Japan Society of Civil Engineers 2020 Annual Meeting

Presentation information

[共通セッション] 新設および大規模改修時における橋梁計画

新設および大規模改修時における橋梁計画(3)

Chair:Hiroki Sugiyama

[CS3-17] Development of non-metallic precast bridge railing

〇Yoshinori Wada1, Yusuke Fujii1, Takeshi Karino2, Hiroyuki Uchibori2 (1.West Nippon Expressway, 2.Sumitomo Mitsui Construction)

Keywords:Ultra high durable bridge railing, Precast, High strength fiber reinforced concrete, Glass FRP rods, Collision test

Bridge railings of expressways is required to be highly durable because it is exposed to the environment.
This paper discusses the development of a non-metallic precast bridge railing with the goal of developing a highly durable bridge that does not use any steel members such as reinforcing bars.
To make the parapet non-metallic, based on the generally used highway bridge railing forms, we developed a precast bridge railing using GFRP rods instead of rebars. During the development, a collision test was conducted using a specimen with an approximate load capacity of 70 kN.
The test confirmed a safety level equivalent to or higher than that of a typical reinforced concrete bridge railing.

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