Stavebnictví

Komise : CEN/TC 88 (Thermal insulating materials and products)
Původce: CEN
K připomínkám do: 29.10.2018
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Amendment

Oblast zaměření: Navrhování budov
Komise : CEN/TC 442 (Building Information Modelling (BIM))
Původce: CEN
K připomínkám do: 30.10.2018
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This Part 2 of the ICDD standard adds functionality to the container format specified in Part 1. Part 1 defines a generic container format to store documents using various formats and structure and the ability to provide links between documents or between referable subsets of these documents (documents and datasets are the payload of the container). Building on that foundation, Part 2 of this standard adds the possibility of adding more semantic (meaningful) information to the contents of the container, as well as to the links between pieces of information in the container using Linked Open Data technology.
 
This standard does not prescribe the structure or format of the documents in the payload.
 
This standard is suitable for industry sectors such as the built environment, where many different standards are used, where there is a mixture of digital representations of proposed or existing built and natural assets (in open or proprietary formats), requiring the use of legacy systems and the application of different classification systems. This part adds the ability to link, in a semantic and meaningful way, those islands of data represented using different formats and structure. This standard is not meant to replace other standards such as ISO 16739 which is recognized as the standard for describing building objects.

This standard provides two conformance classes. Both conformance classes open the ability to specialize the container for use cases not otherwise handled.

In Conformance Class A, the container format of Part 1 is expanded with an ontology dynamic semantics, providing basic support for creating an information model that captures the required semantics of project, organization or sector standards and agreements. By doing so, it provides building blocks that make it easier to link different sources of information. This is achieved by introducing support for typed entities, typed entity properties and typed relationships between those entities (such as the relationship between an assembly and its parts or between a physical entity and its associated requirements). There is also support for defining provenance, versioning and creating libraries.

In Conformance Class B, the user is offered complete freedom to add user defined ontologies to the container, with the sole condition that it is expressed in RDF/OWL.

The use cases are in line with those of Part 1, but may include numerous extensions. The following list gives some examples:

Make use of asset type libraries describing the required properties per asset type

Link to a specific classification system, e.g. CoClass, Uniclass or OmniClass™

Add the ability for exchanging systems engineering information

Link to product requirement libraries

Add semantic links (i.e. meaningful links) to and between information provided using existing standards like PLCS, IFC and GML

Link to an ontology for Units and Measures, like QUDT

Link to one or more Product Catalogues

Since this standard capitalizes on Linked Open Data technology, the header file, along with any additional RDF/OWL files, forms a suite that may be directly queried by software using standard techniques such as SPARQL.

 

 

Oblast zaměření: Dřevěné konstrukce
Komise : CEN/TC 124 (Timber structures)
Původce: CEN
K připomínkám do: 5.11.2018
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This International Standard specifies a method based on density, for the selection of pieces of timber used in determining the strength and stiffness properties of joints between members of structural timber made with mechanical fasteners. It is intended to be used in conjunction with a test standard specifying a test method.

It is assumed the timber density is normally distributed and that any deviations are reported.

This International Standard is applicable only to specimens of structural timber.

NOTE          It is emphasized that the timber density is only one of the properties that may influence the strength of a joint. Other relevant properties are, for example, growth-ring size and orientation, toughness and hardness.

Oblast zaměření: Otopné soustavy pro budovy
Komise : CEN/TC 247 (Controls for mechanical building services)
Původce: CEN
K připomínkám do: 6.11.2018
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This document specifies a communication protocol for networked control systems. The protocol provides peer-to-peer communication for networked control using web-services. The document describes services in layer 2 and layer 3.

The layer 2 (data link layer) specification also describes the MAC sub-layer interface to the physical layer. The physical layer provides a choice of transmission media. The layer 3 (network layer), as described in EN 14908‑1, is integrated in UDP/IP communication using IPv4 and IPv6 protocols.

Oblast zaměření: Geotechnika
Komise : CEN/TC 341 (Geotechnical investigation and testing)
Původce: CEN
K připomínkám do: 8.11.2018
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This document specifies the measurement of stress changes by means of total pressure cells (TPC). It refers to cells which are permanently installed either in the ground, in adjacent engineered structures or in contact planes between any two media. General rules of performance monitoring of the ground, of structures interacting with the ground, of geotechnical fills and of geotechnical works are presented in ISO 18674‑1:2015.

If applied in conjunction with ISO 18674‑4:2019, this document allows the determination of effective stress acting in the ground.

Indirect stress monitoring methods (see 18674-1:2015, Table B.2) are not subject of this document.

This document is applicable to:

—    monitoring changes of the state of stress in the ground and in geo-engineered structures (e.g. in earth fill dams or tunnel lining);

—    monitoring contact pressures at the interface between two media (e.g. earth pressure on retaining wall; contact pressure at the base of a foundation);

—    checking geotechnical designs and adjustment of construction in connection with the Observational Design procedure;

—    evaluating stability during or after construction.

NOTE          This document fulfils the requirements for the performance monitoring of the ground, of structures interacting with the ground and of geotechnical works by the means of total pressure cells as part of the geotechnical investigation and testing according to EN 1997-1 and EN 1997-2, see References [1] and[2].

