公开(公告)号：US20190048602A1

公开(公告)日：2019-02-14

申请号：US16078599

申请日：2017-03-30

申请人： SOUTHEAST UNIVERSITY

发明人： Gang WU ,  Xinghua LI

IPC分类号： E04G23/02

摘要： An automatic tensioning system for strengthening a beam, a slab and a column by a pre-stressed FRP plate comprises a tensioning end anchor (1), a fixed end anchor (10), and a tensioning bracket (3) connected to the tensioning end anchor (1). A centre-hole jack (16) is provided in the middle of the tensioning bracket (3), a threaded rod (8) passes through the tensioning bracket (3) and is then connected to the centre-hole jack (16), and an upper toothed nut (13) and a lower toothed nut (19) respectively driven by a driving mechanism are provided on two sides of the tensioning bracket (3) on the threaded rod (8). A binary clip-type fixture (4) is further comprised, an upper surface thereof is provided with a cylinder (6), and a sleeve (7) nested outside the cylinder (6) is connected to the threaded rod (8).

公开(公告)号：US20180305929A1

公开(公告)日：2018-10-25

申请号：US15769771

申请日：2017-03-30

申请人： SOUTHEAST UNIVERSITY

发明人： Zeyang SUN ,  Gang WU

IPC分类号： E04C3/36 ,  E04C5/06 ,  E04C5/04 ,  E04H9/02 ,  E04G23/02

CPC分类号： E04C3/36 ,  E01D19/02 ,  E01D22/00 ,  E04B1/30 ,  E04B2103/02 ,  E04B2103/06 ,  E04C3/34 ,  E04C5/015 ,  E04C5/04 ,  E04C5/0618 ,  E04C5/0622 ,  E04G23/02 ,  E04G23/0218 ,  E04G2023/0251 ,  E04H9/024 ,  E04H9/025

摘要： A steel-fiber reinforced polymer (FRP) composite material reinforced concrete column comprises an inner steel pipe arranged in the center, wherein the inner steel pipe is internally provided with an unbonded steel strand; the outside of the inner steel pipe is provided with an outer steel pipe, concrete is poured between the inner steel pipe and the outer steel pipe, a plurality of additional small steel pipes are evenly arranged outside the outer steel pipe, and each of the additional small steel pipes is internally provided with an additional unbonded steel strand. A composite bar cage coaxial with the outer steel pipe and arranged on the outside thereof is also provided, wherein both the outer steel pipe and the composite bar cage are covered by high-ductility concrete, and at a core area, the outside of the high-ductility concrete is wrapped with an anti-spalling layer.