ETFE Membrane Facade Umuforomo w'Impu Ebyiri by Petr Franta

ETFE Membrane Facade Umuforomo w'Impu Ebyiri by Petr Franta is a highly esteemed winner of the very prestigious 2022 Igihembo cya A' Design Award cya Buronze in Igishushanyo cy'Ubwubatsi Competition Category.

BuronzeUbwubatsi· 2022

ETFE Membrane Facade Umuforomo w'Impu Ebyiri

by Petr Franta

Client: Ctu

Igihembo cya A' Design Award cya Buronze Winner in Ubwubatsi Category

16,559

Verified Award Winner

Verify Award Status for #134989

Visit Site View at A' Design Award Press Release Award Badge

Colors

The Design

About ETFE Membrane Facade Umuforomo w'Impu Ebyiri

Umuforomo wa Membrane ya ETFE ni umuforomo w'impu ebyiri wateguriwe inyubako y'ubushakashatsi n'iyigisha. Impu yo hanze igizwe n'amasitofu meza y'ethylene tetrafluoroethylene yashizweho ubushyuhe kugira ngo ahuze, afite ubugari bwa metero eshatu kandi agera ku burebure bwa metero mirongo itandatu na kabiri, agumizwa mu mikoro y'umwuka ihoraho kandi ashyirwa mu buryo bw'agambanyi ku nyubako y'icyuma y'inyongera hifashishijwe ibikoresho by'aluminium biboha. Umwanya uri hagati y'izo mpu ukora nk'ikusanyirizo ry'izuba, kandi umwuka ushyushye ujyanwa mu bikoresho by'ivunika ry'umwuka, bigatuma ingufu zikoreshwa zigabanuka kugera kuri 30 ku ijana. Iyo membrane isukurwa n'amazi y'imvura kandi ikongerera kandi umutekano w'amajwi uturuka ku muvuduko w'ibinyabiziga mu muhanda.

The Recognition

About the Igihembo cya A' Design Award cya Buronze

ETFE Membrane Facade Umuforomo w'Impu Ebyiri ni uwegukanye Igihembo cya A' Design Award cya Buronze, ishimwe ry'agaciro gakomeye ritangwa ku bishushanyo by'indashyikirwa birangwa no guhanga, ubwenge n'ubushishozi. Abegukanye Buronze ni ibihangano bifite ubuhanga bwinshi kandi bihanga cyane, bishimangira uburambe, ubwenge n'ubushobozi bw'ababihanze. ETFE Membrane Facade Umuforomo w'Impu Ebyiri biteganyijwe ko izaba ikintu cyubahwa, gishimwa kandi gikundwa, gifite ubunyamwuga n'udushya. Iki gishushanyo cyegukanye Buronze gikoresha uburyo bwiza mu buhanzi, ubumenyi, ubushushanyo n'ikoranabuhanga kandi kirarenze mu gutaha ku tuntu duto. ETFE Membrane Facade Umuforomo w'Impu Ebyiri ishimisha ibyo dukeneye, ikora ku byifuzo byacu, itwara amarangamutima yacu kandi ikurura amatsiko yacu.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: Applying Double Skin Facade with ETFE Ethylen Tetrafluor Ethylen transparent membrane assembly for energy saving up to 30 percent. Acting as solar collector with recuperation of hot air on the top floors in winter season.
Additional acoustic protection on busy traffic streetscape.
Aesthetics, added value as large span between structural members.
Self cleaning exterior of the facade ETFE membrane with additive chemical component rejecting dirt as automatic cleaning of the facade with rain water.
Dimensions & Packaging: Pneumatic ETFE membrane cushions are 3 m wide and up to 62 m long, installed diagonally and kept under constant air pressure 300 Pa.
Cushions are anchored on secondary structural steel system with aluminium extrusion clamps structurally designed for wind load.
Acoustical properties in combination with triple glazing system 47 dB adds 10 dB to 57 dB in composite calculation.
Area of ETFE membrane facade is divided in two parts 1294 m2 and 570 m2.
Height of facade 20 m. Length of facade is 68 and 30 m.
Tags: ETFE, Ethylen TetraFluor Ethylen membrane, Double skin pneumatic facade,
Production Technology: 3 m wide ETFE Ethylen Tetrafluor Ethylen cushions in south and west facade with seam in aluminium profiles on the secondary steel structure are welded cushions and kept under constant air pressure 300 Pa.
Weight is 1% of glass installation of outer skin.
Recuperation of hot air from facade as solar collector, energy saving up to 30%.
Self cleaning exterior ETFE membrane with additive chemical component rejecting dirt cleaning of the facade with rain water.
ETFE 50-years lifespan of the material.
Design Challenge: Turning of the corner of diagonally placed pneumatic cushion of ETFE membrane detail in double skin facade.
Special aluminium extrusion detail was developed (with live size models) especially for this project to allow the twisting diagonal clamp with 1000 mm radius, placed on secondary steel tubing. We had to comply with European standards DIN different for aluminium and steel. Large mock-ups, samples and models were part of the design process to make sure that the membrane does not wrinkle.
Research: Design research was very complex with scientists, structure engineers in applications ETFE membrane around the world (London, Munich, New York) - design datas with manufacturers, designers.
We searched design and structural properties of Ethylen TetraFluor Ethylen transparent membrane facades for building types use, duration in life span, wind load on pneumatic cushions, aluminium clamps detailing, secondary steel structure detailing, transparency properties, weight, width versus span dimensions.
Inspiration: Presentation of 8 x 6 m sample of ETFE membrane cushion with pneumatic equipment for Allianz Arena in Munich by Herzog De Meuron Architects. It was used for football stadium, in England for museum in Leicester by Nicolas Grimshaw and other non transparent use. After researching those study cases around the world, later came to me the idea to use transparent double skin membrane for office type building for scientists, using transparent film membrane in double skin facade instead of glass.
Project Duration: Project design started in 2008 in Prague with presentation to Technical university scientists committee.
Realized in years from 2015 to 2017 on Czech Technical University in Prague campus for Czech Institute of Informatics, Robotics and Cybernetics of the CTU in Prague.
Operation Flow: Applying double skin facade with ETFE membrane assembly for energy saving with recuperation of hot air on the top floors, saves 30 percent of an energy consumption.
From double facade acting as solar collector hot outside air is sucked into the ventilation HVAC units on each floor from two places - from south facade for the winter and transition period and from the north facade in the summer. (Solar collector - double facade between the glass facade and the outer facade of the ETFE facing south).
Patents: Design of pneumatic cushions fasade with ETFE Ethylen TetraFluor Ethylen trademark Taiyo Europe.
Team Members: Architect: Petr Franta
Architect: Stepan Sekera
Architect: Petr Sobotka
Image Credits: Image #1 Photographer Jiří Ryzsavy
Image #2 Photographer Jiří Ryzsavy
Image #3 Photographer Jiří Ryzsavy
Image #4 Photographer Jiří Ryzsavy
Image #5 Photographer Jiří Ryzsavy