Sökning: "Building age"

Visar resultat 1 - 5 av 145 avhandlingar innehållade orden Building age.

  1. 1. A Sociological Approach to Indoor Environment in Dwellings : Risk factors for Sick Building Syndrome (SBS) and Discomfort

    Författare :Karin Engvall; Dan Norbäck; Eva Sandstedt; Göran Strid; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; Indoor environment; Questionnaire; Atopy; Building age; Indoor air quality; Sick building syndrome SBS ; Validation; Dwelling; Energy conservation; Mechanical ventilation; Building dampness; Building reconstruction; Wood heating; Electric heating; Heat pump; Thermal Insulation; Sealing; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin; arbets- och miljömedicin; Occupational and Environmental Medicine;

    Sammanfattning : The principal aim was to study selected aspects of indoor environment in dwellings and their association with symptoms compatible with the sick building syndrome (SBS). A validated questionnaire was developed specifically for residential indoor investigations, using sociological principles and test procedures. LÄS MER

  3. 2. Towards Environmental Informatics for Building Stocks. A Conceptual Model for an Environmental Building Stock Information System for Sustainable Development - EBSIS

    Författare :Liane Thuvander; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; building stock; information system; environmental system analysis; energy flows; building stock information system; material flows; environmental informatics; urban system analysis; environment; sustainable sevelopment;

    Sammanfattning : The Swedish building sector uses a considerable amount of all materials and all energy used in Sweden. Knowledge about the existing building stock, its impact on the environment related to the use of material and energy, however, is limited and target settings for environmental objectives and decision making are based on vague information. LÄS MER

  4. 3. Gårdsstrukturer i Halland under bronsålder och äldre järnålder : Farm Structures in Halland in the Bronze Age and Early Iron Age

    Författare :Jörgen Streiffert; Göteborgs universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; household organization; three-aisled house; house plan; dwelling house; room formation; dwelling room; utility section; hearths; pits; Bronze-Age; Pre-Roman Iron Age; Roman Iron Age; Migration Period; Viking Age; Middle Ages; Halland;

    Sammanfattning : The dissertation Gårdsstrukturer i Halland under bronsålder och äldre järnålder consists of two separate parts. One is the licentiate thesis På gården from 1999 while the other is a supplementary part entitled Boningshusets rumsbildningar. LÄS MER

  5. 4. Cracking in Reinforced Concrete Structures Due to Imposed Deformations

    Författare :Agnes Nagy; Avdelningen för Konstruktionsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; minimum reinforcement; cracking; softening; shrinkage; cooling; imposed deformations; conversion formula; static E-modulus; damping coefficient; resonance frequency; dynamic E-modulus; constitutive model; thermal stress; hydration process; reinforced concrete structure; early age; crack control; Building construction; Byggnadsteknik;

    Sammanfattning : This thesis is concerned with modeling of the cracking process in reinforced concrete due to imposed deformations. Cracking is investigated both at early ages, during hydration, and at mature age when the final properties of the concrete are reached. LÄS MER

  7. 5. Low Portland cement content concretes at freezing and subfreezing temperatures

    Författare :Ankit Kothari; Andrzej Cwirzen; Hans Hedlund; Karin Habermehl-Cwirzen; Aleksandra Radlinska; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Byggmaterial; Building Materials;

    Sammanfattning : Concrete is the most used building material. With the increasing growth of industries and urbanization globally; the demand for concrete is increasing significantly. Ordinary Portland Cement (PC) is the binder used to produce typical concrete. Unfortunately, for every ton of manufactured cement about 0. LÄS MER