Structural Safety Assessment of a Concrete-filled Base Frame Supporting a Motor for Centrifugal Compressor Drives

원심식 압축기 구동용 모터 베이스 프레임의 콘크리트 타설에 따른 구조안전성 평가

Kim, Min-Jin;Lee, Jae-Hoon;Han, Jeong-Sam

  • Received : 2015.07.22
  • Accepted : 2015.11.18
  • Published : 2016.02.28


In this paper, we perform structural analysis for a base frame which is used to support a motor for large centrifugal compressor drives and a safety assessment according to the concrete placement. First, the structural analysis about four loading conditions for the motor base frame was conducted and the structural safety was evaluated through both the maximum distortion energy theory and Mohr-Coulomb theory. It was possible to perform a more reasonable safety evaluation against local stresses occurring at the discontinuous portion of the fragile structural members by applying the safety assessment through ASME VIII Div. 2. In addition, the motor base frames with and without the internal concrete placement were quantitatively compared by the structural analysis and safety evaluation using ASME code and it was found to improve the structural integrity due to the concrete placement.


motor base frame;centrifugal compressor drive;maximum distortion energy theory;mohr-coulomb theory;ASME code VIII Div. 2;stress linearization


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Grant : WorldClass300프로젝트지원

Supported by : (주)대주기계