Wind and Structures

  • 제31권5호
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  • Pages.381-392
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  • 2020
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Wind-induced fragility assessment of protruding sign structures

  • Sim, Viriyavudh (Department of Civil Engineering, Gangneung-Wonju National University) ;
  • Jung, WooYoung (Department of Civil Engineering, Gangneung-Wonju National University)
  • 투고 : 2019.10.23
  • 심사 : 2020.10.30
  • 발행 : 2020.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

Despite that the failure of sign structure may not have disastrous consequence, its sheer number still ensures the need for rigorous safety standard to regulate their maintenance and construction. During its service life, a sign structure is subject to extensive wind load, sometimes well over its permissible design load. A fragility analysis of a sign structure offers a tool for rational decision making and safety evaluation by using a probabilistic framework to consider the various sources of uncertainty that affect its performance. Wind fragility analysis was used to determine the performance of sign structure based on the performance of its connection components. In this study, basic wind fragility concepts and data required to support the fragility analysis of the sign structure such as sign panel's parameters, connection component's parameters, as well as wind load parameters were presented. Fragility and compound fragility analysis showed disparity between connection component. Additionally, reinforcement of the connection system was introduced as an example of the utilization of wind fragility results in the retrofit decision making.

키워드

과제정보

This study was supported by grant [20IFIP-B128598-04] from Industrial Facilities & Infrastructure Research Program (IFIP) funded by Ministry of Land, Infrastructure and Transport of Korea (MOLIT), and grant [2017R1A2B3008623] from National Research Foundation (NRF) funded by Korean Ministry of Education, Science and Technology (MEST).

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