MATEC Web Conf.
Volume 323, 202010th International Conference of Advanced Models and New Concepts in Concrete and Masonry Structures (AMCM 2020)
|Number of page(s)||7|
|Section||Adnanced Models and New Concepts in Concrete Structures|
|Published online||05 October 2020|
Analytical solution for the resistance of composite beams subjected to bending
Instytut Techniki Budowlanej, Department of Building Structures, Geotechnics and Concrete, 00-611 Warsaw, ul. Filtrowa 1, Poland
* Corresponding author: email@example.com
The paper deals with the resistance of steel and concrete composite beams, named BH beams, subjected to bending. They are structurally connected with prefabricated or cast in situ slabs, forming floor slab system. The beams under consideration consist of the reinforced concrete (RC) rectangular core placed inside a reversed TT welded profile. The stress-strain relationship for concrete in compression of the RC core is assumed for nonlinear analysis according to Eurocode 2. For reinforcing and profile steels linear elastic – ideal plastic model is applied. The normalized ultimate bending moment determining the resistance of the BH beam is derived by integrating the equilibrium equations of the bending moments about the horizontal axis of the RC core rectangle, taking into account the physical and geometrical relationships. The presented model was verified by tests carried out on two BH beams subjected to bending. The comparisons made indicated good convergence between the analytical solution and the experimental results in ultimate bending moments.
© The Authors, published by EDP Sciences, 2020
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