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Experimental Study on Torsion Behavior of Concrete Filled Steel Tube Columns subjected to Eccentric Compression
https://orcid.org/0000-0001-5535-527X
AbstractUnder gravity and the horizontal earthquake load, the eccentric compression and torsion combined action will be produced in the piers of curved girder bridges and the main arch of arch bridge. In order to study the torsion behavior of concrete filled steel tube columns subjected to eccentric compression, tests were carried out on eight specimens of concrete filled steel tube column subjected to static pure torsion, cyclic pure torsion and eccentric compression-torsion cyclic load. The results of tests have indicated that, the hysteresis curve of concrete filled steel tube column subjected to torsion cyclic load was plump; no pinch phenomenon can be found; the damage and degradation degree of the strength and stiffness of specimens is lower; and high energy dissipation capacity can be achieved. The stiffness degradation of the specimens with square section subjected to eccentric compression-torsion cyclic load is more obvious. The eccentric compression has led to weaken of the energy dissipation capacity of the square section concrete filled steel tube column. Under the ultimate state, the wave angle of steel tube was affected by the eccentric compression.
HighlightsThe eccentric compression load is considered.The seamless steel tubes are used in the concrete filled steel column specimens.Torsion hysteretic load was applied in the experiment.The torsional behavior of columns with different height is compared.
Experimental Study on Torsion Behavior of Concrete Filled Steel Tube Columns subjected to Eccentric Compression
https://orcid.org/0000-0001-5535-527X
AbstractUnder gravity and the horizontal earthquake load, the eccentric compression and torsion combined action will be produced in the piers of curved girder bridges and the main arch of arch bridge. In order to study the torsion behavior of concrete filled steel tube columns subjected to eccentric compression, tests were carried out on eight specimens of concrete filled steel tube column subjected to static pure torsion, cyclic pure torsion and eccentric compression-torsion cyclic load. The results of tests have indicated that, the hysteresis curve of concrete filled steel tube column subjected to torsion cyclic load was plump; no pinch phenomenon can be found; the damage and degradation degree of the strength and stiffness of specimens is lower; and high energy dissipation capacity can be achieved. The stiffness degradation of the specimens with square section subjected to eccentric compression-torsion cyclic load is more obvious. The eccentric compression has led to weaken of the energy dissipation capacity of the square section concrete filled steel tube column. Under the ultimate state, the wave angle of steel tube was affected by the eccentric compression.
HighlightsThe eccentric compression load is considered.The seamless steel tubes are used in the concrete filled steel column specimens.Torsion hysteretic load was applied in the experiment.The torsional behavior of columns with different height is compared.
Experimental Study on Torsion Behavior of Concrete Filled Steel Tube Columns subjected to Eccentric Compression
https://orcid.org/0000-0001-5535-527X
AbstractUnder gravity and the horizontal earthquake load, the eccentric compression and torsion combined action will be produced in the piers of curved girder bridges and the main arch of arch bridge. In order to study the torsion behavior of concrete filled steel tube columns subjected to eccentric compression, tests were carried out on eight specimens of concrete filled steel tube column subjected to static pure torsion, cyclic pure torsion and eccentric compression-torsion cyclic load. The results of tests have indicated that, the hysteresis curve of concrete filled steel tube column subjected to torsion cyclic load was plump; no pinch phenomenon can be found; the damage and degradation degree of the strength and stiffness of specimens is lower; and high energy dissipation capacity can be achieved. The stiffness degradation of the specimens with square section subjected to eccentric compression-torsion cyclic load is more obvious. The eccentric compression has led to weaken of the energy dissipation capacity of the square section concrete filled steel tube column. Under the ultimate state, the wave angle of steel tube was affected by the eccentric compression.
HighlightsThe eccentric compression load is considered.The seamless steel tubes are used in the concrete filled steel column specimens.Torsion hysteretic load was applied in the experiment.The torsional behavior of columns with different height is compared.
Experimental Study on Torsion Behavior of Concrete Filled Steel Tube Columns subjected to Eccentric Compression
Wang, Yu-Hang (author) / Guo, Yi-Fan (author) / Liu, Jie-Peng (author) / Zhou, Xu-Hong (author)
Journal of Constructional Steel Research ; 129 ; 119-128
2016-11-05
10 pages
Article (Journal)
Electronic Resource
English
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