Ultimate load capacity of curved CHS steel struts infilled with higher strength concrete
Abstract
A series of nine circular cold-formed curved CHS steel tubes infilled with higher strength concrete of 70 MPa compressive strength was tested to assess the general behaviour of these composite sections. Three different radii of initial curvature, 2 m, 4 m, and 10 m were selected to examine the effects of small and large initial curvatures. A method to calculate the strength of the composite tubes is presented based on an initial sinusoidal deflected form of the curved tubes. The method uses the intersection of the cross section and elastic behaviour analyses. There is good agreement between the calculated and the test results.
Fields of Study & Subjects
Structural Load-Bearing Analysis
Structural Integrity and Reliability Analysis
Structural Behavior of Reinforced Concrete
Publication details
- Journal / source
- CRC Press eBooks
- Pages
- 315–320
- Publication date
- 11 February 2026
- Language
- EN
- Document type
- Book chapter