HILTI DX-KWIK & DX-BARDAGE

Transcription

1 ATG Technical Approval with Certification Approval and Certification Body Fastening system HILTI DX-KWIK & DX-BARDAGE ATG 13/1824 Approval holder: Hilti Belgium nv Z.4 Broekooi 220 B-1730 Asse Tel.: +32 (0) Fax.: +32 (0) Website: Valid from 12/02/2013 until 11/02/2016 Belgian Construction Certification Association Rue d Arlon, Brussels info@bcca.be 1 Objective and scope of the technical approval This technical approval is based on the favourable evaulation of the product or system by an independent approval body designated by UBAtc asbl for a specific application. The outcomes of this evaluation are described in this approval document. This text identifies the product(s) used in the system and determines the expected performance of the product, in order to enable the production, use and maintenance of product(s) or system(s), produced as specified in this approval document. Technical approval is accompanied by regular inspections and adjustments in line with technical advancements, if such modifications are appropriate. Technical approval must be reviewed every three years. For technical approval to be renewed, the manufacturer must provide evidence at all times that he is continuing to take necessary steps to achieve the performance standards described in the approval document. This monitoring is vital in terms of ensuring that the product reliably conforms to this technical approval. This task is assigned to a certification body designated by the UBAtc. On-going checks and statistical interpretation of results enable the associated certification to achieve a high level of reliability. 2 Limitation of use The fastening elements which are subject to traction are located in the compression zone of the concrete. The use of the fastening elements is limited to the connections which, upon completion of the construction, are only subjected to stresses which are negligible if changes in temperature occur such as: fastening of profiled steel sheet with external thermal insulation (e.g. non-ventilated flat roof); fastening of profiled steel sheet such as this which adjoins the inner climate in the case of double facade covering with insulation in-between; fastening of the profiled steel sheet within a heated building (e.g. floors). 3 Durability - corrosion The durability of the connection depends on the application, the climate, the air pollution and the protection of the sheet to be fastened. The intended use only comprises fasteners and connections, which are not directly exposed to external weather conditions or moist atmospheres (see also information provided in the Hilti technical literature). The approval and certification for conformity to the approval are independent of tasks conducted individually. The contractor and architect remain fully responsible for the conformity of the preparation with the provisions contained in the specifiations.

2 To be fastened roof wall DX KWIK on CONCRETE C20/25 C 45/55 See PART I DX BARDAGE on STEEL Thickness 4 mm t 6 mm See PART II 4 Part I: DX-KWIK : System for fastening of profiled steel sheet to concrete 4.1Subject The DX-KWIK fastening system is designed to fasten profiled steel sheet onto concrete. This system combines drill fixing with direct fastening using powder-actuated fastening tool: after pre-drilling a small hole in the concrete, the fastening element is driven into position. The approval relates to the aforementioned system, the technology of the design and construction but not the quality of implementation on site nor the calculation of the number of necessary fastenings per plate Requirements Drills and bits Drill : for example: TE 4-A, TE 6-A, TE 7-A, TE 7 Bit : step shank drill bit TX-C 5/ Components of powder-actuated fastening system For the fastener NPH2-42 L15 fastening tool fastener guide piston Hilti DX 76 X-76-F-Kwik X-76-P-Kwik DX 76 PTR X-76-F-Kwik-PTR X-76-P-Kwik-PTR DX /S3 75/NPH2 4.2Materials 4.2.1Fastener Figure 1: Fastener NPH2-42 L15 Cartridge (powder loads) : Hilti 6.8/18M yellow: low/medium blue: medium Type : Shank : Galvanising : Dimensions : Washers : NPH2-42 L15 Hardened carbon steel (58 HRC), in accordance with NBN EN /AC Thickness 8-16 microns Shank Ø = 4.5 mm with a conical head Total length L = 46.8 mm (ballistic point) Galvanised steel, DC 01 in accordance with NBN EN Diameter 15 mm; thickness: 1 mm. All powder-actuated fastening tools are equipped with an energy regulation allowing adjustment of the driving energy (setting range from 1 to 4) Profiled steel sheet Steel quality: S280GD-S350GD in accordance with NBN EN Thickness: between 0.75 and 2.0 mm. The system of the covering (external sheet, form etc.) does not form part of the approval. 4.3Fabrication and control All elements which form part of the system (powder-actuated fastener, powder-actuated fastening tools and cartridges) are fabricated in the HILTI factories and checked systematically at each stage of the production process. Headquarters: S.A. HILTI, 9494 Schaan, Liechtenstein. ATG 13/1824-2/8

