During the recent strong earthquake in the Philippines, a critical building equipped with our high-performance lead rubber bearings and building seismic isolation bearings remained completely undamaged. Learn how building and bridge seismic bearings protect life line infrastructure.

How Temperature Changes Affect High Damping Rubber Bearings – A Simple Comparison Based on EN15129 and GB/T 20688.1 Abstract High Damping Rubber Bearings (HDRB) are widely used in bridges and buildings to resist earthquakes. Most standard tests, such as EN15129 and GB/T 20688.1

Water tightness testing on large-diameter pipelines—especially those above 1500 mm—faces two critical challenges. First, maintaining a stable seal across a wide diameter range. Second, withstanding high hydrostatic backpressure without blowout or leakage.

High Damping Rubber Bearings (HDRB) are seismic isolation devices that provide stable energy dissipation capacity without the need for a lead core. This article systematically introduces the working principle, mechanical characteristics, and design process of HDRB from an engineering perspective,