Rakennustuoteteollisuus RTT
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 250/SC 2
(Eurocode 2: Design of concrete structures)
Alkuperä: CEN
Määräpäivä: 2026-07-30
1.1 Scope of prEN 1992 1 2
(1) This document deals with the design of concrete structures for the accidental situation of fire exposure and is intended to be used in conjunction with prEN 1992 1 1 and EN 1991 1 2. This document identifies differences from, or supplements to, normal temperature design.
(2) This document applies to concrete structures required to fulfil a loadbearing function, separating function or both.
(3) This document gives principles and application rules for the design of structures for specified requirements in respect of the aforementioned functions and the levels of performance.
(4) This document applies to structures, or parts of structures, that are within the scope of prEN 1992 1 1 and are designed accordingly.
(5) The methods given in this document are applicable to normal weight concrete up to strength class C100/115 and lightweight concrete up to strength class LC50/60.
1.2 Assumptions
(1) In addition to the general assumptions of prEN 1990 the following assumptions apply:
- the choice of the relevant design fire scenario is made by appropriate qualified and experienced personnel or is given by the relevant national regulation;
- any fire protection measure taken into account in the design will be adequately maintained.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 250/SC 2
(Eurocode 2: Design of concrete structures)
Alkuperä: CEN
Määräpäivä: 2026-07-30
1.1 Scope of FprEN 1992-1-1
(1) This document gives the general basis for the design of structures in plain, reinforced and prestressed concrete made with normal weight, lightweight and heavyweight aggregates. It gives specific rules for buildings, bridges and civil engineering structures, including temporary structures; additional requirements specific to bridges are given in Annex K. The rules are valid under temperature conditions between -40 °C and +100 °C generally. This document complies with the principles and requirements for the safety, serviceability, durability and robustness of structures, the basis of their design and verification that are given in EN 1990.
(2) This document is only concerned with the requirements for resistance, serviceability, durability, robustness and fire resistance of concrete structures. Other requirements, e.g. concerning thermal or sound insulation, are not considered.
(3) This document does not cover:
- resistance to fire (see EN 1992 1 2);
- fastenings in concrete (see EN 1992 4);
- seismic design (see EN 1998 (all parts));
- particular aspects of special types of civil engineering works (such as dams, pressure vessels);
- structures made with no-fines concrete, aerated or cellular concrete, lightweight aggregate concrete with open structure components;
- structures containing steel sections considered in design (see EN 1994 (all parts)) for composite steel and concrete structures;
- structural parts made of concrete with a smallest value of the upper sieve aggregate size Dlower < 8 mm (or if known Dmax < 8 mm) unless otherwise stated in this Eurocode.
1.2 Assumptions
(1) The assumptions of EN 1990 apply to FprEN 1992-1-1.
(2) It is assumed that the requirements for execution and workmanship given in EN 13670 are complied with.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 250/SC 1
(Eurocode 1: Actions on structures)
Alkuperä: CEN
Määräpäivä: 2026-08-06
(1) This document defines imposed loads (models and representative values) associated with road traffic, pedestrian actions and rail traffic which include, when relevant, dynamic effects and centrifugal, braking and acceleration actions and actions for accidental design situations.
(2) Imposed loads defined in this document are applicable for the design of new bridges, including piers, abutments, upstand walls, wing walls and flank walls, noise barriers, canopies etc., and their foundations. Where appropriate, the loads can also be considered as a basis for assessment or modification of existing structures in combination with complementary conditions if necessary.
(3) The load models and values given in this document are also applicable for the design of retaining walls adjacent to roads and railway lines and the design of earthworks subject to road or rail traffic actions. This document also provides applicability conditions for specific load models.
(4) This document is intended to be used with prEN 1990, the other parts of the EN 1991 series and the EN 1992 series to EN 1999 series for the design of structures.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 250/SC 1
(Eurocode 1: Actions on structures)
Alkuperä: CEN
Määräpäivä: 2026-08-06
1.1 Scope of EN 1991 1 2
(1) The methods given in this Eurocode are applicable to buildings and civil engineering works, with a fire load related to the building and its occupancy.
(2) EN 1991 1 2 deals with thermal and mechanical actions on structures exposed to fire. It is intended to be used in conjunction with the fire design Parts of EN 1992 to EN 1996 and EN 1999 which give rules for designing structures for fire resistance.
