Probabilistic Analysis of Prestress Loss due to Creep in Concrete Box Girders

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00317981" target="_blank" >RIV/68407700:21110/17:00317981 - isvavai.cz</a>

Výsledek na webu

<a href="https://ascelibrary.org/doi/10.1061/%28ASCE%29BE.1943-5592.0001079" target="_blank" >https://ascelibrary.org/doi/10.1061/%28ASCE%29BE.1943-5592.0001079</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1061/(ASCE)BE.1943-5592.0001079" target="_blank" >10.1061/(ASCE)BE.1943-5592.0001079</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Probabilistic Analysis of Prestress Loss due to Creep in Concrete Box Girders

Popis výsledku v původním jazyce

The cross-section warping effect and warping-induced long-term prestress loss due to creep are investigated in this paper. Both phenomena were analyzed deterministically and stochastically. The random character of concrete creep and environmental factors have sub- stantial effects on the statistical scatter of the total prestress loss. To obtain the real development of concrete long-term performance, sophisti- cated models for concrete creep and shrinkage prediction were used. The Monte Carlo–Latin hypercube sampling method was applied to capture the statistical variability of boundary and environmental conditions. It is shown that the severity of cross-section warping can be im- portant, particularly in the case of short spans and unevenly distributed and isolated tendons in a cross section. The three-dimensional effects and the statistical variability of creep are considered to enable reliable design of box girder bridges.

Název v anglickém jazyce

Probabilistic Analysis of Prestress Loss due to Creep in Concrete Box Girders

Popis výsledku anglicky

The cross-section warping effect and warping-induced long-term prestress loss due to creep are investigated in this paper. Both phenomena were analyzed deterministically and stochastically. The random character of concrete creep and environmental factors have sub- stantial effects on the statistical scatter of the total prestress loss. To obtain the real development of concrete long-term performance, sophisti- cated models for concrete creep and shrinkage prediction were used. The Monte Carlo–Latin hypercube sampling method was applied to capture the statistical variability of boundary and environmental conditions. It is shown that the severity of cross-section warping can be im- portant, particularly in the case of short spans and unevenly distributed and isolated tendons in a cross section. The three-dimensional effects and the statistical variability of creep are considered to enable reliable design of box girder bridges.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA16-04454S" target="_blank" >GA16-04454S: Nejistoty na materiálové úrovni ovlivňující nejistoty na úrovni konstrukce</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Bridge Engineering

ISSN

1084-0702

e-ISSN

1943-5592

Svazek periodika

22

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

000417472000001

EID výsledku v databázi Scopus

2-s2.0-85029744037