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Earthquake-resistance Rubber Bearing
ERB.pdf
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As civil engineering technology and rubber manufacturing technology advance, very economical and functional elastomeric bearings become essential items for bridge construction and find various applications in bridges.

As the range of application of elastomeric bearings is widened, some problems have emerged. The elastomeric rubber pad that is responsible for structural movement is simply inserted between the upper and lower plate and as a result the elastomeric pad tends to slide between the upper and lower plates. To compensate for the problems of the existing elastomeric bearing, we have developed an Earthquake-resistance Rubber Bearing(ERB) that can support a safer and better function as a bearing.












This Earthquake-resistance Rubber Bearing(ERB) resolves the structural problems of a separated elastomeric bearing. Since the upper/lower plates and the elastomeric rubber pads are integrated, it shows sufficient safety for frequent movements and aseismatic performance














By configuring one row of wedges for an Earthquake-resistance Rubber Bearing(ERB), you can save the sizes and the manufacturing costs






In general, alien substances and water accumulate in the bottom of the bearing and they frequently cause corrosion of the steel plate. To resolve the problem, synthetic rubber is molded (with added sulfur) to this Earthquake-resistance Rubber Bearing(ERB) to prevent corrosion durability.








During earthquakes, the wedges of the upper/lower plates are removed and the elastomeric pad is damaged as a result. To resolve this problem, the wedge to the lower plate is fastened with bolts. Even if shearing deformation occurs during an earthquake and the wedge is damaged as a result, the elastomeric rubber is still able to operate normally. Perfect a seismic performance is achieved.



- Comparisons between existing Earthquake-resistance Rubber Bearing and the

  Earthquake-resistance Rubber Bearing in terms of contact points.