EN 1993-1-8:2024
(Main)Eurocode 3 - Design of steel structures - Part 1-8: Joints
Eurocode 3 - Design of steel structures - Part 1-8: Joints
1.1 Scope of FprEN 1993-1-8
(1) FprEN 1993-1-8 provides rules for structural design of joints subject to predominantly static loading using all steel grades from S235 up to and including S700, unless otherwise stated in individual clauses.
NOTE As an alternative to the design rules provided in Clause 9, the design rules given in CEN/TR 1993-1-801 "Eurocode 3: Design of steel structures - Part 1 801: Hollow section joints design according to the component method" can be used.
(2) The provisions in this document apply to steels complying with the requirements given in EN 1993 1 1 and to material thickness greater than or equal to 3 mm, unless otherwise stated in individual clauses.
1.2 Assumptions
(1) Unless specifically stated, EN 1990, EN 1991 (all parts) and the other relevant parts of EN 1993-1 (all parts) apply.
(2) The design methods given in FprEN 1993-1-8 are applicable if:
- the execution quality is as specified in EN 1090-2,
and
- the construction materials and products used are as specified in the relevant parts of EN 1993 (all parts), or in the relevant material and product specifications.
Eurocode 3 - Bemessung und Konstruktion von Stahlbauten - Teil 1-8: Anschlüsse
1.1 Anwendungsbereich von EN 1993 1 8
(1) EN 1993 1 8 enthält Regeln für die Tragwerksplanung von Anschlüssen aus Stahl mit allen Stahlsorten von S235 bis einschließlich S700 unter vorwiegend ruhender Belastung, sofern in einzelnen Abschnitten nicht anders angegeben.
ANMERKUNG Alternativ zu den Bemessungsregeln aus Abschnitt 9 können auch die Bemessungsregeln aus CEN/TS 1993 1 8010F0F „Eurocode 3: Bemessung und Konstruktion von Stahlbauten — Teil 1 801: Bemessung und Konstruktion von Anschlüssen mit Hohlprofilen entsprechend der Komponentenverfahren“ verwendet werden.
(2) Die Bestimmungen in diesem Dokument gelten für Stähle, die den Anforderungen aus EN 1993 1 1 entsprechen, und für Materialdicken größer oder gleich 3 mm, sofern in den jeweiligen Abschnitten nicht anders angegeben.
1.2 Annahmen
(1) Sofern nicht ausdrücklich angegeben, gelten EN 1990, EN 1991 (alle Teile) und die entsprechenden Teile von EN 1993 1 (alle Teile).
(2) Die Bemessungsverfahren nach EN 1993 1 8 sind anwendbar, wenn:
— die Qualität der Ausführung den Vorgaben aus EN 1090 2 entspricht,
und
— die verwendeten Baustoffe und -produkte den entsprechenden Teilen der EN 1993 (alle Teile) oder den entsprechenden Material- und Produktspezifikationen entsprechen.
Eurocode 3 - Calcul des structures en acier - Partie 1-8 : Assemblages
1.1 Domaine d'application du FprEN 1993-1-8
(1) Le FprEN 1993-1-8 fourni des règles pour le calcul structural d'assemblages soumis à un chargement essentiellement statique en utilisant toutes les nuances d'acier de S235 jusqu'à S700 inclus, sauf indication contraire dans certains paragraphes.
NOTE En alternative aux règles de calcul prévues à l'article 9, les règles de calcul données dans le document CEN/TR 1993-1-801 "Eurocode 3 : Calcul des structures en acier - Partie 1-801 : Calcul des assemblages de profils creux selon la méthode des composants" peuvent être utilisées.
(2) Les dispositions du présent document s'appliquent aux aciers conformes aux exigences de l'EN 1993-1-1 et aux épaisseurs de matériau supérieures ou égales à 3 mm, sauf indication contraire dans les clauses individuelles.
1.2 Hypothèses
(1) L'EN 1990, l'EN 1991 (toutes les parties) et les autres parties pertinentes de l'EN 1993-1 (toutes les parties) s'appliquent, sauf indications particulières.
(2) Les méthodes de calcul données dans le FprEN 1993-1-8 sont applicables si :
- la qualité de l’exécution est telle que spécifiée dans l'EN 1090 2, et
- les matériaux et produits de construction utilisés sont tels que spécifiés dans les parties correspondantes de l'EN 1993 (toutes les parties) ou dans les spécifications de matériaux et produits appropriées.
