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Kostnadsjämförelse mellan betong och korslimmat träsystem

Magnusson, Julia LU and Jönsson Bremberg, Joel LU (2022) VBEM01 20221
Construction Management
Abstract
The purpose of this master´s thesis is to identify costs, time perspective and other differences between the building methods for apartment building made of CLT and concrete frameworks. This master´s thesis also aims to increase the general knowledge of apartment buildings made of CLT-frameworks costs and to investigate if CLT-frameworks can be a cost-efficient building method.

This master´s thesis consists of a qualitative study. The three methods used in this master´s thesis is literature, case and interview study. The literature study clarifies available information on the subject. The case study compares cost calculations of CLT and concrete apartment buildings. The interview study investigates the building industry’s knowledge and... (More)
The purpose of this master´s thesis is to identify costs, time perspective and other differences between the building methods for apartment building made of CLT and concrete frameworks. This master´s thesis also aims to increase the general knowledge of apartment buildings made of CLT-frameworks costs and to investigate if CLT-frameworks can be a cost-efficient building method.

This master´s thesis consists of a qualitative study. The three methods used in this master´s thesis is literature, case and interview study. The literature study clarifies available information on the subject. The case study compares cost calculations of CLT and concrete apartment buildings. The interview study investigates the building industry’s knowledge and experience of CLT-projects. The results from the studies have been analysed and discussed to answer the problem.

The conclusion of the master thesis is that concrete apartment buildings is more cost-efficient if the lowest price per square meter is requested. If the lowest climate impacts are requested CLT-frameworks can be the most cost-efficient building method. The CLT-method has the potential to develop into a more cost-efficient building method than concrete, based on price. However more research and experience is required on CLT apartment buildings. The differences in building methods are how the functional requirements are fulfilled, how much framework completion is required and how much transport of the frameworks is needed. The difference in time is mainly that the CLT-construction can be constructed quickly, however the frame completion is more complex. The greatest costs for both alternatives are the framework, the overhead costs, and the installations. The largest difference in cost is framework completion which is twice as larger for the CLT apartment building as it is for concrete. Other conclusions from this master´s thesis are about design, work environment and material management. There are difficulties in converting a project from concrete to CLT without losing the benefits of the CLT-method and it requires major design and planning. The work environment is better in CLT-projects because the material is easier to handle. Finally, the CLT-method require more material management because of its more sensitive qualifications. (Less)
Abstract (Swedish)
Syftet med studien är att identifiera kostnader, tidsaspekter och skillnader mellan byggnadsmetoderna för flerbostadshus i betong- eller KL-trästomme. Studien syftar även till att utveckla kunskaperna kring flerbostadshus i KL-träs kostnader och att utreda ifall KL-trä kan bli en kostnadseffektiv byggmetod.

Examensarbetet utgör en kvalitativ studie. De tre metoderna som används i examensarbetet är litteratur-, fall- och intervjustudie. Litteraturstudien kartlägger befintliga fakta inom området. Fallstudien jämför kostnadskalkyler över flerbostadshus i betong- och KL-trä. Intervjustudien utreder byggbranschens kunskaper och erfarenheter av KL- träprojekt. Resultatet från studierna har analyserats och diskuterats för att besvara... (More)
Syftet med studien är att identifiera kostnader, tidsaspekter och skillnader mellan byggnadsmetoderna för flerbostadshus i betong- eller KL-trästomme. Studien syftar även till att utveckla kunskaperna kring flerbostadshus i KL-träs kostnader och att utreda ifall KL-trä kan bli en kostnadseffektiv byggmetod.

Examensarbetet utgör en kvalitativ studie. De tre metoderna som används i examensarbetet är litteratur-, fall- och intervjustudie. Litteraturstudien kartlägger befintliga fakta inom området. Fallstudien jämför kostnadskalkyler över flerbostadshus i betong- och KL-trä. Intervjustudien utreder byggbranschens kunskaper och erfarenheter av KL- träprojekt. Resultatet från studierna har analyserats och diskuterats för att besvara problemformuleringen.

