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MAURER supplies expansion joints, bearings, and dampers for bridge and viaduct projects. One of MAURER’s global projects in this area is the road bridge in Italy over the Taro River, connecting the Verona and Parma regions.

Let’s note the three key aspects considered by Maurer when designing products for this project. First, the bridge is 2 km long and spans the Taro River. Second, the bridge has an arch shape. Third, the entire structure should be earthquake resistant.

According to these aspects, Maurer supplied 92 pendulum bearings and 6 modular expansion joints. The SIP (Sliding Isolation Pendulum) bearings were chosen.

The four main functions of the SIP bearings are:

  • The bearings transmit vertical loads.
  • The sliding plate ensures horizontal displacements during earthquakes.
  • The bearings separate the bridge from the main part and ensure isolation.
  • The bearings return the bridge to its original position after earthquakes.
The bearings come in various sizes, with a diameter reaching 1,600 mm. After the bearings, 6 modular expansion joints were installed. The expansion joints ensure a standard displacement of 280 mm. During earthquakes, this displacement can reach 450 mm.
The project also includes 14 small bridges connected to the main one. For these 14 bridges, Maurer also supplied 324 lead-rubber bearings, 20 spherical bearings, and 36 expansion joints.


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