ISO 28842:2013
(Main)Guidelines for simplified design of reinforced concrete bridges
Guidelines for simplified design of reinforced concrete bridges
The purpose of ISO 28842:2013 is to provide sufficient information to perform the design of the structural concrete bridge that complies with the limitations established in ISO 28842:2013. The rules of design as set forth in ISO 28842:2013 are simplifications of more elaborate requirements. ISO 28842:2013 can be used as an alternative to the development of a national concrete bridge design and construction code, or equivalent document in countries where no national design codes are available by themselves, or as an alternative to the national concrete bridge design and construction code in countries where specifically considered and accepted by the national standards body or other appropriate regulatory organization, and applies to the planning, design and construction of structural concrete bridges to be used in new bridges of restricted span length, height of piers, and type.
Lignes directrices pour la conception simplifiée des ponts en béton armé
Smernice za poenostavljeno projektiranje majhnih armiranobetonskih mostov
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 28842
First edition
2013-06-15
Guidelines for the simplified design of
reinforced concrete bridges
Lignes directrices pour la conception simplifiée des ponts en béton
armé
Reference number
©
ISO 2013
© ISO 2013
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.
ISO copyright office
Case postale 56 CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved
Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 13
5 Design and construction procedure . 18
5.1 Procedure . 18
5.2 Design documentation . 20
6 General Guides . 20
6.1 Limitations . 20
6.2 Limit states . 23
6.3 Ultimate limit state design format . 25
6.4 Serviceability limit state design format . 26
7 Structural systems and layout . 26
7.1 Description of the components of the structure . 26
7.2 General program . 27
7.3 Structural layout . 28
7.4 Feasibility under the guidelines . 29
8 Actions (Loads) . 30
8.1 General . 30
8.2 Dead loads . 30
8.3 Live loads . 31
8.4 Longitudinal forces . 33
8.5 Earth pressure . 33
8.6 Wind loads . 34
8.7 Earthquake inertial forces . 34
8.8 Thermal Forces . 44
8.9 Load combinations . 46
9 Design requirements . 46
9.1 Scope . 46
9.2 Additional requirements . 46
9.3 Materials for structural concrete . 47
9.4 Concrete Mixture Proportioning . 48
9.5 Development length, lap splicing and anchorage of reinforcement . 57
9.6 Limits for longitudinal reinforcement . 59
9.7 Minimum amounts of transverse reinforcement . 62
10 Superstructure . 66
10.1 Strength of members subjected to flexural moments . 66
10.2 Strength of members subjected to shear stresses . 72
10.3 Decks . 76
10.4 Solid slabs supported on girders, beams, or joists . 83
10.5 Girders, beams and joists . 103
10.6 Railings . 119
11 Substructure . 120
11.1 Girders that are part of a frame . 120
11.2 Strength of members subjected to axial loads with or without flexure . 128
11.3 Torsion . 132
11.4 Bearing strength . 133
11.5 Columns and Piers . 133
11.6 Concrete walls . 142
12 Foundations . 150
12.1 Foundation type and capacity . 150
12.2 Subsurface exploration and testing programs . 151
12.3 Dimensioning of the foundation elements . 151
12.4 Footings . 151
12.5 Foundation mats . 153
12.6 Footings on piles . 153
12.7 Foundation beams . 154
12.8 Retaining Walls . 154
13 Lateral load resisting system . 163
13.1 General . 163
13.2 Specified lateral forces . 164
13.3 Lateral force resisting structural system . 164
13.4 Minimum amount of structural concrete walls . 164
13.5 Special reinforcement details for seismic zones . 165
14 Bearings . 176
14.1 General . 176
14.2 Multiple roller bearings . 176
14.3 Elastomeric bearings . 177
14.4 Anchorage . 179
14.5 Design forces for supporting structure . 179
Annex A (normative) Equivalent equations for material factors . 181
Annex B (normative) Beam Deflection . 186
Bibliography . 187
iv © ISO 2013 – All rights reserved
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.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of
ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2. www.iso.org/directives
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. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
The committee responsible for this document is ISO/TC 71, Concrete, reinforced concrete and pre-stressed
concrete, Subcommittee SC 5, Simplified design standard for concrete structures.
