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Efficient production of high-rise buildings
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.
2007 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

Production of one family houses has over time developed successfully in Sweden and producers have managed to reduce the production costs and industrialize the production process. The development has however not been that successful when it comes to high-rise buildings. There are many attempts made, but no one has really managed to create a product that can persuade the market. The systems used are not flexible and cannot cope very well with variations in the design. The aim of this work has been to develop and evaluate the idea of prefabricated high-rise buildings within the outlines of a scientific research. By understanding the problems that the building sector experiences today it will be possible to identify the solutions that are needed tomorrow. The main objective has been to develop new technologies and system concepts for buildings. Concepts that are highly flexible and respect the ambitions of the architect and technologies that will facilitate a more effective building process and address relevant key issues in building physics and building construction for cost reduction and a sustainable performance. Aside from the actual production cost it is also important to consider the lifecycle cost of the building. The production cost represents only a fraction of the total lifecycle cost of a building.

A background research has been made to understand the building process and its problems, this information served for the formulation of a building concept. The work has been interdisciplinary and has not been limited to only one single point of view. Because of the nature of the method the work has resulted in new construction techniques. The initial idea of the prefabricated high-rise building has during the course of this work developed to a complete building concept. The Symphony Concept as it is called is about industrial prefabricated buildings that are assembled on site and is based on the idea of large and flat building elements with a very high degree of prefabrication. To evaluate the concept technology detailed researches have been made in different fields. The detailed researches made in this thesis regards the strength of sheet metal studs embedded in stiff insulation blocks, hazards connected with plastering on light weight constructions and fire protection of light weight constructions. The experiences from these researches are then applied in the building concept. Theory was put to practice with the construction of an experimental building called the Research Tower. The purpose of this pilot-project was primary to evaluate the construction technology and secondary to evaluate the properties of the building concept.

To be able to find methods for production of sustainable, cost-effective and attractive high-rise buildings it is necessary to have a holistic view. A holistic concept that takes into consideration the whole building process will yield time- and cost-efficient production while it will also make it possible to achieve better quality. The detail researches shows that embedding of the sheet metal profiles in the rigid insulation blocks will increase the buckling load of the stud and that the thickness of the plastering layer and the material properties of its substrate will affect the strains in the plastering layer and the moisture stored in it. Regarding the fire protection it could be stated that the Symphony outer wall construction protected with a double layer of gypsum board can maintain segregation of the fire up to 60 min as long as the gypsum boards do not crumble. In the production of the pilot projected it could be stated that the fact that the whole building was designed by one homogenous team with information about all details, made it possible to foresee many problems. The production of elements even in the temporary experimental production facility proved to be fast and economic, even with untrained labour force and the elements could be prefabricated to a very high level with facades that are plastered before assembly.

Place, publisher, year, edition, pages
Stockholm: KTH , 2007. , xii, 51 p.
Series
Meddelande. Institutionen för byggvetenskap, ISSN 1651-5563 ; 199
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-4285ISBN: 978-91-7178-576-3 (print)OAI: oai:DiVA.org:kth-4285DiVA: diva2:11633
Presentation
2007-02-27, Fys.lab., KTH, Brinellvägen 34, Stockholm, 09:00
Opponent
Supervisors
Note
QC 20101108Available from: 2007-02-27 Created: 2007-02-27 Last updated: 2010-11-08Bibliographically approved
List of papers
1. Symphony: a flexible system for sustainable building
Open this publication in new window or tab >>Symphony: a flexible system for sustainable building
2003 (English)In: Dense Living Urban Structures: Proceedings of The International conference on Open Building in Hong Kong, 2003Conference paper, Published paper (Refereed)
Abstract [en]

Buildings are not meant to be static objects in time; they should be allowed to evolve together with the city. While three-dimensional flexibility is of uttermost importance it is equally important that movement is allowed along the time axis. Future changes should be incorporated in the buildings erected today. This article is to present Symphony, a concept that makes way for:

  • optimisation of the construction technology to minimize production time, material waste and global environmental impact as well as significantly improving the total economy.
  • buildings with components and material combinations that can literally be dismounted and reused or recycled.
  • an internal space that is possible to reconstruct for future requirements since the construction system makes the plan highly flexible and variable.

