Time-dependent analysis of composite steel-concrete beams using integral equation of Volterra, according EUROCODE-4

Title:

Time-dependent analysis of composite steel-concrete beams using integral equation of Volterra, according EUROCODE-4

Creator:

Partov, Doncho and Kantchev, Vesselin

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:5a756a78-9ebd-4ca5-abb4-63c4050f2959
uuid:5a756a78-9ebd-4ca5-abb4-63c4050f2959

Subject:

composite steel-concrete section, Volterra integral equations, rheology, and EUROCODE-4

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The paper present analysis of the stress changes due to creep in statically determinate composite steel-concrete beam. The mathematical model involves the equation of equilibrium, compatibility and constitutive relationship, i.e. and elastic law for the steel part and an integral-type creep law of Boltzmann-Volterra for the concrete part. For determining the redistribution of stresses in beam section between concrete plate and steel beam with respect to time t, Volterra integral equations of the second kind have been derived, on the basis of the theory of the viscoelastic body of Arutyunian-Trost-Bazant. Numerical method, which makes use of linear approximation of the singular kernal function in the integral equations is presented. Example with the model proposed is investigated. The creep functions is suggested by the 'CEB-FIP' models code 1990. The elastic modulus of concrete Ec(t) is assumed to be constant in time t. and Obsahuje seznam literatury

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

367-392

Source:

Engineering mechanics: international journal for theoretical and applied mechanics | 2009 Volume:16 | Number:5

Harvested from:

CDK

Metadata only:

false