PRECAST-CONCRETE STAIRWAY ROOM CONSTRUCTION METHOD

WIPO Patent Application WO/2023/085629

A1

The present invention relates to a precast-concrete stairway room construction method for constructing a stairway room with one coupling operation by manufacturing the stairway room to have a structure formed by vertically dividing the stairway room into left and right sides, wherein the construction method comprises: a mold preparing step (S10) in which a first mold and a second mold are prepared; a rebar arranging step (S20) in which rebars are arranged in the prepared first and second molds; a concrete placing and curing step (S30) in which concrete is placed and cured in the first mold and the second mold; a divided structure manufacturing step (S40) in which a first divided structure and a second divided structure formed in the first mold and the second mold are removed to finish the manufacturing of the first divided structure and the second divided structure; a structure attaching step (S50) in which the first divided structure and the second divided structure are made to come into close contact with each other; and a structure bonding step (S60) in which the first divided structure and the second divided structure that are in close contact with each other are bonded to each other.

WO/2023/070167	MODULAR STAIRCASE
JP3421298	INTERNAL STAIRWAY FOR BUILDING, AND BUILDING METHOD THEREFOR
WO/2008/090462	DOUBLE-STRUCTURE STAIR

CHO YEONG CHEOL (KR)
YOO CHANG JUN (KR)
KIM MI JA (KR)

PCT/KR2022/015860

May 19, 2023

October 18, 2022

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CHO YEONG CHEOL (KR)
YOO CHANG JUN (KR)
KIM MI JA (KR)

E04F11/035; E04B1/34; E04F11/02

KR102304397B1	2021-09-23
KR101054450B1	2011-08-05
KR20040014678A	2004-02-18
KR102079703B1	2020-02-20
KR101203190B1	2012-11-19

KIM, Yeong Il (KR)

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