DEMU Fixing Anchors
44Pages

I N T E G R ATI O N DE MU ME TA ALINDUS TRIE / H AL FEN Integration of DEMU Metaalindustrie into HALFEN As of 1st January 2012 HALFEN fully integrated the DEMU Metaalindustrie B.V. production, sales and logistics into its organisation. Local HALFEN sales organisations in each country are now also responsible for the sales and distribution of DEMU products. HALFEN supplies DEMU products directly to the concrete and construction industry. Other customers are supplied through local representatives. DEMU production plant in Utrecht Quality guaranteed DEMU quality management is certified...

DEMU FIXING ANCHORS Systematic fixing solutions 4 Typical situations / Load diagrams 6 General technical information 8 Material / Corrosion protection 8-9 Changes in the product range 10-11 VEMO Socket anchors 32-33 Fixing pins, nailing plates, sealing caps, thread adapters 34-35 Fixing anchors, accessories 36-37 Fixing components - assembly instruction 38 General information / Determining bolt length 38 Calculation basics / About the DEMU software_39-41 © 2014 HALFEN ■ DEMU-FIX 14-E ■ www.halfen.com

S Y S T E M AT I C F I X I N G S O LU T I O N S Application Examples FIXING AND ADJUSTING PRECAST ELEMENTS CAST-IN FIXING ANCHORS INSTALLATION OF FIXING ANCHORS FIXING OF PROPS ON PRECAST ELEMENTS APPLICATION IN PRECAST ELEMENTS FOR STADIUMS FIXING OF BRIDGE RAILINGS © Photo: Romein Beton FIXING OF BALCONY RAILINGS © 2014 HALFEN · DEMU-FIX 14-E · www.halfen.com

Systematic Fixing Solutions The advantages at a glance EMU Fixing anchors with internal thread are intended to be used for permanent anchorages under predominantly static actions or quasi-static actions in reinforced and unreinforced normal weight concrete from strength class C20/25 to C50/60. They may be used in cracked or non-cracked concrete for transmission of tensile loads, shear loads or a combination of both. Bolt ancho anchor Socket anchor Medium load capacity High load capacity High load capacity • high/medium loads • near edges applications (up to high strength concrete) • thin...

S Y S T E M AT I C F I X I N G S O LU T I O N S Typical Situations / Load Dia grams Load behaviour In order to clarify the load behaviour and advantages of the different fixing anchor types in different situations, the following gives a short overview of the main applications. The load behaviour – i.e. the load capacity as a function of different concrete classes – of certain types of T-FIXX® is compared with the cor- responding types of DEMU Bolt anchors 1988, as illustrated in the diagrams. A detailed calculation of the load behaviour (with all its project specific influences such as the...

S Y S T E M AT I C F I X I N G S O LU T I O N S Design Concept Design concept Planning standards apply for the whole of the European Union • The European standard CEN/TS 1992-4 was issued in 2009 and covers the design method for “Design of fastenings for use in concrete”. • This approval standard represents current state of the art technology standards and may be used in all applications. • To apply the European calculation method, product specific values such as load bearing capacities are necessary. These and further special regulations for dimensioning are included in the DEMU...

S Y S T E M AT I C F I X I N G S O LU T I O N S Design Concept Verification method according to CEN/TS 1992-4 Required verifications according to CEN/TS 1992-4 Tensile stress Type of failure Transverse stress Verification Steel failure of fastener steel failure of fastener without lever arm Pull-out failure steel failure of fastener with lever arm Concrete cone failure concrete edge failure Splitting failure concrete pry-out failure Blow-out failure Not required for fasteners with c > 0,5 hef Notes regarding the table • NEd and VEd are tension or shear stress respectively, acting on the...

GENERAL TECHNIC AL INFORMATION Material and Corrosion Protec tion Corrosion protection Galvanising: Zinc galvanising (GV) Zinc galvanising (chromium VI free) with a passivation treatment is used. The coating thickness is approximately 5–8 μm. After galvanising the products are dipped in a bichromate solution for passivation. The corrosion resistance is limited and depends on the immediate environment. All threaded zinc galvanized products (T-FIXX® anchors, bolt anchors, bar anchors) have a yellow tint. Therefore the anchors are easily to distinguish from stainless steel types. This does not...

GENERAL TECHNIC AL INFORMATION Changes in the Produc t Range Changes since 1 st January 2012 The new DEMU anchor, the T-FIXX®, became available on 1st January 2012. It is not a socket anchor and it is not a bolt anchor – it is a clever combination of both, and can be used as a replacement for either product type. T-FIXX® can replace many other socket anchors • In terms of load capacity T-FIXX® can replace all types of socket anchors of the same dimensions and because of its higher performance it is possible that a T-FIXX® of a smaller (thread) M-size can replace larger socket anchors! This...

GENERAL TECHNICAL INFORMATION Changes in the Product Range Range from 1st January 2012 Alternatives to discontinued socket anchors Discontinued socket anchors (non-stock item). Alternatives (same thread diameter and length)® with nailing plate 2275 with nailing plate 2275 with nailing plate 2275 © Because of its high performance it is possible that T-FIXX® in smaller sizes can support similar loads to larger socket anchors! This will also allow a smaller bolt diameter and reduce costs for the fixing. © 2014 HALFEN ■ DEMU-FIX 14-E ■ www.halfen.com

General Information The DEMU Fixing anchor T-FIXX® with European Technical Approval is an innovative combination of socket anchor and bolt anchor. T-FIXX® is calculable for each situation. 22 standard versions/sizes are available in zinc galvanised (GV) or stainless steel (A4). The zinc galvanised version of the T-FIXX® is yellow galvanised (chromium VI free) and therefore visually distinguishable from the stainless steel types. Anchor description The T-FIXX GV is manufactured from a steel precision tube (strength class E235). The surface is zinc galvanised (GV), the internal thread is...