SLAB REINFORCEMENT METHOD USING CAST-IN-PLACE CONCRETE

摘要

PROBLEM TO BE SOLVED: To provide a slab reinforcement method using cast-in-place concrete capable of improving bearing force as well as rigidity of an existing RC rigid-frame viaduct and implementing a measure against vibration by strengthening connections between slabs as well as between the slab and a beam through simple construction.

SOLUTION: A slab reinforcement method using cast-in-place concrete constructs: an additional beam 3 made of cast-in-place concrete arranged at a lower surface 1A of a slab 1 in a direction orthogonal to a railway; hole-in anchors 5 to be driven into the slab 1; and the hole-in anchors 6 to be driven into a beam 4 of the slab 1. Reinforcement of the additional beam 3 is arranged so that axial reinforcement 2B thereof is spliced with the hole-in anchors 6 to be driven into the beam 4 of the slab 1 and a shear reinforcement 2A thereof is spliced with the hole-in anchors 5 to be driven into the slab 1.

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