Technical Evaluation 2/11-1448*V1 Cancels and replaces Technical Evaluation 2/11-1448
Vitrage Extrieur Attach Structural Bolted Glazing
Point-fixed fittings and spiders for Structural Bolted Glazing window walls
Sadev Contractor: Sadev
Chemin des Poses BP 18 FR-74330 Poisy
Tel.: +33 4 50 08 39 00 Fax : +33 4 50 08 39 49 E-mail: email@example.com Website: www.sadev.com
Committee responsible for drawing up Technical Evaluations (order of 21 March 2012) Specialised Group No. 2
Constructions, Faades and Lightweight Partition Walls
Examined for registration on 4 July 2012
Secrtariat de la commission des Avis Techniques - Technical Evaluation Committee Administrative Office CSTB, 84 avenue Jean Jaurs, Champs sur Marne, FR-77447 Marne la Valle Cedex 2 Tel.: 01 64 68 82 82 - Fax: 01 60 05 70 37 - Website: www.cstb.fr
Technical Evaluations are published by the Technical Evaluation Administrative Office, provided by the CSTB (French Building Scientific and Technical Centre ) Authenticated versions are freely available on the CSTB's website (http://www.cstb.fr) CSTB 2012
Specialised Group no. 2, Constructions, Facades and Lightweight Partition Walls, of the Committee responsible for drawing up Technical Evaluations on 10 April 2012 examined SADEV's procedure presented by the company SADEV. Based on this procedure, it has drawn up the following Technical Evaluation which replaces Technical Evaluation 2/11-1448. This Evaluation has been drawn up for uses in European France.
1. Brief definition
1.1 Brief description Point-fixed pass-through devices and support fittings for single glaz-ing in an internal or external frame that is usually metal for producing vertical or inclined window walls. The system, designed only for single (monolithic or laminated) and flat glazing, is made up of pass-through fixing devices and lugs fastening onto the frame of the building.
1.2 Identification The fixings and fastenings bear the indelible marking SADEV. The manufacturer's logo and SADEV's logo are marked indelibly on the glass panels.
2.1 Accepted area of use Vertical or inclined window walls in premises whose destination means that the possibility of water ingress is accepted in the meaning of CSTB Specification 3574 and for which deformation of the glazing of 1/100th of the free edge between point-fixed fastenings under loading at ser-vice limit state (SLS) is also accepted. Limited to works for which it will have been justified through a calculation report or experimentally from the design of glass products and for which the glazing panels are connected to the frame independently of each other.
2.2 Assessment of the system
2.21 Fitness for purpose
Environmental and health data No FDES (Fiche de Donnes Environnementales et Sanitaires - Envi-ronmental and Health Data Sheet) exists for this product (procedure). Note that FDES do not come under the fitness for purpose examination for the product (procedure).
Safety under climatic loads and weight of glazing Window walls are not involved in the stability of the building which is incumbent on the framework of the latter. Deformations of the edges of the glass panels at service limit state (DTU wind rules P 06.002) are limited to 1/100th of the distance be-tween the point-fixed fastenings. For glass panels that are 19 mm thick and include six pass-through fastenings and if cantilevered the radius of curvature at ultimate limit state on intermediaries supports must be determined by testing, on a case-by-case basis, according to CSTB Specification 3574. The constraint limitations to the right of the fixing points, the play provided for in the fittings and the arrangements for immobilising the latter mean that it can be considered that the correct stability of the window walls is provided under the action of climatic and wind stresses and on the other hand if there is accidental failure of a glass unit.
Stability in an earthquake zone According to PS 92 rules, the meeting of E1 earthquake-resistant requirements must be assessed on a case-by-case basis. Requirement E2 is not a priori met. According to the decree of 22 October 2010, the area of use is limited to zone 1 for size I, II, III and IV building catego-ries and zone 2 for size I and II building categories.
Safety under impacts Meeting safety requirements regarding the risk of falling can be en-sured through a case-by-case check and furthermore for monolithic glass panels by combining a residual protection according to NF stan-dard P 01-012
Fire safety Must be assessed under the same conditions as those for glass facades with single glass panels of the same type.
