION

The present invention relates to a method to construct an underground parking lot using PC tapered beams used in a parking lot consisting of a one-directional slab system. The tapered PC beam is formed to have a tapered part whose sectional dimension is changed in such a way that both ends of the ta...

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Bibliographic Details
Main Authors KIM, YONG NAM, KIM, KI DONG, HAM, MYUNG GYUN, LEE, GANG CHUL
Format Patent
LanguageEnglish
Korean
Published 29.04.2016
Subjects
BUILDING
BUILDING MATERIALS
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
STRUCTURAL ELEMENTS
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:The present invention relates to a method to construct an underground parking lot using PC tapered beams used in a parking lot consisting of a one-directional slab system. The tapered PC beam is formed to have a tapered part whose sectional dimension is changed in such a way that both ends of the tapered PC beam have a deeper beam than a central part of the PC tapered beam; a steel wire is placed therein to apply prestressing; and a parking facility passes through a lower part of the central part. The present invention comprises: a first step of installing a plurality of PC columns on the planned location; a second step of installing both ends of the tapered PC beam between the PC column to be fixated; a third step of installing a plurality of supports on a lower portion of the tapered PC beam; and a fourth step of installing PC slabs between the tapered PC beams facing each other, and casting and curing of a topping concrete. 본 발명은 1방향 슬래브 시스템으로 이루어진 지하주차장에 이용되는 변단면PC보에서, 상기 변단면PC보는 양 단부측이 중앙부측에 비해 춤이 깊어지도록 단면 치수가 변경되는 변단면부를 갖도록 형성되고, 내부에 강선이 배치되어 프리스트레싱이 가해지며, 상기 중앙부측 하부로 설비시설이 지나가는 것을 특징으로 한다. 또한 본 발명은 변단면PC보를 이용한 지하주차장 시공방법에서, 계획된 위치에 PC기둥을 다수 개 설치하는 제1단계; 상기 PC기둥 사이에 상기 변단면PC보의 양단이 고정되도록 설치하는 제2단계; 상기 변단면PC보의 하부에 복수 개의 서포트를 설치하는 제3단계; 및, 대면하는 상기 변단면PC보 사이에 PC슬래브를 설치하고 덧침콘크리트를 타설 및 양생하는 제4단계;를 포함하여 구성되는 것을 특징으로 한다.
Bibliography:Application Number: KR20140160036