(3) EN 1991 1 2 contains thermal actions either nominal or physically based. More data and models for physically based thermal actions are given in annexes.
(4) EN 1991 1 2 does not cover the assessment of the damage of a structure after a fire.
(5) EN 1991 1 2 does not cover supplementary requirements concerning, for example:
- the possible installation and maintenance of sprinkler systems;
- conditions on occupancy of building or fire compartment;
- the use of approved insulation and coating materials, including their maintenance.
1.2 Assumptions
(1) In addition to the general assumptions of EN 1990 the following assumptions apply:
- any active and passive fire protection systems taken into account in the design will be adequately maintained;
- the choice of the relevant design fire scenario is made by appropriate qualified and experienced personnel, or is given by the relevant national regulation.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: ISO/TC 92/SC 4
(Fire safety engineering)
Alkuperä: ISO
Määräpäivä: 2026-08-07
This document specifies the heat detection system as heat detector and sprinkler, configuration, principles of working, the items needed for fire hazard analysis, and performance-based fire safety design, calculation methods, theories. It also includes information on physical modeling.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 250/SC 8
(Eurocode 8: Earthquake resistance design of structures)
Alkuperä: CEN
Määräpäivä: 2026-08-13
1.1 Scope of EN 1998-3
(1) This document is applicable to the assessment and retrofitting of buildings and bridges in seismic regions, namely as given in a) to c):
a) to provide criteria for the assessment of the seismic performance of existing individual buildings and bridges;
b) to describe the procedure to be followed in selecting necessary corrective measures;
c) to set forth criteria for the design of retrofitting measures (i.e. design, structural analysis including intervention measures, final dimensioning of structural parts and their connections to existing structural members).
NOTE 1 For the purposes of this document, retrofitting covers both the seismic upgrading (e.g. strengthening or adding a passive system) of undamaged structures and the repair and possible upgrading of earthquake-damaged structures.
NOTE 2 Only the most common retrofit techniques are covered in this document. This does not exclude the use of other techniques, which can be developed in each country, based on the strengthening principles of this document.
NOTE 3 Annex D gives flowcharts for the application of this document.
(2) Unless specifically stated, EN 1998-1-1 and EN 1998-5 apply.
(3) Reflecting the performance requirements of EN 1998-1-1:2024, 4.1, this document covers the seismic assessment and retrofitting of buildings and bridges made of the more commonly used structural materials: concrete, steel and composite, timber and masonry.
NOTE Annexes B and C contain additional guidance related to the assessment of timber and masonry structures, respectively, and to their retrofitting when necessary.
(4) This document is intended for the assessment of individual structures, to decide on the need for structural intervention and to design the retrofitting measures that may be necessary. It is not intended for the vulnerability assessment of populations or groups of structures in seismic risk evaluations for various purposes (e.g. for determining insurance risk, for setting risk mitigation priorities, etc.).
(5) This document provides (in its material-specific Clauses 8 to 11) criteria for the verification of the more common retrofitting techniques currently in use.
(6) This document gives specific rules for the assessment and retrofitting relevant to existing buildings and bridges of consequence classes CC1, CC2 and CC3, as defined in EN 1990:2023, 4.3.
(7) Although the provisions of this document are applicable to all common categories of buildings and bridges, the seismic assessment and retrofitting of monuments and heritage structures often requires different types of provisions and approaches, depending on the nature of the monuments and heritage structures.
1.2 Assumptions
(1) The assumptions of EN 1998-1-1 apply to this document.
(2) The provisions of this document assume that the data collection and tests are performed by experienced personnel and that the engineer responsible for the assessment, the possible design of the retrofitting and the execution of work has appropriate experience of the type of structures being upgraded or repaired.
(3) It is assumed that inspection procedures, checklists and other data-collection procedures will be documented and filed and referred to in the assessment/design documents.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 250/SC 8
(Eurocode 8: Earthquake resistance design of structures)
Alkuperä: CEN
Määräpäivä: 2026-08-13
EN 1998-4 is applicable to the seismic design of on-ground and elevated silos, on-ground, elevated and underground tanks, above-ground and buried pipeline systems, towers, masts and chimneys and ancillary elements attached to the aforementioned structures or in industrial facilities.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 254
(Flexible sheets for waterproofing)
Alkuperä: CEN
Määräpäivä: 2026-08-20
This document specifies a test method to determine the resistance to wind load of mechanically fastened flexible sheets for roof waterproofing.