The use of multi-floor vertical light weight building elements offers fast assembly and dismounting. Furthermore the façade elements are completely finished on the outside and finished till gypsum board on the inside including windows and all the vertical installations. With time, they can easily be replaced by a glass façade, for example to hold offices. The concept is highly focused on cost effectiveness since the right price will facilitate the sustainable way of building.

Keyword
Multi-family houses, integrated construction systems, sustainable buildings, costeffective buildings, lightweight constructions
National Category
Building Technologies
Identifiers
urn:nbn:se:kth:diva-6813 (URN)
Note
QC 20100906Available from: 2007-02-27 Created: 2007-02-27 Last updated: 2010-09-06Bibliographically approved
2. Temperature and moisture modelling of rendering on light weight constructions
Open this publication in new window or tab >>Temperature and moisture modelling of rendering on light weight constructions
2005 (English)In: Proceedings of the 7th Nordic Symposium on Building Physics in the Nordic countries, 2005Conference paper, Published paper (Refereed)
Abstract [en]

Rendered light weight constructions have a low thermal inertia witch makes them especially sensitive towards changes in temperature. The lack of thermal inertia causes the construction to give a much quicker response to ambient temperature. Calcium cement rendering is a commonly used material for weather protection but will expand and shrink with temperature and moisture changes. When the changes occur rapidly the fast movement of the material can cause it to crack and lose its moisture-proof characteristics. To study the drying out of the rendering, the phenomena was simulated using numerical calculations. A comparative calculation model with coupled heat and moisture transfer was created to evaluate the effects of mass transport on the heat distribution. The construction studied is a so called Symphony outer wall element which is a light weight construction. The rendering layer is assumed to have been saturated after a rain period. The drying out of the construction during a five day period is then studied. The calculations performed with the first model show large variations in temperature and moisture content which may cause the rendering to crack. The results are then compared with the second calculation model with coupled mass and heat transfer calculations which takes into account the thermal inertia of the moisture and its effects on the temperature variations. The purpose of this is to try to evaluate the significance of mass transfer in temperature simulations.

Keyword
rendered light weight constructions, mass and heat transfer, Capillary suction
National Category
Building Technologies
Identifiers
urn:nbn:se:kth:diva-6814 (URN)
Note
QC 20100906Available from: 2007-02-27 Created: 2007-02-27 Last updated: 2010-09-06Bibliographically approved
3. Symphony: industrial production of MULTI-STOREY buildings: report from the research tower project
Open this publication in new window or tab >>Symphony: industrial production of MULTI-STOREY buildings: report from the research tower project
2006 (English)In: Proceedings of the Joint International Conference on Computing and Decision Making in Civil and Building Engineering, 2006Conference paper, Published paper (Refereed)
Keyword
industrial construction, prefabrication, multistorey buildings, integrated design, optimized building process
National Category
Building Technologies
Identifiers
urn:nbn:se:kth:diva-6815 (URN)
Note
QC 20100906Available from: 2007-02-27 Created: 2007-02-27 Last updated: 2010-09-06Bibliographically approved
4. Temperature analysis of light weight integrated construcitons exposed to fire
Open this publication in new window or tab >>Temperature analysis of light weight integrated construcitons exposed to fire
(English)Manuscript (Other academic)
National Category
Building Technologies
Identifiers
urn:nbn:se:kth:diva-6816 (URN)
Note
QC 20101108Available from: 2007-02-27 Created: 2007-02-27 Last updated: 2010-11-08Bibliographically approved
5. Local buckling of thin plates in elastic medium
Open this publication in new window or tab >>Local buckling of thin plates in elastic medium
(English)Manuscript (Other academic)
National Category
Building Technologies
Identifiers
urn:nbn:se:kth:diva-6817 (URN)
Note
QC 20101108Available from: 2007-02-27 Created: 2007-02-27 Last updated: 2010-11-08Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Output format
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