Žeželj was the great engineer and constructor of bridges from stressed and prestressed concrete. After the first bridge from the prestressed concrete over the River Smailska at the town of Kraljevo, and later more great bridges constructed in the same technique, were constructed in those days and at the time, the recorders in dimensions were the bridge at the river Tisa at the town of Titel. “The bridge of Žeželj”, at Danube near the city of Novi Sad and at Beška. Later, the Žeželj technology was used to build the most important bridges in the world. The bridge at Novi Sad had the span of the great arch of 211 meters and is among the greatest arch bridges of concrete of the world used for railway traffic. During the building of this bridge, for the first time in the world, during the building of the bridge, the assembly arch concrete scaffolding, having the span of 108 meters, secured the freedom of sailing. Also, because of the instability of the terrain at the left bank of Danube, intending to bear the horizontal pressure of the arch, for the first time in the building of arch bridges, the so called prestressing of the terrain by using the strong hydraulic presses was implemented with the particularly composed system of concrete bolts that automatically compensated the eventual horizontal moving of the support. The mentioned original solutions of Branko Žeželj, at the Congress of the World Association for Presstressing (FIP), held in Rome in 1960 were declared to be the exceptional novelties in the building of bridges.
In the last ten years of life, Žeželj devoted himself to the research, projecting and introduction of the new system of building of public and residential quarters – the system called the System 50. This system of building includes a concept as a very simple catalogue system of the industrial construction , characterized by the high degree of the freedom of urbane and architectural projecting with the respect of the principle of modularity, componability and compatibility with the other sub-systems.
The experts of the Intellectual Property Office of the Republic of Serbia, according to the latest researches of the patent documentation, found 41 patent of Branko Žeželj and two inventors certificates, including 26 domestic patents. Abroad, the majority of patents by Žeželj were protected at the territory of Austria – totally four, two at the territory of Germany and Switzerland and one at the territory of USA, Finland, France, Greece, Italy, Hungary and Norway. For almost 44 years Žeželj created and protected his inventions. The first application for invention he filed on September 24, 1950 for the Equipment for tensioning and anchorage of steel wires in the manufacture of the civil engineering elements of prestressed concrete, and the last before the end of his life, on 26 April 1994, the Procedure for concrete arch bridges without scaffolding.
- read the exclusive text of Branislav Vojinovic BSc, civil engineer who was collaborator of Branko Žeželj
- have a look at the map of patents of Branko Žeželj