The assessment is limited to the performance of the mechanically fastened flexible sheets only. The test method does not include the determination of the performance of the fixing element and the mechanical fastener in combination with the structural deck.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 127
(Fire safety in buildings)
Alkuperä: CEN
Määräpäivä: 2026-09-03
This part of the EN 1366 series specifies a method of test and criteria for the evaluation (including field of direct application rules) of the ability of a partial penetration seal to maintain the fire resistance of a separating element at the position at which it has been penetrated by a device or devices that passes through one face of the element only. Partial penetration seals are used to seal apertures for electrical sockets, downlighters, media devices, cables and any item which requires an opening to be made in one face of the element of construction but does not include a device which passes through both faces.
Supporting constructions are used in this part of the EN 1366 series to represent separating elements such as walls or floors. The supporting construction shall be a system that has been subject to a fire test in accordance with one of the following standards: EN 13381 1 for horizontal membranes, EN 13381 2 for vertical membranes, EN 1364 1 or EN 1365 1 for walls, EN 1366 3 for walls based on a standard supporting construction, or EN 1364 2 or EN 1365 2 for floors. This is referred to throughout this document as the applicable test standard for the supporting construction.
This part of the EN 1366 series is used in conjunction with EN 1363 1.
The purpose of a test described in this part of the EN 1366 series is to assess the integrity and insulation performance of the partial penetration seal, of the partially penetrating service(s) or device(s) and of the separating element in the surrounding area of the partial penetration seal. Where partial penetration seals are installed in loadbearing elements, it is possible that the loadbearing capacity is also considered.
It is not the intention of this test to provide quantitative information on the rate of leakage of smoke and/or hot gases or on the transmission or generation of fumes.
Tests in accordance with this part of the EN 1366 series are not intended to supply any information on the ability of the partial penetration seal to withstand stress caused by movements or displacements of the penetrating devices.
The risk of spread of fire downwards cannot be assessed with this test.
Tests in accordance with this part of the EN 1366 series do not address any risks associated with leakage of dangerous liquids or gases caused by failure of the device in case of fire.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 396
(Earthworks)
Alkuperä: CEN
Määräpäivä: 2026-09-10
This document specifies a test method to determine the suitability of a soil to be treated with lime and/or hydraulic binders, with regard to volumetric swelling and mechanical strength, within a period not exceeding two to three weeks.
This test can be integrated into the general method of a study of treatment of materials with lime and/or a hydraulic binder, in compliance with standard EN 16907 4.
It is applicable to soils and alternative (or anthropogenic) materials treated with lime and/or hydraulic binders for the construction of embankments and capping layers; in the areas of roads, railways and airports; industrial or commercial platforms; hydraulic works and road foundations.
The results of this test:
— are only valid for the configuration tested (soil, treatment product, dosage);
— are in no case usable for dimensioning a structure including treated materials.
The values currently accepted to define treatment suitability are indicated for information in Annex A.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 175
(Round and sawn timber)
Alkuperä: CEN
Määräpäivä: 2026-09-10
This document specifies a test method to determine the resistance to wear of lacquered wood floorings, a method to test the elasticity of the lacquer and a method to determine resistance to impact of lacquered wood floorings.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 442
(Building Information Modelling (BIM))
Alkuperä: CEN
Määräpäivä: 2026-09-10
This document specifies a methodology, with general requirements and criteria, for the development of the data templates for the declaration of performance and conformity (DoPC) of construction products.
NOTE This document integrates a data template structure from EN ISO 23387:2025 [4] to be used for DoPC of construction products, together with a methodology for experts to develop domain specific data templates, following EN ISO 23386:2020 [3] and the standards from CEN/CLC/JTC 24.
Annex A provides guidance for the development of data templates for harmonized technical specifications (hTS) and European assessment documents (EAD), for product technical committees (TCs) and other stakeholders.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 51
(Cement and building limes)
Alkuperä: CEN
Määräpäivä: 2026-09-10
This document covers calcium silicate cement (common cement) intended to be used:
- for the preparation of concrete, mortar, grout, and other mixes for construction and for the manufacture of construction products including structural and non-structural products, including white cement;
- for the preparation of mortar for bricklaying, blocklaying, rendering and plastering, including white cement;
- for the preparation of adhesives for other construction products;
- for soil stabilization or improvement, road bases and sub-bases, and capping layers.
