The Hong Kong-Zhuhai-Macao Cross-sea Bridge adopts the assembly technology of prefabricated caps and pier sections, and the bridge vibration isolation technology (OVM) prestressed large-diameter high-strength threaded steel bar anchoring technology is the key technology for the assembly of the segments. That is, the bridge beam body is divided into several sections, which are transported to the bridge position for assembly after prefabricated by the factory, and the entire assembly of the sections is assembled into the bridge by prestressing. OVM is an isolation device between the upper structure and the lower structure or foundation of the bridge. Isolation supports and dampers are commonly used to increase the period and / or damping of the original structure system and reduce the seismic response of the structure or Reduce the energy input to the superstructure to achieve the expected seismic fortification requirements.
At the beginning of the design of the Hong Kong-Zhuhai-Macao Bridge, according to the requirements of special working conditions, the bridge was required to withstand typhoons above level 16, which is the most stringent domestic bridge project against wind. After much debugging, it was finally decided to use two types of bearings, which are independently developed and produced by LZDF Engineering Rubber Products Co., Ltd., which are lead-isolated rubber bearings and high-damped isolation rubber bearings.
LZDF Engineering Rubber Products Co., Ltd.
Products
Bridge bearing
Observable waterproof support
Intelligent basin support
LKQZ type anti-tension ball bearing
JKQZ type shock absorption anti-pull ball bearing
QZ Bridge Spherical Bearing
DFKZ type anti-vibration basin support
GPZ type highway bridge basin support
Ordinary plate rubber bearing
Bridge expansion device
Prestressed multi-directional displacement telescopic device
Comb plate type telescopic device
Modular telescopic device
Single-slit telescopic device
Rubber plate telescopic device
Bridge vibration isolation
Horizontal force dispersion type vibration isolation rubber bearing
Ultra-high damping isolation rubber bearing
High-damping isolation rubber bearing
Lead core vibration isolation rubber bearing
Mild steel damper
NDQZ nonlinear damping shock absorber isolation spherical steel bearing
Shock-absorbing ball bearing with friction pendulum
Double-curved shock-absorbing isolation spherical bearing
Building vibration isolation
Mild steel damper
Anti-buckling support device
Viscous damper for construction
Anti-pull device
Building isolation rubber bearings
QPZ type tensile bearing
Other products
Special support for linear swing cast steel monorail
Weather-resistant long-acting special support for light rail
Intelligent viscous fluid damper
Permanent magnet adjustment type magnetorheological damper
Viscous fluid damper