Sökning: "mohammad al emrani"

Hittade 5 avhandlingar innehållade orden mohammad al emrani.

  1. 1. Fatigue in Riveted Railway Bridges - A study of the fatigue performance of riveted stringers and stringer-to-floor-beam connections

    Författare :Mohammad Al-Emrani; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis is mainly concerned with two fatigue-related problems in riveted railway bridges. The fatigue life of riveted bridge girders is investigated using a series of fatigue tests performed on full-scale riveted stringers taken from an old riveted railway bridge. LÄS MER

  3. 2. Fatigue assessment of riveted bridges

    Författare :Tobias Larsson; Mohammad Al-Emrani; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Sammanfattning : The majority of the railways used today were built in the beginning of the 20th century. Most of the bridges constructed at that time are still in service. LÄS MER

  4. 3. Improving a bridge fatigue life prediction by monitoring

    Författare :John Leander; Raid Karoumi; Mohammad Al-Emrani; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur;

    Sammanfattning : For steel railway bridges, fatigue is the main reason for a limited service life. An initial prediction of the fatigue life is usually performed using loads and conservative assumptions stated in the governing standards. The result is used for decisions of further actions. LÄS MER

  5. 4. Upgrading concrete bridges : post-tensioning for higher loads

    Författare :Jonny Nilimaa; Mohammad Al-Emrani; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Concrete; Bridges; Upgrading; Strengthening; Shear; Field testing; Post-tensioning; Prestressing; Structural Engineering; Konstruktionsteknik;

    Sammanfattning : There are a great number of old structures around the world, some of which were designed for completely different purposes than in their current application. Swedish railway bridges were for example only designed for maximum axle loads of 200 kN in the beginning of the 20th century, while the highest axle loads of today are twice as high. LÄS MER

  7. 5. Innovative structural details using high strength steel for steel bridges

    Författare :Oskar Skoglund; John Leander; Raid Karoumi; Mohammad Al-Emrani; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High strength steel; fatigue; steel bridges; steel and concrete composite bridges; innovative steel details; Structural Engineering and Bridges; Bro- och stålbyggnad;

    Sammanfattning : The use of high strength steel has the potential to reduce the amount of steel used in bridge structures and thereby facilitate a more sustainable construction. The amount of steel and what steel grade that can be used in bridge structures and other cyclic loaded structures are often limited by a material degradation process called fatigue. LÄS MER