Heat insulation Heat regulations may only be followed in a very limited number of cases because of the use of single glazing. Foreseeable condensation consequences should be assessed in the same way as for works of the same type made up of single glazing panels implemented in a traditional way.
Sealing Sealing between the glass panels depends on the efficiency of the mastic. Any damage to this barrier will be the source of ingress which should be taken into account with regard to the purpose of the prem-ises concerned.
2.22 Durability Maintenance The nature of the materials used means that risks of corrosion are limited.
2.3 Manufacture and checking The provisions put in place by the manufacturers are appropriate for ensuring consistency in quality.
2.4 Implementation Implementation, carried out by companies who have requested techni-cal support from the company SADEV, requires precautions to be taken, particularly for: adjusting the fittings , controlling the tightening torque applied to the point-fixed fittings , respecting the width of the seals between the glass panels. Damaged glass panels can be replaced individually.
3. Technical Specifications
3.1 Common Technical Specifications
3.11 Design conditions The common Technical Specifications are made up by section 3 of CSTB Specifications 3574, Structural Bolted Glazing (VEA - Vitrages Extrieurs Attachs) which is the subject of a Technical Evaluation General conditions for design, manufacture and implementation" par-ticularly for: the choice and design of glass products, the design of fastening devices and spiders, meeting safety requirements, the acceptable loads per arm of the fittings are such that:
- deformations under loading at SLS are less than 1 mm for forces applied parallel and perpendicular to the glass panels,
- when they are weighted, they do not cause the yield point of the spider's material to be exceeded.
- local deformations of the fittings under load combinations that are not weighted must be less than 1 mm.
- deformations in the plane of the window walls, due to differential movement of the frames and expansion of the glass products should not generate compression or pulling in the mastics be-tween the glass panels greater than those that are acceptable as given in DTU 44.1 (Sealing of facade joints using mastic NF standard P 85-210, February 2002) and be compatible with the system's anticipated gaps.
3.12 Manufacturing conditions See CSTB Specifications 3574, Section 4.
3.13 Implementation conditions See CSTB Specifications 3574, Section 5.
3.2 Special Technical Specifications
3.21 Design conditions The maximum weight of the glass panels will be respected. For glass panels in a non-rectangular format, sizing may be affected based on the defined rectangle, failing which an experimental check should be made.
3.22 Manufacturing and inspection conditions The glass panels are inspected according to the provisions defined in the technical file and according to SADEV's specifications. The manufacturer is obliged to carry out an inspection of the manufac-ture of the point-fixed fittings and the fastenings.
3.23 Implementation conditions SADEV window walls or windows may only be implemented in struc-tures specially designed for this purpose: The deformation of the frames under non-weighted load combina-
tions must meet NF standard EN 13 834 criteria for facade works and the 1/200th criterion for window works.
For windows with a small incline, the total deformations of the glass panels, the secondary frame and the carrier frame under non-weighted load combinations must not cause a negative incline.
Local deformations of the frames to the right of the fittings under non-weighted load combinations must be less than 1 mm.
Overall Assessment The use of the SADEV procedure in the agreed area of use has been assessed favourably.
Validity Up to 30 April 2016.
For Specialised Group no. 2 Chairman M. KRIMM
4. Additional remarks from the Specialised Group
This 3rd revision includes the following modifications: Update of paragraph 4.1 (glass products)and table 14 (list of glass
fabricators) At the time of the 2nd revision, the following modifications had been done: The inclusion of rectangular-shaped laminated glass panels, 15mm
thick, cylindrical holes for the internal component and 6 mm-thick, cylindrical holes for the external component.
Addition of R1106 point-fixed fittings . Addition of R1038 point-fixed fittings . Addition of S3006 fittings . SADEV'S Structural Bolted Glazing window wall and window system, like most systems of this type, impose great accuracy in the frame and require special precautions to be taken when implementing for the positioning and adjustment of the spiders, the tightening of the nuts and respecting the widths of the seals. The sealing between the glass panels is