Evrokod 3 - Projektiranje jeklenih konstrukcij - 1-8. del: Spoji
1.1 Področje uporabe standarda EN 1993-1-8
(1) Ta dokument podaja metode za projektiranje spojev, izpostavljenih pretežno statični obremenitvi z uporabo vseh razredov jekla od S235 do vključno S700, razen če je v posameznih točkah drugače navedeno.
1.2 Predpostavke
(1) Predpostavke standardov EN 1990 in EN 1993-1-1 se uporabljajo tudi za ta dokument.
(2) Metode za projektiranje, podane v tem delu standarda EN 1993, se uporabljajo, če je kakovost gradnje takšna, kot je določeno v standardu EN 1090-2 ali EN 1090-4, ter so uporabljeni gradbeni materiali in izdelki iz ustreznih delov standarda EN 1993 ali ustreznih specifikacij za materiale in izdelke.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 1993-1-8:2024
01-julij-2024
Nadomešča:
SIST EN 1993-1-8:2005
SIST EN 1993-1-8:2005/AC:2009
Evrokod 3 - Projektiranje jeklenih konstrukcij - 1-8. del: Spoji
Eurocode 3 - Design of steel structures - Part 1-8: Joints
Eurocode 3 - Bemessung und Konstruktion von Stahlbauten - Teil 1-8: Anschlüsse
Eurocode 3 - Calcul des structures en acier - Partie 1-8 : Assemblages
Ta slovenski standard je istoveten z: EN 1993-1-8:2024
ICS:
91.010.30 Tehnični vidiki Technical aspects
91.080.13 Jeklene konstrukcije Steel structures
SIST EN 1993-1-8:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
SIST EN 1993-1-8:2024
SIST EN 1993-1-8:2024
EN 1993-1-8
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2024
EUROPÄISCHE NORM
ICS 91.010.30; 91.080.13 Supersedes EN 1993-1-8:2005
English Version
Eurocode 3 - Design of steel structures - Part 1-8: Joints
Eurocode 3 - Calcul des structures en acier - Partie 1-8 : Eurocode 3 - Bemessung und Konstruktion von
Assemblages Stahlbauten - Teil 1-8: Anschlüsse
This European Standard was approved by CEN on 1 January 2024.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1993-1-8:2024 E
worldwide for CEN national Members.
SIST EN 1993-1-8:2024
Contents Page
European foreword . 6
0 Introduction . 8
1 Scope . 11
2 Normative references . 11
3 Terms, definitions and symbols . 11
3.1 Terms and definitions . 11
3.2 Symbols and abbreviations . 13
4 Basis of design . 33
4.1 General rules . 33
4.1.1 Basic requirements . 33
4.1.2 Additional requirements. 33
4.2 Design assumptions . 33
4.3 Structural properties of joints . 34
4.3.1 General. 34
4.3.2 Partial factors . 34
4.4 Hybrid connections . 35
4.5 Joints loaded in shear subject to impact, vibration and/or load reversal . 35
4.6 Eccentricity at intersections . 35
5 Connections using bolts, rivets or pins . 36
5.1 Bolts, nuts and washers . 36
5.1.1 Property classes . 36
5.1.2 Preloaded bolts . 36
5.2 Rivets . 37
5.3 Anchor bolts and fasteners between steel and concrete . 37
5.4 Bolted connections . 37
5.4.1 Categories of bolted connections . 37
5.4.2 Injection bolts . 38
5.4.3 Hybrid connections . 38
5.4.4 Connections with lug angles. 38
5.5 Pin connections . 40
5.6 Riveted connections . 41
5.7 Design criteria . 41
5.7.1 Design criteria for bolted connections . 41
5.7.2 Design criteria for connections with injection bolts . 43
5.7.3 Design criteria for pin connections . 44
5.7.4 Design criteria for riveted connections . 46
5.8 Positioning of holes for bolts and rivets . 47
5.9 Design resistance of individual fasteners subject to shear, bearing and/or tension . 49
5.9.1 Rivets, and bolts in normal round or slotted holes . 49
5.9.2 Fit bolts . 53
5.9.3 Bolts in tapped holes . 54
5.9.4 Injection bolts . 55
5.9.5 Prying forces . 56
5.9.6 Fasteners between steel and concrete . 56
5.10 Design slip resistance of individual preloaded bolts . 56
SIST EN 1993-1-8:2024
5.10.1 General . 56
5.10.2 Combined tension and shear . 57
5.11 Design resistance of a group of fasteners loaded in bearing type connections subject
to axial force . 58
5.12 Design resistance of a group of fasteners in slip-resistant connections subject to
axial force . 59
5.13 Design resistance of Category A, B, and C connections subject to bending and axial
force . 59
5.14 Design block tearing resistance . 60
5.15 Design resistance of angles connected by one leg and other asymmetrically
connected members in tension . 62
6 Welded connections . 63
