Temporary cable force monitoring techniques during bridge construction-phase: the Tajo River Viaduct experience

This article deals with the comparative analysis of current cable force monitoring techniques. In addition, the experience of three cable stress monitoring techniques during the construction phase is included: (a) the installation of load cells on the active anchorages of the cables, (b) the installation of unidirectional strain gauges, and (c) the evaluation of stresses in cables applying the vibrating wire technique by means of the installation of accelerometers. The main advantages and disadvantages of each technique analysed are highlighted in the Construction Process context of the Tajo Viaduct, one of the most singular viaducts recently built in Spain.

Automated summary

This article presents a comparative analysis of current cable force monitoring techniques. It also includes the experience of three cable stress monitoring techniques during the construction phase, namely the installation of load cells, unidirectional strain gauges, and the vibrating wire technique with accelerometers. The advantages and disadvantages of each technique are highlighted in the context of the construction process of the Tajo Viaduct, one of the most unique viaducts recently built in Spain.