Model Uncertainties of Advanced Numerical Simulations of Slabs Subjected to Punching
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00232117" target="_blank" >RIV/68407700:21110/15:00232117 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Model Uncertainties of Advanced Numerical Simulations of Slabs Subjected to Punching
Original language description
Advanced numerical simulations are more often used due to the increasing possibilities of computer technology. These models are based on generally valid principles of continuum mechanics, in which nonlinear constitutive relations are employed for material descriptions. Due to the global nature of nonlinear numerical analysis the design condition is based on a global safety format. It is expected that in the near future the reliability of structures will be assessed by use of these sophisticated calculations. For this purpose, it is firstly necessary to evaluate the model uncertainty of the numerical model. Model uncertainty directly affects reliability of the final design. The correctness of its determination is therefore crucial for the safe design of structures. Recommended values of model uncertainties differ in individual scientific literary sources. However recommended values of model uncertainties differ according to individual studies and/or individual programs. In this context it should be noted that model uncertainty has to be evaluated for each program/model separately. In each program it is implemented different formulation of constitutive equations (especially in case of quasi-brittle materials), although these physical laws directly affect the final accuracy of program. Also it is presented method which enables respecting relatively small amount of experiments when the partial safety factor is derived.The presented research deals with the description of uncertainties of numerical models for resistance of punching capacity of slabs. The model uncertainties were identified and subsequently recommendation of safety factor for model uncertainty is proposed.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
JM - Structural engineering
OECD FORD branch
—
Result continuities
Project
<a href="/en/project/TE01020168" target="_blank" >TE01020168: Centre for Effective and Sustainable Transport Infrastructure (CESTI)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing
ISBN
978-1-905088-63-8
ISSN
1759-3433
e-ISSN
—
Number of pages
12
Pages from-to
1-12
Publisher name
Civil-Comp Press Ltd
Place of publication
Stirling
Event location
Praha
Event date
Sep 1, 2015
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
—