US 12,129,653 B2
Variable assembly PC member
Thomas Hyun Koo Kang, Seoul (KR); and Keun Sam Kim, Seoul (KR)
Assigned to Seoul National University R&DB Foundation, Seoul (KR); and EURO ENGINEERING CO., LTD., Seoul (KR)
Filed by Seoul National University R&DB Foundation, Seoul (KR); and EURO ENGINEERING CO., LTD., Seoul (KR)
Filed on Aug. 3, 2022, as Appl. No. 17/880,600.
Application 17/880,600 is a continuation in part of application No. PCT/KR2021/002374, filed on Feb. 25, 2021.
Application 17/880,600 is a continuation in part of application No. PCT/KR2021/001146, filed on Jan. 28, 2021.
Claims priority of application No. 10-2020-0014280 (KR), filed on Feb. 6, 2020; and application No. 10-2020-0054598 (KR), filed on May 7, 2020.
Prior Publication US 2023/0003024 A1, Jan. 5, 2023
Int. Cl. E04C 5/065 (2006.01); E04B 1/21 (2006.01); E04C 5/16 (2006.01)
CPC E04C 5/0653 (2013.01) [E04B 1/215 (2013.01); E04C 5/163 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A variable assembly precast concrete (PC) member comprising:
a plurality of hollow PC modules, each hollow PC module which has an upper flange and a lower flange spaced apart from each other, and a pair of webs connecting both ends of the upper flange and the lower flange to form a hollow therein; and
connectors connecting the plurality of hollow PC modules with each other in the width direction,
wherein a plurality of steel bars are provided on the upper flange and the lower flange of the hollow PC module in the width direction of the hollow PC module, and the connectors connect the steel bars of the neighboring hollow PC modules with each other, and
wherein each connector comprises:
a coupler coupled to an end portion of one side of each steel bar;
a headed bar of which one end is coupled to the coupler and another end has an expanded head;
a socket of which one end is coupled to an end portion of another side of the steel bar and another end has a receiving space for receiving the expanded head of the headed bar; and a
fixing cap coupled to the receiving space of the socket to press the expanded head of the headed bar.