ArboSkin: Durable and Recyclable Bioplastics Facade Mock-Up

ArboSkin: Durable and Recyclable Bioplastics Facade Mock-Up

Press release ITKE University of Stuttgart ArboSkin ArboSkin: Durable and Recyclable
Bioplastics Facade Mock-Up
ITKE (Institute for Building Construction and Structural Design) ‐Prof. Dr.‐Ing. Jan Knippers, University of Stuttgart, Germany; Faculty for Architecture and Urban Planning 1 ArboSkin Bioplastics-Facade Mock-Up; photo: Manfred Richard Hammer, ITKE
Mock‐Up: The bioplastics facade mock‐up was created within the framework of Research Project Bioplastic Facade, a project supported by EFRE (Europäischer Fonds für Regionale Entwicklung/ European Fund for Regional Development). It demonstrates one of the possible architectonic and constructional applications of the bioplastic materials developed in the course of this project. The blueprint is based on a triangular net made up of mesh elements of varying sizes. Research Project Bioplastic Facade: ITKE can look back on numerous years of experience in both teaching and researching the computer based planning, simulation, and production of cladding for buildings with complex geometries. Currently, materials made from petroleum‐based plastic, glass, or metal are used to encase such structures. Thermoformable sheets of bioplastics will constitute a resource‐efficient alternative in the future as they combine the high malleability and recyclability of plastics with the environmental benefits of materials consisting primarily of renewable resources. Collaborating materials scientists, architects, product designers, manufacturing technicians, and environmental experts were able to develop a new material for facade cladding which is thermoformable and made primarily 02.10.2013 page 1/5 Press release ITKE University of Stuttgart ArboSkin (>90%) from renewable resources. Developed by project partner TECNARO within the framework of the research project, ARBOBLEND®, a special type of bioplastic granules, can be extruded into sheets which are further processable as needed: They can be drilled, printed, laminated, laser cut, CNC‐milled, or thermoformed to achieve different surface qualities and structures and various moulded components can be produced. The semi‐finished products serve as cladding for flat or free‐formed interior and exterior walls. The material can be recycled and meets the high durability and inflammability standards for building materials. The goal of the project was to develop a maximally sustainable yet durable building material while keeping petroleum‐
based components and additives to a minimum. The ecological audit was completed by project partner ISWA (Institute for water engineering, water quality, and waste management). Furthermore, the materials’s resistance to microbial degradation was determined. Innovative Character of the Research Project: This research project marks the first occasion for development of bioplastic sheets that are made primarily of renewable resources, can be freely formed, and are furthermore designed for application in the building sector and specifically for building exteriors. At the beginning of this project, such a product was not available on the market. The conception of this material as flame‐retardant sheet material also aims at applications for building interiors (spek DESIGN). With this new development, we can therefore soon offer a product that addresses two trends: ‐ the increasing demand for resource‐efficient and sustainable building materials ‐ the increasing development of buildings featuring double‐curved geometries and planar facade components with 3D effects (relief) Project Information: Duration of project: Mock‐Up Presentation: 20 Dec 2011‐31 Oct 2013 17 Oct 2013 Mock‐Up Production Concept: Extruded sheets made of the bioplastic materials developed by TECNARO throughout the project are thermoformed into identical pyramidal moulding components. Project partner BAUER THERMOFORMING is an expert at thermoforming thick‐walled bioplastic sheets. The necessary process of contour milling allows for multiple variations among the moulding components as identical thermoformed parts can be processed differently using various CNC milling paths. This allows for the cladding of freeform areas with a single moulded component. The plastic waste that results from CNC milling process is regranulated and directly returned to the extruding process. At the end of their useful life, the facade sheets can be composted or disposed of almost carbon‐neutrally. 2 Concept sketch: Realization of freeform areas from identical thermoformed parts that are processed differently using various
milling paths
02.10.2013 page 2/5 Press release ITKE University of Stuttgart ArboSkin 3 Schemata Production and Recycling Mock‐Up Supporting Structure: The freeform bioplastic facade functions as a sheet material based shell structure with additional loadbearing and bracing ring carriers and joists. Contrary to common non‐loadbearing facade constructions, this construction involves the loadbearing properties of the double curved skin (made of 3,5 mm thick bioplasticpyramids that are mechnically coupled) in the loadbearing and bracing processes of the entire system. On the one hand, this innovative measure shows the potential of modified bioplastics as a bracing material (up to E≈4000N/mm²) suitable for exterior applications as it adds only a minor load due to its own weight (13kN/m³); on the other hand, it allows for the construction of a facade that utilizes a minimized number of points of support and/or mounting brackets on the structural work behind it. 02.10.2013 page 3/5 Press release ITKE University of Stuttgart ArboSkin 4 FE-Model Wind and snow loads
