ISO 15928-1:2003

Houses — Description of performance — Part 1: Structural safety

ISO 15928-1:2003 sets out a method for describing the structural safety performance of houses. It covers user needs, provides performance descriptions, establishes parameter descriptions, and outlines evaluation processes. It includes a description of permanent, imposed, wind, seismic, snow and other actions as well as structural resistance. ISO 15928-1:2003 is intended for use in the evaluation of the design and construction of houses, in the international trading of houses or their sub-systems, and in developing risk-management tools for the protection of houses. It describes the structural safety of a house as a whole.

Constructions d'habitation — Description des performances — Partie 1: Sécurité de la structure

General Information

• Status: Withdrawn
• Publication Date: 03-Dec-2003
• Withdrawal Date: 03-Dec-2003
• ICS: 91.040.01 - Buildings in general
• ICS: 91.080.01 - Structures of buildings in general
• Technical Committee: ISO/TC 59/SC 15 - Framework for the description of housing performance
• Drafting Committee: ISO/TC 59/SC 15 - Framework for the description of housing performance
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 17-Aug-2015

Relations

• Revised: ISO 15928-1:2015 - Houses — Description of performance — Part 1: Structural safety
• Effective Date: 03-Nov-2012

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 15928-1
First edition
2003-12-01

Houses — Description of performance —
Part 1:
Structural safety
Constructions d'habitation — Description des performances —
Partie 1: Sécurité de la structure




Reference number
ISO 15928-1:2003(E)
©
ISO 2003

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ISO 15928-1:2003(E)
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©  ISO 2003
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ISO 15928-1:2003(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 1
4 Structural safety performance. 2
4.1 User needs. 2
4.2 Performance description. 2
4.3 Principles for describing structural safety performance. 3
5 Parameters for the description of performance. 3
5.1 Parameters for describing actions. 3
5.2 Parameters for describing structural resistance. 4
6 Evaluation . 5
6.1 General. 5
6.2 Analysis. 5
6.3 Testing. 5
6.4 Service experience. 5
6.5 Combination . 5
Annex A (informative) Commentary . 6
Annex B (informative) Structural safety performance checklist. 13
Bibliography . 16

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ISO 15928-1:2003(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 15928-1 was prepared by Technical Committee ISO/TC 59, Building construction, Subcommittee SC 15,
Performance criteria for single family attached and detached dwellings.
ISO 15928 consists of the following parts, under the general title Houses — Description of performance:
 Part 1: Structural safety
Further parts are in preparation.

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ISO 15928-1:2003(E)
Introduction
The objective of the ISO 15928 series of standards is to identify the methods that will be used to describe the
performance of houses. Each standard will relate to a separate attribute. The standards will not specify levels
of performance and they are not intended to replace national standards or regulations, but provide a
standardized framework to enable national standards and regulations to be developed in accordance with
WTO requirements. These standards will not provide design methods and/or design criteria.
Based on the framework provided by these standards, purchasers, regulators and standards-preparers in
respective countries can describe their requirements in standardized performance terms. Additionally, the
manufacturers/providers will be able to respond by describing the performance of their products in a similar
manner.
The purpose of this International Standard is to provide a standardized system of describing performance that
can be used to specify performance requirements and performance levels, or to rate houses in terms of
structural safety.
NOTE World Trade Organization (WTO) Agreement on technical barriers to trade, 1997, Clause 2.8 states:
“Whenever appropriate, members shall specify technical regulations based on product requirements in terms of
performance, rather than design or descriptive characteristics.”

