Sökning: "Superstructure"

Visar resultat 16 - 20 av 37 avhandlingar innehållade ordet Superstructure.

1. 16. Breathtaking Greenhouse Parastructures : a supplement to the Arcades Project from a Caribbean Perspective [and a call for a careful practice of epistemológica]

   Författare :Luis Berríos-Negrón; Leif Dahlberg; Håkan Nilsson; Florian Dombois; Bonaventure Soh Bejeng Ndikung; KTH; []
   Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; greenhouse; colonial memory; phenomenotechnologies; global warming; sculpture; installation art; Art; Technology and Design; Konst; teknik och design;

   Sammanfattning : Breathtaking Greenhouse Parastructures is a doctoral work that supplements the unfinished modern opus The Arcades Project [in German Das Passagen-Werk (Mit Bindestrich und Werk mit Capital W) ]. The supplement takes the form of a sculptural, historical, and technological deposition of ‘greenhouse’ that presently oscillates between a past-background and future-foreground to Walter Benjamin's ‘theatrical’ handling of the Parisian arcades. LÄS MER

3. 17. Composites for commercial ships

   Författare :Måns Håkansson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; design; ship; composites; commercial vessels; optimization; weight reduction; cost-efficient design;

   Sammanfattning : Composite materials have been used in marine applications for more than 50 years, and benefits such as low weight, low maintenance requirements and freedom of design are well known. A wider use of composites in larger, commercial vessels has been limited by initial costs and fire regulations, but both of these obstacles are diminishing. LÄS MER

4. 18. Industrial bridge construction with cast in place concrete : new production methods and lean construction philosophies

   Författare :Peter Simonsson; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

   Sammanfattning : The construction industry is associated with high costs, low productivity, a lack of quality and low profit margins. Too often the actual cost for a project exceeds the expected cost. LÄS MER

5. 19. Efficient Modelling Techniques for Vibration Analyses of Railway Bridges

   Författare :Christoffer Svedholm; Costin Pacoste; Pedro Museros; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Railway bridge; High-speed train; Closed-form solution; Non-proportional damping; Complex mode;

   Sammanfattning : The world-wide development of new high-speed rail lines has led to more stringent design requirements for railway bridges, mainly because high-speed trains can cause resonance in the bridge superstructure. Dynamic simulations, often utilising time-consuming finite element analysis (FEA), have become essential for avoiding such problems. LÄS MER

7. 20. Vibration mitigation of high-speed railway bridges : Application of fluid viscous dampers

   Författare :Sarah Tell; Raid Karoumi; Ülker-Kaustell Mahir; Andreas Andersson; Bill F. Jr. Spencer; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dynamics; vibration mitigation; railway bridge; high-speed trains; bridge deck acceleration; passive damping; fluid viscous dampers; retrofit; dynamik; vibrationsdämpning; järnvägsbro; höghastighetståg; brobaneacceleration; passiv dämpning; viskösa dämpare; eftermontering; Byggvetenskap; Civil and Architectural Engineering;

   Sammanfattning : At the moment of writing, an expansion of the Swedish railway network has started, by constructions of new lines for high-speed trains. The aim is to create a high-speed connection between the most populous cities in Sweden - Stockholm, Göteborg and Malmö, and the rest of Europe. LÄS MER