Construction drawings - Simplified representation of concrete reinforcement (ISO 3766:2003)

ISO 3766:2003 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 shape and bending schedules.

Zeichnungen für das Bauwesen - Vereinfachte Darstellung von Bewehrungen (ISO 3766:2003)

Diese Internationale Norm legt die Darstellung und Kennzeichnung von Bewehrungen für Stahlbeton- und Spannbetonbauteilen in technischen Zeichnungen fest. Zudem wird ein System für die Auflistung von Bewehrungsstäben festgelegt, das folgende Merkmale umfasst:
¾ das Bemaßungsverfahren,
¾ ein Schlüsselsystem für Stabformen,
¾ eine Anzahl von Vorzugs-Stabformen,
die Formen- und Biegeliste.

Dessins de construction - Représentation simplifiée des armatures de béton (ISO 3766:2003)

Gradbeniške risbe – Poenostavljeno prikazovanje armature (ISO 3766:2003)

General Information

Status
Withdrawn
Publication Date
30-Mar-2004
Withdrawal Date
29-Jun-2004
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
15-Dec-2003
Completion Date
15-Dec-2003

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Standards Content (Sample)

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.
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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

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or

ISO's member body in the country of the requester.
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Published in Switzerland
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.
iv © ISO 2003 – All rights reserved
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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;
© ISO 2003 – All rights reserved 1
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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.
2 © ISO 2003 – All rights reserved
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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
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
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
© ISO 2003 – All rights reserved 3
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SIST EN ISO 3766:2004
ISO 3766:2003(E)
Table 1 (continued)
No. Description Representation
Bars joined by mechanical couplers —
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
4 © ISO 2003 – All rights reserved
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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
...

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