SIST EN ISO 3766:2004

SLOVENSKI STANDARD
SIST EN ISO 3766:2004
01-februar-2004
1DGRPHãþD
SIST EN ISO 3766:2002
Gradbeniške risbe – Poenostavljeno prikazovanje armature (ISO 3766:2003)
Construction drawings - Simplified representation of concrete reinforcement (ISO
3766:2003)
Zeichnungen für das Bauwesen - Vereinfachte Darstellung von Bewehrungen (ISO
3766:2003)
Dessins de construction - Représentation simplifiée des armatures de béton (ISO
3766:2003)
Ta slovenski standard je istoveten z: EN ISO 3766:2003
ICS:
01.100.30 *UDGEHQLQDþUWL Construction drawings
SIST EN ISO 3766:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 3766:2004

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SIST EN ISO 3766:2004
EUROPEAN STANDARD
EN ISO 3766
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2003
ICS 01.100.30 Supersedes EN ISO 3766:1999
English version
Construction drawings - Simplified representation of concrete
reinforcement (ISO 3766:2003)
Dessins de construction - Représentation simplifiée des Zeichnungen für das Bauwesen - Vereinfachte Darstellung
armatures de béton (ISO 3766:2003) von Bewehrungen (ISO 3766:2003)
This European Standard was approved by CEN on 3 November 2003.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3766:2003 E
worldwide for CEN national Members.

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SIST EN ISO 3766:2004
EN ISO 3766:2003 (E)
CORRECTED  2004-03-03
Foreword
This document (EN ISO 3766:2003) has been prepared by Technical Committee ISO/TC 10
"Technical drawings, product definition and related documentation" in collaboration with CMC.
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 June 2004, and conflicting national
standards shall be withdrawn at the latest by June 2004.
This document supersedes EN ISO 3766:1999.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and
the United Kingdom.
Endorsement notice
The text of ISO 3766:2003 has been approved by CEN as EN ISO 3766:2003 without any
modifications.
2

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SIST EN ISO 3766:2004


INTERNATIONAL ISO
STANDARD 3766
Third edition
2003-12-15


Construction drawings — Simplified
representation of concrete reinforcement
Dessins de construction — Représentation simplifiée des armatures de
béton




Reference number
ISO 3766:2003(E)
©
ISO 2003

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SIST EN ISO 3766:2004
ISO 3766:2003(E)
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©  ISO 2003
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ii © ISO 2003 – All rights reserved

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SIST EN ISO 3766:2004
ISO 3766:2003(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references. 1
3 Requirements to reinforcement construction drawings. 1
4 Placement information and representation. 2
4.1 Reinforcement without prestressing . 2
4.2 Prestressed reinforcement. 7
5 Marking. 8
6 Bending information for unprestressed reinforcement bars . 8
6.1 General. 8
6.2 Indication of bar shapes. 9
6.3 Coding system (optional). 11
7 Bar schedule. 17
7.1 General. 17
7.2 Shape schedule. 17
7.3 Bending schedule. 17
7.4 Combined schedules. 18
7.5 Title block. 18
Annex A (informative) Mat schedule — Example . 21

© ISO 2003 – All rights reserved iii

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SIST EN ISO 3766:2004
ISO 3766:2003(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 3766 was prepared by Technical Committee ISO/TC 10, Technical product documentation,
Subcommittee SC 8, Construction documentation.
This third edition cancels and replaces the second edition (ISO 3766:1995) and ISO 4066:1994, which have
been technically revised.

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SIST EN ISO 3766:2004
INTERNATIONAL STANDARD ISO 3766:2003(E)

