Patent ID: 11926976
Assignee: HENGQIN GONGE TECHNOLOGY CO., LTD.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 9:
10. A precast segmental pier reinforced with both fiber reinforced polymer (FRP) bars and steel bars, comprising a footing, a segmental pier, longitudinal bars and unbonded post-tensioned tendons, characterized in that: the segmental pier is comprised of two or more precast segments, the longitudinal bars are comprised of both the FRP bar and the steel bar, connecting the footing and the segmental pier together with unbonded post-tensioned tendons to form an entire pier; the steel bar and the high-strength steel bar only pass through several precast segments of the lower part of the segmental pier, and are not arranged along the entire pier, wherein the cross-section of the precast segmental pier is a rectangular thin-walled hollow section, the four corners of the cross-section are provided with the corrugated ducts using circular metal corrugated pipes, and the rest are provided with the corrugated ducts using flat metal corrugated pipes; only one FRP bar is placed in each circular corrugated ducts, and both a FRP bar and a steel bar are placed in each flat corrugated ducts.