Calcium aluminate cement, supersulfated cement, very low heat cement and alkali activated binder as well as masonry cement exclusively manufactured for the preparation of mortar for bricklaying, rendering and plastering are excluded from this product definition.
NOTE 1 Calcium silicate cements with an intended use as defined in this document belong to the product category "common cement".
The product definition of common cement covers the following combination of constituents expressed in percentage as mass, any other combination is outside the product definition:
a) primary cement (minimum of 95 % clinker);
NOTE 2 This refers to the designation code CEM I.
b) binary cements with clinker and a maximum of 95 % of blast furnace slag;
NOTE 3 This refers to the designation codes CEM II/A-S, CEM II/B-S, CEM III/A, CEM III/B, CEM III/C.
c) binary cements with clinker and a maximum of 10 % of silica fume;
NOTE 4 This refers to the designation code CEM II/A-D.
d) binary cements with clinker and a maximum of 35 % of one of the following constituents: natural pozzolana, natural activated pozzolana, fly ash, coal bottom ash, burnt shale, limestone or recycled concrete fines;
NOTE 5 This refers to the designation codes CEM II/A-P, CEM II/B-P, CEM II/A-Q, CEM II/B-Q, CEM II/A-V, CEM II/B-V, CEM II/A-W, CEM II/B-W, CEM II/A-Z, CEM II/B-Z, CEM II/A-T, CEM II/B-T, CEM II/A-F, CEM II/B-F, CEM II/A-L, CEM II/B-L, CEM II/A-LL, CEM II/B-LL.
e) pozzolanic cements with clinker and a maximum of 55 % of a combination of silica fume, natural pozzolana, natural activated pozzolana, fly ash and coal bottom ash with a maximum of 10 % silica fume;
NOTE 6 This refers to the designation codes CEM IV/A, CEM IV/B.
f) composite cement with a minimum of 50 % of clinker, a maximum of 29 % of recycled concrete fines and a maximum of 44 % of any combination of blast furnace slag, silica fume, natural pozzolana, natural activated pozzolana, fly ash, coal bottom ash, burn shale and limestone with a maximum of 10 % silica fume and a maximum of 35 % of the aggregation of limestone and recycled concrete fines;
NOTE 7 This refers to the designation codes CEM II/A-M, CEM II/B-M, CEM II/C-M (containing recycled concrete fines and other allowed constituents).
g) composite cement with a minimum of 50% of clinker and a maximum of 50% of any combination of blast furnace slag, silica fume, natural pozzolana, natural activated pozzolana, fly ash, coal bottom ash, burnt shale, limestone and recycled concrete fines with a maximum of 10% of silica fume, a maximum of 20% of recycled concrete fines, and a maximum of 35% of any combination of limestone and recycled concrete fines;
NOTE 8 This refers to the designation codes CEM II/A-M, CEM II/B-M, CEM II/C-M (containing allowed constituents).
h) composite cements with a minimum of 20 % of clinker, a maximum of 49 % of blast furnace slag and a maximum of 49 % of a combination of natural pozzolana, natural activated pozzolana, siliceous fly ash and coal bottom ash;
NOTE 9 This refers to the designation codes CEM V/A, CEM V/B.
i) composite cements with a minimum of 35 % clinker, a maximum of 59% of blast furnace slag and a maximum of 20 % of natural pozzolana, natural activated pozzolana, siliceous fly ash, coal bottom ash, limestone or recycled concrete fines;
...
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 250/SC 1
(Eurocode 1: Actions on structures)
Alkuperä: CEN
Määräpäivä: 2026-09-24
1.1 Scope of EN 1991-3
(1) EN 1991-3 defines actions imposed by cranes and other machines including dynamic effects, if relevant, for the structural design of crane or machine supporting structures.
(2) EN 1991-3 provides guidance on crane classification in terms of dynamic factors and fatigue actions.
(3) EN 1991-3 applies to supporting structures of
— bridge cranes, gantry cranes and wall cranes travelling on fixed runways;
— fixed machines that cause a harmonic dynamic loading on fixed supporting structures.
(4) The principles provided in EN 1991-3 can be applied also to determine actions on supporting structures of cranes other than those referred to in (3).
