CEN/TR 17080:2018
(Main)Design of fastenings for use in concrete - Anchor channels - Supplementary rules
Design of fastenings for use in concrete - Anchor channels - Supplementary rules
EN 1992-4:2018 covers anchor channels located in cracked or uncracked concrete subjected to tensile loads and/or shear loads transverse to the longitudinal channel axis as well as combinations of these loads. Shear loads acting in direction of the longitudinal axis of the channel and combinations of shear loads acting transverse and in direction of the longitudinal axis of the channel, combinations of tensile loads and shear loads acting in direction of the longitudinal axis of the channel and combinations of loads in all three directions are excluded.
This Technical Report provides design rules for anchor channels under static and quasi-static shear loads acting in direction of the longitudinal channel axis and all possible combinations of shear and tension loads acting on the channel as well as design rules for anchor channels with supplementary reinforcement to take up shear loads, additional and alternative to the provisions of EN 1992- 4:2018. All relevant failure modes are considered and will be verified. Fatigue, impact and seismic loads are not covered.
The design rules in this document are only valid for anchor channels with a European Technical Product Specification. The design provisions for shear loads acting in direction of the longitudinal axis of the channel cover the following anchor channels and applications:
- Anchor channels with 2 or 3 anchors.
- Anchor channels where the shear load in the longitudinal axis of the channel is transferred to the channel by corresponding locking channel bolts creating mechanical interlock by means of a notch in the channel lips or serrated channel bolts which interlock with serrated lips of the channel (Figure 1).
- Anchor channels produced from steel with at least two metal anchors rigidly connected to the back of the channel (e.g. by welding, forging or screwing). The anchor channels are placed flush with the concrete surface. A fixture is connected to the anchor channel by channel bolts with nut and washer.
- Anchor channels close to the edge placed either parallel or transverse to the edge of the concrete member. The design provisions for concrete edge failure do not cover channel orientations inclined to the concrete edge.
The design method for anchor channels loaded in shear in direction of the longitudinal axis of the channel follows closely the existing design model for headed fasteners. For reasons of simplicity modifications specific for anchor channels are used where necessary.
The design provisions for the supplementary reinforcement to take up shear loads in case of anchor channels situated parallel to the edge and loaded in shear transverse to the longitudinal axis apply to anchor channels with unlimited number of anchors.
Examples of anchor channels and channel bolts ensuring mechanical interlock are given in Figure 1.
Bemessung der Verankerung von Befestigungen in Beton - Ankerschienen - Ergänzende Regelungen
Conception et calcul des fixations pour béton - Rails insert - Règles supplémentaires
Projektiranje pritrjevanja za uporabo v betonu - Odprti profili za sidranje - Dodatna pravila
Standard EN 1992-4 obravnava odprte profile za sidranje, nameščene v razpokani ali nerazpokani beton, izpostavljen nateznim obremenitvam in/ali strižnim obremenitvam prečno na vzdolžno os odprtega profila, pa tudi kombinacije teh obremenitev. Strižne obremenitve v smeri vzdolžne osi odprtega profila in kombinacije strižnih obremenitev, ki delujejo prečno in v smeri vzdolžne osi odprtega profila, kombinacije nateznih obremenitev in strižnih obremenitev, ki delujejo v smeri vzdolžne osi odprtega profila, ter kombinacije obremenitev v vseh treh smereh niso zajete.
To tehnično poročilo določa pravila projektiranja za odprte profile za sidranje pod statičnimi in navideznimi statičnimi strižnimi obremenitvami, ki delujejo v smeri vzdolžne osi odprtega profila, ter za vse možne kombinacije strižnih in nateznih obremenitev, ki delujejo na odprti profil, pa tudi pravila projektiranja za odprte profile za sidranje z dodatno ojačitvijo, ki prevzema strižne obremenitve, in sicer dodatno k določbam standarda EN 1992-4 ali namesto njih. Upoštevani so vsi ustrezni modeli odpovedi in bodo tudi preverjeni. Utrujanje, sunki in seizmične obremenitve niso obravnavani.
Pravila projektiranja v tem dokumentu veljajo samo za odprte profile za sidranje z evropsko tehnično specifikacijo za izdelke. Določbe projektiranja za strižne obremenitve, ki delujejo v smeri vzdolžne osi odprtega profila obravnavajo naslednje odprte profile za sidranje in načine uporabe:
– odprti profili za sidranje z 2 ali 3 sidri;
– odprti profili za sidranje, pri katerih se strižna obremenitev v smeri vzdolžne osi odprtega profila prenaša na odprti profil z ustreznimi zaklepnimi profilnimi vijaki, ki ustvarjajo mehansko zaporo z zarezo v ustju odprtega profila, ali nazobčanimi profilnimi vijaki, ki se zataknejo v nazobčano ustje odprtega profila (slika 1);
– odprti profili za sidranje, izdelani iz jekla, z najmanj dvema kovinskim sidroma, trdno povezanima z zadnjim delom odprtega profila (npr. z varjenjem, kovanjem ali vijaki). Odprti profili za sidranje se namestijo poravnano s površino betona. Vezni element je povezan z odprtim profilom za sidranje s profilnimi vijaki z matico in podložko;
– odprti profili za sidranje blizu roba, nameščeni vzporedno ali prečno na rob betonskega elementa. Določbe projektiranja za odpoved betonskega roba ne obravnavajo usmeritev odprtega profila z nagibom proti betonskemu robu.
Metoda projektiranja za odprte profile za sidranje, strižno obremenjene v smeri vzdolžne osi odprtega profila, natančno upošteva obstoječi model projektiranja za vezna sredstva z glavo. Zaradi poenostavitve so za odprte profile za sidranje uporabljene prilagoditve, kjer je potrebno.
Določbe projektiranja za dodatno ojačitev, ki prevzema strižne obremenitve v primeru odprtih profilov za sidranje, nameščenih vzporedno z robom in strižno obremenjenih v prečni smeri na vzdolžno os, veljajo za odprte profile za sidranje z neomejenim številom sider.
Primeri odprtih profilov za sidranje in profilnih vijakov, ki zagotavljajo mehansko zaporo, so prikazani na sliki 1.
(...)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST-TP CEN/TR 17080:2018
01-december-2018
Projektiranje pritrjevanja za uporabo v betonu - Odprti profili za sidranje - Dodatna
pravila
Design of fastenings for use in concrete - Anchor channels - Supplementary rules
Bemessung der Verankerung von Befestigungen in Beton - Ankerschienen - Ergänzende
Regelungen
Conception et calcul des fixations pour béton - Rails insert - Règles supplémentaires
Ta slovenski standard je istoveten z: CEN/TR 17080:2018
ICS:
21.060.01 Vezni elementi na splošno Fasteners in general
91.080.40 Betonske konstrukcije Concrete structures
SIST-TP CEN/TR 17080:2018 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST-TP CEN/TR 17080:2018
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SIST-TP CEN/TR 17080:2018
CEN/TR 17080
TECHNICAL REPORT
RAPPORT TECHNIQUE
September 2018
TECHNISCHER BERICHT
ICS 21.060.01; 91.080.40
English Version
Design of fastenings for use in concrete - Anchor channels -
Supplementary rules
Bemessung der Verankerung von Befestigungen in
Beton - Ankerschienen - Ergänzende Regelungen
This Technical Report was approved by CEN on 9 April 2017. It has been drawn up by the Technical Committee CEN/TC 250.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 17080:2018 E
worldwide for CEN national Members.
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SIST-TP CEN/TR 17080:2018
CEN/TR 17080:2018 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 6
3 Terms, definitions, symbols and units . 6
4 Basis of design . 8
5 Durability . 9
6 Derivation of forces acting on anchor channels - Analysis . 9
6.1 General . 9
6.2 Tension loads . 10
6.3 Shear loads . 10
6.3.1 Shear loads V acting transverse to the longitudinal axis of the channel . 10
Ed,y
6.3.2 Shear loads V acting in direction of the longitudinal axis of the channel . 10
Ed,x
7 Verification of ultimate limit state . 13
7.1 Tension load . 13
7.2 Shear load . 13
7.2.1 Shear load V acting transverse to the longitudinal channel axis . 13
Ed,y
7.2.2 Shear load V acting in direction of the longitudinal axis of the channel . 13
Ed,x
7.3 Combined tens
...
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