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[VI-734] Slab replacement work of Composite girder bridge

〇Kazuaki Tobita¹, Masayuki Anase², Yoshihiro Yushita¹ (1.East Nippon Expressway, 2.IHI Construction Service)

Keywords:slab replacement work, composite girder bridge, girder reinforcement

Slab was replaced at Omorigawa Bridge (36.3-meter long steel girder bridge) which has been constructed for more than 40 years.When carrying out slab replacement work, the main girder capacity check exceeded tolerance.Therefore, in this construction, the main girder was reinforced.