Abstract
Concrete-steel composite structures are unique structures that combine the advantages of both steel and concrete. Their application is especially relevant in cases where construction objects need to withstand high loads with small cross-sectional dimensions. Thanks to the factory production of most of the elements and easy installation, it is possible to significantly reduce construction times. The main areas of application are high-rise construction, industrial construction, and bridge construction. The main task in the design of concrete-steel composite structures is to take into account the joint work of a reinforced concrete slab and steel beams, i.e. correct modeling of the structure when using calculation systems. This article explores various options for setting the numerical model of a concrete-steel composite beams using the example of one floor of a high-rise building, evaluates their reliability and compliance with the actual behavior of the structure. In conclusion, recommendations are offered on the numerical modeling of concrete-steel composite beams for calculation using the finite element method.
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