An Experimental Study For Construction of Composite Reinforced Structure of Steel and Concrete |
Traditionally"steel structures" and "concrete structures" formed more orless two different worlds in structural engineering. Fortunately this situationis changing rapidly. It is now recognised that each of the two materials haveadvantages and disadvantages and that often n optimal solution is found bycombining both materials. This may be a combination of steel and concrete in anelement as is the case in "Composite steel-concrete construction" orthe combined use of concrete elements and steel elements in "Mixedconstruction". For the design of composite steel-concrete elements specificdesign standards have been developed. However for “Mixed construction” acombined use of steel design standards and concrete design standards isnecessary. It is important that the design rules for the two materials areconsistent, especially for those components connecting both materials. However,in the past the design standards and recommendations for concrete and steelhave been developed separately. So evidently at this moment there areconsiderable differences in design assumptions and treatment of variousaspects. In the paper design methods for connections between structural steeland concrete will be discussed. The methods will be illustrated for columnbases, being the most frequently used type of connection between steel andconcrete, though the information can also be used for related types ofconnections. Thecomposite action in members built up of different materials results in savingsin construction cost. These savings can be further advanced by employingoptimization techniques in the design of composite members. This paper presentsan algorithm model for the cost optimization of composite beams based on thespecifications of the SR EN 1994-1-1/2006: Design of composite steel andconcrete structures.