A PRC pipe pile equal strength joint device
By using a combination structure of pipe pile sleeve, Z-shaped steel bar and steel plate at the pipe pile joint, the problems of brittle failure and joint defects of prestressed high-strength concrete pipe piles in foundation pit support structures are solved, achieving efficient load transfer and reducing labor intensity, thus expanding the application range.
CN224338223UActive Publication Date: 2026-06-09GUANGZHOU CONSTR ENG SUPERVISION CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU CONSTR ENG SUPERVISION CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
Existing prestressed high-strength concrete pipe piles suffer from brittle failure and joint defects in foundation pit support structures, which limits their application scope. Furthermore, traditional jointing processes are labor-intensive and inefficient.
Method used
The system employs a combined structure of pipe pile sleeves, Z-shaped reinforcing bars, and steel plates. Through welding and movable lap joints, it achieves smooth load transfer, compensates for brittle fracture at the joints, and improves work efficiency.
Benefits of technology
It effectively avoids brittle failure of prestressed steel bars, enhances the strength of joints, reduces labor intensity, and expands the application range of precast pipe piles.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224338223U_ABST
Abstract
This utility model discloses an equal-strength joint device for PRC pipe piles, including a pipe pile sleeve, a Z-shaped reinforcing bar, a steel plate, and a pipe pile body. An end plate is provided at the end of the pipe pile body. When two adjacent pipe pile bodies are connected, the end plates are welded together. The pipe pile sleeve is fitted onto the outer wall of the connection point between two adjacent pipe pile bodies, and the pipe pile sleeve is welded to the end plate. One end of the Z-shaped reinforcing bar is welded to the inner wall of the pipe pile sleeve, and the other end of the Z-shaped reinforcing bar is movably lapped with ordinary reinforcing bars inside the pipe pile body. The steel plate is welded to the outer wall of the pipe pile sleeve. This utility model can avoid brittle fracture of prestressed reinforcing bars, compensate for defects in the joint, improve work efficiency, reduce labor intensity, and expand the application range of precast pipe piles.
Need to check novelty before this filing date? Find Prior Art