6.1 General . 63
6.2 Welding consumables . 63
6.3 Geometry and dimensions. 63
6.3.1 Type of weld . 63
6.3.2 Fillet welds . 64
6.3.3 Fillet welds all round . 66
6.3.4 Butt welds . 66
6.3.5 Plug welds . 66
6.3.6 Flare groove welds . 66
6.4 Welds with packings . 67
6.5 Design resistance of fillet welds . 68
6.5.1 Length of welds . 68
6.5.2 Design throat thickness . 68
6.5.3 Design resistance of fillet welds . 69
6.6 Design resistance of fillet welds all round . 72
6.7 Design resistance of butt welds . 72
6.7.1 Full penetration butt welds . 72
6.7.2 Partial penetration butt welds . 72
6.7.3 T-butt joints . 73
6.8 Design resistance of plug welds . 73
6.9 Distribution of forces . 73
6.10 Connections to unstiffened flanges . 74
6.11 Design resistance of long joints . 76
6.12 Eccentrically loaded single-sided fillet or single-sided partial penetration butt welds . 76
6.13 Angles connected by one leg . 77
6.14 Welding in cold-formed zones . 77
7 Structural analysis . 78
7.1 Global analysis . 78
7.1.1 General . 78
7.1.2 Elastic global analysis . 78
7.1.3 Rigid-plastic global analysis . 79
7.1.4 Elastic-plastic global analysis . 80
7.1.5 Global analysis of hollow section lattice girders . 80
7.2 Modelling of beam-to-column joints . 82
7.2.1 Scope of application . 82
7.2.2 General approach . 83
7.2.3 Simplified approach . 84
7.2.4 Design moment-rotation curve . 86
7.2.5 Moment resistance . 87
7.2.6 Rotational stiffness . 87
SIST EN 1993-1-8:2024
7.2.7 Rotation capacity . 88
7.3 Classification of joints . 88
7.3.1 General. 88
7.3.2 Classification by rotational stiffness . 88
7.3.3 Classification by moment resistance . 90
8 Structural joints connecting H or I sections . 92
8.1 General. 92
8.2 Structural properties . 97
8.3 Equivalent T-stub in tension . 98
8.3.1 Application . 98
8.3.2 Modes of failure . 98
8.3.3 Total effective length . 98
8.3.4 Design tension resistance . 98
8.3.5 Stiffness coefficient . 101
8.3.6 Individual bolt rows, bolt groups and groups of bolt rows. 101
8.4 Equivalent T-stub in compression . 101
8.4.1 Application . 101
8.4.2 Total effective length and width . 101
8.4.3 Design compression resistance . 102
8.4.4 Stiffness coefficient . 103
9 Hollow section joints . 104
9.1 General. 104
9.2 Parameters for hollow section joints . 104
9.3 Specific requirements . 107
9.4 Design . 108
9.4.1 General. 108
9.4.2 Failure modes for hollow section joints . 112
9.5 Design resistance of welds . 116
9.6 Welded joints between brace members and CHS chords . 116
9.6.1 General. 116
9.6.2 Uniplanar joint configurations . 117
9.6.3 Multiplanar joint configurations . 123
9.7 Welded joints between plates, CHS or RHS brace members, and RHS chord members . 124
9.7.1 General. 124
9.7.2 Uniplanar joint configurations . 125
9.7.3 Multiplanar joint configurations . 136
9.8 Welded joints between CHS or RHS brace members, and I or H section chords . 137
9.9 Welded overlap joints between CHS or RHS brace members, and CHS, RHS, I, H or
channel section chord members . 141
Annex A (normative) Structural properties of basic components . 146
A.1 Use of this annex . 146
A.2 Scope and field of application . 146
A.3 General. 146
A.4 Column web panel in shear . 146
A.5 Column web in transverse compression . 152
A.6 Column web in transverse tension . 156
A.7 Column flange in bending . 158
A.8 End plate in bending . 163
SIST EN 1993-1-8:2024
A.9 Flange cleat in bending . 167
A.10 Beam or column flange and web in compression . 169
A.11 Beam or column web in tension . 169
A.12 Plate in tension or compression . 170
A.13 Bolts in tension . 170
A.14 Bolts in shear . 170
A.15 Bearing at bolt holes . 171
A.16 Concrete and base plate in compression . 173
A.17 Base plate in bending under tension . 173
A.18 Anchor bolt in tension. 174
A.19 Fasteners between steel and concrete in tension . 175
A.20 Anchor bolts in shear . 176
A.21 Fasteners between steel and concrete in shear . 176
A.22 Welds . 176
A.23 Beam haunch in compression . 177
Annex B (normative) Design of moment-resisting beam-to-column joints and splices . 178
B.1 Use of this annex . 178
B.2 Scope and field of application . 178
B.3 Design resistance . 178
B.4 Rotational stiffness . 185
B.5 Rotation capacity . 189
