Search for dissertations about: "strength grading"

Showing result 21 - 25 of 29 swedish dissertations containing the words strength grading.

2. 21. Numerical Modelling of Timber Building Components to Prevent Disproportionate Collapse

   Author : Johannes A. J. Huber; Sven Berg; Dick Sandberg; Mats Ekevad; Ulf Arne Girhammar; Jan-Willem G. van de Kuilen; Luleå tekniska universitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finite element modelling; alternative load paths; cross laminated timber; progressive collapse; CT scanning; fibre reconstruction; image analysis; Träteknik; Wood Science and Engineering;

   Abstract : An increasing number of multi-storey buildings are being constructed with engineered wood products, such as glulam or cross-laminated timber (CLT). Multi-storey timber buildings can be safely designed for foreseeable loads, but knowledge is limited concerning their ability to survive unforeseeable events, e.g. READ MORE

4. 22. Strengthening of concrete beams using cementitious carbon fibre composites

   Author : Anders Wiberg; KTH; []
   Keywords : civil; materials science; textile technology;

   Abstract : The research described in this thesis deals with the use ofcement-based carbon fibre reinforced composites forstrengthening of existing structural concrete. There is a large world-wide need for simple and reliablemethods to repair and strengthen aging infrastructure andbuildings. READ MORE

5. 23. Resilient and permanent deformation behavior of unbound aggregates under repeated loading

   Author : Fredrick Lekarp; KTH; []
   Keywords : ;

   Abstract : During recent decades, growing interest in the developmentof so-called analytical or mechanistic road pavement designmethods has resulted in substantial research into themechanical behavior of the materials involved. In flexiblepavements, especially when unsurfaced or thinly surfaced,overall structural performance is largely dependent on thebehavior of the unbound granular base and subbase layers. READ MORE

6. 24. Mechanics of Cross-Laminated Timber

   Author : Dietrich Buck; Olle Hagman; Dick Sandberg; Mats Ekevad; Mikael Sjödahl; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CLT assembly; CLT manufacture; Crosslam; DIC analysis; Digital speckle photography; Full-field mechanics; Laminated wood product; Mass timber engineering; Non-contact measurement; Non-destructive; Optical measurement; Panel configuration; Strain localization; X-lam; Alternativ byggmetod; Bildkorrelation; Hållbart byggande; KL- trä; Korslimmat trä; Skjuvtöjning; Massivträ; Träkonstruktion; Träteknik; Wood Science and Engineering;

   Abstract : Increasing awareness of sustainable building materials has led to interest in enhancing the structural performance of engineered wood products. Wood is a sustainable, renewable material, and the increasing use of wood in construction contributes to its sustainability. READ MORE

7. 25. An investigation into some aspects for foamed bitumen technology

   Author : May Namutebi; Björn Birgisson; Alvaro Guarin; Umaru Bagampadde; Baoshan Huang; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Foamed bitumen; Binder ageing; Aggregate coating; Compaction; Mix design; Aggregate porosity; Civil and Architectural Engineering; Byggvetenskap;

   Abstract : Despite applications of foamed bitumen technology in pavement construction in various places around the world, there are still several aspects about this technology that are not clear. In addition, knowledge on foamed bitumen technology is mainly empirical and lacks scientific basis. READ MORE