Archetech Issue 59 2022 | Page 96

SOLLERTIA
while adapting and integrating in a sensitive way with the original building ’ s exceptionally complicated structural engineering and mechanical elements . The architectural membrane used in the project is non-stretchable , thus great precision in the design of all the structural elements and the membrane was of utmost importance to avoid any kinks . The tensile membrane shapes were developed to ensure that the tensile fabric surfaces never conflict with existing or projected walls , structures , and mechanical elements . Additionally , this specific membrane possesses acoustical properties that minimize reverberations , thereby improving the comfort level within the space .
Each section of the tensile fabric walls is unique , with scalene triangular truss beams curving in all directions at the top of each section , shaping the textile surfaces . The non-repetitive nature of the structure called for the separate design and fabrication of each and every element of these truss beams . Raising the bar on the discipline , and rendering the seemingly impossible possible , Sollertia developed a series of unprecedented membrane panels measuring up to 60 ’ x 60 ’, which had to be custom-formed to perfection with no room for error . Through a delicate balance of tension , cantilevering , and triangular suspension beams , the Sollertia team curved and tensioned the skin across steel and curved aluminum structures , using mechanical junctions to facilitate a variety of movements and on-site adjustments . Based on the initial design imagined by the architects , Sollertia carried out 3D modeling and researched shapes for the textile membrane panels in order to closely match their vision with that of the client . Sollertia also performed an accurate analysis of the loads in the membrane panels to facilitate the design of adequate rigid structural systems .
Along the way , everything covered by the membrane panels came into play , requiring extremely precise design and manufacturing specifications to accommodate ventilation

“ Each section of the tensile fabric walls is unique , with scalene triangular truss beams

curving in all directions at the top of each section , shaping the textile surfaces .
systems , doorways , sprinklers , electrical outlets , and more . The finished product , measuring approximately half a kilometer in length , and rising nearly four storeys in height , is a visually stimulating contribution to the unique atmosphere of the Biodome .
“ We were faced with several challenges simultaneously on this project , including the very complex organic shape of the walls , the many obstacles of the original building to be integrated or bypassed , the various adjustment systems developed and the strategy of the installation sequences ,” notes Mr . Le Bel . “ In the end , it was a tremendous success that validates our firm ’ s experience and expertise , and part of its legacy will be that it is one of the first major applications of interior tensile fabric in Montreal .”
LESSONS LEARNED
For Sollertia , the Biodome project was a laboratory in motion , inspiring the firm to innovate its discipline through a series of new products and processes that further distinguishes the firm within the textile architecture space . In response to the complex shapes of the textile structures , Sollertia pushed the limits of their specialized engineering software for the design , analysis , and fabrication plans of tensile membranes . The firm also developed new methods and tools for installing large membranes in complex environments as large as 100 ’ x 100 ’.
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