Construction drawings — Simplified representation of concrete
reinforcement
1 Scope
This International Standard specifies the simplified representation and the characterization of reinforcement in
reinforced and in prestressed concrete for use in construction drawings. It also establishes a system for the
scheduling of reinforced bars, comprising
 a method for specifying dimensions,
 a coding system for bar shapes,
 a schedule of preferred shapes, and
 a shape schedule and bending schedule.
2 Normative references
The following referenced documents are indispensable for the application 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.
ISO 128-23:1999, Technical drawings — General principles of presentation — Part 23: Lines on construction
drawings
ISO 10209-4:1999, Technical product documentation — Vocabulary — Part 4: Terms relating to construction
documentation
3 Requirements to reinforcement construction drawings
The construction parts shall be provided with the main dimensions, the concrete reinforcement shall be drawn
and all parts shall be represented unambiguously and clearly in scaled plans, elevations and sections. The
representations shall correspond with the indications in the structural calculations and should, where
applicable, contain all dimensions required for the construction of the members and the verification of the
calculations.
Drawings used for off-site casting and factory production are excepted from this provision.
Reference shall be referred to accessory drawings. For drawings modified later, all concerned drawings shall
be modified as well.
The following characterizations (general information and placement information) of the reinforcement bars
shall be given on the drawing:
 required concrete strength class, the exposure class and further requirements to the concrete given in
reference standards;
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SIST EN ISO 3766:2004
ISO 3766:2003(E)
 type of reinforcing steel and prestressed steel given in reference standards;
 bar mark, number, diameter, shape and position of the reinforcement bars; distance between the bars
and overlap length at joints; arrangement, dimensions and development of welding points by specification
of the joining metal, jarring plates, position of the concreting gap;
 type of the prestressing system; number, type and position of the tendons; number, type and position of
the tendon anchoring and tendon coupling; bar mark, number, diameter, shape and position of the
accessory not prestressed concrete reinforcement; type and diameter of the encasing tubes; specification
of the intrusion grout;
 measures for securing the position of the concrete reinforcement and the tendons (e.g. kind and
arrangement of the bar chairs, as well as arrangement, dimensions and shape for the support of the
upper concrete reinforcement layer and the tendons);
 the layer dimension c which derives from the nominal dimension c of the concrete cover, as well as
V nom
the allowance in design for tolerance ∆c of the concrete cover;
 the joint development;
 special measures for quality assurance, if required.
The following information on bending the reinforcement bars shall be given on the drawing or on separate
documents such as a bar schedule:
 if the shape coding system according to 6.3 is applied, bending shapes of the reinforcement bars shall
refer unambiguously to the shape numbers, hence the graphical representation may be unscaled;
 single length, sectional lengths and, if applicable, bending angles of the reinforcement bars shall be
indicated (for typifying bending shapes, Table 5 shall be taken into account, and in every case the
reference standard mandrel or radii shall be represented on the drawing);
 the mandrel diameters or radii.
Manufacturing tolerances shall be taken into account in dimensioning the reinforcement components, in order
to reach the desired concrete cover in the ready-made structure.
4 Placement information and representation
4.1 Reinforcement without prestressing
The representation and drawing conventions of concrete reinforcements without prestressing shall be in
accordance with Table 1.
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SIST EN ISO 3766:2004
ISO 3766:2003(E)
Table 1 — Representation and drawing conventions of concrete reinforcements without prestressing
No. Description Representation
Views
1
a) General representation of bar by a

continuous extra-wide line
b) Bent reinforcement bar
1) representation as a polygonal

continuous line or

2) representation as a continuous
line made up of straight lines and

arcs
c) Bundle of bars drawn using a single
line, with end markings indicating

number of bars in bundle
EXAMPLE Bundle of three identical bars.
Section of bar
2
a) section of single reinforcement bar

b) bundle of two reinforcement bars

c) bundle of three reinforcement bars


3 Bar with hook anchoring
a) elevation of bar terminating in a 90°

bend

b) elevation of bar terminating in a bend

between 90° and 180°

c) elevation of bar terminating in a 180°

bend

4 Straight bars lying in a row or a plane to
indicate the ends of the bars, showing

corresponding bar marks using narrow line
5 End anchorage with plates
a) elevation or plan view

b) section or end view

6 Bar bent at a right angle away from viewer

7 Bar bent at a right angle towards viewer

8 Overlapping stack of reinforcement bars

a) without marking bar ends by a slash
and bar marks


b) with marking bar ends by a slash and
bar marks


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SIST EN ISO 3766:2004
ISO 3766:2003(E)
Table 1 (continued)
No. Description Representation
Bars joined by mechanical couplers —
9
general representation
a) tension coupler

b) compression coupler

10 Welded fabric, top view (If required, an
oblique stroke crossing the diagonal line
may be used to indicate the direction of the
main reinforcement, as shown here.)

11 Welded fabric, identical sheets in a row
a) with representation of single sheets

b) condensed representation

Overlapping length shall be given on the
drawing
12 Top view of layer containing identical
sheets
a) with representation of single sheets

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SIST EN ISO 3766:2004
ISO 3766:2003(E)
Table 1 (continued)
No. Description Representation
b) condensed representation with
indication of overlapping
Overlapping length shall be given on the
drawing
13 Welded fabric, section
a) simplified representation by a long

dashed dotted extra-wide line
b) conventional representation

14 Set of identical bars
a) each set of identical bars indicated by
one scaled-drawn reinforcement bar
and a line terminated by oblique lines
to mark extreme bars (circle connects

“set line” with correct bar)
b) identical bars placed in groups.

15 Bars with a spe
...