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Visar resultat 1 - 5 av 60 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Durability of timber members : Moisture conditions and service life assessment of bridge detailing

   Författare :Jonas Niklewski; Avdelningen för Konstruktionsteknik; []
   Nyckelord :wood; spruce; moisture; durability; decay; service life; detailing; model;

   Sammanfattning : The longevity of timber structures in exposed outdoor environments is often perceived to be unreliable as compared with that of concrete and steel structures. This situation is exacerbated to some extent by the fact that the European commission for standardization (CEN) currently provides no quantitative method for service life assessment of timber structures. LÄS MER

3. 2. Concrete flat slabs and footings : Design method for punching and detailing for ductility

   Författare :Carl Erik Broms; Håkan Sundquist; Mikael Hallgren; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Construction engineering; bent-down bars; building codes; cyclic loading; deflection; ductility; earthquake; Byggnadsteknik; Building engineering; Byggnadsteknik;

   Sammanfattning : Simple but still realistic physical models suitable for structural design of flat concrete plates and column footings with respect to punching are presented. Punching of a flat plate is assumed to occur when the concrete compression strain at the column edge due to the bending moment in the slab reaches a critical value that is considerably lower than the generally accepted ultimate compression strain 0. LÄS MER

4. 3. Structural Behaviour in Concrete Frame Corners of Civil Defence Shelters Non-linear Finite Element Analyses and Experiments

   Författare :Morgan Johansson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; blast load; non-linear finite element analyses; reinforcement detailing; spliced reinforcement; frame corners; civil defence shelters; impact load; concrete;

   Sammanfattning : From a safety point of view it is important that a concrete structure, apart from necessary load capacity, also is able to show ductile behaviour that allows redistribution of forces so that a local failure not lead to total collapse of the structure. A structure's ability to exhibit such behaviour is highly dependent on the reinforcement detailing of the joint connections between its independent members. LÄS MER

5. 4. Bostadens arkitektur och berikad miljö

   Författare :Hanna Morichetto; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; movement; residential architecture; health; atmosphere; multisensory stimulation; enriched environments; materials and detailing; spatial extension;

   Sammanfattning : Residential Architecture and Enriched Environments The importance of the physical environment to human health is a subject of growing interest and research. One way to understand this link is through the concept of enriched environments. LÄS MER

7. 5. New reinforcement detailing in concrete frame corners of civil defence shelters : non-linear finite element analyses and experiments

   Författare :Morgan Johansson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : .... LÄS MER