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Ganzfertigteile bei der Verbundfahrbahnplatte der Bahretalbrücke - Eine Revision nach Ausführung und baubegleitender messtechnischer Überwachung


Medium: journal article
Language(s): de 
Published in: Stahlbau, , n. 12, v. 78
Page(s): 897-906
DOI: 10.1002/stab.200910105

Prefabricated elements for the floor system of Bahretalbridge.

The construction of floor systems of composite bridges, using prefabricated elements in concrete, could already achieve acceptance for smaller bridges. Different types were developed: VFT-types, semi-precast construction, precast construction. So far there are only a few cases of prefabricated elements in concrete for bigger bridges in Germany. Using the precast construction presents a possibility to produce floor systems faster and more effective, as done with the Bahretalbridge.
Special attention is to be turned to the calculation and construction of the crack formations. The crack formations seen in this particular construction happened because of the different material property and the production time of the prefabricated elements as well as the addition of floor systems. During the construction progress several measurements helped to understand the appearance of the crack formations. The stresses of the reinforcement between prefabricated elements and the in-situ concrete are much higher due to the effect of accumulated cracks. Summarizing the construction of the Bahretalbridge was done in a decent way and deserves a positive evaluation.

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