Ohio: when the formwork high-technical gain height

A cable-stayed bridge of 762 m length is currently under construction on the Ohio River "East End Crossing" in Louisville in the United States. For its implementation, a solution of shoring and climbing formwork for complex pylons is provided by the company Peri.

The construction will aim to link the states of Kentucky and Indiana. The main bridge span is 365 m. The pavement is supported through the stays cable, with two pylons of 90 m height. The hinge bars of the lower pylons, inclined outwards, are of passive design. In the upper part, they are inclined inwardly and have a box-like cross-section. The sections are being progressively eliminated upwardly and a slight bend generates a constant inclination variation of a concreting phase to another. Two cross beams of 3.65 m thick, are also made of poured in place concrete.

A project team of the Peri company has designed and delivered a complete solution based on several standard systems of formwork and scaffolding, including the Vario GT24, the self-climbing formwork of ACS and RCS, the climbing system SCS one side, VARIOKIT shoring and the Peri UP scaffolding . The materials have been adapted to each other, while providing rapid sequences, the high bearing capacity and maximum safety. They have therefore enabled to realize two complex configurations bridge pylons with the imposed deadlines, while maintaining dimensional tolerances.