Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Klima-indusert hygrotermisk ytelse av en stål-tre forbindelse i Tretten bru og dens innvirkning på den konstruksjonstekniske oppførselen.
The primary objective of this master’s thesis is to conduct an analysis of the climate-induced hygrothermal stresses in dowel-type joints within glulam truss bridges. Both wood and steel, the primary materials used in these joints, are sensitive to climatic changes. Given that structures like glulam truss bridges are exposed to diverse environmental conditions, it is crucial to examine how these fluctuations may influence their long-term structural performance. The study employs numerical analysis to examine four sections of the joint structure from the case study, facilitating exploration of consistent climatic factors across varying sections. Uniform environmental conditions ensure methodological rigor and enable meaningful comparative analysis. The analysis progresses through hygrothermal analysis using WUFI® 2D, computational processing of output (in Excel) for ABAQUS, and structural analysis within ABAQUS. The findings indicate that moisture content variations have minimal effect on steel performance across the entirety of the joint, while significantly impacting wood. The outermost wood sections demonstrate the largest fluctuations in moisture content, with the exception of the upward-facing side shielded by a metal cover. The presence of dowel holes accelerates moisture penetration, leading to rapid increases in moisture levels compared to other areas. However, moisture content stabilizes progressively towards the joint’s core due to the presence of continuous steel plates and dowels acting as barriers. Thermal energy infiltrate the joint’s core with minimal dissipation for both steel and wood. Steel exhibits larger deformations in response to temperature variations compared to wood. Despite wood’s more pronounced deformations in the exposed part of the joint, steel displays greater deformations in segments further into the joint. Notably, steel often bears maximum stresses in both the exposed part and the core due to its higher load-carrying capacity. However, the thesis reveals that within the wood, the ...
Klima-indusert hygrotermisk ytelse av en stål-tre forbindelse i Tretten bru og dens innvirkning på den konstruksjonstekniske oppførselen.
The primary objective of this master’s thesis is to conduct an analysis of the climate-induced hygrothermal stresses in dowel-type joints within glulam truss bridges. Both wood and steel, the primary materials used in these joints, are sensitive to climatic changes. Given that structures like glulam truss bridges are exposed to diverse environmental conditions, it is crucial to examine how these fluctuations may influence their long-term structural performance. The study employs numerical analysis to examine four sections of the joint structure from the case study, facilitating exploration of consistent climatic factors across varying sections. Uniform environmental conditions ensure methodological rigor and enable meaningful comparative analysis. The analysis progresses through hygrothermal analysis using WUFI® 2D, computational processing of output (in Excel) for ABAQUS, and structural analysis within ABAQUS. The findings indicate that moisture content variations have minimal effect on steel performance across the entirety of the joint, while significantly impacting wood. The outermost wood sections demonstrate the largest fluctuations in moisture content, with the exception of the upward-facing side shielded by a metal cover. The presence of dowel holes accelerates moisture penetration, leading to rapid increases in moisture levels compared to other areas. However, moisture content stabilizes progressively towards the joint’s core due to the presence of continuous steel plates and dowels acting as barriers. Thermal energy infiltrate the joint’s core with minimal dissipation for both steel and wood. Steel exhibits larger deformations in response to temperature variations compared to wood. Despite wood’s more pronounced deformations in the exposed part of the joint, steel displays greater deformations in segments further into the joint. Notably, steel often bears maximum stresses in both the exposed part and the core due to its higher load-carrying capacity. However, the thesis reveals that within the wood, the ...
Klima-indusert hygrotermisk ytelse av en stål-tre forbindelse i Tretten bru og dens innvirkning på den konstruksjonstekniske oppførselen.
Rogstad-Karlsen, Ingrid (Autor:in) / Gjerlaug, Astrid Frøyen (Autor:in) / Erduran, Emrah / Kraniotis, Dimitrios
Hochschulschrift
Elektronische Ressource
Englisch
Konstruksjonsmessige synspunkter i forbindelse med sprøbrudd
| TIBKAT | 1957
Bilbrande opstået i forbindelse med færdselsuheld
| TIBKAT | 1971
| Engineering Index Backfile | 1941