Search for dissertations about: "prestressed concrete"

Showing result 1 - 5 of 22 swedish dissertations containing the words prestressed concrete.

  1. 1. Concrete Bridges Improved Load Capacity

    University dissertation from Luleå tekniska universitet

    Author : Jonny Nilimaa; Luleå tekniska universitet.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Abstract : There are many beautiful old structures around the world, some of which were designed for completely different purposes than their current applications. For example, Swedish railway bridges were only designed to carry axle loads up to 200 kN in the beginning of the 20th century, while modern loads can be twice as high. READ MORE

  2. 2. Using prestressed steel fiber reinforced high performance concrete in the industrilization of bridge structures

    University dissertation from Institutionen för byggkonstruktion

    Author : Lutfi Ay; KTH.; [1999]
    Keywords : Prestressed concrete; Casting steel fiber reinforced concrete; Bridges Casting steel fiber reinforced concrete; Bridges;

    Abstract : .... READ MORE

  3. 3. Steel fibrous cement based composites: material and mechanical properties behavior in the anchorage zones of prestressed bridges

    University dissertation from Stockholm : Byggvetenskap

    Author : Lutfi Ay; KTH.; [2004]
    Keywords : process improvement of bridges; prestressed concrete; high performance concrete;

    Abstract : This PhD thesis is divided into two parts. Part one dealswith the development of the material and the mechanicalproperties of Steel Fibrous Cement Based Composites (SFCBC) forimproving bridge design and construction. It familiarizes thehydration mechanisms of the high performance concrete with thehelp of Powers´ and Jensen´s models. READ MORE

  4. 4. Shear and Torsion in Concrete Structures Non-linear Finte Element Analysis in Design and Assessment

    University dissertation from Stockholm : Byggvetenskap

    Author : Helén Broo; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; torsion; box-girder bridge; hollow core unit; hollow core floor; non-linear finite element analysis.; shear; prestressed concrete; Reinforced concrete;

    Abstract : For structural design and assessment of reinforced concrete members, non-linear finite element analysis has become an important tool. However, design and assessment of shear and torsion are still done with simplified analytical or empirical design methods. READ MORE

  5. 5. Assessment of Long-Term Losses in Prestressed Concrete Structures - Application for Nuclear Reactor Containments

    University dissertation from Stockholm : Byggvetenskap

    Author : Peter Lundqvist; Lunds universitet.; Lund University.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; KstrConcrete; Nuclear reactor containments; prestressed concrete; prestress losses; bonded tendons; creep; shrinkage; relaxation; prediction models; resonance frequency; acoustoelasticity.;

    Abstract : Most nuclear reactors, both in Sweden and worldwide, are enclosed by a prestressed concrete containment. The main purpose of the containment is to prevent any radioactive discharge to the environment in the event of a major internal accident. READ MORE