Verdrängungskörper in vorgespannten Brücken: Untersuchung und Instandsetzung

Hollow Fillers in Prestressed Bridges Examination and Reinstatement. To reduce self weight hollow fillers were frequently used in prestressed bridge decks between 1960 and 1970. Investigations of these bridges indicate that often the hollow fillers have been the starting point of damages. Sometimes first defects already arose while casting, if e.g. too stiff concrete has not been able to enclose the hollow fillers. Due to a defective bridge deck sealing and cracks within the bridge deck, water is able to penetrate the hollow fillers. Often also leaking drainage systems running through a hollow filler or located nearby have caused damages on the bridge deck.