Numerical Modeling of Axially Compressed Circular Concrete Columns

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00343671" target="_blank" >RIV/68407700:21110/21:00343671 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.engstruct.2020.111445" target="_blank" >https://doi.org/10.1016/j.engstruct.2020.111445</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.engstruct.2020.111445" target="_blank" >10.1016/j.engstruct.2020.111445</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical Modeling of Axially Compressed Circular Concrete Columns

Popis výsledku v původním jazyce

Concrete compressive strength and ductility are strongly affected by the level of confinement and significantly improve with its magnitude. In concrete columns such enhancement can be achieved by properly designed transverse reinforcement. The behavior under axial loading can be accurately described by numerous models from the literature or more conservatively using the design codes; however, their applicability is rather limited to the most common reinforcement layouts and very often to monotonous axial compression. This deficiency can be eliminated by incorporating nonlinear finite element simulations, which allow for arbitrary loading configuration and topology, into the design process. In this paper an advanced constitutive model Concrete Damage-Plastic Model (CDPM~2) by Grassl and coworkers is thoroughly compared against the experimental data from the literature on confined concrete. Subsequently, based on numerical simulations of axially compressed circular columns with various alternatives of reinforcement it is shown that the results are inconsistent with the generally accepted assumptions incorporated into the design codes in the case of spiral reinforcement but perfectly match when the circular hoops are used.

Název v anglickém jazyce

Numerical Modeling of Axially Compressed Circular Concrete Columns

Popis výsledku anglicky

Concrete compressive strength and ductility are strongly affected by the level of confinement and significantly improve with its magnitude. In concrete columns such enhancement can be achieved by properly designed transverse reinforcement. The behavior under axial loading can be accurately described by numerous models from the literature or more conservatively using the design codes; however, their applicability is rather limited to the most common reinforcement layouts and very often to monotonous axial compression. This deficiency can be eliminated by incorporating nonlinear finite element simulations, which allow for arbitrary loading configuration and topology, into the design process. In this paper an advanced constitutive model Concrete Damage-Plastic Model (CDPM~2) by Grassl and coworkers is thoroughly compared against the experimental data from the literature on confined concrete. Subsequently, based on numerical simulations of axially compressed circular columns with various alternatives of reinforcement it is shown that the results are inconsistent with the generally accepted assumptions incorporated into the design codes in the case of spiral reinforcement but perfectly match when the circular hoops are used.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA19-25312S" target="_blank" >GA19-25312S: Tlakové testy se sevřením pro pokročilé modelování betonových sloupů</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Engineering Structures

ISSN

0141-0296

e-ISSN

1873-7323

Svazek periodika

227

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

—

Kód UT WoS článku

000600847500001

EID výsledku v databázi Scopus

2-s2.0-85095436997