Search for dissertations about: "arch bridges"

Showing result 1 - 5 of 7 swedish dissertations containing the words arch bridges.

2. 1. Capacity assessment of arch bridges with backfill : Case of the old Årsta railway bridge

   Author : Andreas Andersson; Håkan Sundquist; Raid Karoumi; Clive Melbourne; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Concrete arch bridge; soil backfill; spandrel walls; field measurements; finite element method; load distribution; ultimate limit state.; Betongbågbro; jordfyllning; sidomur; fältmätningar; finita element metoder; lastspridning; brottgränstillstånd.; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur;

   Abstract : The work presented in this thesis comprises the assessment of existing arch bridges with overlying backfill. The main objective is to estimate the load carrying capacity in ultimate limit state analysis. A case study of the old Årsta railway bridge is presented, serving as both the initiation and a direct application of the present research. READ MORE

4. 2. On some Fatigue Problems Related to Steel Bridges

   Author : Roberto Crocetti; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; modular bridge expansion joints; full-scale testing; web breathing; postbuckling behaviour; fatigue; riveted connections;

   Abstract : This thesis concerns three specific fatigue topics related to steel members in bridges, namely: (1) Modular Bridge Expansion Joints (MBEJs). Several premature fatigue failures of MBEJs have occurred in Europe and USA during the past decades. READ MORE

5. 3. Sensory-motor regulation of human biting behavior

   Author : Krister Svensson; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : In order to control oral motor behavior, such as biting and chewing, we rely on information provided by a variety of sense organs, including periodontal mechanoreceptors (PMRs). The PMRs, located among the collagen fibers in the periodontal ligament that attaches the root of the tooth to the alveolar bone, send signals to the central nervous system when the surrounding collagen fibers are stretched by loading of the tooth. READ MORE

6. 4. Borderline archaeology : a practice of contemporary archaeology - exploring aspects of creative narratives and performative cultural production

   Author : Fiona Campbell; Jonna Ulin; Göteborgs universitet; []
   Keywords : HUMANIORA; HUMANITIES; BorderLine Archaology; rhizome; border theory; contemporary archaeology; performance art; performance studies; performativity; material culture; cultural production; the archaeological; performative writing; creative narratives; mapping; parasite; eventscape; walkscape; site-seeing; site-specificity; subjectivity; otherness; excavation; repetition; re-presentation; past-present; labyrinth; movement; croft; family-landscape; postmemory; family album; home;

   Abstract : This dissertation is a joint dissertation, written by two people about the connectivity of two practices; archaeology and performance. Its contents focus upon the creation of a hybrid field of study that has only just begun to exist. READ MORE

7. 5. Single implants in the anterior maxilla in young adults

   Author : Nicole Winitsky; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Background: Single anterior implants are frequently used in the treatment of patients with single anterior tooth loss. Compared with other types of implant treatments, single implants are commonly performed in younger patients where the cause of tooth loss often is non-inflammatory. READ MORE