Sökning: "wood building techniques"

Visar resultat 1 - 5 av 18 avhandlingar innehållade orden wood building techniques.

1. 1. Byggnadsteknik och timmermanskonst: en studie med exempel från några medeltida knuttimrade kyrkor och allmogehus

   Författare :Peter Sjömar; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wood building techniques; timber construction; corner-joints; medieval building techniques;

   Sammanfattning : This survey deals with building techniques based on the use of horizontally laid logs with interlocking corner-joints. The aim is to make an inventory of buildings methods and materials, based on existing medieval buildings, literary sources and current methods of carpentry.Chapter 1. A commentary on research and documentation. LÄS MER

3. 2. Mould on building materials - A calorimetric study of fungal activity as a function of environmental factors

   Författare :Yujing Li; Avdelningen för Byggnadsmaterial; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; materiallära; byggnadsteknik; building construction; fungal activity; temperature; relative humidity; building; image analysis; indoor environment; wood; materialteknik; material technology; mould; calorimetry; isothermal calorimeter;

   Sammanfattning : Mould problems in buildings have become a growing concern during the past decades. The growth of mould fungi indoors deteriorates air quality, influences human health and causes economical losses. Preventing mould growth from occurring is a more cost effective option than cleaning and renovation of buildings with mould problems. LÄS MER

4. 3. Strength grading of structural timber and EWP laminations of Norway spruce : Development potentials and industrial applications

   Författare :Jan Oscarsson; Anders Olsson; Marie Johansson; Hans Joachim Blass; SE-351 96 Växjö Videum Science Park SP Technical Research Institute of Sweden SP Wood Technology; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fibre angle; grain angle; knots; laser scanning; machine strength grading; modulus of elasticity; side boards; strain; structural timber; wet gluing; wood; Byggteknik; Civil engineering;

   Sammanfattning : Machine strength grading of structural timber is a sawmill process by which considerable value is added to sawn products. The principle of such grading is that the strength of a timber member is predicted on the basis of a so called indicating property (IP) which, in general, represents an averaged value of the modulus of elasticity (MOE) measured over a board length of about one meter or more. LÄS MER

5. 4. Modeling the effects of knots in Structural Timber

   Författare :Christina Foley; Avdelningen för Konstruktionsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material technology; Byggnadsteknik; Building construction; three-dimensional fiber paradigm; fiber deviation; knots; annual growth layer; material matrix; knot bump; structural timber; load carrying capacity; Materiallära; critical knot; knot distance ratio; local principal material directions; stiffness; materialteknik;

   Sammanfattning : The main purpose of the pursued research is to increase knowledge of the effects of knots in structural timber so that characteristics of weaker timber may be determined and applied to improve current grading techniques. In the process, a three-dimensional fiber paradigm was established, which describes variations of local principle material axes in timber containing knots. LÄS MER

7. 5. Vernacular Buildings and Urban Social Practice - Wood and people in Early Modern Swedish Society

   Författare :Andrine Nilsen; Göteborgs universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; historical archaeology; early modern; city scape; urbanity; Swedish building practices; building stock; log timber construction; timber-framing technique; post and plank construction; storeyed buildings; mixed techniques; the production of space; social dimensions; centre; periphery; marginality;

   Sammanfattning : Wooden houses were major components of the early modern Swedish townscape. Yet, today these buildings have largely disappeared due to fires, demolition and modernity. The main themes of the thesis are the study of what kind of wooden building techniques were used within the urban environment. LÄS MER