Abstract
Composite steel-concrete bridges are one of the most recent additions to the bridge science. By joining the two of the most commonly used materials it is possible to use their strengths combined. This was firstly presented for composite ceilings. It was assembled by encasing the whole I-beams into the concrete deck. Nowadays, it can also be used for short span railway bridges. Ongoing research at Technical University of Košice (TUKE), Faculty of Civil Engineering, is currently trying to prove the unnecessity of usage of the entire I-beam as well as the entire block of concrete by encasing only part of the beam, the so called perforated steel strip, into the concrete.
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