Introduction
The aim of this International Standard is to provide rules for the design and construction of relatively short
span concrete bridges. This International Standard is developed for countries that do not have existing
national standards on this subject and to offer to local regulatory authorities an alternative for the design of
relatively small bridges that abound in urban overpasses and over creeks and rivers everywhere. This
International Standard shall not be used in place of a national standard unless specifically considered a
...
INTERNATIONAL ISO
STANDARD 28842
First edition
2013-06-15
Guidelines for the simplified design of
reinforced concrete bridges
Lignes directrices pour la conception simplifiée des ponts en béton
armé
Reference number
©
ISO 2013
© ISO 2013
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.
ISO copyright office
Case postale 56 CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved
Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 13
5 Design and construction procedure . 18
5.1 Procedure . 18
5.2 Design documentation . 20
6 General Guides . 20
6.1 Limitations . 20
6.2 Limit states . 23
6.3 Ultimate limit state design format . 25
6.4 Serviceability limit state design format . 26
7 Structural systems and layout . 26
7.1 Description of the components of the structure . 26
7.2 General program . 27
7.3 Structural layout . 28
7.4 Feasibility under the guidelines . 29
8 Actions (Loads) . 30
8.1 General . 30
8.2 Dead loads . 30
8.3 Live loads . 31
8.4 Longitudinal forces . 33
8.5 Earth pressure . 33
8.6 Wind loads . 34
8.7 Earthquake inertial forces . 34
8.8 Thermal Forces . 44
8.9 Load combinations . 46
9 Design requirements . 46
9.1 Scope . 46
9.2 Additional requirements . 46
9.3 Materials for structural concrete . 47
9.4 Concrete Mixture Proportioning . 48
9.5 Development length, lap splicing and anchorage of reinforcement . 57
9.6 Limits for longitudinal reinforcement . 59
9.7 Minimum amounts of transverse reinforcement . 62
10 Superstructure . 66
10.1 Strength of members subjected to flexural moments . 66
10.2 Strength of members subjected to shear stresses . 72
10.3 Decks . 76
10.4 Solid slabs supported on girders, beams, or joists . 83
10.5 Girders, beams and joists . 103
10.6 Railings . 119
11 Substructure . 120
11.1 Girders that are part of a frame . 120
11.2 Strength of members subjected to axial loads with or without flexure . 128
11.3 Torsion . 132
11.4 Bearing strength . 133
11.5 Columns and Piers . 133
11.6 Concrete walls . 142
12 Foundations . 150
12.1 Foundation type and capacity . 150
12.2 Subsurface exploration and testing programs . 151
12.3 Dimensioning of the foundation elements . 151
12.4 Footings . 151
12.5 Foundation mats . 153
12.6 Footings on piles . 153
12.7 Foundation beams . 154
12.8 Retaining Walls . 154
13 Lateral load resisting system . 163
13.1 General . 163
13.2 Specified lateral forces . 164
13.3 Lateral force resisting structural system . 164
13.4 Minimum amount of structural concrete walls . 164
13.5 Special reinforcement details for seismic zones . 165
14 Bearings . 176
14.1 General . 176
14.2 Multiple roller bearings . 176
14.3 Elastomeric bearings . 177
14.4 Anchorage . 179
14.5 Design forces for supporting structure . 179
Annex A (normative) Equivalent equations for material factors . 181
Annex B (normative) Beam Deflection . 186
Bibliography . 187
iv © ISO 2013 – All rights reserved
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.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of
ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2. www.iso.org/directives
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. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
The committee responsible for this document is ISO/TC 71, Concrete, reinforced concrete and pre-stressed
concrete, Subcommittee SC 5, Simplified design standard for concrete structures.