(5) EN 1991-3 does not provide partial factors for actions.
NOTE For partial factors for actions, see EN 1990-1:2023+A1:2026, Clause A.5.
(6) EN 1991-3 does not provide actions or provisions for the design of cranes and machines.
1.2 Assumptions
(1) The general assumptions of EN 1990-1 apply.
(2) The design of structures supporting cranes or machines is undertaken using information on actions provided by the manufacturer of the crane or machine.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 250/SC 1
(Eurocode 1: Actions on structures)
Alkuperä: CEN
Määräpäivä: 2026-09-24
1.1 Scope of EN 1991 1 8
(1) EN 1991 1 8 gives principles and rules to determine the values of wave and current actions on structures and civil engineering works in the coastal zone, i.e. works connected to, or in close vicinity to the shore.
NOTE 1 Provisions in EN 1991 1 8 are limited to hydrodynamic actions that can be directly quantified in terms of wave and/or current induced pressures and associated forces and moments on structures or structural parts.
NOTE 2 As opposed to offshore conditions, waves or currents in the coastal zone are generally affected by the presence of the seabed or shore.
NOTE 3 The coastal zone is typically defined as the area between the shoreline and the deep-water limit.
(2) EN 1991 1 8 describes the principles for defining the hydrodynamic conditions to be used for design, including sea water levels.
(3) EN 1991 1 8 addresses specifically actions from currents and waves on the following structure types:
— cylindrical structures;
— subsea pipelines;
— suspended decks;
— vertical face structures;
— permanently moored floating structures.
NOTE 1 Additional guidance can be needed for:
— moored structures in the coastal zone for renewable energy production or related to oil and gas production or processing;
— moored structures spanning areas with variable wave and current states (e.g. floating aquaculture farms or floating bridges).
NOTE 2 For hydraulic pressures caused by quasi-static water levels, and ground water, see EN 1997 (all parts).
(4) Actions addressed in EN 1991 1 8 do not cover:
— hydraulic resonance in sheltered areas or basins (phenomena also known as harbour resonance);
— translation waves, e.g. tsunamis;
— waves and currents induced by maritime operations, i.e. vessel wake, berthing and mooring;
— hydrodynamic actions induced by earthquakes;
— ice-induced pressures and forces;
— coastal structures where flood risk and/or erosion or sediment management is the dominant function.
1.2 Assumptions
(1) The assumptions given in EN 1990 apply to this document.
(2) In addition, it is assumed that actions from waves and currents on coastal structures are determined by personnel appropriately qualified and experienced in the following fields:
a) physical coastal environment including physics of waves and currents, statistical properties and propagation of such;
b) marine hydrodynamics, wave and current interaction with structures in general and wave and current actions on structures in the coastal zone including i) fixed structures, and ii) floating structures;
c) advanced methods including probabilistic methodology and physical model testing.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 250/SC 1
(Eurocode 1: Actions on structures)
Alkuperä: CEN
Määräpäivä: 2026-09-24
1.1 Scope of EN 1991-4
(1) This document provides rules for calculating actions for the structural design of silos and tanks.
NOTE 1 Silos are used for the storage of particulate solids. Tanks are used for the storage of liquids.
NOTE 2 For limitations on rules for silos given in this document, see 1.3.
NOTE 3 For limitations on rules for tanks given in this document, see 1.4.
(2) This document includes some provisions for actions on silo and tank structures that are not only associated with the stored particulate solids or liquids (e.g. the effects of thermal differentials) but substantially affected by them.
NOTE Liquid loads on tanks are very precisely defined. Many loads on silos are not known with great precision. This document provides guidance for many practical situations for which very limited certain knowledge is available, and the information is derived from the limited experimental and analytical information available, coupled with conclusions drawn from failure investigations. The information is not based on a sound statistical treatment of experimental data.
(3) This document is intended for use with concrete, steel, aluminium, timber and FRP storage structures.
NOTE FRP is the standard acronym for fibre reinforced polymer materials.
(4) This document is also applicable for the structural assessment of existing silos and tanks, unless otherwise specified by the relevant authority or, if not specified, agreed between the relevant parties for the specific project.
NOTE 1 Changes in filling or discharge arrangements, changes in the wall friction of inner surfaces, or in the use of the silo, including storage of different particulate solids, can be reasons for assessing existing silos.
