All rights reserved © 2015

Bent glass


Tempered glass has a mechanical parameters which distinguish it from unhardened glass. In   particular,   it   is   five   to   seven   times   more   resistant   to   mechanical   stress   and   at   the   same   time   is   also resilient,   meaning   that   they   can   be   bent   to   a   limited   extent   by   applying   the   load.   To   what   extent?   Good question. It is possible to answer basing on empirical knowledge. Experience shows that the radius at   which   can   be   bent   toughened   safety   glass   depends   on   its   thickness:   the   thinner   the   glass,   the   more it turns vulnerable to bending. These two features tempered glass - a considerable resistance to mechanical stress and   resilience   have   been   used   in   an   innovative   project,   which   is   the   glass   roof   over   the   station Poznań   Fast   Tram   in   Poznan.   Roofing   surface   includes   2   740   m2,   and   is   used   glass:   55.2   ESG   with the   test   HST.   Bending   radius   glass   pane   is   7   m.   The   size   of   a   single   pane   of   glass   is   950   ×   2   800 mm. The innovative nature of implementation lies in the fact that the contractor has done a coating of flat glass mechanically bent on site.   During construction, the contractor dealed with  great number of new technical problems. It was necessary to build a device for mechanical bending the glass, it was necessary to design a   new   profile   aluminum   hold-down   window   lengthwise,   had   finally   developed   a   very   effective way of fixing the glass clamping profile steel structures.   Technology   of   the   coating   was   as   follows.   First,   on   a   steel   structure   in   the   interface   between   two panes of glass welded studs A2 with a diameter of 8 mm. Then, on the ground of bent sheets of   glass   by   means   of   said   device   and   bent   administered   in   place   of   the   foundation.   Aluminum pressure   bar   had   to   be   thicker   than   those   used   in   traditional   systems   mullion-transom:   strip width is 100 mm, and support the glass is 35 mm.   Additional advantage of mentioned above coating is no transverse pressure on the outside of   the   windows.   In   this   way,   rainwater   flow   remains   unfettered.   The   transverse   sealing   two panes is a silicone grout.   Glass coating has been designed by Mirosław Filipiak (Profibud company from Poznan), and    executed    by    company    CC    Montage    Tadeusz    Czyżewicz    (,    who reported   technical   details   of   construction   of   the   Polish   Patent   Office   (Application   No.   P.   400658) under the name "bent glass coating and a method for manufacturing a bent glass layer." The   described   solution   we   address   to   architects.   It   is   an   interesting   way   to   implement   arched roofs, the costs of which are the same as in the case of flat roofs.   Special   thanks   to   Sapa   Building   Sp.   o.o   for   professional   support   in   the   design   and   manufacture of special glass clamping profile. Tadeusz Czyżewicz

Quick contact

CC Montage Ltd. Piaski 9 Street PL 87-800 Włocławek T:  +48.542521591 F:  +48.542521449 Tadeusz Czyżewicz – President M: +48 601 66 25 04 Piotr Matczak - Project Manager, Constructor M: +48 607 727 636 Olimpia Dzięcielewska-Verbeke - Project Coordinator M: +33 630 02 00 80 Agata Tadajewska - Constructor M: +48 693 36 36 10 Joanna Najmowicz-Gębicka - Finanse M: +48 697 701 410 Agnieszka Przybylska - Finanse & Marketing M: +48 693 36 36 11