Hybrid steel-concrete structures, also known as composite structures, are designed and constructed using both steel and concrete materials to provide a combination of strength, durability, and flexibility in design. These structures are commonly used in large-scale construction projects, such as high-rise buildings, bridges, and industrial facilities.

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The steel and concrete materials in hybrid structures are strategically combined to maximize their strengths while minimizing their weaknesses. Steel is used for its high tensile strength, which makes it well-suited for resisting horizontal forces, such as wind and seismic loads. Concrete, on the other hand, is used for its high compressive strength, which makes it ideal for bearing heavy vertical loads.