LCT ONE

from Wikipedia, the free encyclopedia
LCT ONE
North side-2.JPG
North side of the LCT ONE in Dornbirn
Basic data
Place: Dornbirn
Construction time : 2011-2011
Opening: 19th November 2012
Architectural style : Modern
Architect : Hermann Kaufmann
Use / legal
Usage : office
Client : Cree GmbH
Technical specifications
Height : 27 m
Height to the roof: 27 m
Floors : 8th
Elevators : 1
Floor area : 2500 m²
Building material : Wood , concrete
address
City: Dornbirn
Country: Austria

LCT ONE is a large, eight-storey timber hybrid building in Dornbirn , Vorarlberg , Austria . The building was unique in Austria in terms of the wood-hybrid construction, until another building was built in Montafon (LCT TWO) in 2012/2013 . In terms of design, size and appearance, it is still the only eight-storey building of this type in Europe . It is one of the tallest wooden buildings in Austria and was a prototype for the wood-hybrid construction used here.

Surname

LCT is derived from LifeCycle Tower . A LifeCycle Tower is a building that is supposed to have a CO 2 balance that is up to 90% better . The building consists predominantly of the renewable raw material wood and only to a lesser extent of concrete.

ONE refers to the fact that this is supposed to be the first building in the world that was built using this method of construction with regard to the CO 2 balance during construction, operation and also demolition (according to the optimized life cycle costing - life cycle costing , LCC).

Development, planning and implementation

The entire planning for the realization of the LCT ONE was carried out on an interdisciplinary basis with several companies from the fields of architecture, statics, building services, process management and others. The idea for the realization is based on a building lifecycle management and sets the previously executed BIM (Building Information Modeling) into practice.

LCT ONE, model view
LifeCycle Tower, model view
LCT ONE, shell construction, Dornbirn
LCT ONE, completed, Dornbirn
LCT ONE demonstration ventilation outlets and technology on the 2nd floor

The scientific development of the LifeCycle Tower began in 2009 and was divided into three planning phases:

  • In the “8+” research project, the technical feasibility of a high-rise building, which consists mainly of wood as a building material, was examined.
  • The subsequent research project "LifeCycle Tower" dealt with the technical and economic system development.
  • The third phase was the planning and execution stage for the LCT ONE.

The Vorarlberg construction company Cree GmbH developed a system construction (LCT system) with prefabricated components on the basis of these results. The construction of LCT ONE started in September 2011. The assembly of the prefabricated wooden modules on a prepared reinforced concrete foundation took eight days. The eight floors arranged around the concreted stairwell core, which had to be used for fire protection reasons, were installed completely weatherproof in 10 days. The system construction could thus be tested under real conditions.

Based on this prototype , the advantages of the building concept, such as:

  • Resource and energy efficiency,
  • significantly improved CO 2 balance,
  • significantly shorter construction time after master builder work,
  • Possibility of series production, etc.

presented in practice and presented to the general public.

LCT ONE was officially opened on November 19, 2012. Since its completion, the prototype has primarily been used as an office. The LifeCycle Hub (LC HUB) is a separate exhibition area on the ground floor and first floor, in which innovative, sustainable projects and companies are presented.

The construction of the prototype LCT ONE was supported by the Austrian Research Promotion Agency (FFG), the Federal Ministry for Transport, Innovation and Technology (bmvit) and the state of Vorarlberg.

construction

The wooden hybrid house is largely made of wood. It differs from other multi-storey wooden buildings in that the load-bearing elements of the house, the modular wooden structures, are not planked (see e.g. H8 (Holzhaus Bad Aibling) ). The open, unclad wood structure used in the LCT ONE saves resources and is at the same time an important part of the fire protection concept and can also be part of the architectural design.

Wood was used in the LCT ONE as a wood hybrid building where it makes technical or architectural sense. The aim of the wood hybrid construction method and the prototype LCT ONE built for this purpose was to use the amount of wood meaningfully in the sense of a sustainable construction method, with which an optimum of resource efficiency can be achieved in connection with the corresponding and desired functionality a practical example. Hence the name comes LifeCycle (German: life cycle ). The energy standard of an LCT can correspond to plus energy , passive house or low energy technology , depending on the version .

