Sökning: "Avdelningen för Konstruktionsteknik"

Visar resultat 16 - 20 av 36 avhandlingar innehållade orden Avdelningen för Konstruktionsteknik.

  1. 16. The human factor in structural engineering: A source of uncertainty and reduced structural safety

    Författare :Martin Fröderberg; Avdelningen för Konstruktionsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural engineering Uncertainty Human error;

    Sammanfattning : It is known that human errors are the cause of most structural failures. Extreme loads or material deficiencies are normally of secondary importance. This Project has studied the human factor in the design phase; how subjective decisions, individual knowledge and the use of advance tools and codes affect structural safety and structural design. LÄS MER

  3. 17. Design for Serviceability - A probabilistic approach

    Författare :Daniel Honfi; Avdelningen för Konstruktionsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; design codes; long-term deflections; structural reliability; serviceability;

    Sammanfattning : In many design situations the acceptable performance of structures is defined by serviceability requirements. To estimate the probability of serviceability failure three main design aspects should be considered: (1) the relevant exposures, (2) the structural response and (3) the performance criteria. LÄS MER

  4. 18. Moisture Induced Stress Perpendicular to Grain in Timber Structures

    Författare :Martin Häglund; Avdelningen för Konstruktionsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wood.; timber; perpendicular to grain; load combination factor; tensile stress; mechano-sorption; Moisture induced eigen-stress; varying moisture content;

    Sammanfattning : Timber structures and wooden element are in general affected by moisture and moisture variation in different ways. Their hygroscopic properties result in adsorption of water when wetted and in desorption when dried. LÄS MER

  5. 19. Moisture Induced Stresses in Timber Structures

    Författare :Johan Jönsson; Avdelningen för Konstruktionsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknik; load carrying capacity; Technological sciences; reinforcement; short-term strength perpendicular to grain; internal stresses; glulam; contact free measuring technique moisture gradients;

    Sammanfattning : Wood is a hygroscopic material; always striving to reach equilibrium with the surrounding air, and consequently the moisture content is different in different climate conditions. The strength of wood is directly dependent on the moisture content, lower moisture content leads to increasing strength. LÄS MER

  7. 20. Resistance of Clay Brick Masonry Façades to Wind-Driven Rain : Repointing of Eroded Mortar Joints

    Författare :Mohammad Kahangi; Avdelningen för Konstruktionsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; clay brick masonry façade; wind-driven rain; water absorption; water penetration; damp patches;

    Sammanfattning : Clay brick masonry façades are commonly used due to their high-performance durability. However, exposure to climate agents such as wind-driven rain (WDR), freeze-thaw cycles, and wind abrasion cause deterioration of masonry façades over time. LÄS MER