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INTERNATIONAL STANDARD ISO 15928-1:2003(E)

Houses — Description of performance —
Part 1:
Structural safety
1 Scope
This part of ISO 15928 sets out a method for describing the structural safety performance of houses. It covers
user needs, provides performance descriptions, establishes parameter descriptions, and outlines evaluation
processes. It includes a description of permanent, imposed, wind, seismic, snow and other actions as well as
structural resistance.
This part of ISO 15928 is intended for use in the evaluation of the design and construction of houses, in the
international trading of houses or their sub-systems, and in developing risk-management tools for the
protection of houses.
It describes the structural safety of a house as a whole.
Annex A includes background information on this part of ISO 15928, guidance on its use, and suggestions on
good practice.
Details on references referred to in Notes are provided in a Bibliography.
NOTE Structural serviceability, durability and other attributes will be covered in future parts of ISO 15928.
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 2394:1998, General principles on reliability for structures
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 2394 and the following apply.
3.1
basic ground snow depth
ground snow depth for a particular site before modifications are made for surrounding environment
3.2
basic wind speed
wind speed at a specified height and a specified terrain for a particular site before modifications are made for
surrounding environment
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ISO 15928-1:2003(E)
3.3
house
building occupied for residential purposes which may be separated or linked horizontally, but not linked
vertically, which has its own access and does not share any common space
3.4
load
value of a force corresponding to an action
3.5
parameters (structural)
group of variables used to quantitatively describe the structural safety performance
NOTE Structural parameters consist of variables describing
 magnitudes of the actions,
 magnitudes of structural resistance, and
 other conditions that may affect the structural safety performance.
3.6
performance
behaviour of houses related to users' needs
3.7
structural safety performance
behaviour of houses under possible actions related to human lives
NOTE In the above definitions, “action” is defined as in ISO 2394.
4 Structural safety performance
4.1 User needs
The risk of collapse or other kind of severe damage resulting from structural failure, which may affect the life
safety of the house occupants in the house, or people in its vicinity, shall not exceed a level acceptable to the
user.
4.2 Performance description
The performance description is the capacity of the whole house and its parts, with an appropriate degree of
reliability, to maintain their strength and stability under all actions likely to occur during its design working life.
NOTE 1 The appropriate degree of reliability can be judged with due regard to the possible consequences of failure
and the expense level of effort and procedures necessary to reduce the risk of failure. Aspects that are important in
achieving the proper degree of reliability include choice of structural systems, design and analysis, durability design,
quality control, maintenance and protective measures.
NOTE 2 In addition, it is expected that the house would not be damaged by unexpected events, such as explosion,
impact or consequences of human error, to an extent disproportionate to the original cause.
NOTE 3 Likely actions may include those arising from soil/structure interaction, probable ground movements,
compatibility of connections between subsystems and the effects of openings.
NOTE 4 For the purposes of this part of ISO 15928, the durability of materials are not considered to have a bearing on
the structural performance of the house.
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ISO 15928-1:2003(E)
4.3 Principles for describing structural safety performance
The structural safety performance may be described by nominating the structural actions on the house and
the resistance of the structure under the effect of those actions.
5 Parameters for the description of performance
5.1 Parameters for describing actions
5.1.1 Permanent actions
The permanent actions other than self-weight are described by the magnitude(s) in kilonewtons and the
location(s) of the imposed load(s).
5.1.2 Imposed actions
The imposed actions are described by the representative values of one or more of
a) a uniformly distributed floor or roof load, in kilopascals,
b) a concentrated floor or roof load, in kilonewtons, over a specified area, in square metres,
c) a concentrated wall impact load, in kilonewtons, applied at a specified height, in metres, above the floor;
and
d) a uniformly distributed horizontal line load, in kilonewtons per metre, applied at a specified height, in
metres, above the floor.
[1]
NOTE 1 ISO 2103 provides minimum recommended imposed actions for different types of use and occupancy.
NOTE 2 An example of d) is the load on a hand rail.
5.1.3 Wind actions
Wind actions are described by the representative value of the wind velocity, in metres per second, derived
