Long-term analysis of concrete structures

Title:

Long-term analysis of concrete structures

Creator:

Hora, Zbyněk and Patzák, Bořek

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:2423859f-5643-4ebf-868f-bcaafe1581b9
uuid:2423859f-5643-4ebf-868f-bcaafe1581b9

Subject:

concrete, creep, hydration, material model, and microprestress-solidification theory

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

For assessment of safety and durability of any large-scale concrete structure, prediction of the behaviour of the structure under various service and extreme conditions is crucial. To perform reliable analysis of the complete structure, a sufficiently realistic but still feasible numerical model must be used, in which the relevant physical phenomena are reflected. Therefore, a constitutive model for concrete including effects on moisture and heat transfer, cement hydration, creep, shrinkage and optionally microcracking of concrete should be chosen. The present paper focuses on the simulation of the service life of a NPP containment, aiming to determine the material and model parameters to enable reliable prediction of durability and structural behaviour under various conditions. The purpose of the work is to provide a numerical model calibrated using existing measurements to predict the long-term behaviour reliably. Extensive in situ measurements are used to calibrate the model and to check the validity of model hypotheses. Moreover, the material model parameters are systematically re-calibrated based on continuous monitoring of the structure. The structural integrity test is reanalysed numerically to show the model capability of predicting behaviour of the structure under given loading and climate conditions. and Obsahuje seznam literatury

Language:

English

Rights:

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

Coverage:

297-306

Source:

Engineering mechanics: international journal for theoretical and applied mechanics | 2006 Volume:13 | Number:4

Harvested from:

CDK

Metadata only:

false