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Flexural-Shear Behavior of Concrete-Filled Double-Layer Steel Tubular Column

 Flexural-Shear Behavior of Concrete-Filled Double-Layer Steel Tubular Column
Autor(en):
Beitrag für IABSE Symposium: Long Span Bridges, Istanbul, Turkey, 26-28 April 2023, veröffentlicht in , S. 544-551
DOI: 10.2749/istanbul.2023.0544
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Concrete-filled steel tubular (CFT) column has been widely used in high-rise buildings because of a number of distinct advantages in earthquake zones, such as high lateral capacity and axial compre...
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Bibliografische Angaben

Autor(en): (Toyo University Kawagoe, Japan)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Long Span Bridges, Istanbul, Turkey, 26-28 April 2023
Veröffentlicht in:
Seite(n): 544-551 Anzahl der Seiten (im PDF): 8
Seite(n): 544-551
Anzahl der Seiten (im PDF): 8
Jahr: 2023
DOI: 10.2749/istanbul.2023.0544
Abstrakt:

Concrete-filled steel tubular (CFT) column has been widely used in high-rise buildings because of a number of distinct advantages in earthquake zones, such as high lateral capacity and axial compressive strength, large energy absorption capacity, good ductility, and high stiffness. In order to meet the structural performance of the high-rise building as the height of the building increases, a special column with concrete-filled double-layer steel tubes was proposed in previous research. In this study, quasi-static cyclic test of a concrete-filled double-layer steel tubular column (CFDLT column) specimen was carried out under relatively high constant axial force ratio to investigate the effect of steel ratio on the flexural-shear behavior of the column by comparing with the hysteresis loop of the CFDLT column specimen in previous study. Regarding the progress of lateral strength reduction after the ultimate lateral capacity, the CFDLT column specimen with larger steel ratio showed a slight improvement over the other one with smaller steel ratio.

Stichwörter:
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