Annex C (normative) Design of nominally pinned connections . 192
C.1 Use of this annex . 192
C.2 Scope and field of application . 192
C.3 Ductility and rotation capacity requirements. 193
C.4 Design resistances . 196
Annex D (normative) Design of column bases. 208
D.1 Use of this annex . 208
D.2 Scope and field of application . 208
D.3 Design of column bases with anchor bolts . 209
D.4 Design resistance of column bases with fasteners between steel and concrete . 213
Bibliography . 215
SIST EN 1993-1-8:2024
European foreword
This document (EN 1993-1-8:2024) has been prepared by Technical Committee CEN/TC 250 “Structural
Eurocodes”, the secretariat of which is held by BSI. CEN/TC 250 is responsible for all Structural
Eurocodes and has been assigned responsibility for structural and geotechnical design matters by CEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2027 and conflicting national standards shall
be withdrawn at the latest by March 2028.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1993-1-8:2005 and its amendments and corrigenda.
The first generation of EN Eurocodes was published between 2002 and 2007. This document forms part
of the second generation of the Eurocodes, which have been prepared under Mandate M/515 issued to
CEN by the European Commission and the European Free Trade Association.
The Eurocodes have been drafted to be used in conjunction with relevant execution, material, product
and test standards, and to identify requirements for execution, materials, products and testing that are
relied upon by the Eurocodes.
The Eurocodes recognize the responsibility of each Member State and have safeguarded their right to
determine values related to regulatory safety matters at national level through the use of National
Annexes.
The main changes compared to the previous edition are listed below:
— the Scope was extended to steel grades up to S700;
— the Scope was extended to the design of nominally pinned connections;
— new provisions for the design and fabrication of connections with bolts in threaded holes;
— new provisions for the design of butt welds in steel grades higher than S460;
— new provisions for the design of column bases with fasteners between steel and concrete;
— revision of the Table of contents, with four Normative Annexes (A-D) summarizing (A) the structural
properties of basic components; (B) provisions for the design of moment-resisting beam-to-column
joints and splices; (C) provisions for the design of nominally pinned connections (new); and (D)
provisions for the design of column bases;
— a non-linear model to calculate the deformation of the bolt hole due to bearing of fasteners against
the plate was introduced, including a revised formulation for the design value of bearing resistance;
— revision of the requirements for the design of a group of fasteners in bearing-type connections;
— an alternative method for the verification of the design resistance of welds explicitly accounting for
the filler material properties was introduced;
— revision of the requirements for the design of pins;
— revision of the requirements for the evaluation of the design resistance and stiffness coefficients of
the component “column web panel in shear”;
— revision and clarification of the design tables for hollow section joints.
SIST EN 1993-1-8:2024
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
SIST EN 1993-1-8:2024
0 Introduction
0.1 Introduction to the Eurocodes
The Structural Eurocodes comprise the following standards generally consisting of a number of Parts:
— EN 1990, Eurocode: Basis of structural and geotechnical design
— EN 1991, Eurocode 1: Actions on structures
— EN 1992, Eurocode 2: Design of concrete structures
— EN 1993, Eurocode 3: Design of steel structures
— EN 1994, Eurocode 4: Design of composite steel and concrete structures
— EN 1995, Eurocode 5: Design of timber structures
— EN 1996, Eurocode 6: Design of masonry structures
— EN 1997, Eurocode 7: Geotechnical design
— EN 1998, Eurocode 8: Design of structures for earthquake resistance
— EN 1999, Eurocode 9: Design of aluminium structures
— New parts are under development, e.g. Eurocode for design of structural glass.
