Creep and Shrinkage of Concrete Subjected to Variable Environmental Conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00221042" target="_blank" >RIV/68407700:21110/14:00221042 - isvavai.cz</a>

Výsledek na webu

<a href="http://mech.fsv.cvut.cz/wiki/images/c/ca/PhD_thesis_Havlasek_2014.pdf" target="_blank" >http://mech.fsv.cvut.cz/wiki/images/c/ca/PhD_thesis_Havlasek_2014.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Creep and Shrinkage of Concrete Subjected to Variable Environmental Conditions

Popis výsledku v původním jazyce

This thesis deals with the numerical modeling of concrete creep and shrinkage at variable environmental conditions. At lower relative humidity concrete creeps more slowly than at full saturation but during drying it creeps faster. Creep is also accelerated at elevated temperature or by temperature variations. One of the physically based models for concrete creep and shrinkage that takes into account variable temperature and humidity is based on the theory of microprestress and solidification (MPS). Unlike the MPS model to the models from the design codes which use the average cross-sectional approach, the MPS model operates at the material point level, which makes it possible to capture the stress distribution more realistically. Assessment of the MPSmodel is the main topic of this work. Several severe deficiencies of this model have been identified and appropriate remedies have been proposed. Comparing to the experiments, the original formulation of the MSP model exhibited the opposi

Název v anglickém jazyce

Creep and Shrinkage of Concrete Subjected to Variable Environmental Conditions

Popis výsledku anglicky

This thesis deals with the numerical modeling of concrete creep and shrinkage at variable environmental conditions. At lower relative humidity concrete creeps more slowly than at full saturation but during drying it creeps faster. Creep is also accelerated at elevated temperature or by temperature variations. One of the physically based models for concrete creep and shrinkage that takes into account variable temperature and humidity is based on the theory of microprestress and solidification (MPS). Unlike the MPS model to the models from the design codes which use the average cross-sectional approach, the MPS model operates at the material point level, which makes it possible to capture the stress distribution more realistically. Assessment of the MPSmodel is the main topic of this work. Several severe deficiencies of this model have been identified and appropriate remedies have been proposed. Comparing to the experiments, the original formulation of the MSP model exhibited the opposi

Druh

O - Ostatní výsledky

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů