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1998 Uppsatser om Steel construction - Sida 18 av 134
Utveckling av stol för café och lunchrum
This is a dissertation for a Bachelor Degree Project at the University of Skövde. The project is carried out in cooperation with the company Kinnarps AB.The objective of this project was to develop a new chair for café and lunch rooms, which should satisfy the markets expectations and demands and match Kinnarps AB?s assortment today. The project has contained everything from identification of user and customer needs and requirements to evaluation and building of a prototype.The result is a chair with a frame of tubular steel and there is nothing like it in Kinnarps AB?s assortment today.
Förslag till ombyggnation av klipp- och bockningsmaskin
This thesis work has been performed on request by SWT (Scandinavia WeldTech AB). SWT manufactures, develop and sell ready to assemble building systems for concrete rafter beam applications. The beams in this system consist of a u-beam that is welded to a flange. To be able to fill the beams with concrete there is holes in the beams top end. The holes are made in a ?punching machine?. These holes are cut out and the remaining steel piece is bent down in the u-beam.
How to build a rein tension meter
A large part of the interactions between horse and rider during horseback riding takes place through the reins and the bit and devices for measuring the tension on the reins, rein tension meters, has fairly recently been developed. To safeguard the welfare of the ridden horse riders need to be aware of the rein tension they apply and actively work to decrease it. Furthermore, there is a need to develop the study of rein tension through new techniques and refined analysis procedures. A good-quality rein tension meter should be small in size, sensitive, durable and as accurate for light rein tension as for strong forces. Rein tension meters used in research on horse and rider interaction commonly depend on strain gauge technique for generating rein tension data.
Direktsamplande digital transciever
Master thesis work at ITN (Department of Science and Technology) in the areas of A/D-construction and RF-circuit design. Major goal of project were to research suitable possibilities for implementations of direct conversion in transceivers operating in the 160MHz band, theoretic study followed by development of components in the construction environment Cadence. Suitable A/D- converter and other important parts were selected at the end of the theoretic study. Subsampling technique was applied to make A/D sample requirements more realistic to achieve. Besides lowering requirements on A/D-converter it allows a more simple construction, which saves more components than subsampling adds.
Byggutbildningen : En undersökning av före detta elevers åsikter om byggutbildningen
How do we match our education with the needs of the construction line of business and the requirementsof the Swedish National Agency for education? Is there something that we have to change?In this study I have asked our former students about their opinion of our education and I have also asked them to give me their view on what a good teacher is like. I have been able to benefit a lot from their answers in my efforts to be that good teacher. This survey took place at Facebook.The answers showed that we carry on a piece of solid workmanship. But you can always improve, try harder.
Terminalisering hos JM AB
During the last decade, the construction industry has focused on improving and optimising its production process. The construction industry is now facing larger changes regarding efficiency in their supply chain for the next decade. Many companies are now trying to optimise its supply chain together with its supplier. JM AB, which is one of the biggest construction companies in Sweden, is looking at different options to improve its own logistics together with their suppliers. One option is to use a terminal between JM and the suppliers to solve problems such as quality, custom service and inventory for the in production.
Elever i behov av särskilt stöd på bygg- och anläggningsprogrammet
Low- performing pupils at the construction programme.
Val av byggproduktionsmetod/ Praktikfall Klammerdamm : Golvgips eller avjämningsmassa
This report is about how to decide which method is the most suitable as floor covering at projectKlammerdamm in the centre of Halmstad. The covering has to be fire resistant and soundproof inorder to protect the wood structure and stop noise from traveling between apartments. There aretwo possibilities either traditional gypsum board or gypsum-based self leveling underlayment.The roads around the construction site are narrow. A regular twenty-five meter long truck has nopossibility to reach the site. The construction site is small and the storage area is limited.
Viktiga aspekter i samverkansformen NCC Projektstudio : En intervjustudie för NCC
The projecting time in the construction industry needs to become more efficient toshorten the amount of time it takes to project a build. One of the North's leadingconstruction company NCC constuction Sweden AB has developed a form ofcollaboration called ?NCC project studio? that they use in some projects today.My thesis consists in bringing forth the most important aspects of the collaborationform called NCC project studio. The point of this is to use my thesis to help thecompany develop a quality document that can assist them when starting collaborationbased on NCC project studio in the future.The conclusion of my thesis was that much of the focus needs to be on explaining tothe participants what NCC is aiming to gain from working with the NCC projectstudio and also which important parts that needs to be worked on..