0.2 Introduction to EN 1993
EN 1993 (all parts) applies to the design of buildings and civil engineering works in steel. It complies with
the principles and requirements for the safety and serviceability of structures, the basis of their design
and verification that are given in EN 1990 — Basis of structural and geotechnical design.
EN 1993 (all parts) is concerned only with requirements for resistance, serviceability, durability and fire
resistance of steel structures. Other requirements, e.g. concerning thermal or sound insulation, are not
covered.
EN 1993 is subdivided in various parts:
EN 1993-1, Design of Steel Structures — Part 1: General rules and rules for buildings;
EN 1993-2, Design of Steel Structures — Part 2: Bridges;
EN 1993-3, Design of Steel Structures — Part 3: Towers, masts and chimneys;
EN 1993-4, Design of Steel Structures — Part 4: Silos and tanks;
EN 1993-5, Design of Steel Structures — Part 5: Piling;
EN 1993-6, Design of Steel Structures — Part 6: Crane supporting structures;
EN 1993-7, Design of Steel Structures — Part 7: Sandwich panels.
EN 1993-1 in itself does not exist as a physical document, but comprises the following 14 separate parts,
the basic part being EN 1993-1-1:
EN 1993-1-1, Design of Steel Structures — Part 1-1: General rules and rules for buildings;
EN 1993-1-2, Design of Steel Structures — Part 1-2: Structural fire design;
SIST EN 1993-1-8:2024
EN 1993-1-3, Design of Steel Structures — Part 1-3: Cold-formed members and sheeting;
NOTE Cold-formed welded hollow sections supplied according to EN 10219 (all parts) are covered in
EN 1993-1-1.
EN 1993-1-4, Design of Steel Structures — Part 1-4: Stainless steel structures;
EN 1993-1-5, Design of Steel Structures — Part 1-5: Plated structural elements;
EN 1993-1-6, Design of Steel Structures — Part 1-6: Strength and stability of shell structures;
EN 1993-1-7, Design of Steel Structures — Part 1-7: Plate assemblies with elements under transverse loads;
EN 1993-1-8, Design of Steel Structures — Part 1-8: Joints;
EN 1993-1-9, Design of Steel Structures — Part 1-9: Fatigue;
EN 1993-1-10, Design of Steel Structures — Part 1-10: Material toughness and through-thickness
properties;
EN 1993-1-11, Design of Steel Structures — Part 1-11: Tension components;
EN 1993-1-12, Design of Steel Structures — Part 1-12: Additional rules for steel grades up to S960;
EN 1993-1-13, Design of Steel Structures — Part 1-13: Beams with large web openings;
EN 1993-1-14, Design of Steel Structures — Part 1-14: Design assisted by finite element analysis.
All parts numbered EN 1993-1-2 to EN 1993-1-14 treat general topics that are independent from the
structural type like structural fire design, cold-formed members and sheeting, stainless steel structures,
plated structural elements, etc.
All parts numbered EN 1993-2 to EN 1993-7 treat topics relevant for a specific structural type like steel
bridges, towers, masts and chimneys, silos and tanks, piling, crane supporting structures, etc. EN 1993-2
to EN 1993-7 refer to the generic rules in EN 1993-1 and supplement, modify or supersede them.
0.3 Introduction to EN 1993-1-8
EN 1993-1-8 gives rules for the design of joints in steel structures. It includes rules for resistance,
stiffness, and deformation capacity of components and recommendations for the properties to be used in
analyses. It assumes that the execution of its provisions follows the requirements given in EN 1090-2.
0.4 Verbal forms used in the Eurocodes
The verb “shall” expresses a requirement strictly to be followed and from which no deviation is permitted
in order to comply with the Eurocodes.
The verb “should” expresses a highly recommended choice or course of action. Subject to national
regulation and/or any relevant contractual provisions, alternative approaches could be used/adopted
where technically justified.
The verb “may” expresses a course of action permissible within the limits of the Eurocodes.
The verb “can” expresses possibility and capability; it is used for statements of fact and clarification of
concepts.