3 4.4Application The DX-KWIK fastening process consists of 2 steps: 4.4.1Pre-Drilling The pre-drilling consists of drilling a hole of Ø = 5 mm with a step shank drill bit with a length of 23 mm through the profiled steel plate into the concrete. Figure 2 : Pre-drilling of the hole The distances to be respected for the fastening are as follows (figure 5 for facades and figure 6 for roofs) : between the fastener and the edge: 80 mm between two fasteners where two profiled steel sheets are fastened to one support: 80 mm between two fasteners which are positioned orthogonally: 2 x 80 mm. The total maximum thickness of all the profile sheets, including their finishing layers, to be fixed amounts to 5 mm. Figure 5 : Facade covering The fastening In the second step the fastener is driven through the plate into the pre-drilled bore hole. Figure 3 : Position of fastener before driving k 80 mm; a 80 mm; d 160mm This pre-drilling on the one hand guarantees an anchoring of the nails and on the other hand limits the scattering of the anchoring values. Bearing structures: columns or girders in reinforced concrete. The dimensions of these must amount to at least 160 mm of width and 160 mm of depth in the fastening zone. These limits also apply for the I-shaped girders and hollow concrete slabs. The quality of the concrete can vary from C 20/25 to C 45/55, in accordance with the standard NBN B Figure 6 : Roof covering The reinforcement of the concrete (quantity, implementation) meets Belgian standards (standard series NBN EN ) regarding braces and concrete covering among other things. Hitting the prestressing cables or bars must be excluded. Fastening must satisfy the following conditions (Figure 4) : the fastener stand-off (the distance between fastener head and profile sheet) varies between 7.5 mm and 11 mm. both washers must be in contact with one another and with the profiled steel sheet. Figure 4 : Connection with DX-Kwik ATG 13/1824-3/8

4 4.5Characteristics The number of fastening points is specified using the allowable values stated in table 1 and table 2 (pag.4); for the specification of the allowable forces the Belgian standards and Eurocodes are used The values stated in the tables are based on a statistical analysis of 1,280 results. Table 2: Profiled steel sheet for roof covering (see PDF for diagram) Steel Allowable sheet types of thickness connection S Tensile strength Fz allowable Shear strength Fq allowable The safety factors applied are: S = 2 applied on the characteristic values which are the result of a static load. S = 1.3 applied on the characteristic values which are the result of a dynamic load. Two possibilities are analysed: the double facade covering, fastening of cassettes (see table 1) and profiled steel sheet for roof covering (see table 2). Table 1: Double walled facade covering (cassettes) Steel sheet thickness S Tensile strength Fz allowable Shear strength Fq allowable (mm) (kn) (kn) 0,75 a, b, c, d 1,80 1,20 0,88 a, b, c, d 2,10 1,50 1,00 a, b, c, d 2,40 1,80 1,13 a, b, c, d 2,70 2,20 1,25 a 3,00 2,50 1,50 a 3,00 3,00 1,75 a 3,00 3,00 2,00 a 3,00 3,00 2,50 a 3,00 3,00 Types of connection (mm) (kn) (kn) 0,75 1,30 1,20 0,88 1,50 1,50 1,00 1,70 1,80 1,13 1,90 2,20 1,25 2,10 2,50 1,50 2,50 3,00 1,75 2,50 3,00 2,00 2,50 3,00 2,50 2,50 3,00 Arrangement of the fastenings: For intermediate plate thicknesses it is necessary to take the allowable values for tension or shear from the sheet with the closest thickness, smaller than that of the element to be fastened. The allowable force is reduced as follows when both forces, tension and shear, occur at the same time. F Q all,red = 1 fastener in near the raised edge Distance between fastener and raised egde : < 75 mm. F Z all,red = = ratio of acting shear force to tension force 2 connections symmetrical in respect of the raised rib Distance between the fastener and the raised edge: 50 to 75 mm. Both fasteners must be at the same distance to the raised edge = ratio of acting tension force to shear force ATG 13/1824-4/8