from the basic wind speed, factored as appropriate to take into account local effects, terrain, shielding,
topography, altitude, etc., based on one of the following wind velocity types:
a) 3-s gust;
b) 1-min mean;
c) 10-min mean;
d) hourly mean.
The effect of windborne debris on internal pressures should be considered.
[2]
NOTE Refer to ISO 4354 for details on the conversion of wind velocity to wind forces and conversion between
different types of wind velocity.
5.1.4 Seismic actions
Seismic actions are described by stating the representative value of one of the following parameters:
a) the effective peak ground acceleration, expressed as a fraction of gravity;
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ISO 15928-1:2003(E)
b) the base shear coefficient;
c) the ground acceleration response spectrum for the site.
The proportion of the imposed loads to be included in the seismic mass shall also be nominated.
The representative value shall be based on a consideration of the seismic activity, the soil characteristics of
the construction site and the response behaviour of the structure.
[3]
NOTE ISO 3010 provides additional information on seismic action on structures.
5.1.5 Snow actions
The snow actions are described by stating the representative values of
a) the ground snow depth, in metres, derived from the basic snow depth, factored to take into account local
effects such as terrain, shielding, topography, etc.,
b) the snow density, in kilograms per cubic metre, i.e. the density to be used in converting the ground snow
depth into a load, and
c) the duration, in days per year.
[4]
NOTE ISO 4355 provides information on the conversion of ground snow depths to roof snow loads.
5.1.6 Other actions
Consideration shall be given to the description of other actions arising from floods, tornados, tsunamis,
potentially unstable sites, windborne debris, temperature, impact, explosion, etc., if these actions are likely to
affect the structural safety of the house.
5.1.7 Combinations of actions
Consideration shall be given to the description of the combinations of the actions to account for the probability
of simultaneous occurrence of two or more actions.
5.2 Parameters for describing structural resistance
5.2.1 General
The resistance of the structure under the effects of the actions can be described in terms of limit state criteria
or allowable stress criteria for materials with recognized engineering properties in accordance with 5.2.2 or
5.2.3 and ISO 2394 where appropriate. Materials without recognized engineering properties may be described
in accordance with ISO 2394.
NOTE Reference should be made to relevant International Standards when available.
5.2.2 Resistance based on limit state criteria
The following information shall be provided:
a) strength reduction factor (resistance factor or partial safety factors);
b) characteristic material strengths;
c) testing methods from which the characteristic material strengths are determined.
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ISO 15928-1:2003(E)
5.2.3 Resistance based on allowable stress criteria
The following information shall be provided:
a) factor of safety for stress criteria;
b) characteristic material strengths;
c) testing methods from which the characteristic strengths are determined.
6 Evaluation
6.1 General
Evaluation may be carried out by
a) analysis,
b) testing,
c) service experience, or
d) a combination of the above.
NOTE The characteristic values of material properties used for analysis should be derived from International or other
appropriate test standards.
6.2 Analysis
Action effects on individual structural members shall be determined by methods of structural analysis that take
into account equilibrium, general stability, geometric compatibility, and both short- and long-term material
properties. Members that tend to accumulate residual deformations under repeated service loads shall have
included in their analysis the added eccentricities expected to occur during the design working life.
6.3 Testing
Testing shall incorporate a realistic representation of materials, loading conditions, boundary conditions and
construction practices. Testing for evaluating structural response shall be full scale unless all scale effects can
be appropriately estimated.
NOTE See ISO 2394:1998, Annex D, for the use of testing in design.
6.4 Service experience
Service experience shall comprise a sufficient number of representative examples, exposed to similar or more
severe service conditions, together with adequate documentation.
6.5 Combination
A combination of analysis, testing and service experience may be used for evaluation. Simplified analytical
procedures using a combination of testing and service experience may be used.
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ISO 15928-1:2003(E)
Annex A
(informative)

Commentary
A.1 Scope
The purpose of this part of ISO 15928 is to standardize the method of describing the structural safety
performance for houses; i.e. to standardize the parameters by which the structural safety aspects of housing
performance are expressed or defined. It does not specify a level of performance and it is not intended to
provide design method and/or criteria.
It is one part of a series of International Standards designed to facilitate the communic
...