SIST EN 1993-1-8:2024
0.5 National Annex for EN 1993-1-8
National choice is allowed in this document where explicitly stated within notes. National choice includes
the selection of values for Nationally Determined Parameters (NDPs).
The national standard implementing EN 1993-1-8 can have a National Annex containing all national
choices to be used for the design of buildings and civil engineering works to be constructed in the relevant
country.
When no national choice is given, the default choice given in this document is to be used.
When no national choice is made and no default is given in this document, the choice can be specified by
a relevant authority or, where not specified, agreed for a specific project by appropriate parties.
National choice is allowed in EN 1993-1-8 through notes to the following clauses:
4.2(4) 4.3.1(2) 4.3.2(1) 5.1.1(3)
5.2(1) 5.9.3(1) 5.9.3(3) 6.2(3)
7.3.1(1) 9.1(5) 9.1(5) A.17.1(2)
B.3.2.2(9) C.2(5)
The National Annex can contain, directly or by reference, non-contradictory complementary information
for ease of implementation, provided it does not alter any provisions of the Eurocodes.
SIST EN 1993-1-8:2024
1 Scope
1.1 Scope of EN 1993-1-8
(1) EN 1993-1-8 provides rules for structural design of joints subject to predominantly static loading
using all steel grades from S235 up to and including S700, unless otherwise stated in individual clauses.
NOTE As an alternative to the design rules provided in Clause 9, the design rules given in CEN/TS 1993-1-801
“Eurocode 3: Design of steel structures — Part 1-801: Hollow section joints design according to the component
method” can be used.
(2) The provisions in this document apply to steels complying with the requirements given in
EN 1993-1-1 and to material thickness greater than or equal to 3 mm, unless otherwise stated in
individual clauses.
1.2 Assumptions
(1) Unless specifically stated, EN 1990, EN 1991 (all parts) and the other relevant parts of EN 1993-1 (all
parts) apply.
(2) The design methods given in EN 1993-1-8 are applicable if:
— the execution quality is as specified in EN 1090-2,
and
— the construction materials and products used are as specified in the relevant parts of EN 1993 (all
parts), or in the relevant material and product specifications.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1090-2:2018, Execution of steel structures and aluminium structures — Part 2: Technical requirements
for steel structures
EN 1990, Eurocode — Basis of structural and geotechnical design
EN 1991 (all parts), Eurocode 1 — Actions on structures
EN 1993 (all parts), Eurocode 3 — Design of steel structures
EN 1993-1-1:2022, Eurocode 3 — Design of steel structures — Part 1-1: General rules and rules for
buildings
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1993-1-1 and the following
apply.
Under preparation. Stage at the time of publication: prCEN/TS 1993-1-801.
SIST EN 1993-1-8:2024
3.1.1
joint
zone where two members are interconnected
3.1.2
joint configuration
type or layout of the joint or joints in a zone within which the axes of two or more inter-connected
members intersect
Note 1 to entry: See Figure 3.1 and Figure 8.1.
Note 2 to entry: An in-plane major-axis beam-to-column joint consists of a web panel and either one connection
(single-sided joint configuration) or two connections (double-sided joint configuration).
Joint = web panel in shear + connection Left Joint = web panel in shear + left connection
Right joint = web panel in shear + right connection
a) Single-sided joint configuration b) Double-sided joint configuration
Key
1 web panel in shear
2 connection
3 components (e.g. bolts, end plate)
4 supported member
Figure 3.1 — Parts of a major-axis beam-to-column joint configuration
3.1.3
connection
set of components used to transfer forces and/or moments at the interface of the two connected members
in a joint
3.1.4
connected member
any member that is joined to another member
3.1.5
basic component
basic component of a joint
part of a joint that makes a contribution to one or more of its structural properties
SIST EN 1993-1-8:2024
3.1.6
structural properties
structural properties of a joint
resistance to internal forces and moments in the connected members, rotational stiffness and rotation
capacity
3.1.7
rotational stiffness
moment required to produce a unit rotation in a joint
3.1.8
rotation capacity
angle through which the joint can rotate for a given plastic resistance
3.1.9
injection bolt
special bolt that allows filling of the clearance between the bolt and the inside surface of the hole by
injecting resin through a small hole in the head of the bolt
3.1.10
uniplanar joint
joint that connects members in a lattic
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.