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Design per EN 1993-1-1
Eurocode 3: Design of Steel Structures - Part 1-1: General
Rules and Rules for Buildings
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The steel checks according to EN
1993-1-1 can be used for polygonal beam sections
made of construction steel as per EN 1993-1-1, Table 3.1.
Currently, the checks are available for the following
documents:
| 1. |
EN 1993-1-1:2009 |
Basic Document |
2.
| ÖNORM EN 1993-1-1:2007 |
National Annex Austria |
| 3. |
DIN EN 1993-1-1:2010 |
National Annex Germany |
| 4. |
SS EN 1993-1-1:2010 |
National Annex Sweden |
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Actions, Design Situations
The checks are carried out after the static
calculation. For this purpose the calculated load cases are assigned
to the actions in accordance with EN 1991:2002, Part 1.
Taking into account the preset safety factors and combination coefficients,
defined in EN 1990:2010, the program automatically
calculates the internal forces for the desired design situations. |
Actions and design situations
Determination of the cross-section class
Representation of the system utilization
Maximal cross-section utilization
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Classification of Cross-Sections
For every set of internal forces the
cross-section class according to EN 1993-1-1, Chapter 5.5, is
automatically determined. To this end, the stress distribution for simultaneous
stress from biaxial bending and normal force in the center line
of the section parts is used.
A cross-section is generally classified by the most unfavorable
class of its pressure-loaded section parts.
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Cross-Section Resistance
The elastic cross-section resistance is verified
for all cross-sections of the classes 1 to 4. Cross-sections of
class 4 are treated like class 3 if the c/t ratio does not
exceed the limits of class 3 increased by a factor according to
Chapter 5.5.2(9). Otherwise the check is carried out with
effective cross-section properties as per EN 1993-1-5, clause
4.3.
The plastic cross-section resistance will be verified for all
cross-sections of the classes 1 and 2 if the elastic
cross-section resistance of the contemplated set of internal
forces is exceeded. |
Utilization, Results
The utilization is defined as the ratio between
the action Ed and, depending on the user selection, the elastic
or plastic resistance Rd of a cross-section.
The following results are available:
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Utilization of the beams for each situation.
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Maximal utilization of the beams of all
situations.
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Maximal utilization of the sections of all
situations.
Additionally the extremal design values for
internal forces, support reactions, deformations, soil pressures
and stresses are saved for all check situations. The detailed
log also lists the decisive combination internal forces of all
design situations for each result location. |
References:
DIN EN 1993-1-1/NA:2007-10 (Draft)
Nationaler Anhang – National festgelegte Parameter –
(National Annex – Nationally Determined Parameters –)
Eurocode 3: Bemessung und Konstruktion von Stahlbauten –
Teil 1-1: Allgemeine Bemessungsregeln und Regeln für den Hochbau.
(Design of Steel Structures – Part 1-1: General Rules and Rules for
Buildings.)
Publisher: DIN Deutsches Institut für Normung e.V., Berlin.
Beuth Verlag, Berlin 2007.
EN 1990:2002
Eurocode: Grundlagen der Tragwerksplanung. (Basics of Structural
Design.)
Publisher: CEN European Committee for Standardization, Brussels.
Beuth Verlag, Berlin 2002.
EN 1991-1-1:2002
Eurocode 1: Einwirkungen auf Tragwerke –
Teil 1-1: Allgemeine Einwirkungen auf Tragwerke.
Wichten, Eigengewicht und Nutzlasten im Hochbau.
(Actions on Structures – Part 1-1: General Actions. Densities,
Self-Weight, Imposed Loads for Buildings.)
Publisher: CEN European Committee for Standardization, Brussels.
Beuth Verlag, Berlin 2002.
EN 1993-1-1:2005
Eurocode 3: Design of Steel Structures –
Part 1-1: General Rules and Rules for Buildings.
Publisher: CEN European Committee for Standardization, Brussels.
Beuth Verlag, Berlin 2005.
Gardner, L.; Nethercot, D.
Designers' Guide to EN 1993-1-1 –
Eurocode 3: Design of Steel Structures – General Rules and Rules for
Buildings.
Thomas Telford Publishing, London 2005.
Johannsson, J.; Marquoi, R.; Sedlacek, G.; Müller, C.; Beg, D.
Commentary and Worked Examples to EN 1993-1-5 “Plated Structural
Elements”.
JRC – ECSS Joint Report.
First Edition, Office for Official Publications of the European
Communities, Luxembourg 2007.
OENORM B 1990-1:2004-05
Eurocode: Grundlagen der Tragwerksplanung –
Nationale Festlegungen zu ÖNORM EN 1990 Anhang A1:2003. (Basics of
Structural Design - National Specifications for OENORM EN 1990 Annex
A1:2003.)
Publisher: ON Österreichisches Normungsinstitut, Vienna.
Österreichisches Normungsinstitut, Vienna 2004.
OENORM B 1993-1-1:2007-02
Eurocode 3: Bemessung und Konstruktion von Stahlbauten –
Teil 1-1: Allgemeine Bemessungsregeln.
Nationale Festlegungen zu ÖNORM EN 1993-1-1.
(Design of Steel Structures – Part 1-1: General Rules and Rules for
Buildings. National Specifications for OENORM EN 1993-1-1.)
Publisher: ON Österreichisches Normungsinstitut, Vienna.
Österreichisches Normungsinstitut, Vienna 2007.
Simoes da Silva, Luis; Simoes, Rui; Gervasio, Helena
Design of Steel Structures.
Publisher: ECCS – European Convention for Constructional Steelwork.
First Edition, Verlag Ernst & Sohn, Berlin 2010.
SS EN 1990:2010-01
Application of SS EN 1990.
Publisher: Swedish Board of Housing, Building and Planning
(Boverket).
Boverket, Karlskrona 2010.
SS EN 1993-1-1:2010-02
Application of SS EN 1993-1-1.
Publisher: Swedish Board of Housing, Building and Planning
(Boverket).
Boverket, Karlskrona 2010.
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