الفهرس | Only 14 pages are availabe for public view |
Abstract Composite columns are part of composite structures, which are widely used in the last few decades in the construction of tall buildings to achieve long spans, lower storey heights and provide additional lateral stiffness. One such system employs composite columns that consist of steel sections encased in concrete. This system combines the rigidity and formability of reinforced concrete with the strength and speed of construction associated with structural steel to produce an economic structure. The concrete used for encasing a structural steel section not only increases its strength and stiffness, but also protects it from fire damage. In this study a comprehensive investigation has been conducted to study the behavior of steel encased in concrete composite columns. Finite Element model has been used and verified with other experimental works. A good agreement was achieved by comparing the analytical results with the experimental works conducted by other authors. Many factors has been taken into consideration such as properties of materials, dimensions of column and type of loading. A comparison has been made with the conducted models and with Egyptian Code of Practice (ECP) and good results were found and some recommendations were suggested to take into consideration when designing a composite column to achieve a proper design of steel encased in concrete composite columns. |