2020

ČECH BRIDGE

• Implementation: 2020
• Client: Technická správa komunikací hl. m. Prahy

The Klokner Institute of the Czech Technical University in Prague carried out part of the diagnostic survey of the Čech Bridge, including work on a variant design for the reconstruction of the bridge deck, for the Faculty of Civil Engineering of the Czech Technical University in Prague, which was the contract manager. The diagnostic works carried out by the Klokner Institute were focused on the evaluation of the corrosion condition of the railing and its PKO, the design and condition of the bridge closures, piers and abutments, public lighting poles and decorative elements on the piers. In the alternative design for the reconstruction of the bridge deck, the possibility of replacing the existing steel bridge deck with a UHPC bridge deck was assessed.

ŠKODA AUTO IN MLADÁ BOLESLAV

• Implementation: 2020
• Client: Novák & Partner

For the purpose of reconstruction of the underground building V12 in the Škoda Auto complex in Mladá Boleslav, diagnostics of the reinforced concrete structures of the monolithic skeleton of the building was carried out. The aim of the work was to determine the compressive strength of the concrete and the influence of oil products on its mechanical properties, the reinforcement of the structural elements of the skeleton, to determine the design characteristics of the reinforcement and to determine its corrosion state, including corrosion risks and mechanical properties of the reinforcement. The diagnostics included proposals and recommendations for the reconstruction of the building.

THE PALACKÝ BRDIGE

• Implementation: 2018 – 2020
• Client: Technická správa komunikací hl. m. Prahy, a.s.

The Klokner Institute of the Czech Technical University in Prague carried out an extensive diagnostic survey of the structures of the Palacký Bridge for the company Inset s.r.o., which was the contract manager. The bridge was built between 1876 and 1878, at the same time as part of the embankment on the New Town side. The bridge was built according to the project of Ing. J. Reiter and arch. B. Münzberger. In 1951 the bridge was widened with reinforced concrete cantilevers. The supporting structure consists of seven arches made of granite blocks with clearances of 27.2 + 28.8 + 30.4 + 32.0 + 30.4 + 28.8 + 27.2 m and one brick arch on the Smíchov side with a clearance of 9.0 m. The diagnostic work included load tests, structural analyses taking into account the current condition of the bridge and the results of the diagnostic work, preparation of a structural and historical survey, verification of the restoration procedures in-situ and identification of suitable quarries for possible replacement of stones during the repair, based on stone tests. The overall condition of the bridge was assessed, its load-bearing capacity was determined, proposals for measures for the bridge manager were formulated and a proposal for the reconstruction of the bridge was prepared.