Numerical analysis of the relaxation of a bending moment, aroused over the support due to its settlement in a continuous composite steelconcrete beam, using integral equations of volterra
PARTOV, D.N., et al. Numerical analysis of the relaxation of a bending moment, aroused over the support due to its settlement in a continuous composite steelconcrete beam, using integral equations of volterra. In: Proceedings of 16th International Conference on New Trends in Statics and Dynamics of Buildings. 16th International Conference on New Trends in Statics and Dynamics of Buildings, Bratislava, 2018-10-18/2018-10-19. Bratislava: Slovak University of Technology in Bratislava, 2018. ISBN 978-80-227-4845-2.
The paper presents numerical analysis of the stress changes due to creep in statically indeterminate composite
steel-concrete beam. For determining the relaxation of a bending moment, aroused over the support due to its
settlement, in a continuous composite steel- concrete beam, with respect to time “t”, system of two independent
Volterra integral equations of the second kind have been derived, on the basis of the theory of the viscoelastic
body of Arutyunyan–Trost-Bažant. The mathematical model involves the equation of equilibrium, compatibility
and constitutive relationship, i.e. an elastic law for the steel part and an integral-type creep law of Boltzmann –
Volterra for the concrete part. Numerical method, which makes use of linear approximation of the singular
kernal function in the integral equation. Example with the model proposed is investigated. The creep functions is
suggested by the “CEB-FIP” models code 2010. The elastic modulus of concrete Ec(t) is assumed to be constant
in time „t‟.
eng
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Slovak University of Technology in Bratislava
dc.relation.ispartof
Proceedings of 16th International Conference on New Trends in Statics and Dynamics of Buildings
dc.subject
relaxation
eng
dc.subject
numerical analysis
eng
dc.subject
indeterminate composite steel-concrete beam
eng
dc.title
Numerical analysis of the relaxation of a bending moment, aroused over the support due to its settlement in a continuous composite steelconcrete beam, using integral equations of volterra
eng
dc.type
stať ve sborníku
cze
dc.type
conference paper
eng
dc.relation.projectid
info:eu-repo/grantAgreement/Czech Science Foundation/GA/GA16-04454S/CZ/Uncertainties on the material level affecting those on the structural level/
dc.rights.access
closedAccess
dc.type.status
Peer-reviewed
dc.type.version
publishedVersion
dc.relation.conference
16th International Conference on New Trends in Statics and Dynamics of Buildings