General method for I-section stainless steel beam-columns

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00369209" target="_blank" >RIV/68407700:21110/23:00369209 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/cepa.2429" target="_blank" >https://doi.org/10.1002/cepa.2429</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cepa.2429" target="_blank" >10.1002/cepa.2429</a>

Jazyk výsledku

angličtina

Název v původním jazyce

General method for I-section stainless steel beam-columns

Popis výsledku v původním jazyce

A significant progress in the development of stainless steel design procedures which were implemented also in new design standards proposals, e.g. prEN 1993-1-4:2021 and AISI 370-21, has been going on in the last 15 years. For compressed members, buckling curves were revised and beam-column interaction formulas were published for hollow and open sections. Buckling curve was significantly improved for double-symmetrical I section beams. The Continuous Strength Method was introduced in the code. Also, a verification procedure using a plastic global analysis was developed and implemented in design procedures very recently. However, clear design rules for geometrically non-linear analysis with equivalent member and structural imperfections need further research. This approach, known also as the general method, became a very popular method for carbon steel structures, but cannot be used for slender stainless steel structures without modification. The stainless steel nonlinear stress strain diagram leads to a reduction of the bending stiffness and thus higher second-order effect, which needs to be covered in the procedure. In this research, a comparison is made on numerical parametric studies. Limits will be set for the applicability of the carbon steel design procedures and a preliminary recommendation for general method of stainless steel members will be presented.

Název v anglickém jazyce

General method for I-section stainless steel beam-columns

Popis výsledku anglicky

A significant progress in the development of stainless steel design procedures which were implemented also in new design standards proposals, e.g. prEN 1993-1-4:2021 and AISI 370-21, has been going on in the last 15 years. For compressed members, buckling curves were revised and beam-column interaction formulas were published for hollow and open sections. Buckling curve was significantly improved for double-symmetrical I section beams. The Continuous Strength Method was introduced in the code. Also, a verification procedure using a plastic global analysis was developed and implemented in design procedures very recently. However, clear design rules for geometrically non-linear analysis with equivalent member and structural imperfections need further research. This approach, known also as the general method, became a very popular method for carbon steel structures, but cannot be used for slender stainless steel structures without modification. The stainless steel nonlinear stress strain diagram leads to a reduction of the bending stiffness and thus higher second-order effect, which needs to be covered in the procedure. In this research, a comparison is made on numerical parametric studies. Limits will be set for the applicability of the carbon steel design procedures and a preliminary recommendation for general method of stainless steel members will be presented.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

EUROSTEEL Amsterdam 2023

ISBN

—

ISSN

2509-7075

e-ISSN

2509-7075

Počet stran výsledku

6

Strana od-do

2671-2676

Název nakladatele

Ernst & Sohn

Místo vydání

Berlin

Místo konání akce

Amsterdam

Datum konání akce

12. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—