Bridge Jacking and Lifting FAQ: Common Issues, Causes and Practical Solutions

发布于 2026-10-15

Hengshui Zhanhe Engineering Rubber Co., Ltd. supplies bridge jacking and lifting and related engineering rubber products to contractors, distributors and infrastructure projects worldwide. Bridge jacking uses synchronized hydraulic jacks to lift a superstructure, mainly for bearing replacement, pier strengthening, elevation adjustment and bridge retrofit.

This article explains the working principle, main types, typical applications, installation points, selection criteria, standards and frequently asked questions about bridge jacking and lifting, and is intended for engineers, purchasers and project managers.

1. What Is Bridge Jacking and Lifting?

Bridge jacking uses synchronized hydraulic jacks to lift a superstructure, mainly for bearing replacement, pier strengthening, elevation adjustment and bridge retrofit.

Working principle: Multiple hydraulic jacks load proportionally under computer control so the beam rises evenly, with displacement and stress monitored throughout.

2. Main Types

• Overall synchronized lifting: Whole bridge or multiple spans lifted together
• Local pier jacking: Local lift for single-pier bearing replacement

3. Typical Applications

• Lifting for replacement of aged plate or pot bearings.
• Elevation recovery after pier settlement.
• Retrofit works such as adding bearings or changing structural systems.

4. Installation and Construction Points

1. Prepare a special method statement with structural verification.
2. Install the jacking system, calibrate sensors and run trial lifting.
3. Lift in synchronized stages with temporary supports added continuously.
4. Complete bearing replacement or strengthening, then lower in stages.

5. Selection Guide

• Confirm the design displacement, load grade and service environment before ordering.
• Select material grade according to temperature range, medium and durability requirements.
• Provide drawings or a specification list so that the manufacturer can verify sizes.

6. Standards and Quality Control

Bridge Jacking and Lifting is manufactured and inspected according to applicable national and industry standards. Hengshui Zhanhe Engineering Rubber Co., Ltd. carries out batch inspection before delivery, and inspection certificates together with third-party test reports (where required by the project) can be provided.

Typical standards applied to this product family include Chinese national and transportation industry standards; equivalent international standards can be referenced upon request.

7. FAQ

Q: Will jacking damage the beam?

A: With a proper method statement and monitoring, forces stay within control; poor schemes may induce secondary internal forces.

Q: Is traffic interruption needed?

A: Usually load restriction or closure is required as per the plan and traffic authority.

8. Price Factors

Priced per lifting point and span according to jack count, height, control requirements and traffic management.

Packing: standard export packing (woven bags, pallets or wooden cases). Delivery terms: EXW, FOB, CFR, CIF or DAP as agreed. Payment terms: T/T, L/C or other terms subject to negotiation.

9. Why Work With Hengshui Zhanhe Engineering Rubber Co., Ltd.

• Manufacturer based in Hengshui, Hebei — the engineering rubber industry cluster in North China, with in-house production and inspection.
• OEM and ODM supported: sizes, hardness, profiles and packaging can be customized to project or market requirements.
• Batch inspection before shipment; certificates of conformity and third-party test reports available when required.
• Technical support for selection, shop drawings and installation guidance, with export packing and worldwide logistics arrangement.

10. Contact and Quotation

For specification sheets, samples, pricing or project support, please contact Hengshui Zhanhe Engineering Rubber Co., Ltd.. Email: 150051331@qq.com · Tel/WhatsApp: +86-13833886677 · Factory: No.168, Zhangtuantuo Village, Dengzhuang Town, Taocheng District, Hengshui, Hebei, China. We reply to export enquiries within 24 hours on working days.