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Switzerland
Lavoitobel Bridge
Project description
The iconic Lavoitobel Bridge, designed by the famous sculptor and architect Max Bill in collaboration with the structural engineer Mirko Robin Ros, is an historic arch bridge in the Swiss Alps and was constructed in 1966 and 1967. It spans the correspondent Lavoitobel valley and counts among Switzerland’s famous representatives for bridge construction.
After a detailed and preventative revision by the region’s Civil Engineering Department, the authority decided that this bridge does not cover today’s traffic requirements. Several maintenance works have hence been planned in order to assure future structural safety.
The entire renovation project comprised, amongst others, new bridge bearings as well improvements for its structural safety.
mageba scope
In order to verify that the adjusted structural design and load distribution operated as planned, the responsible engineers decided to install an automated structural health monitoring (SHM) system to monitor the forces acting on the new bearings.
The RESTON-POT bearings were equipped with pressure sensors on the elastomeric pad, enabling the force acting on each bearing to be readily calculated by the connected SHM system. In the event of any sudden or unexpectedly significant change in the force acting on a bearing, or in the load distribution among the different bearings, the system will provide an immediate alarm notification.
The SHM system installed externally with integrated solar panel and separate weather sensor
One of the vertically oriented bearings at one abutment, equipped with load cells
Key Data
Products: | ROBO-CONTROL permanent monitoring system, RESTON-POT bearings |
Features: | Pre-integrated sensors on the bearing‘s elastomeric pad |
Installed: | 2016 |
City: | Tamins (Canton Grisons) |
Structure: | Arch bridge |
Completion: | 1967 |
Length: | 200 m (main span 105 m) |
Owner: | Road Authority of Grisons |
Contractor: | Road Authority of Grisons |
Engineer: | Mirko Robin Roš |
Architect: | Max Bill |
