Search for dissertations about: "civil structure"

Showing result 1 - 5 of 343 swedish dissertations containing the words civil structure.

  1. 1. Footbridge Dynamics Human-Structure Interaction

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Emma Zäll; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dynamics; vibration; footbridge; pedestrian bridge; human-structure interaction; runner; running loads; simplified models; Dynamik; vibration; gångbro; människa-bro-interaktion; löpare; löparlaster; förenklade modeller; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : For aesthetic reasons and due to an increased demand for cost-effective and environmentally friendly civil engineering structures, there is a trend in designing light and slender structures. Consequently, many modern footbridges are susceptible to excessive vibrations caused by human-induced loads. READ MORE

  2. 2. Medieval Timber Roof Structures: Conceptual methods for investigation and evaluation of structural behaviour, with the horizontal thrust problem as an application

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Carl Thelin; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; conservation; thrust; medieval churches; preservation; structural behaviour; base of the roof; roof truss; roof structure; horizontal support; FEM;

    Abstract : The medieval timber roof structures hidden in the attics of many Swedish churches represent the advanced building technology of the time. They are an important cultural heritage, their being bearers of information from a period regarding which other direct sources of information are scarce. READ MORE

  3. 3. Performance model for unbound grnular materials pavements

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Tatek Fekadu Yideti; KTH.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; unbound granular materials; aggregate; packing theory; gradation; primary structure; secundary structure; permanent deformation; resilient modulus;

    Abstract : Recently, there has been growing interest on the behaviour of unbound granular material in road base layers. Researchers have studied that the design of a new pavement and prediction of service life need proper characterization of unbound granular materials, which is one of the requirements for a new mechanistic design method in flexible pavement. READ MORE

  4. 4. Technical and contractual aspects in winter highway and railway operation and maintenance : a survey of current technical systems and contract forms in Sweden

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Adel Hirmand Abdi; KTH.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; climatology; macroclimate; microclimate; pavement structure; pavement design; roughness; IRI; friction; friction measurement; friction devices; IFI; road grip; winter tyres; studded and non-studded tyres; winter maintenance; winter operation; road climate; RWISS; MDSS; contract theory; contract; contract types; construction contract; maintenance contract; procurement; payment forms; remuneration forms; partnering; TECHNOLOGY Civil engineering and architecture Other civil engineering and architecture; TEKNIKVETENSKAP Samhällsbyggnadsteknik och arkitektur Övrig samhällsbyggnadsteknik och arkitektur;

    Abstract : .... READ MORE

  5. 5. Structural Health Monitoring of Bridges Model-free damage detection method using Machine Learning

    University dissertation from KTH Royal Institute of Technology

    Author : Cláudia Neves; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Health Monitoring; Machine Learning; Damage detection; Model-free based method; Artificial Neural Networks; Gaussian Process; Cost optimization; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : This is probably the most appropriate time for the development of robust and reliable structural damage detection systems as aging civil engineering structures, such as bridges, are being used past their life expectancy and beyond their original design loads. Often, when a significant damage to the structure is discovered, the deterioration has already progressed far and required repair is substantial. READ MORE