Introduction
The aim of this International Standard is to provide rules for the design and construction of relatively short
span concrete bridges. This International Standard is developed for countries that do not have existing
national standards on this subject and to offer to local regulatory authorities an alternative for the design of
relatively small bridges that abound in urban overpasses and over creeks and rivers everywhere. This
International Standard shall not be used in place of a national standard unless specifically considered a
...
SLOVENSKI STANDARD
01-november-2010
Smernice za poenostavljeno projektiranje majhnih armiranobetonskih mostov
Guidelines for simplified design of small reinforced concrete bridges
Lignes directrices pour la conception simplifiée des petits ponts en béton armé
Ta slovenski standard je istoveten z: ISO/DIS 28842
ICS:
91.080.40 Betonske konstrukcije Concrete structures
93.040 Gradnja mostov Bridge construction
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT INTERNATIONAL STANDARD ISO/DIS 28842
ISO/TC 71/SC 5 Secretariat: ICONTEC
Voting begins on: Voting terminates on:
2010-06-30 2010-11-30
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Guidelines for simplified design of small reinforced concrete
bridges
Lignes directrices pour la conception simplifiée des petits ponts en béton armé
ICS 91.080.40
In accordance with the provisions of Council Resolution 15/1993 this document is circulated in
the English language only.
Conformément aux dispositions de la Résolution du Conseil 15/1993, ce document est distribué
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ISO Central Secretariat work of editing and text composition will be undertaken at publication
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Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
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©
International Organization for Standardization, 2010
ISO/DIS 28842
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©
ii ISO 2010 – All rights reserved
ISO/DIS 28842
Contents Page
Foreword .viii
Introduction.ix
1 Scope.1
2 Normative references.1
3 Terms and definitions .2
4 Symbols (and abbreviated terms).12
5 Clause.22
5.1 Procedure.22
5.1.1 Step A .22
5.1.2 Step B .22
5.1.3 Step C .22
5.1.4 Step D .22
5.1.5 Step E.22
5.1.6 Step F.22
5.1.7 Step G .22
5.1.8 Step H .22
5.1.9 Step I.22
5.1.10 Step J.23
5.1.11 Step K .23
5.2 Design documentation.23
5.2.1 Calculation memoir .24
5.2.2 Geotechnical report.24
5.2.3 Structural drawings.24
5.2.4 Specifications .24
6 General guides.24
6.1 Limitations .24
6.1.1 Permitted use.24
6.1.2 Maximum number of spans.24
6.1.3 Maximum span length.25
6.1.4 Maximum difference in span length .25
6.1.5 Maximum cantilever length .25
6.1.6 Maximum height of bridge.25
6.1.7 Maximum number of lanes .25
6.1.8 Width limitations.25
6.1.9 Clearances .26
6.1.10 Maximum skew angle.27
6.1.11 Maximum bridge horizontal curvature .27
6.1.12 Cross section variation.27
6.1.13 Interaction between superstructure and substructure.27
6.2 Limit states.27
6.2.1 Ultimate limit state design format.28
6.2.2 General .28
6.2.3 Required factored loads .28
6.2.4 Design strength .28
6.3 Serviceability limit state design format.29
7 Structural systems and layout .29
7.1 Description of the components of the structure.29
7.1.1 Superstructure system .29
ISO/DIS 28842
7.1.2 Substructure system . 29
7.1.3 Foundation . 30
7.2 General program. 30
7.2.1 Architectural program . 30
7.2.2 General structural guides for the project. 30
7.3 Structural layout . 31
7.3.1 General structural layout . 31
7.3.2 Vertical layout . 31
7.4 Feasibility under the guidelines. 32
8 Actions (loads). 33
8.1 General. 33
8.2 Dead loads. 33
8.2.1 Structural elements . 33
8.2.2 Non structural elements. 33
8.3 Live loads . 34
8.3.1 Vehicular bridges. 34
8.3.2 Pedestrian bridges. 35
8.3.3 Dynamic effect of live loads . 35
8.4 Longitudinal forces.
...
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