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Behavior of Steel Tube and Confined High Strength Concrete for Concrete-Filled RHS Tubes
This paper presents an experimental study of the separated behavior of short (L/H=3) high strength concrete-filled rectangular hollow section (RHS) tubes concentrically loaded in compression to failure. A total of 50 specimens were tested. Experimental results showed that the concrete strength influenced the failure pattern of the specimen. The height-to-breadth ratio of the rectangular tube (varying from 1.0 to 1.6) had no evident influence on the ultimate bearing capacity of the specimen. Then based on the experimental results, a numerical separation method was successfully used to separate the compressive load carried by the steel tube and the core concrete. The equivalent One-Dimensional nonlinear stress-strain models of the steel and the confined concrete were suggested, which can be used to determine the overall behavior of the high strength concrete-filled RHS tubes. The stress-strain models have been used to numerically analyze the behavior of high strength concrete-filled RHS tubes. The numerical results are compared with the experimental results and they agreed well with each other.
Behavior of Steel Tube and Confined High Strength Concrete for Concrete-Filled RHS Tubes
This paper presents an experimental study of the separated behavior of short (L/H=3) high strength concrete-filled rectangular hollow section (RHS) tubes concentrically loaded in compression to failure. A total of 50 specimens were tested. Experimental results showed that the concrete strength influenced the failure pattern of the specimen. The height-to-breadth ratio of the rectangular tube (varying from 1.0 to 1.6) had no evident influence on the ultimate bearing capacity of the specimen. Then based on the experimental results, a numerical separation method was successfully used to separate the compressive load carried by the steel tube and the core concrete. The equivalent One-Dimensional nonlinear stress-strain models of the steel and the confined concrete were suggested, which can be used to determine the overall behavior of the high strength concrete-filled RHS tubes. The stress-strain models have been used to numerically analyze the behavior of high strength concrete-filled RHS tubes. The numerical results are compared with the experimental results and they agreed well with each other.
Behavior of Steel Tube and Confined High Strength Concrete for Concrete-Filled RHS Tubes
Zhang, Sumei (Autor:in) / Guo, Lanhui (Autor:in) / Ye, Zaili (Autor:in) / Wang, Yuyin (Autor:in)
Advances in Structural Engineering ; 8 ; 101-116
01.04.2005
16 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Behavior of Steel Tube and Confined High Strength Concrete for Concrete-Filled RHS Tubes
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