Slutsatsen av studien är att flerbostadshus i betong är mer kostnadseffektiva ifall det lägsta priset per kvadratmeter efterfrågas. Ifall lägsta klimatavtryck efterfrågas kan KL-trästommar vara det mest kostnadseffektiva. KL-trämetoden har potential att utvecklas till en mer kostnadseffektiv metod än betong baserat på pris. Dock krävs det mer forskning och erfarenheter av flerbostadshus i KL-trä. Skillnaderna mellan byggnadsmetoderna är hur funktionskraven uppfylls, hur mycket stomkomplettering som behövs och mängden transporter. De största skillnaderna i tid är att KL-trästommen har snabbare stomresningstid, men stomkompletteringen är mer omfattande. De största kostnaderna för båda alternativen är stommen, omkostnaderna och installationer. Den största skillnaden i kostnad mellan alternativen är stomkompletteringen där kompletteringen för flerbostadshus i KL-trä kostar dubbelt så mycket som för betong. Andra slutsatser från studien handlar om projektering, arbetsmiljö och materialhantering. Det finns svårigheter att konvertera ett betongprojekt till KL-trä utan att gå miste om KL-trämetodens fördelar och det kräver omfattande projektering och planering. Arbetsmiljön är bättre för KL-trä eftersom materialet är mer lätthanterat. Slutligen kräver KL-trämetoden mer omfattande materialhantering på grund av materialets egenskaper. (Less)
Please use this url to cite or link to this publication:
author
Magnusson, Julia LU and Jönsson Bremberg, Joel LU
supervisor
organization
alternative title
Cost Comparison Between Concrete and Cross Laminated Timber System
course
VBEM01 20221
year
type
H3 - Professional qualifications (4 Years - )
subject
keywords
KL-trä, betong, stommaterial, byggkostnader, tidsperspektiv, byggnadsmetoder, kostnadseffektivitet, CLT, concrete, framework material, building costs, time perspective, building method, cost efficiencies
report number
22/5663
other publication id
ISRN LUTVDG/TVBP-22/5663-SE
language
Swedish
additional info
Handledare: Stefan Olander
Examinator: Anne Landin
id
9094974
date added to LUP
2022-08-23 15:04:32
date last changed
2022-08-23 15:04:32
@misc{9094974,
  abstract     = {{The purpose of this master´s thesis is to identify costs, time perspective and other differences between the building methods for apartment building made of CLT and concrete frameworks. This master´s thesis also aims to increase the general knowledge of apartment buildings made of CLT-frameworks costs and to investigate if CLT-frameworks can be a cost-efficient building method.

This master´s thesis consists of a qualitative study. The three methods used in this master´s thesis is literature, case and interview study. The literature study clarifies available information on the subject. The case study compares cost calculations of CLT and concrete apartment buildings. The interview study investigates the building industry’s knowledge and experience of CLT-projects. The results from the studies have been analysed and discussed to answer the problem. 

The conclusion of the master thesis is that concrete apartment buildings is more cost-efficient if the lowest price per square meter is requested. If the lowest climate impacts are requested CLT-frameworks can be the most cost-efficient building method. The CLT-method has the potential to develop into a more cost-efficient building method than concrete, based on price. However more research and experience is required on CLT apartment buildings. The differences in building methods are how the functional requirements are fulfilled, how much framework completion is required and how much transport of the frameworks is needed. The difference in time is mainly that the CLT-construction can be constructed quickly, however the frame completion is more complex. The greatest costs for both alternatives are the framework, the overhead costs, and the installations. The largest difference in cost is framework completion which is twice as larger for the CLT apartment building as it is for concrete. Other conclusions from this master´s thesis are about design, work environment and material management. There are difficulties in converting a project from concrete to CLT without losing the benefits of the CLT-method and it requires major design and planning. The work environment is better in CLT-projects because the material is easier to handle. Finally, the CLT-method require more material management because of its more sensitive qualifications.}},
  author       = {{Magnusson, Julia and Jönsson Bremberg, Joel}},
  language     = {{swe}},
  note         = {{Student Paper}},
  title        = {{Kostnadsjämförelse mellan betong och korslimmat träsystem}},
  year         = {{2022}},
}