Sökning: "roof truss"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden roof truss.
1. Medieval Timber Roof Structures: Conceptual methods for investigation and evaluation of structural behaviour, with the horizontal thrust problem as an application
Sammanfattning : The medieval timber roof structures hidden in the attics of many Swedish churches represent the advanced building technology of the time. They are an important cultural heritage, their being bearers of information from a period regarding which other direct sources of information are scarce. LÄS MER
2. Träbärverk i äldre svenska kyrkor: Verkningssätt hos takstolar utan bindbjälke
Sammanfattning : The study concerns the structural behaviour of old wooden roof trusses in Swedish churches. FE-modelling of their properties as based on seven different trusses was used in evaluations aimed at the creation of a tool for gaining a better understand¬ing of such trusses. The trusses investigated all lacked tie beams and were of wide span. LÄS MER
3. Historiska träbärverk : Strukturmekaniska metoder och visualisering
Sammanfattning : In designing and erecting buildings in historical times, creating the loadcarrying structure was perhaps the greatest challenge with which the architect and the builder were faced. We encounter structures in which there was a strive to reach vertical heights in the pillars and walls and to extend the horizontal span of the beams and vaults that were built. LÄS MER
4. Probabilistic System Effects in Timber Structures
Sammanfattning : The main purpose of the performed research presented in this thesis is to increase the understanding of the effect of variability of strength properties on the reliability of timber structural systems. Compared to other structural materials such as steel and concrete, structural timber has a considerably higher variability of strength both within and between members. LÄS MER
5. Probabilistic Analysis and Reliability of Engineering Structures
Sammanfattning : This thesis, consisting of six papers, concerns methods for probabilistic analysis of engineering structures. The work comprises evaluations of available methods, developments of new and improved methods, and applications of probabilistic analysis to engineering structures. LÄS MER