NOTE 2 Differentiation of the liquid stored can be a reason for assessing existing tanks.
1.2 Assumptions
(1) The assumptions of EN 1990-1 apply.
(2) This document is intended to be used in conjunction with EN 1990 1, with the other parts of EN 1991, EN 1992, EN 1993, EN 1995, EN 1997, EN 1998 and EN 1999 where relevant to the design of silos and tanks.
1.3 Limitations on silos
1.3.1 Geometrical limitations
(1) The following geometrical limitations apply to the design rules for silos and silo batteries (see 3.2.59 and 3.2.60) covered by this document:
- the silo planform cross-section shapes are limited to those shown in Figure 1.1c.
NOTE 1 Further information concerning planform cross-section geometries is given in Clause 7.
NOTE 2 For the determination of the effective diameter dc of the silo see Figure 1.1c;
- the following dimensional limitations on the aspect ratio for free-standing single cell silos hc/dc, the overall height hb and the effective diameter dc apply (see Figure 1.1):
hc/dc < 10 (1.1)
hb < 100 m (1.2)
dc < 60 m (1.3)
NOTE 3 See Figure 1.1 for hc, dc and hb.
- the structural transition lies in a single horizontal plane (see Figure 1.1a).
[Figure 1.1 - Silo forms showing dimensions and pressure notation]
(2) Only hoppers that are conical (i.e. axisymmetric), rectangular pyramidal with a/b = 1,5, wedge-shaped (i.e. with two vertical end walls on opposite sides) or oblique are covered by this document. Other hopper shapes and hoppers with internal structures require special considerations.
(3) Silos with an oblique conical hopper used to achieve an eccentric outlet are covered by this document.
(4) Silos with an oblique hopper are covered, but generally silos with a systematically non-symmetric geometry are not specifically covered by this document. These situations include a chisel hopper (i.e. a wedge hopper beneath a circular cylinder) and hoppers with an elongated outlet other than wedge shaped.
1.3.2 Limitations on the stored particulate solids
(1) The following limitations on the stored particulate solids apply to the design rules for silos contained in this document:
...
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 246
(Natural stones)
Alkuperä: CEN
Määräpäivä: 2026-09-24
This document specifies a method for the determination of the velocity of propagation of pulses of ultrasonic longitudinal waves in natural stone, both in laboratory and in situ.
Toimialayhteisö:
Rakennustuoteteollisuus RTT
Komitea: CEN/TC 250/SC 1
(Eurocode 1: Actions on structures)
Alkuperä: CEN
Määräpäivä: 2026-09-24
1.1 Scope of prEN 1991-1-6
(1) prEN 1991-1-6 provides guidance and general rules on the determination of actions relevant for the design of buildings and civil engineering works, including geotechnical structures, for their execution stage.
NOTE Actions for design during execution include those that only arise from execution activities and act during execution, termed construction actions (for example personnel and hand tools, auxiliary structures, equipment and elements used during execution), and others that are present during the service life of the completed structure (for example self-weight, wind, etc.) but which can act differently and/or have different values during execution.
(2) prEN 1991-1-6 provides guidance and general rules for the determination of actions for the design of auxiliary structures, elements and equipment used during execution in case they are designed to the Eurocodes and not to other European Standards.
NOTE Other European Standards (e.g. EN 12810, EN 12811, EN 12812) provide specific rules for certain types of auxiliary structures, equipment and elements used during execution.
(3) prEN 1991-1-6 gives rules for buildings and bridges during execution to supplement the provisions in EN 1990.
NOTE For combination rules for execution, see EN 1990.
1.2 Assumptions
(1) The general assumptions given in EN 1990 apply.
(2) The application of this document follows the limit state principle and is based on the partial factor method, unless explicitly prescribed differently.
(3) The verification of buildings and civil engineering structures in transient design situations is undertaken in accordance with the Eurocodes, accounting for the interaction with any auxiliary structures, elements and/or equipment.
(4) When using European product standards covering auxiliary structures, equipment and elements used during execution, it is assumed that the design basis, design requirements and, if provided, the safety and operational design limits specified in these product standards are taken into account.
(5) Adequate planning, documentation, communication, control and supervision are provided during execution, involving all relevant parties.
NOTE Execution of a structure can involve interaction between several parties from diverse engineering fields, responsible for the design, fabrication, transportation and execution of different subsystems used during the execution of a structure.