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Investigations of Structural Behaviors of Steel Tower Structures by Frame Shape Variation

철탑구조의 트러스형상 변화에 따른 구조거동 분석

  • Moon, Mi Young (Architectural Engineering, Kongju National University) ;
  • Kim, Woo Bum (School of Architecture, Kongju National University)
  • Received : 2017.03.20
  • Accepted : 2017.05.17
  • Published : 2017.08.27

Abstract

The purpose of this study is to analyze the ultimate strength and behavior of triangular and rectangular frames in steel towers. Investigations of collapse mechanism including local and global failures of partial frame are carried out through finite element analysis and small scaled experiments. Ultimate strength and deformation are investigated in case of shape variations with change of the interior and exterior frames. The efficiency of rectangular frame saving sub-brace members are verified with comparisons of the ultimate strength of triangular frames.

본 논문에서는 강관철탑의 3차원 비선형해석 및 비교 검증 실험을 통하여 보조재의 역할 및 결구 거동 특성을 파악하였다. 특히 기존 철탑의 삼각결구를 단순화한 사각결구의 거동특성을 살펴보기 위하여 외측결구와 내측결구의 형상을 달리하고 각 결구의 다양한 조합을 통하여 보조재가 철탑의 내력에 미치는 영향을 살펴보았다.

Keywords

References

  1. Korea Electric Power Company (1997) Specification of Electric Transmission Tower 1111.
  2. Al-Bermani, F.G.A. and Kitipornchai, S. (1992) Nonlinear Analysis of Transmission Towers, Eng. Struct., Vol.14, No.3, pp.139-151. https://doi.org/10.1016/0141-0296(92)90025-L
  3. Kim, W.B. and Choi, B.J., (2008) Development of Nonlinear Analysis Technic to Determine the Ultimate Load in Electric Transmission Tower, Journal of Korean Society of Steel Construction, KSSC, Vol.20, No.2, pp.389-398.
  4. Chan, S.L. and Kitipornchai, S. (1998) Inelastic Post-Buckling Behavior of Tubular Struts, Journal of Structural Engineering, ASCE, Vol.114, No.5, pp.1091-1104. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:5(1091)
  5. Roy, S. (1984) Secondary Stresses on Transmission Tower Structures, Journal of Structural Engineering, ASCE, Vol.110, No.2, pp.157-172. https://doi.org/10.1061/(ASCE)0733-9445(1984)110:1(157)
  6. ABAQUS User's Manual Version 6.5, Hibbit Karlsson, and Sorensen, Inc.,Pawtucke, R,I..
  7. Walker, A.C. (1984) Buckling of Offshore Structures. F. Bleich, McGraw-Hill, Buckling Strength of Metal Structures, 1952, pp.20-30.
  8. Albermani, F. (2004) Upgrading of Transmission Towers Using a Diaphragm Bracing System, Engineering Structures, Elsevier, Vol.26, No.9, pp.735-744. https://doi.org/10.1016/j.engstruct.2004.01.004