Search for dissertations about: "Byggvetenskap"

Showing result 1 - 5 of 144 swedish dissertations containing the word Byggvetenskap.

  1. 1. Developments in Ground Heat Storage Modeling

    Author : Alberto Lazzarotto; Björk Folke; Michel Bernier; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Borehole fields; g-functions; network; inclined; integrated design; Energiteknik; Energy Technology; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : Ground heat storage systems can play an important role for the reduction of green house gases emissions by increasing the exploitation of renewable energy sources and “waste heat” with a consequent diminution of the use of fossil fuels.A ground heat storage consists in an array of vertical boreholes placed in such a way that promotes the mutual thermal interaction between the ground heat exchangers creating the necessary conditions required to effectively store and retrieve heat. READ MORE

  2. 2. Integrated decision making in civil engineering, based on multi-criteria assessment and buildings’ certification

    Author : Milena Medineckiene; Folke Björk; Eridijus Rytas Vaidogas; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Construction; renovation; MCDM; certification; sustainability; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : Significant investments are being made in the construction sector in order to raise the quality of the buildings and make them more sustainable and energy-efficient. The key aspect of these investments should be the purposeful optimization of the possible renovation and construction measures. READ MORE

  3. 3. Analysis of underground concrete pipelines subjected to seismic high-frequency loads

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Roghayeh Abbasiverki; Anders Ansell; Jan Laue; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Earthquake; High-frequency; Underground; Pipelines; Reinforced concrete; Inclined bedrock; Jordbävning; Högfrekvent; Underjordisk; Rörledningar pipelines ; Armerad betong; Lutande berggrund; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : Buried pipelines are tubular structures that are used for transportation of important liquid materials and gas in order to provide safety for human life. During an earthquake, imposed loads from soil deformations on concrete pipelines may cause severe damages, possibly causing disturbance in vital systems, such as cooling of nuclear power facilities. READ MORE

  4. 4. Efficient Winter Road Maintenance : A Study of Technical and Contractual Issues

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Adel Abdi; Hans Lind; Björn Birgisson; Lars Silver; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; climate; road climate and weather; road surface roughness; road friction; winter tyre; winter maintenance tools; RWIS; weather station; winter maintenance; contract type; road maintenance contract; winter maintenance contract; partnering; strategic alliance; public procurement; tender; incentives; bundling services; payment mechanism; remuneration models; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : Since ancient times, roads have tied people and cultures together. Roads have been createdwith the aim of facilitating trade and cultural exchange among different regions in the world. READ MORE

  5. 5. Mechanistic-Empirical Modelling of Flexible Pavement Performance Verifications Using APT Measurements

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Abubeker Worake Ahmed; Sigurdur Erlingsson; Hervè Di Benedetto; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flexible Pavement; Pavement Performance Models; Multilayer Elastic Theory; Linear Viscoelasticity; Rutting; Accelerated Pavement Testing; Heavy Vehicle Simulator; Transportvetenskap; Transport Science; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : Mechanistic-Empirical  (M-E)  pavement  design  procedures  are  composed  of  a  reliable  response model to estimate the state of stress in the pavement and distress models in order to predict the different types of pavement distresses due to the prevailing traffic and environmental conditions. One of the main objectives of this study was to develop a response model based on multilayer elastic  theory   (MLET)  with  improved  computational  performance  by   optimizing  the   time consuming parts of the MLET processes. READ MORE