Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental study on the lateral behavior of DSCT columns with corrugated inner tube
Abstract A double-skinned composite tubular column with a corrugated internal tube (DSCT-CT) was suggested to reduce the thickness of the inner tube while maintaining the required buckling strength. The DSCT-CT was studied to evaluate its behavior under lateral loading, and its lateral behavior was compared with that of a DSCT column with a flat internal tube (DSCT-FT). Quasi-static tests were performed by applying cyclic lateral loadings to the two different DSCT columns. Their test results were compared to each other and to those of a solid RC column from other research. The test results showed that the DSCT-CT column had larger ductility than the DSCT-FT column, with an equivalent damping ratio. However, the DSCT-CT column showed a smaller bending moment resistance and energy-absorbing capacity than the DSCT-FT column. Overall, the test results showed that the performances of the DSCT columns were superior to that of the solid RC column in terms of strength, yield energy, ultimate energy, and energy-absorbing capacity. As a result of their superior moment capacities, the DSCT columns absorbed about 50 % more energy than the solid RC column. However, the DSCT columns showed lower energy ductility factors than the solid RC column because of their high yield energies.
Experimental study on the lateral behavior of DSCT columns with corrugated inner tube
Abstract A double-skinned composite tubular column with a corrugated internal tube (DSCT-CT) was suggested to reduce the thickness of the inner tube while maintaining the required buckling strength. The DSCT-CT was studied to evaluate its behavior under lateral loading, and its lateral behavior was compared with that of a DSCT column with a flat internal tube (DSCT-FT). Quasi-static tests were performed by applying cyclic lateral loadings to the two different DSCT columns. Their test results were compared to each other and to those of a solid RC column from other research. The test results showed that the DSCT-CT column had larger ductility than the DSCT-FT column, with an equivalent damping ratio. However, the DSCT-CT column showed a smaller bending moment resistance and energy-absorbing capacity than the DSCT-FT column. Overall, the test results showed that the performances of the DSCT columns were superior to that of the solid RC column in terms of strength, yield energy, ultimate energy, and energy-absorbing capacity. As a result of their superior moment capacities, the DSCT columns absorbed about 50 % more energy than the solid RC column. However, the DSCT columns showed lower energy ductility factors than the solid RC column because of their high yield energies.
Experimental study on the lateral behavior of DSCT columns with corrugated inner tube
Han, Taek Hee (Autor:in) / Won, Deokhee (Autor:in) / Kim, Seungjun (Autor:in) / Kang, Young Jong (Autor:in)
2014
Aufsatz (Zeitschrift)
Englisch
Experimental study on the lateral behavior of DSCT columns with corrugated inner tube
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Experimental study on the lateral behavior of DSCT columns with corrugated inner tube
| Online Contents | 2014
Experimental study on the lateral behavior of DSCT columns with corrugated inner tube
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Experimental study on the lateral behavior of DSCT columns with corrugated inner tube
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