INCREASE IN LATERAL–TORSIONAL BUCKLING RESISTANCE OF BEAMS BY APPLICATION OF STIFFENERS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU133754" target="_blank" >RIV/00216305:26110/19:PU133754 - isvavai.cz</a>

Result on the web

<a href="https://www.dec.uc.pt/corass2019/downloads/CoRASS2019_proceedings.pdf" target="_blank" >https://www.dec.uc.pt/corass2019/downloads/CoRASS2019_proceedings.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

INCREASE IN LATERAL–TORSIONAL BUCKLING RESISTANCE OF BEAMS BY APPLICATION OF STIFFENERS

Original language description

The paper focuses on possible types of strengthening of steel beams. Various kinds and numbers of stiffeners, haunches, doublers etc. may be applied to current steel beams. The effectivity varies greatly and must be evaluated in the design. Lateral-torsional buckling is often a very important factor determining the beam resistance. The critical buckling load of plain beams with clearly defined boundary conditions are thoroughly investigated and their design is codified. However, the finite element method finds its use for complicated geometry and semi-rigid supports. Newly developed software using CBFEM (Component Based Finite Element Method) dedicated to a design of steel members including their joints is introduced. Boundary conditions are modelled and there is no need to estimate. Two types of analyzing beam stability are presented: General method, using a combination of materially non-linear analysis and linear buckling analysis, and geometrically and materially non-linear analysis with imperfections. Both analyses show that inclined stiffeners are more effective than vertical transverse stiffeners. The most effective is the first pair of stiffeners and their effectivity decreases with their added numbers. Other dependencies of longitudinal and transverse stiffeners are also quantified in the paper.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2019

Confidentiality

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

Article name in the collection

3rd International Conference on Recent Advances in Nonlinear Design Resilience and Rehabilitation of Structures

ISBN

9789892098388

ISSN

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e-ISSN

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Number of pages

9

Pages from-to

187-195

Publisher name

University of Coimbra, INESC‐C, Portugal

Place of publication

Coimbra

Event location

Coimbra

Event date

Oct 16, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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