5 Base material thickness t II [mm] Base material thickness t II [mm] 5 Part II : DX-BARDAGE : System for fastening profiled steel sheet to thin steel elements 5.1Subject The DX-BARDAGE fastening system is designed to fasten profiled steel sheet onto a thin walled steel profile. This approval relates to the aforementioned system, the technology of the design and construction but not the quality of the implementation on site, nor the calculation of the number of necessary fastenings of the sheet. 5.2 Materials 5.2.1Fastener Figure 7 : Fasteners X-ENP2K-20 L15 and X-ENP2K-20 L15 MX X-ENP2K-20 L15 All powder-actuated fastening tools are equipped with an energy regulation allowing adjustment of the driving energy (setting range from 1 to 4) Profiled steel sheet Steel quality: S280GD-S350GD in accordance with NBN EN Thickness: between 0.75 and 1.0 mm The system of the covering (plate, form etc.) does not form part of this approval. 5.3Fabrication and control All elements which form part of the system (nails, powderactuated fastening tools and cartridges) are fabricated in the HILTI factories and checked systematically at each stage of the production process. Headquarters: S.A. HILTI 9494 SCHAAN, LIECHTENSTEIN 5.4Application The DX-BARDAGE fastening system involves driving a powderactuated fastener through the profiled steel sheet into thin base material (thickness between 4 and 6 mm). Figure 8 : Application limit as function of the strength and thickness of the supporting steel X-ENP2K-20 L15 MX 6,0 Type : Shank : Galvanising : Dimensions : Washers : 5.2.2Requirements X-ENP2K 20 L15 (MX) Hardened carbon steel (56 HRC), in accordance with NBN EN /AC Thickness 8-16 microns Shank Ø = 3.7 mm with a conical head Total length L = 25.5 mm (ballistic point) Galvanised steel, DC 01 in accordance with NBN EN Diameter 15 mm; thickness: 1 mm. The components of powder activated fastening systems consist of a powder-actuated fastening tool, a fastener guide or magazine, a piston and powder cartridges: For the fastener X-ENP2K-20 L15 fastening tool fastener guide piston DX 76 PTR X-76-F-15-PTR X-76-P-ENP2K-PTR DX 76 X-76-F-15 X-76-P-ENP2K DX S1 75/ENP2K-L 5,5 5,0 4,5 Applicable range of base materials S 235 S 355 4, Cartridge recommendation: S 275 Base material strength R m [N/mm²] The following charts Figure 9 and Figure 10 show the selection of the cartridge (power-load) and the recommended tool energy setting for the respective powder-actuated tools. Fine adjustment of the tool energy setting may be required based on job-site trials. Figure 9 : Cartridge selection and tool energy setting for DX 76 PTR 6,0 DX 76 PTR with X-ENP2K-20 L15 MX For the fastener X-ENP2K-20 L15 MX fastening tool fastener magazine piston DX 76 PTR MX 76-PTR X-76-P-ENP2K-PTR DX 76 MX 76 X-76-P-ENP2K DX MX 75/ENP2K-L 5,5 5,0 4,5 Blue 4 Blue 4 Red 2 Cartridge (powder loads) : Hilti 6.8/18M green: Low yellow: low/medium 4, Base material strength R m [N/mm²] blue: medium red: medium high ATG 13/1824-5/8

