الفهرس 
CHAPTER (1): INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Light-weight concrete-filled stainless steel tube composite columns combine the advantages of composite columns and the demands of structural engineers of full usage of construction materials. However, it is still unknown how light concrete would affect the composite column behavior under different loads. In addition, there is no detailed design guidelines for this type of composite columns. Therefore, this study investigates the behavior of light-weight concrete-filled stainless steel columns through experimental and numerical investigation. An experimental program was carried out on specimens of lightweight concrete-filled stainless steel circular hollow section columns. Based on the test results, a numerical model was developed using finite element method to simulate the behavior of light-weight concrete-filled stainless steel tube composite columns. The finite element model was validated and verified against the test results conducted in this study. The failure modes observed in the tests were compared with the numerical failure modes. An extensive parametric study was performed using the verified numerical model. The parametric study investigates the effect of different parameters affecting the behavior and strength of light-weight concrete-filled stainless steel tube columns. The parameters investigated comprise the stainless steel tube geometries and light-weight concrete strength. The composite column strengths from the tests and the finite element analysis were compared with the design strengths calculated using the EC4 (European code). The study has assessed the design rules specified in the code against both experimental and numerical results.