Technical equipment of the LCT ONE

LCT ONE is approx. 24 meters long, approx. 13 meters wide and approx. 27 meters high. There is a total floor area of ​​around 2,500 m² on 8 floors.

Photovoltaics

On the roof of the LCT ONE, a south-facing, 20 ° elevated photovoltaic system with a peak output of 7.68 kWp was built (implemented with polycrystalline modules, full feed).

Heating and cooling needs

The heating and cooling requirements of the LCT ONE are provided via hydraulic lines in the ceiling of the respective floor and can be called up individually for each room if required. Supplements and optimizes the heating and cooling requirements is through a controlled ventilation system with heat recovery / cold in a heat / cooling exchanger . In addition, there is the possibility of supplying fresh air via windows / doors in every room, whereby the supply of heat or cold is automatically switched off when the windows / doors are opened.

The heat requirement is obtained from the LCT ONE via a wood chip heating system and a district heating network from “Rhomberg's factory”.

light

The rooms of the LCT ONE are provided with large natural light inlet openings (windows and doors in the facade), whereby additional care was taken that the incidence of light was not unnecessarily reduced by other structural measures.

The respective rooms can also be individually and flexibly adapted to their own needs by the users with lighting fixtures .

Every room and the entire house is regulated and adjusted by an intelligent lighting control from Zumtobel , with manual intervention options as required. Primarily, the control of the current brightness and weather situation in the outdoor area follows.

Shading

The shading of the individual rooms is also regulated via the lighting control , in order to avoid unnecessary heating of the rooms by solar radiation.

LCT TWO

Illwerke Zentrum Montafon (IZM), model view
Illwerke Zentrum Montafon, LifeCycle Tower Two, under construction
A quarter of the LCT TWO protrudes into the reservoir of the Rodundwerk

The second LCT in system prefabricated construction was erected between March 2012 (groundbreaking on March 12, 2012) and the beginning of October 2013. This is the new hydropower competence center of illwerke vkw AG in Vandans , Montafon ( illwerke vkw zentrum montafon - izm). This office and administration building was built as a green building in passive house standard . It is a reinforced concrete construction in the basement and ground floor as well as in the access core, wood-hybrid construction method in the other upper floors.

Many of the building's modules in the LCT system were also prefabricated here at the factory and assembled at the construction site in Vandans. 270 workstations are installed on five floors (+1 basement) with a gross floor area of ​​10,400 m² and a length of 120 m. This means that this LCT Two is currently one of the largest and most sustainable wood hybrid buildings in the world. A little over 30 million euros were invested.

Heating and cooling needs

The primary energy consumption (PEV) of the LCT Two is below 190.3 kWh / m 2 / year (final energy requirement: 72.6 kWh / m 2 / year; CO 2 : 30.3 kg / m 2 / year). The heating requirement (HWB) is 9.7 kWh / m² / year and is completely covered by the waste heat system of Rodundwerk I (via a heat pump system , 260 kW water-water, the cooling requirement is also drawn from this power plant, 25.7 kWh / m 2 / year).

Awards

LCT Two received the German Seal of Quality for Sustainable Building in Gold ( ÖGNI ) and the BMFLFUW 2014 State Prize for Architecture and Sustainability.

LCT NEXT

According to the current state of knowledge, a LifeCycle Tower in the wood-hybrid construction used here in the LCT ONE prototype should be able to be built up to a height of 100 meters and with up to 30 floors.

LCT NEXT is the designation for planning buildings with prefabricated wood hybrid elements, with NEXT representing a placeholder. This should make it possible in the future to industrialize construction planning and preparation. As a result, wooden buildings up to 100 meters high should be able to be planned, produced and assembled or assembled as standard within a very short time. In these buildings u. a. all electrical components that have a significant function and task are given an IP address. This should make it possible to duplicate and simulate the functions (from 3D building models to 7D facility management information) in the digital twin.