En kognitiv semantisk analys av partikelverbet gå upp: : Conceptual Metaphor Theory (CMT) kontra Principled Polysemy Approach to Meaning Analysis (PPAMA)
This essay examines the differences and similarities, weaknesses and strengths of the two Cognitive Semantic theories Conceptual Metaphor Theory and Principled Polysemy Approach to Meaning Analysis. To illustrate the two theories, the Swedish verb-particle construction "gå upp" is examined and analyzed accordingly. The results showed differences in the number of polysemous meaning found. The methodological evaluation showed that the differences in the underlying ideas concerning meaning-construction behind these two theories make them incompatible..
Samspelet mellan mål och emotioner vid skapande av motivation
AbstractBackground: The factors goals, emotions and motivation are nowadays well researched. Studies that shows the interaction between these three factors does exist, but in a small amount. In all different jobs people encounter these factors, no matter what you?re working with, some experience them daily and others only sometimes.Purpose: We want to study the significance of the interaction between goals and emotions among employees in the construction business, when leaders are about to motivate their employees.Implementation: To succeed with our study and achieve the purpose, we chose to do a qualitative research. We have conducted four visiting interviews and one telephone interview, with both leaders and employees in the construction business.Results: We have through our study found out that the interaction between goals, emotions and motivation are important in the work of construction, even if it?s not something everyone thinks about.
Optimering av sintrade kugghjul
Powder Metal (PM) gears are machine element components which operate under the same principle as conventional gears, but, due to their intrinsic material characteristic need to be designed slightly different, and its manufacturing process offers advantages previously unobtainable by conventional steel gear manufacturing methods. The use of PM in similar applications, such as synchronous hubs, makes them a suitable candidate for production in such material. The current master thesis work focuses on gear design using PM by utilizing finite element method (FEM) to reduce weight and inertia taking into account root bending strength and tooth deflection.First a topological optimization is used to determine feasible candidates for different web designs which have as objective to reduce volume, similar topologies were shown during different loading conditions; and hence, this topology was chosen as a suitable candidate. A shape optimization of the topological candidate was performed having as state variables root bending strength, independent for compressive and tensile side of the tooth loading; and tooth deflection, which in concept can be correlated to static transmission error (TE).Another aspect in this thesis analysed is the possibility to incorporate non-trochoid root geometry, a trochoid root is always present when machining with a hob, into the gear root and hence reduce the stress concentration here. Due to the use of PM, a non-symmetric optimized root can be achieved and hence be optimizing compression and tension.Results showed significantly lower inertia, for example certain results showed 40% reduced when compared to solid gear, with adverse effects as increase in tooth deformation and increase in maximum principal stress.
Annedal ? Boendekostnader i en helt ny stadsdel och sambandet med upplevd stadskvalitet
Annedal is a brand new neighborhood in the Bromma part of Stockholm. The neighborhood construction has now reached its halfway point. When finished, 5000 people are estimated to live in Annedal. The focus for the new area is variation. Both housing co-operatives and rented apartments have been built and more are under construction.A study about the valuation of town quality in the Stockholm region was produced by the Stockholm County Council in 2011.
Dimensionering av Traverskranbana
Kranlaster som verkar på kranbanor varierar med tiden och kan inte behandlas som statiska laster, detta gör att en statisk beräkning inte är tillräckligt säker, därför bör kranbalkar utformas på så sett att den klarar av statiska såväl som dynamiska kranlaster.Arbetet valdes efter förstudier som gjordes på internet för att få grundläggande kunskap om ämnet. Informationen söktes på svenska, engelska och tyska för att kunna hitta relevanta och pålitliga källor som behandlar traverskranbanor enligt eurokod. Tack vare råd från Björn Åsted från Stålbyggnadsinstitutet (SBI), kunde en bok på tyska hittas. För att kunna jämföra resultaten används ett svenskt program CraneGirder EC3 under arbetet.Rapporten innehåller en beräkningsmodell för en valsad profil balk, beräkningar baserades på eurokod ekvationer och föreskrifter vilket var som dimensionerings underlag för arbetet. I denna rapport hänvisas hur en kranbana skall dimensioneras med hög utnyttjandegrad, ett antal kontroller gjordes för att säkerställa att balken och dess detaljer, såsom räl och svets är säkert utformade mot utmattning och deformation.
"Det är så himla viktigt kring yrkesidentitet" : En narrativ studie av berättelser om folkbibliotekarien
This Master's thesis aims to investigate librarians' identity construction through the study of their narratives about themselves and their lives. We want to understand in what way the education in Library- and Information science contributes to shape the students professional identity and how these identities then continue to be transformed when they enter their professional lives. We assert that this construction of identity takes place through socialisation. We start with the reference work because we think this is a central part of librarians' tasks. Our theoretical starting point is constructionism, we mean that professional identity is a social construction that continuously is formed and transformed.We interviewed six former students at Library- and Information science at Lund University.