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Cellular and corrugated cross-sectioned thin-walled steel bridge-piers/columns
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  • Cellular and corrugated cross-sectioned thin-walled steel bridge-piers/columns
  • Cellular and corrugated cross-sectioned thin-walled steel bridge-piers/columns
저자명
Ucak. Alper,Tsopelas. Panos
간행물명
Structural engineering and mechanics : An international journal
권/호정보
2006년|24권 3호|pp.355-374 (20 pages)
발행정보
테크노프레스
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Thin walled steel bridge-piers/columns are vulnerable to damage, when subjected to earthquake excitations. Local buckling, global buckling or interaction between local and global buckling usually is the cause of this damage, which results in significant strength reduction of the member. In this study new innovative design concepts, "thin-walled corrugated steel columns" and "thin-walled cellular steel columns" are presented, which allow the column to undergo large plastic deformations without significant strength reduction; hence dissipate energy under cyclic loading. It is shown that, compared with the conventional designs, circular and stiffened box sections, these new innovative concepts might results in cost-effective designs, with improved buckling and ductility properties. Using a finite element model, that takes the non-linear material properties into consideration, it is shown that the corrugations will act like longitudinal stiffeners that are supporting each other, thus improving the buckling behavior and allowing for reduction of the overall wall thickness of the column.