Sökning: "concrete crack"

Visar resultat 11 - 15 av 101 uppsatser innehållade orden concrete crack.

  1. 11. Prestanda hos samverkanspelare : En kvantitativ studie om samverkanspelare är ett bättre val i framtidens byggindustri

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Tillämpad mekanik

    Författare :Martin Nilsson; Anders Sundeman; [2022]
    Nyckelord :Samverkanspelare; LCA; stål; betong; hållbarhet;

    Sammanfattning : Background: In a world where awareness in climate change is growing, humans need tofind new more sustainable ways towards prosperity and development. Theconstruction industry today is one of the industries where waste iscreated while pace of innovation is low compared to other industries. LÄS MER

  3. 12. Numerical method to investigate and assess the capacity of a damaged concrete structure : Using image analysis and advanced concrete modeling

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Zakariya Benosmane; [2022]
    Nyckelord :Damaged Concrete Structure; Extended Finite Element Method XFEM ; Concrete Dam- aged Plasticity CDP ; Photogrammetry; Crack Detection Methods.;

    Sammanfattning : Concrete has for decades been one of the main materials used to construct important structuressuch as dams and bridges. However, after years of service, the concrete structuresstart deteriorating and signs of damages start showing on the structure. LÄS MER

  4. 13. Automatic Crack Detection in Sand Molds Using Image Processing and Convolutional Neural Networks

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Tim Andersson; [2022]
    Nyckelord :automatic crack detection; convolutional neural network; image processing; sand casting;

    Sammanfattning : Sand casting is used to manufacture large metal workpieces. The processing is executed by pouring molten metal into a sand mold. During the process, the mold is subjected to mechanical and thermal stress. It is of economic interest to inspect the molds for defects that can affect casting results, in the worst case leading to discarded products. LÄS MER

  5. 14. Influence of load distribution on trough bridges

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Jacob Gustafsson; [2021]
    Nyckelord :Bridge; Trough bridge; Concrete; Load distribution; Ballast;

    Sammanfattning : There are approximately 4000 railway bridges in Sweden and a common construction type is the short span concrete trough bridge. With the current standards the load distribution through ballast is assumed to be uniformly distributed with a distribution slope of 2:1 according to the Swedish Administration of Transport or 4:1 according to Eurocode 1. LÄS MER

  7. 15. Assessing the safety of cracked concrete dams

    Master-uppsats, KTH/Betongbyggnad

    Författare :Abdelsamad Mohamed Osman Fadul; [2021]
    Nyckelord :Buttress dams; Concrete; Global stability; Design criteria; RIDAS; Sliding; Overturning; Finite element analysis; Progressive failure analysis;

    Sammanfattning : AbstractThe overall safety of dams depend on several stipulations. One of them is global stability of the dam, which is addressed with approaches like that in (RIDAS, 2017) (the Swedish power companies’ guidelines for dam safety). When designing a new dam, two global failure modes; sliding and overturning should be considered according to RIDAS. LÄS MER