公开(公告)号：US11155989B1

公开(公告)日：2021-10-26

申请号：US17234827

申请日：2021-04-20

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Ben Mou ,  Zuquan Jin ,  Wanqiu Zhou ,  Wenfeng Liu ,  Tao Yu

IPC: E04B1/24 ,  E04B1/30

Abstract: A double-steel tube concrete beam-column joint with internal FRP bar connectors is provided. The double-steel tube concrete beam-column joint includes double-steel tube columns, I-beams, a joint connector, an internal support member and external ring plates. Each double-steel tube column includes an internal steel tube and an external steel tube. The joint connector includes an internal connecting tube and an external connecting sleeve which are both circular steel tubes. The internal support member is a columnar structure and has two ends regularly formed with bolt holes in a circumferential direction. Each external ring plate comprises a horizontal portion and an annular portion perpendicular to the horizontal portion. Upper and lower double-steel tube columns are connected through the joint connector and the internal support member, the two ends of the internal support member are inserted into an upper internal steel tube and a lower internal steel tube, respectively.