복합신소재구조학회 논문집 (Journal of the Korean Society for Advanced Composite Structures)

  • 제5권2호
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  • Pages.1-8
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  • 2014
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  • 2093-5145(pISSN)
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  • 2288-0232(eISSN)
한국복합신소재구조학회 (Korean Society for Advanced Composite Structures)
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하중저항계수설계법 및 정밀해법에 의한 PFRP I형 단면 압축재의 국부좌굴강도

Local Buckling Strength of PFRP I-Shape Compression Members Obtained by LRFD Design Method and Closed-Form Solution

  • 투고 : 2014.05.29
  • 심사 : 2014.06.24
  • 발행 : 2014.06.30
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초록

Fiber reinforced polymeric plastic (FRP) materials have many advantages over conventional structural materials, i.e., high specific strength and stiffness, high corrosion resistance, right weight, etc. Among the various manufacturing methods, pultrusion process is one of the best choices for the mass production of structural plastic members. Since the major reinforcing fibers are placed along the axial direction of the member, this material is usually considered as an orthotropic material. However, pultruded FRP (PFRP) structural members have low modulus of elasticity and are composed of orthotropic thin plate components the members are prone to buckle. Therefore, stability is an important issue in the design of the pultruded FRP structural members. Many researchers have conducted related studies to publish the design method of FRP structures and recently, referred to the previous researches, pre-standard for LRFD of pultruded FRP structures is presented. In this paper, the accuracy and suitability of design equation for the local buckling strength of pultruded FRP I-shape compression members presented by ASCE are estimated. In the estimation, we compared the results obtained by design equation, closed-form solution, and experiments conducted by previous researches.

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참고문헌

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