Komise : CEN/TC 282 (Installation and equipment for LNG)
Původce: CEN
K připomínkám do: 18.11.2018
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This International Standard specifies the design, minimum safety and functional requirements, inspection and testing procedures for LNG dry-disconnect/connect coupling served for LNG hose bunkering system intended for use on LNG bunker ship, tank truck and shore-based facility etc. This standard is not applicable to hydraulically operated quick connect/disconnect coupler (QCDC) used for hard loading arm since it has been stipulated in ISO 16904. Based on the current technology of industrial manufacturing, the size of coupling from DN25 to DN200 is to be considered and contained within this standard at the development period.

The scope of this standard includes the following five elements.

1)    General requirements: basic design principle, design parameters, functional requirements, internal valve, protective cap, handle;

2)    Materials: body of coupling, welding, bolting, spring, seals;

3)    Interface type and dimensions: Ends termination of receptacle, dimensions;

4)    Marking: manufacturer and international standard information;

5)    Testing: test conditions, test arrangement, general requirements, verification testing, production testing.

Oblast zaměření: Požární zkoušky
Komise : CEN/TC 127 (Fire safety in buildings)
Původce: CEN
K připomínkám do: 19.11.2018
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This part of ISO 11925 specifies a method of test for determining the ignitability of products by direct small flame impingement under zero impressed irradiance using vertically oriented test specimens.

Information on the precision of the test method is given in Annex A.

Oblast zaměření: Požární ochrana
Komise : CEN/TC 191 (Fixed firefighting systems)
Původce: CEN
K připomínkám do: 20.11.2018
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This European Standard specifies product characteristics, and test/assessment methods and compliance criteria of the test results for smoke barriers which comprise the barrier itself, with or without associated activation and drive devices. It does not cover barriers made of part of the building’s structure. Smoke barriers are intended to be installed in smoke control systems in construction works.

Oblast zaměření: Požární ochrana
Komise : CEN/TC 191 (Fixed firefighting systems)
Původce: CEN
K připomínkám do: 27.11.2018
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This document specifies requirements for the construction and performance of residential sprinklers as well as test methods for their type approval, which are operated by a change of state of an element or bursting of a glass bulb under the influence of heat, for use only in automatic sprinkler systems for domestic and residential applications as defined in EN 16925:−[1].

This standard does not cover representative fire and other tests for special sprinklers that are intended to provide for specific fire hazards, nor does it cover fire and other tests for sprinklers for commercial and industrial sprinkler systems as in EN 12845. Those test requirements are covered by EN 12259-1.

NOTE 1     All pressure data in this European Standard are given as gauge pressures in bar.

NOTE 2     Sprinklers according to EN12259-1 can also be used in residential and domestic applications if the system is designed according to EN 12845.

 

[1] Under preparation. Stage at the time of publication: FprEN 16925:2018

Oblast zaměření: Beton
Komise : CEN/TC 104 (Concrete and related products)
Původce: CEN
K připomínkám do: 27.11.2018
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This procedure is a method for evaluating the carbonation resistance of concrete using test conditions that accelerate the rate of carbonation. After a period of preconditioning, the test is carried out under controlled exposure conditions using an increased level of carbon dioxide.

NOTE          The test under reference conditions takes a minimum of 112 days comprising a minimum age of the specimen prior to conditioning of 28 days, a minimum conditioning period of 14 days and an exposure to increased carbon dioxide levels of 70 days.

This procedure is not a method for the determination of carbonation depths in existing concrete structures.

Oblast zaměření: Požární zkoušky
Komise : CEN/TC 127 (Fire safety in buildings)
Původce: CEN
K připomínkám do: 27.11.2018
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This document describes the conditioning procedures for test specimens which will be tested according to the European standards for reaction to fire.

The rules for the selection of substrates for construction products when carrying out reaction to fire tests are also detailed in this document.

This document does not contain requirements for

—    the pre-drying of test specimens for the non-combustibility test according EN ISO 1182;

—    methods of cleaning (e.g. washing) and other methods for the assessment of durability aspects, which are dealt with in the relevant product standards.

Oblast zaměření: Navrhování budov
Komise : CEN/TC 442 (Building Information Modelling (BIM))
Původce: CEN
K připomínkám do: 30.11.2018
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This standard defines a generic container format to store a delivered set of documents, including a means to link otherwise disconnected data. In this context, the term document refers to any digital resource that provides information about the built or natural environment, including, but not limited to, any 2D or 3D representation or model, spreadsheet, image or text-based digital resource.

This standard is suitable for all parties dealing with information concerning the built environment, where there is a need to exchange multiple documents and their interrelationships, either as part of the process or as contracted deliverables.  The format is intended to use resources either included in the container (such as documents) or referenced remotely (such as web resources). A key feature is that the container can include information about the relationships between the documents. Relevant use-cases reflect the need for information exchange during the entire life cycle of any built asset and may include, but is not limited to, the handover of

a published bidding package,

required project deliverables at a specific project stage,

shared information as background or for further development, or

published approval packages.

The container format includes a header file and optional link files that define relationships by including references to the documents, or to elements within them. The header file uniquely identifies the container and its contractual or collaborative intention. This information is defined using the RDF and OWL semantic web standards.

The header file, along with any additional RDF/OWL files or resources, forms a suite that may be directly queried by software. Where it includes link references into the content of documents that don’t support standardized querying mechanisms, their resolution may depend on third party interpreters. Alternatively, the link references may be interpreted by the recipient applications, or reviewed interactively by the recipient.

The format can also be used to deliver multiple versions of the same document with the ability to convey the known differences or priority between them.