Life cycle management design

The Danube University Krems offers a course in "Life Cycle Management Building". In this, the professional management required for future-oriented building projects is taught as the course content, combined with "networked technical expertise, social competence and well-founded management skills". The course with 20 modules conveys essential questions "which a project manager for construction projects will have to answer in the future if he wants to successfully develop and implement sustainable construction projects." The course ends with a Master of Science (MSc).

The Institute for Industrial Building Production (ifib) was renamed "Building Lifecycle Management" (BLM) and deals in research and teaching with the conception, development and application of computer-aided methods and tools for the implementation of an integrated Building Lifecycle Management.

Cree GmbH

The Cree GmbH ( C reative R esource & E nergy E fficiency) is a company founded in December 2010 based construction company Bregenz , Austria . The company consists of three shareholders, the Rhomberg Group , Signa Holding GmbH and the RIMO private foundation .

The know-how of Cree GmbH in relation to this construction method is licensed.

Awards for the idea and the project

Publications on the LifeCycle Tower

literature

  • Volker Koch, Life Cycle Optimized System Solutions for Densified Housing with Massive Wood Technology in 10th International Conference on Computing in Civil and Building Engineering, Weimar, Germany, June 2004. Online .
  • Volker Koch, Virtual Building Lifecycle - Giving Architects Access to the Future of Buildings by Visualizing Lifecycle Data in the 8th International Conference on Computing in Civil and Building Engineering, Stanford, USA, August 2000. Online .
  • Niklaus Kohler, Wei Yang: Long-term management of building stocks.
  • Marc Wilhelm Lennartz, Susanne Jacob-Freitag, New Building with Wood; Types and constructions , Basel 2016, Birkhäuser, ISBN 978-3-0356-0457-3
  • Ivana Milijanovic, Innovations in prefabricated high-rise timber constructions , Vienna 2015, diploma thesis, Vienna University of Technology (in English)

Web links

Commons : LCT ONE  - collection of images, videos and audio files

Individual evidence

  1. ↑ Färbergasse 17b, 6850 Dornbirn.
  2. ↑ a b Sascha Schmidt: LCT ONE: The world's first wood hybrid high-rise opens in Dornbirn , website: vol.at from November 7, 2011.
  3. ↑ a b c LCT ONE - LifeCycle Tower, Dornbirn , website HK Architects.
  4. ↑ Objective of the management approach Life Cycle Management Construction - Course at Danube University Krems on Life Cycle Management construction. This is also the case with the BLM in Karlsruhe: BLM website .
  5. ↑ See also: Entry in the Phorio architecture database
  6. ↑ LifeCycle Tower ONE in Dornbirn, information brochure from Zumtobel Lighting GmbH, Dornbirn 02/2013.
  7. ↑ Federal Ministry of Agriculture, Forestry, Environment and Water Management (BMFLFUW) as publisher, State Prize Architecture and Sustainability - Magazine , p. 33 (2014).
  8. ↑ Illwerke Magazin, Issue 27, October 2013, p. 8.
  9. ↑ Illwerke Magazin, Issue 27, October 2013, p. 7, and the Federal Ministry for Agriculture, Forestry, Environment and Water Management (BMFLFUW) as publisher, State Prize Architecture and Sustainability - Magazin , p. 33 (2014).
  10. ↑ Federal Ministry for Agriculture, Forestry, Environment and Water Management (BMFLFUW) as publisher, State Prize Architecture and Sustainability - Magazine , p. 33.
  11. ↑ Soft shell, hard core. In: ORF , November 20, 2012. - Photo gallery of the LifeCycle Tower (LCT One) in Dornbirn, further links.
  12. ↑ a b Cree is now licensing its Vorarlberg know-how - the next innovation is already on vol.at, September 8, 2016.
  13. ↑ Quotations according to www.donau-uni.ac.at .
  14. ↑ BLM website
  15. ↑ private foundation under Austrian law of Vorarlberg entrepreneur Ri chard Mo rscher.
  16. ↑ Kyocera Environmental Prize Winner 2014 .
  17. ^ Long-term management of building stocks , website: tandfonline.com.

Coordinates: 47 ° 25 '23.4 "  N , 9 ° 44' 17.4"  E