A collaboration formed by engineers and architects Petr Tej, Marek Blank and Jan Mourek has resulted in the creation of a footbridge in Lužec nad Vltavou made of a new high-performance cement composite material called UHPFRC class C110 / 130.
The towns of Lužec nad Vltavou and Bukol in the Czech Republic were finally connected via a footbridge that was built with a new high-performance cement composite material called UHPFRC class C110 / 130 developed at the Klokner Institute of the Czech Technical University in Prague. The bridge was created by a collective of engineers and architects composed of Petr Tej ( architect and bridge engineer), Marek Blank (architect) and Jan Mourek (bridge engineer). The group – who are all members of the Klokner Institute – is dedicated to creating architectural and structural designs using the new concrete material UHPFRC.
Durable footbridge made with UHPFRC
The Footbridge in Lužec nad Vltavou runs across the non navigable river flow between the villages of Lužec nad Vltavou and Bukol. The bridge is on the long-distance north-south cycle route EuroVelo 7 leading from Sweden to Sicily.
The main material used in the building of the bridge is UHPFRC, an ultra-high performance fiber reinforced concrete material that guarantees that the bridge will last for a long time, thanks to the impressive mechanical properties of the UHPFRC.
Bridge design based on lightness and subtlety
The architectural design of the footbridge is based on the lightness and subtlety that are made possible by the technologically extremely advanced material UHPFRC.
The footbridge is conceived as a suspended structure with one pylon and two fields with spans of 30 + 100 m. The main field crosses the river with a width of 70 m. The bridge deck is led in a high-rise arch with a radius of 777 m and is composed of directly walking prefabricated segments from UHPFRC. The hinges consist of 17 pairs of locked steel ropes.
The bridge deck was mounted on the fixed ring above the banks. The part above the river was mounted as a free cantilever. The bridge deck is connected with two free cables. All elements of the structure are unified and dematerialized by tones of a medium gray color.
The footbridge is connected with the landscape by a newly planted oak alley along the road on the Bukol side. The oak trees will grow to the height of the pylon, which will provide visual pride and a continued connection with nature as the people of Lužec nad Vltavou and Bukol village view the big oak trees along the road of this durable and very useful footbridge.