US 11,655,605 B2
FRP composite material pile prepared by FRP composite material and preparation and pile forming methods
Zhongling Zong, Lianyungang (CN); Kui Zhang, Lianyungang (CN); Haiyong Song, Lianyungang (CN); Qinghai Xie, Lianyungang (CN); Jianguo Zhu, Lianyungang (CN); Mingzhi Song, Lianyungang (CN); Liwei Zhu, Lianyungang (CN); and Zhiyi Lu, Lianyungang (CN)
Assigned to Jiangsu Ocean University, Lianyungang (CN)
Filed by Jiangsu Ocean University, Lianyungang (CN)
Filed on Jun. 19, 2021, as Appl. No. 17/352,254.
Claims priority of application No. 202011027852.1 (CN), filed on Sep. 26, 2020.
Prior Publication US 2022/0098814 A1, Mar. 31, 2022
Int. Cl. E02D 5/52 (2006.01); E02D 5/30 (2006.01); E04C 5/07 (2006.01)
CPC E02D 5/30 (2013.01) [E02D 5/526 (2013.01); E04C 5/073 (2013.01); E02D 2200/1685 (2013.01); E02D 2250/0023 (2013.01); E02D 2300/002 (2013.01); E02D 2300/0034 (2013.01); E02D 2300/0051 (2013.01); E02D 2600/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An FRP (Fiber Reinforce Plastic) composite material pile prepared by an FRP composite material, comprising: an FRP winding pipe, an FRP pultrusion hollow profile, and a connecting device, wherein
the FRP pultrusion hollow profile comprises an outer ring pipe, an inner ring pipe, and a plurality of reinforcing bars for connecting the outer ring pipe and the inner ring pipe; the shape of the cross section of the outer ring pipe is a circle or a square with chamfers; the FRP pultrusion hollow profile is pultruded at one time by pultrusion equipment, and fiber materials thereof are arranged in the longitudinal direction of the pipe;
the FRP winding pipe is provided with circumferential fiber materials by taking the FRP pultrusion hollow profile as a membrane, and forms a composite pipe section with the FRP pultrusion hollow profile;
the inner ring shape of the cross section of the FRP winding pipe is matched with the FRP pultrusion hollow profile;
the FRP connecting device comprises connecting plates, connecting bars, and key grooves; the outer ring shapes of the cross sections of the connecting plates are matched with composite pipe sections; the connecting bars are inserted into the connecting plates; key grooves matched with connecting pins and used for connecting are also formed in the connecting plates; the connecting pins are used for connecting two connecting plates through the key grooves, so that the connection of two composite pipe sections is realized; a plurality of the composite pipe sections are connected to form the FRP composite material pile.