Sökning: "Anchor bolt"

Hittade 3 avhandlingar innehållade orden Anchor bolt.

  1. 1. Anchorage in Concrete Structures : Numerical and Experimental Evaluations of Load-Carrying Capacity of Cast-in-Place Headed Anchors and Post-Installed Adhesive Anchors

    Författare :Rasoul Nilforoush; Lennart Elfgren; Norbert Randl; Karin Lundgren; Manouchehr Hassanzadeh; Richard Malm; Lars-Erik Persson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Headed anchor; Anchor bolt; Adhesive anchor; Concrete cone breakout; Concrete splitting; Pullout loading; Size effect; Member thickness; Anchor head size; Orthogonal surface reinforcement; Concrete Strength; High-strength concrete; Cracked concrete; Steel fiber-reinforced concrete; Sustained loading; Creep behavior; Structural Engineering; Konstruktionsteknik;

    Sammanfattning : Various anchorage systems including both cast-in-place and post-installed anchors have been developed for fastening both non-structural and structural components to concrete structures. The need for increased flexibility in the design of new structures and strengthening of existing concrete structures has led to increased use of various metallic anchors in practice. LÄS MER

  3. 2. Fracture mechanics analysis of concrete structures

    Författare :Ulf Ohlsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Sammanfattning : This thesis presents results from numerical and analytical analyses of concrete structures as well as results from laboratory tests. Numerical methods based on the finite element method and fracture mechanics are used. The thesis comprises five papers and a general introductory part. LÄS MER

  4. 3. Vår tids ledare : en studie av den svenska dagspressens politiska opinionsbildning

    Författare :Lars Nord; Bengt Johansson; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; editorial; party press; democracy; political communication; independent newspapers; party loyalty; election campaigns; daily press; content analysis; Swedish press; ideology; market-driven journalism; newsjournalism; public journalism; Journalism; journalistik; Media and communication studies;

    Sammanfattning : The objective of this dissertation is to audit political opinion making by the Swedish press on the editorial pages by analyzing editorial production conditions and content and the role of the editorial in local democracy. Three main questions are of central interest in this effort: By whom are editorials written and what guides the work of the editorial writers? What is written in editorials? Who reads editorials and what role do editorials play in local democracy? These questions may be said to be linked to a journalistic scholarly ambition to illuminate a trend within the journalistic genre where in the relationship between the press and the party no longer seems to be playing the same role for editorial writers and editorials. LÄS MER