STUDY ON DEFORMATION CHARACTERISTICS OF ASPHALT PAVEMENT ON UFC SLAB BY LINEAR VISCOELASTIC ANALYSIS

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  • 線形粘弾性解析によるUFC道路橋床版上のアスファルト舗装の変形特性に関する研究
  • センケイネンダンセイ カイセキ ニ ヨル UFC ドウロキョウ ショウバン ジョウ ノ アスファルト ホソウ ノ ヘンケイ トクセイ ニ カンスル ケンキュウ

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 Ultra high strength fiber reinforced concrete (UFC) slab was developed as a lightweight and highly durable structure for road bridge slab. The thickness of UFC slab can be thinner than the general PC slab and as lightweight as the steel plate deck. But since the structural characteristics of UFC slab are different from conventional slabs (RC/steel), characteristics of the asphalt pavement deformation on UFC slab are not be different as well.<br> Therefore, in this study, finite element model of UFC slab, RC slab and steel plate deck were constructed and linear viscoelasticity analysis against running wheel load was conducted to obtain strain responses of the pavements. By comparing the strain responses of the asphalt pavement of three structure type, it was revealed that the strain response of the asphalt pavement on the UFC slab model shows different characteristics from the other structure type.

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