6 Base material thickness t II [mm] Figure 10 : Cartridge selection and tool energy setting for DX 76 6,0 5,5 5,0 4,5 DX 76 or DX 750 with X-ENP2K-20 L15 (MX) Blue 2 Yellow 4 Green 4 4, Base material strength R m [N/mm²] Blue 4 / Red 2 Figure 11: Connection with DX-BARDAGE X-ENP2K-20 L15 (MX) Total thickness of the profile plates to be fastened must be less than 4 mm which means that total covering is only possible if the total thickness of covering and profile plate together does not exceed 4 mm. 5.5Characteristics The number of fastening points is specified by making use of the allowable load values stated in table 1 and table 2: for the stipulation of the allowable forces, Belgian Standards and Eurocodes are used. The values stated in the tables are based on a statistical analysis of test results where the plate thickness and steel quality of base material and finishing layers apply as parameters. The safety factor applied is: S 2, applied on the characteristic values which are the result of a static load. Two possibilities are analysed: double facade covering, fastening of cassettes (see table 3) and profiled steel sheet for roof covering (see table 4). Table 3: double facade covering, cassettes (base material 4 mm to 6 mm) For the X-ENP2K-20 L15 and the X-ENP2K-20 L15 MX, the required fastener stand-off (distance between fastener head and profile sheet) varies between 7 and 11 mm (Figure 11). The edge distances and spacings to be respected in the fastening are as follows (Figure 12) : Direction Distance between fasteners (mm) a 80 Distance to the edge of plate (mm) e > 20 e 75 Distance to the edge of profile (mm) Profile A B k k 10 Steel sheet thickness S Allowable tension force Fz Allowable shear force (mm) (kn) (kn) 0,75 1,25 1,20 0,88 1,50 1,40 1,00 1,90 1,55 Steel sheet thickness S Table 4 : Profiled steel sheet for roofs (base material 4 mm to 6 mm) Allowable types of connection Allowable tension force Fz FQ Allowable shear force FQ (mm) (kn) (kn) 0,75 a, b, c, d 1,80 1,70 0,88 a, b, c, d 2,10 2,00 1,00 a, b, c, d 2,70 2,20 Types of connection Figure 12 : Edge distances and spacing For intermediate plate thicknesses it is necessary to take the allowable values for tension or shear from the sheet with the closest thickness, smaller than that of the element to be fastened. ATG 13/1824-6/8

7 The allowable force is reduced as follows where both forces, tension and shear, occur at the same time: F Q all,red = F Z all,red = = ratio of acting shear force to tension force = ratio of acting tension force to shear force 6 Conditions A.Only the company referred to on the first page as the holder of an ATG and company/companies responsible for marketing the object of the approval may call for the application of this technical approval. B.This technical approval refers exclusively to the product or system, of which the trade name is mentioned in the header. Holders of a technical approval are not permitted to use the name of the UBAtc, its logo, the ATG brand, the text or approval number to demand the evaluation of products that fail to comply with the technical approval, and/or concerning products and/or systems and/or properties or characteristics that do not form the object of the technical approval. C.Information provided in any way for (potential) users of the product or system described in the technical approval (e.g. for clients, contractors, consultants, etc.) by the holder of the ATG or his designated and/or approved installation engineers must not contradict the content of the approval text or information referred to in the approval text. D.Holders of a technical approval are bound at all times to provide UBAtc asbl and the certification body designated by the UBAtc with prompt or prior notification of any adjustments made to primary materials and products, instructions for preparation, the manufacturing and construction and/or equipment process, so that they are able to judge whether it is necessary to adjust the technical approval. E.The copyright belongs to the UBAtc. ATG 13/1824-7/8

8 UBAtc asbl is an approval body and member of the European Union of Agrément for construction (UEAtc, see notified by the FPS Economy within the framework of Directive 89/106/EEC and member of the European Organisation for Technical Approvals (EOTA, see Certification bodies designated by UBAtc asbl operate in compliance with a system that is set to be accredited by BELAC ( This technical approval has been published by UBAtc, under the responsibility of the approval body BCCA, and based on favourable feedback from the specialist "" Group, issued on December 21 st In addition, the BCCA certification body has confirmed that the production process meets the conditions for certification and that a certification agreement was signed by the ATG holder. Date of issue: February 12 th For UBAtc, declaration of the validity of the approval process For the approval and certification body Peter Wouters, director Benny De Blaere, directeur This technical approval shall remain valid, provided the product, its manufacture and all processes that are appropriate for this purpose: - are maintained, in order to achieve, as a minimum, the performance levels defined in the approval document; - are continuously monitored by the certification body, which confirms that the certification continues to be valid; If these conditions are no longer met, the technical approval shall be suspended or withdrawn and the approval document shall be deleted from the UBAtc website. The validity and latest version of this approval document can be verified by consulting the UBAtc website ( or by directly contacting the UBAtc office. ATG 13/1824-8/8