Abstract
A part of newly constructed taxiway in Narita international airport, steel-concrete composite deck bridge is adopted where the taxiway strides over existing road. Taxiways those have bridge style are rare in the world and the design method for the taxiway bridge is not clearly established at this moment. Thus, in addition to well-used design method of road bridge, FEM analysis and punching shear experiments with full scale specimens were carried out to verify the safety of the bridge and concrete slab. After completion of the construction work, loading tests by real aircraft were also executed to verify the distributions of stresses in the slab and safety of the bridge. Gauges and thermocouples were installed in concrete slab and on the girders at construction stage. Up to the present, continuous measurement is ongoing using the gauges and monitoring systems and the behavior by aircraft taxiing were measured. This paper introduces the taxiway bridge as one example of composite structures and describes some acknowledges from the experiments and studies.
