THE DESIGN OF AN ECONOMICAL JACKET TYPE PIER EFFECTIVELY UTILIZING THE STRUCTURAL TYPE OF AN EXISTING PORT FACILITY (COMB-TYPE STEEL PIPE PILE REVETMENT)

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  • KATANO Naoki
    国土交通省 関東地方整備局 港湾空港部
  • YAMAMOTO Kota
    元 国土交通省 関東地方整備局 東京港湾事務所 現 東京都 港湾局
  • DAMMURA Hajime
    株式会社エコー 事業本部 構造系事業部 調査設計部

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Other Title
  • 既存港湾施設の構造形式（櫛形鋼管矢板式護岸）を有効活用した経済的なジャケット式桟橋の設計

Abstract

<p> In the 2007 revision of the Technical Standard for Port and Harbour Facilities and its Commentary, the concept of performance-based design was presented. The 2018 revision clarified the concept of improvement design of existing facilities and the promotion of effective utilization of existing stock. In designing a new jacket-type pier in front of an existing revetment (double steel pipe sheet pile structure with long piles) consisting of long and short steel pipe sheet piles in the outer area of the central breakwater of the Port of Tokyo. We evaluated the effect of long piles and attempted to establish performance criteria. As a result, it was confirmed that the long piles exerted resistance force during a level 2 earthquake and reduced the stress generated in the piles of the new pier. This paper presents an economical design by effectively utilizing the structural form of the existing port facilities within the framework of performance-based design.</p>

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