STEEL COMPOSITE BRIDGE USING PRECAST PRESTRESS CONCRETE FLOOR SLAB

摘要

PROBLEM TO BE SOLVED: To provide a steel composite bridge to increase a composite effect with a steel main girder and use precast prestress concrete floor slab having excellent workability. SOLUTION: A plurality of stud dowels 13, 14, and 15 are arrange on the upper surface of an upper flange 12 of a steel main girder 10 and precast prestress concrete floor slabs 20 are laid in juxtaposition on the upper surface of an upper flange 12. The stud dowel is positioned at a joint part between the adjoining precast prestress concrete floor slabs 20 and on the lower part of the precast prestress concrete floor slab 20. A space part and a joint between a flange and the under surface of the precast prestress concrete floor slab 20 is filled with filler 40 injected and placed through the joint to bury each stud dowel. This constitution integrally forms a plurality of precast prestress concrete floor slabs and the steel main girder for the composite structure.