An ultra-high pier and small-radius curve beam four-hanging-point balanced erecting device and method

By using a four-point balancing erection device and flexible connections and electric adjusters to adjust the position of the lifting points in real time, the problem of stress imbalance under the traditional lifting point arrangement method is solved, and the stable hoisting and precise docking of ultra-high pier ultra-small radius curved beams are realized.

CN122406648APending Publication Date: 2026-07-17HEBEI LIANSHU HIGHWAY ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI LIANSHU HIGHWAY ENG CO LTD
Filing Date
2025-09-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional lifting point arrangements cannot dynamically offset the lateral forces caused by wind and airflow disturbances, resulting in overload of the inner lifting points and underload of the outer lifting points of the curved beam, leading to stress imbalance, increasing the risk of stress concentration in the beam, and making the lifting process unstable.

Method used

The four-point balancing erection device is adopted, which is a flexible connection structure consisting of main truss, steel frame support, front support transverse track, load-bearing support, connecting arm, docking plate, support foot device, and anti-seismic damping spring. The position and force of the lifting points are adjusted in real time through electric adjusters and traction extension columns to counteract wind and airflow disturbances and ensure the stability of the beam.

Benefits of technology

It effectively disperses local stress in the beam, prevents cracking and lifting tool breakage, enhances overturning resistance, reduces safety hazards, ensures the stability and precision of the lifting process, and reduces the cost of secondary rectification of the project.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122406648A_ABST
    Figure CN122406648A_ABST
Patent Text Reader

Abstract

The application belongs to the technical field of super-high pier bridges, in particular to a super-high pier extremely small radius curve beam four-hoisting-point balance erecting device and method, which comprises a main truss beam frame, the lower surface bottom end of the main truss beam frame is provided with a steel frame support pad, the upper surface of the steel frame support pad is slidably connected with a front support horizontal moving track, the front support horizontal moving track is composed of two horizontal rods and two vertical rods, can adapt to the gravity center offset characteristics of the curve beam in real time, avoids the problems of overload of the side hoisting point and underload of the outer side hoisting point caused by the traditional symmetrical hoisting point, effectively disperses the local stress of the beam body, prevents the structural damage risks such as cracking of the beam body and breaking of the lifting appliance, meanwhile, the double support system composed of the main support foot and the auxiliary support foot greatly improves the anti-overturning capacity, can resist the transverse overturning force in the vertical hoisting of the super-high pier, reduces the safety hazards of the beam body tilting and falling, and the anti-seismic damping spring and the anti-seismic back pressure spring can efficiently absorb the vibration energy generated by the wind force, airflow disturbance and hoisting impact.
Need to check novelty before this filing date? Find Prior Art