Calculation Methods of Composite Beams Made of Steel and Concrete
V. V. Veselov, A. M. Fedorov
Emperor Alexander I St. Petersburg State Transport University
Annotation: The article considers a composite beam made of steel and concrete for span structures of bridges, analysis of the stress-strain state of a steel-concrete beam by various methods, incl. usage of the software system Structure CAD Office for structural analysis and design. It has been suggested to use a multi-span continuous beam consisting of a closed steel contour formed by two walls of curvilinear contour, upper and lower belts of the beam, with filling of the contour with concrete in a compressed section of the beam. Current Standards do not offer single-valued method of calculation of a composite beam made of steel and concrete of a closed contour of an arbitrary shape filled with concrete. Calculations of the a composite beam made of steel and concrete as elements of heterogeneous elasticity allows to calculate the stress values with minimal effort and small measurement error. Usage of the composite structures made of steel and concrete for spun structures of bridges allows to significantly reduce the local stresses in concrete and in steel shell, also it allows to increase the bending and torsional rigidity of the beam, significantly increase local sustainability of steel elements.
Keywords: bridge structures, composite beam made of steel and concrete, multi-span beam, stress-strain state, methods of calculation.
Pages: 97-107.
Link for citation: Veselov, V. V.; Fedorov, A. M. Calculation Methods of Composite Beams Made of Steel and Concrete. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2018. – Vol. 14, N 2. – Р. 97-107. – URL: https://donnasa.ru/publish_house/journals/spgs/2018-2/05_veselov_fedorov.pdf (date of access: 16.09.2024). (in Russian)
Vol. 14, N 2 (2018)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture