Specification for chromium-molybdenum steel tube (700 MPa) (outside diameter not less than 12.5 mm) (weldable)

1980 ◽  
Keyword(s):  
Steel Tube ◽  
Molybdenum Steel ◽  
Outside Diameter

A Study on Experimental on Bending-Shear Behavior of Concrete-Filled Double Skin Steel Tubular Beams

2020 ◽  
Vol 986 ◽  
pp. 71-77
Author(s):  
Lee Seung Jo
Keyword(s):  
Restraint Stress ◽  
Concrete Strength ◽  
Maximum Load ◽  
Steel Tube ◽  
Diameter Ratio ◽  
Structural Behavior ◽  
Displacement Ductility ◽  
Failure Type ◽  
Double Skin ◽  
Outside Diameter

This study examined the effects of the inside-outside diameter ratio (Di/D0), concrete strength, and inside-outside reinforcement type of steel tube on the structural behavior of concrete-filled double-skin steel tubular (CFDT) beams. Towards this end, the failure type, load-deflection relationship, ultimate strength, and displacement ductility were compared and analyzed. The results showed that the maximum load-deflection and failure type are affected by the Di/D0 and the reinforcement method. Furthermore, the higher the Di/D0 was, the lower the restraint stress and maximum load became.

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