Mock‐Up Data: location: date of completion: area of facade: Material: Building: Keplerstr. 11‐17/ Unicampus Stadtmitte October 2013 145m² biobased thermoplast (equipped with flame retardants) made from >90% renewable resources escape stairwell of lecture hall M17.02 Mock‐Up Planning and Realisation: ITKE (Institute for Structural Engineering and Constructive Design) ‐Prof. Dr.‐Ing. Jan Knippers, University of Stuttgart, Germany; Department for Architecture and City Planning Projektleitung: Dipl.‐Ing. Carmen Köhler Konstruktion und Bauleitung: Dipl.‐Ing. Manfred R. Hammer Tragwerksplanung: Dipl.‐Ing. Thiemo Fildhuth Studentisches Entwurfsteam: Martin Loučka, Peter Kohlhammer, Adrian Grygar Geometrieprogrammierung: Martin Loučka Realisierung: Adrian Grygar, Serge Deisner, Maximilian Kurz, Martin Loučka, Paco Motzer, Jan Tondera, Dennis Gerlach, Alexander Mironov, Dominik Heizmann, Svenja Felis, Maximilian Schäfer, Benjamin Fritsch, mit der Unterstützung von Michael Tondera (Fakultätswerkstatt Architektur) Fassadenmaterial: Dr. Michael Schweizer, TECNARO GmbH, Ilsfeld‐Auenstein Fertigung Pyramiden: Frank Braun, Hans‐Peter Braun, BAUER THERMOFORMING GmbH & Co. KG, Talheim 02.10.2013 page 4/5 Press release ITKE University of Stuttgart Project management: Construction Management: Structural Design: Student Design Team: Geometry Programming Realisation: Facade materials: Pyramid Production: ArboSkin Dipl.‐Ing. Carmen Köhler Dipl.‐Ing. Manfred R. Hammer Dipl.‐Ing. Thiemo Fildhuth Martin Loučka, Peter Kohlhammer, Adrian Grygar Martin Loučka Adrian Grygar, Serge Deisner, Maximilian Kurz, Martin Loučka, Paco Motzer, Jan Tondera, Dennis Gerlach, Alexander Mironov, Dominik Heizmann, Svenja,Felis, Maximilian Schäfer, Benjamin Fritsch supported by Michael Tondera (Fakultätswerkstatt Architektur) Dr. Michael Schweizer, TECNARO GmbH, Ilsfeld‐Auenstein Frank Braun, Hans‐Peter Braun, BAUER THERMOFORMING GmbH & Co. KG, Talheim ITKE, a “Landmark in the Land of Ideas”: In Germany’s nation‐wide competition “Landmarks in the Land of Ideas 2013/14,” ITKE’s idea for the conception of bioplastic facades made from thermoplastic semi‐finished materials in the framework of Research Project Bioplastic Facade received one of fourteen awards in the science cateogry. For the first time, this competition had adopted a theme: „Ideen finden Stadt,“a pun on the German words “Stadt” (city) and “stattfinden” (to take place), resulting in a playful tension between “Ideas take place” and “Ideas take to the city.” The initiative “Deutschland ‐ Land der Ideen” / “Germany ‐ Land of Ideas” and Deutsche Bank confer these awards to honor ideas that suggest solutions for the challenges facing the cities and regions of tomorrow. In the course of Research Project Bioplastic Facade, project leader ITKE and its project partners TECNARO, BAUER THERMOFORMING, spek DESIGN, andUniversity of Stuttgart’s Institute for water engineering, water quality, and waste management were able to answer the question how freefromable and recyclable semi‐
finished products with a renewable resource content of more than 90% could be produced. http://www.land‐der‐ideen.de/ausgezeichnete‐orte/preistraeger/biokunststoff‐fassade Konsortium Forschungsprojekt Biokunststoff‐Fassade Project leadership Materials Research + Architecture Applications Institut für Tragkonstruktionen und Konstruktives Entwerfen (ITKE), Universität Stuttgart, Institutsleitung Prof. Dr.‐Ing. Jan Knippers, Projektleitung Dipl.‐Ing. Carmen Köhler, [email protected]‐stuttgart.de Environmental Technology + Ecological Audit Institut für Siedlungswasserbau, Wassergüte‐ und Abfallwirtschaft, Universität Stuttgart, Dr.‐Ing. Klaus Fischer, [email protected]‐stuttgart.de Product Design + Applications spek DESIGN GbR, Schopenhauerstr. 39, 70565 Stuttgart, Dipl.‐Ing. Eberhard Kappler, e.kappler@spek‐design.de, Tel. 0711/ 745431 34 Materials Development TECNARO GmbH, Burgweg 5, 74360 Ilsfeld‐Auenstein Dr. Michael Schweizer, Dr. Lars Ziegler, [email protected] ,Tel. 07062/ 9178902 Manufacturing Technology BAUER THERMOFORMING GmbH & Co. KG, Heilbronner Straße 8, 74388 Talheim, Frank Braun, Hans‐Peter Braun f.braun@bauer‐thermoforming.de, 07133/987650 02.10.2013 page 5/5 Press release ITKE University of Stuttgart ArboSkin Förderung: Förderung im Fachbereich Umwelttechnik (UT 400‐405) durch die EU mit Mitteln des Europäischen Fonds für regionale Entwicklung (EFRE) und durch das Land Baden‐Württemberg aus Mitteln des Ministeriums für Umwelt, Klima und Energiewirtschaft. Ansprechpartner: Koordination Prof.‐Dr.‐Ing. Jan Knippers, [email protected]‐stuttgart.de, Tel. 0711/ 685 83280 Dipl.‐Ing. Carmen Köhler, [email protected]‐stuttgart.de, Tel. 0711/ 685 83283 02.10.2013 page 6/5