Byggnadsstommar

Ämnesområden: Träkonstruktioner
Kommittébeteckning: SIS/TK 182 (Trä)
Källa: ISO
Svarsdatum: den 12 sep 2018
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This part of ISO 22389 specifies the component performance and manufacturing requirements for prefabricated wood-based I-beams used as structural members in bending applications. It does not cover fire performance, formaldehyde requirements and biological durability.

This part of ISO 22389 gives requirements for manufacturing, in-house quality assurance and periodic reevaluation of prefabricated wood-based I-beams.

Wood-based I-beams tested according to this part of ISO 22389 are intended for use in covered conditions and utilize components that are able to resist the effects of moisture on structural performance due to construction delays or other conditions of similar severity, but not permanently exposed to the weather.

NOTE The service conditions are similar to "Service class 2" as defined in ISO 20152-1.

Testing, evaluation, and performance characterization requirements for prefabricated wood-based I-beams are covered in ISO 22389-1.

This part of ISO 22389 does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this part of ISO 22389 to establish appropriate health and safety practices and determine the applicability of regulatory limitations prior to use.

Ämnesområden: Träkonstruktioner
Kommittébeteckning: SIS/TK 182 (Trä)
Källa: ISO
Svarsdatum: den 12 sep 2018
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This International Standard specifies requirements for establishing the characteristic properties of structural laminated veneer lumber (LVL), including 5th percentile strength values, stiffness characteristics and other performance characteristics, related to its end use as a structural product for dry use (service class 1). It is applicable to members used in flatwise or edgewise bending orientations.

It does not cover the assessment of formaldehyde requirements, biological durability, fire performance or manufacturing, such as quality control and marking.

Kommittébeteckning: SIS/TK 145 (Armering)
Källa: ISO
Svarsdatum: den 2 okt 2018
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This part of ISO 6935 specifies technical requirements for ribbed bars to be used as reinforcement in concrete.

This part of ISO 6935 is applicable to steel delivered in the form of bars, coils and de-coiled products. It includes both weldable and non-weldable steels.

The production process is at the discretion of the manufacturer.

This part of ISO6935 is not applicable to ribbed bars produced from finished products, such as plates and railway rails.