Detail publikačního výsledku

Strengthening under Load: Numerical Study of Flexural Buckling of Columns

VILD, M.; BAJER, M.

Originální název

Strengthening under Load: Numerical Study of Flexural Buckling of Columns

Anglický název

Strengthening under Load: Numerical Study of Flexural Buckling of Columns

Druh

Článek WoS

Originální abstrakt

The paper refers to the strengthening of doubly symmetric columns under load by welded plates. A validated numerical study containing more than 500 models was performed to question the currently used design procedures. These procedures are not unified but vary greatly in different countries. The overly conservative design approach used in the Czech Republic contrasts with the approach completely neglecting the effect of preload commonly used in the USA. The effect of various parameters on the flexural buckling resistance of columns strengthened under load was investigated. The selected parameters were the thickness of the strengthening flange, the column length, the initial bow imperfection, the preload magnitude and the direction of the axis which is pinned while the other axis is fixed. Several conclusions were reached from provided results and a simple analytical method is proposed. The load under which the column is strengthened weakens the column but only slightly.

Anglický abstrakt

The paper refers to the strengthening of doubly symmetric columns under load by welded plates. A validated numerical study containing more than 500 models was performed to question the currently used design procedures. These procedures are not unified but vary greatly in different countries. The overly conservative design approach used in the Czech Republic contrasts with the approach completely neglecting the effect of preload commonly used in the USA. The effect of various parameters on the flexural buckling resistance of columns strengthened under load was investigated. The selected parameters were the thickness of the strengthening flange, the column length, the initial bow imperfection, the preload magnitude and the direction of the axis which is pinned while the other axis is fixed. Several conclusions were reached from provided results and a simple analytical method is proposed. The load under which the column is strengthened weakens the column but only slightly.

Klíčová slova

Column; experiment; finite element analysis; parametric study; steel; strengthening under load

Klíčová slova v angličtině

Column; experiment; finite element analysis; parametric study; steel; strengthening under load

Autoři

VILD, M.; BAJER, M.

Rok RIV

2018

Vydáno

03.06.2017

Nakladatel

Elsevier

Místo

Nizozemsko

ISSN

1877-7058

Periodikum

Procedia Engineering

Svazek

190

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

118

Strany do

125

Strany počet

8

URL

http://dx.doi.org/10.1016/j.proeng.2017.05.316

Plný text v Digitální knihovně

http://hdl.handle.net/11012/69334

BibTex

@article{BUT136600,
  author="Martin {Vild} and Miroslav {Bajer}",
  title="Strengthening under Load: Numerical Study of Flexural Buckling of Columns",
  journal="Procedia Engineering",
  year="2017",
  volume="190",
  number="1",
  pages="118--125",
  doi="10.1016/j.proeng.2017.05.316",
  url="http://dx.doi.org/10.1016/j.proeng.2017.05.316"
}

Dokumenty

1-s2.0-S1877705817324566-main